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• how to set footer image in this video screen?

  - by bala

  hi my problem is how to create footer image in this video screen while playing.... how to create this format. now i am give my description: • 1) Header image, a stretched background image. The location of this external image comes from the application xml; • 2) Footer image, a stretched background image. The location of this external image comes from the application xml; 2.a) the copyright, disclaimer and buy block, this block contains links to popup windows that contain a copyright and or disclaimer. And an option to buy the application for the advertisement less version. The content of this block is fed trough the application XML feed. The color of the text is fed by the application xml plus the popup links and texts itself; • 3) Carousel image, a stretched background image. The location of this external image comes from the application xml; 3.a) the carousel contains objects that can flow from right to left, possibly trough a animation (a soft break of the slide). The first object is centered in the middle of the carousel. This is the first element in the video feed. All the subsequent video object are added to the right of the centered object; 4) Total Video object, this object links to window two with the corresponding video of this object. This object is visually build out of the following sub parts:o 4.a) Thumb object (possible playing video thumb); 4.b) Reflection of the Thumb; 4.c) Textual Explanation of Thumb. 1) Video stream, this is the video stream coming from a external server streamed to the television (maybe up scaled) as 720p stream; 2) Advertisement, the type of advertisement shown overlaid on the video is based on previous settings in the video feed. This could mean that Admob, Adsense or a third party image plus URL could be shown. When the advertisement is selected trough navigation (it will highlight in a different color as a border around the advertisement. The color an thickness can be managed trough the application xml), when clicked a browser will open with the associated site (the application will be pushed to the background process, when the user is finished it will return to the app); 3) A back button, an image and navigational element. The location of the image comes from the application xml. The button is only shown when a cursor is moved (a button is pressed on the remote) it will highlight when selected and when pressed will forward the screen to the main window. When the main window is opened the video will be removed from cache and memory and cannot be start from the point it was exited. please give me your idea....

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• Database Schema Versioning Strategies

  - by Jack Ryan

  I work on a project that uses a reasonably large database, the live version weighing in at somewhere around 60-80GB. The live database is the only real definitive source of our schema, and because of its size duplicating this database is too slow to be done often. This means we have ended up developing our database schema in a pretty ad hoc way, using sql compare to migrate changes from dev dbs to the live system, and only wiping our dev dbs every month or two. I am hoping to get some pointers on how to improve our database development work flow so that we have a little more control. Some things to think about: Currently nobody is really in charge of the database schema, all developers can change it if they need to, though generally these decisions are talked about before they are done. There are stored procedures, functions, and views in the database. These should probably be dumped to files so they can be reloaded on every build. Schema changes should probably be checked in as scripts. We have started to do this recently. However all our scripts must then be numbered (because there may be dependencies between them), and must be re runnable (because our build script currently runs them all in order). This makes them hard to read because they are full of conditionals that check whether tables or columns already exist. This is a step that is often forgotten by developers. Getting a new database should be quick and easy. This is currently a big problem, it takes several hours to get a copy of last nights backup and restore it onto a dev machine. Some mechanism needs to be in place to allow developers to update static data. We have tables that contain data that is never updated through the application, but does potentially need to be changed when we do a new release (often this drives dropdowns). The whole thing needs to be runnable as part of a build script. Are there any tools that can be used to help to do this? Eventually I would like to be at a point where a new DB can be built from scratch without copying any data from the live system. I don't mind writing some scripts to glue all the steps together but each part should be easily editable so that we continue to use it rather than make changes directly on DBs.

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• File upload control - Select file is lossed when 2nd control is initiatied

  - by Barry

  Our problem/question revolves around an upload control that loses the selected file (goes blank) when a postback control is used (in this case, the dropdown list posts). Any insight into what we are doing wrong or how we can fix this? Below is our code and a summary of the problem. Any help would be greatly appreciated. Thank you! <asp:updatepanel id="UpdatePanel1" runat="server"> <ContentTemplate> <div class="row"> <asp:DropDownList runat="server" AutoPostBack="true" ID="CategorySelection" OnSelectedIndexChanged="CategorySelection_IndexChanged" CssClass="drop-down-list" /> </div> <div id="SubCategory" class="row" runat="server" visible="false"> <asp:DropDownList runat="server" ID="SubCategorySelection" CssClass="drop-down-list" /> </div> <div class="row"> <asp:FileUpload runat="server" ID="FileUpload" CssClass="file-upload" /> </div> <div class="row"> <asp:Button ID="submit" runat="server" Text="Submit" CssClass="button" OnClick="submit_ButtonClick" /> </div> </ContentTemplate> <Triggers> <asp:PostBackTrigger ControlID="submit" /> </Triggers> </asp:updatepanel> In this form we have 2 DropDownList, 1 FileUpload and 1 submit button. Every time that the user selects one category, the subcategories are loaded (AutoPostBack=”true”). The primary user flow works fine: User selects one category, subcategory and selects a file to be uploaded (submitted). HOWEVER, if the user selects a file first, and then selects a category, the screen will do a partial refresh and the selected file will disappear (field goes blank). As a result, the user needs to select the file again. This causes an issue because the fact that the file is no longer selected can easily be overlooked. Seems straighforward --- but causing us a lot of grief. Any experts out there that can help? BIG thanks!

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• Vacuum spread in a tile-based space game (like in Faster Than Light game)

  - by Reeze

  I've a space game with tilemap that looks like this (simplified): Map view - from top (like in SimCity 1) 0 - room space, 1 - some kind of wall, 8 - "lock" beetween rooms public int[,] _layer = new int[,] { { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, { 1, 1, 8, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, { 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, { 0, 1, 0, 8, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, { 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, }; Each tile contains Air property (100 = air, 0 = vacuum). I made a little helper method to take tiles near tile with vacuum (to "suck air"): Point[] GetNearCells(Point cell, int distance = 1, bool diag = false) { Point topCell = new Point(cell.X, cell.Y - distance); Point botCell = new Point(cell.X, cell.Y + distance); Point leftCell = new Point(cell.X - distance, cell.Y); Point rightCell = new Point(cell.X + distance, cell.Y); if (diag) { return new[] { topCell, botCell, leftCell, rightCell }; } Point topLeftCell = new Point(cell.X - distance, cell.Y - distance); Point topRightCell = new Point(cell.X + distance, cell.Y + distance); Point botLeftCell = new Point(cell.X - distance, cell.Y - distance); Point botRightCell = new Point(cell.X - distance, cell.Y - distance); return new[] { topCell, botCell, leftCell, rightCell, topLeftCell, topRightCell, botLeftCell, botRightCell }; } What is the best practice to fill rooms with vacuum (decrease air) from some point? Should i use some kind of water flow? Thank you for any help!

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• PHP Changing Class Variables Outside of Class

  - by Jamie Bicknell

  Apologies for the wording on this question, I'm having difficulties explaining what I'm after, but hopefully it makes sense. Let's say I have a class, and I wish to pass a variable through one of it's methods, then I have another method which outputs this variable. That's all fine, but what I'm after is that if I update the variable which was originally passed, and do this outside the class methods, it should be reflected in the class. I've created a very basic example: class Test { private $var = ''; function setVar($input) { $this->var = $input; } function getVar() { echo 'Var = ' . $this->var . '<br />'; } } If I run $test = new Test(); $string = 'Howdy'; $test->setVar($string); $test->getVar(); I get Var = Howdy However, this is the flow I would like: $test = new Test(); $test->setVar($string); $string = 'Hello'; $test->getVar(); $string = 'Goodbye'; $test->getVar(); Expected output to be Var = Hello Var = Goodbye I don't know what the correct naming of this would be, and I've tried using references to the original variable but no luck. I've come across this in the past, with the PDO prepared statements, see Example #2 $stmt = $dbh->prepare("INSERT INTO REGISTRY (name, value) VALUES (?, ?)"); $stmt->bindParam(1, $name); $stmt->bindParam(2, $value); // insert one row $name = 'one'; $value = 1; $stmt->execute(); // insert another row with different values $name = 'two'; $value = 2; $stmt->execute(); I know I can change the variable to public and do the following, but it isn't quite the same as how the PDO class handles it, and I'm really looking to mimic that behaviour. $test = new Test(); $test->setVar($string); $test->var = 'Hello'; $test->getVar(); $test->var = 'Goodbye'; $test->getVar(); Any help, ideas, pointers, or advice would be greatly appreciated, thanks.

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• Refactor the following two C++ methods to move out duplicate code

  - by ossandcad

  I have the following two methods that (as you can see) are similar in most of its statements except for one (see below for details) unsigned int CSWX::getLineParameters(const SURFACE & surface, vector<double> & params) { VARIANT varParams; surface->getPlaneParams(varParams); // this is the line of code that is different SafeDoubleArray sdParams(varParams); for( int i = 0 ; i < sdParams.getSize() ; ++i ) { params.push_back(sdParams[i]); } if( params.size() > 0 ) return 0; return 1; } unsigned int CSWX::getPlaneParameters(const CURVE & curve, vector<double> & params) { VARIANT varParams; curve->get_LineParams(varParams); // this is the line of code that is different SafeDoubleArray sdParams(varParams); for( int i = 0 ; i < sdParams.getSize() ; ++i ) { params.push_back(sdParams[i]); } if( params.size() > 0 ) return 0; return 1; } Is there any technique that I can use to move the common lines of code of the two methods out to a separate method, that could be called from the two variations - OR - possibly combine the two methods to a single method? The following are the restrictions: The classes SURFACE and CURVE are from 3rd party libraries and hence unmodifiable. (If it helps they are both derived from IDispatch) There are even more similar classes (e.g. FACE) that could fit into this "template" (not C++ template, just the flow of lines of code) I know the following could (possibly?) be implemented as solutions but am really hoping there is a better solution: I could add a 3rd parameter to the 2 methods - e.g. an enum - that identifies the 1st parameter (e.g. enum::input_type_surface, enum::input_type_curve) I could pass in an IDispatch and try dynamic_cast< and test which cast is NON_NULL and do an if-else to call the right method (e.g. getPlaneParams() vs. get_LineParams()) The following is not a restriction but would be a requirement because of my teammates resistance: Not implement a new class that inherits from SURFACE/CURVE etc. (They would much prefer to solve it using the enum solution I stated above)

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• RequestFactoryEditorDriver getting edited data after flush

  - by Deanna

  Let me start with I have a solution, but I don't really think it is elegant. So, I am looking for a cleaner way to do this. I have an EntityProxy displayed in a view panel. The view panel is a RequestFactoryEditorDriver only using display mode. The user clicks on a data element and opens a popup editor to edit a data element of the EntityProxy with a few more bits of data than is displayed in the view panel. When the user saves the element I need the view panel to update the display. I ran into a problem because the RequestFactoryEditorDriver of the popup editor flow doesn't let you get to the edited data. The driver uses the passed in context and sends it to the server. The context returned out of flush only allows a Receiver even if you cast it to the type of context you stored in the editor driver in the edit() call. It doesn't appear to send and EntityProxyChanged event either, so I couldn't listen for that and update the display view. The solution I found was to change my domain object persist to return the newly saved entity. Then create the popup editor like this editor.getSaveButtonClickHandler().addClickHandler(createSaveHandler(driver, editor)); // initialize the Driver and edit the given text. driver.initialize(rf, editor); PlayerProfileCtx ctx = rf.playerProfile(); ctx.persist().using(playerProfile).with(driver.getPaths()) .to(new Receiver<PlayerProfileProxy>(){ @Override public void onSuccess(PlayerProfileProxy profile) { editor.hide(); playerProfile = profile; viewDriver.display(playerProfile); } }); driver.edit(playerProfile, ctx); editor.centerAndShow(); Then in the save handler I just fire the context I get from the flush. While this approach works, it doesn't seem right. It would seem I should subscribe to the entitychanged event in the display view and update the entity and the view from there. Also this approach saves the complete entity, not just the changed bits, which will increase bandwidth usage. What I would think should happen, is when you flush the entity it should 'optimistically' update the rf managed version of the entity and fire the entity proxy changed event. Only reverting the entity if something went wrong in the save. The actual save should only send the changed bits. In this way there isn't a need to refetch the whole entity and send that complete data over the wire twice. Is there a better solution?

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• Please Describe Your Struggles with Minimizing Use of Global Variables

  - by MetaHyperBolic

  Most of the programs I write are relatively flowchartable processes, with a defined start and hoped-for end. The problems themselves can be complex but do not readily lean towards central use of objects and event-driven programming. Often, I am simply churning through great varied batches of text data to produce different text data. Only occasionally do I need to create a class: As an example, to track warnings, errors, and debugging message, I created a class (Problems) with one instantiation (myErr), which I believe to be an example of the Singleton design pattern. As a further factor, my colleagues are more old school (procedural) than I and are unacquainted with object-oriented programming, so I am loath to create things they could not puzzle through. And yet I hear, again and again, how even the Singleton design pattern is really an anti-pattern and ought to be avoided because Global Variables Are Bad. Minor functions need few arguments passed to them and have no need to know of configuration (unchanging) or program state (changing) -- I agree. However, the functions in the middle of the chain, which primarily control program flow, have a need for a large number of configuration variables and some program state variables. I believe passing a dozen or more arguments along to a function is a "solution," but hardly an attractive one. I could, of course, cram variables into a single hash/dict/associative array, but that seems like cheating. For instance, connecting to the Active Directory to make a new account, I need such configuration variables as an administrative username, password, a target OU, some default groups, a domain, etc. I would have to pass those arguments down through a variety of functions which would not even use them, merely shuffle them off down through a chain which would eventually lead to the function that actually needs them. I would at least declare the configuration variables to be constant, to protect them, but my language of choice these days (Python) provides no simple manner to do this, though recipes do exist as workarounds. Numerous Stack Overflow questions have hit on the why? of the badness and the requisite shunning, but do not often mention tips on living with this quasi-religious restriction. How have you resolved, or at least made peace with, the issue of global variables and program state? Where have you made compromises? What have your tricks been, aside from shoving around flocks of arguments to functions?

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• IntentService android download and return file to Activity

  - by Andrew G

  I have a fairly tricky situation that I'm trying to determine the best design for. The basics are this: I'm designing a messaging system with a similar interface to email. When a user clicks a message that has an attachment, an activity is spawned that shows the text of that message along with a paper clip signaling that there is an additional attachment. At this point, I begin preloading the attachment so that when the user clicks on it - it loads more quickly. currently, when the user clicks the attachment, it prompts with a loading dialog until the download is complete at which point it loads a separate attachment viewer activity, passing in the bmp byte array. I don't ever want to save attachments to persistent storage. The difficulty I have is in supporting rotation as well as home button presses etc. The download is currently done with a thread and handler setup. Instead of this, I'd like the flow to be the following: User loads message as before, preloading begins of attachment as before (invisible to user). When the user clicks on the attachment link, the attachment viewer activity is spawned right away. If the download was done, the image is displayed. If not, a dialog is shown in THIS activity until it is done and can be displayed. Note that ideally the download never restarts or else I've wasted cycles on the preload. Obviously I need some persistent background process that is able to keep downloading and is able to call back to arbitrarily bonded Activities. It seems like the IntentService almost fits my needs as it does its work in a background thread and has the Service (non UI) lifecycle. However, will it work for my other needs? I notice that common implementations for what I want to do get a Messenger from the caller Activity so that a Message object can be sent back to a Handler in the caller's thread. This is all well and good but what happens in my case when the caller Activity is Stopped or Destroyed and the currently active Activity (the attachment viewer) is showing? Is there some way to dynamically bind a new Activity to a running IntentService so that I can send a Message back to the new Activity? The other question is on the Message object. Can I send arbitrarily large data back in this package? For instance, rather than send back that "The file was downloaded", I need to send back the byte array of the downloaded file itself since I never want to write it to disk (and yes this needs to be the case). Any advice on achieving the behavior I want is greatly appreciated. I've not been working with Android for that long and I often get confused with how to best handle asynchronous processes over the course of the Activity lifecycle especially when it comes to orientation changes and home button presses...

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• Line up swing components by edges

  - by rasen58

  Is it possible to line up swing components? The components are in separate panels which both use flow layout. These two panels are in another panel which is using a grid layout. As you can see there is a subtle difference and I find it annoying. I know that all of the jlabels [the rectangles in blue/purple all have the same size, so i think it might be because of the '+' and '*', but I'm not sure because the left sides of the first two boxes aren't lined up. the panels JPanel panel2 = new JPanel(new GridLayout(4, 1)); JPanel panel2a = new JPanel(new FlowLayout()); JPanel panel2b = new JPanel(new FlowLayout()); the first two rectangles (purple) add1 = new JLabel("", JLabel.CENTER); add1.setTransferHandler(new TransferHandler("text")); add1.setBorder(b2); add2 = new JLabel("", JLabel.CENTER); add2.setTransferHandler(new TransferHandler("text")); add2.setBorder(b2); the two blue rectangles textFieldA = new JTextField(); textFieldA.setHorizontalAlignment(JTextField.CENTER); textFieldA.setEditable(false); textFieldA.setBorder(new LineBorder(Color.blue)); textFieldM = new JTextField(); textFieldM.setHorizontalAlignment(JTextField.CENTER); textFieldM.setEditable(false); textFieldM.setBorder(new LineBorder(Color.blue)); the + and * opA = new JLabel("+", JLabel.CENTER); opS = new JLabel("*", JLabel.CENTER); Showing that the rectangles are the same size Dimension d = card1.getPreferredSize(); int width = d.width + 100; int height = d.height + 50; add1.setPreferredSize(new Dimension(width, height)); add2.setPreferredSize(new Dimension(width, height)); mult1.setPreferredSize(new Dimension(width, height)); mult2.setPreferredSize(new Dimension(width, height)); textFieldA.setPreferredSize(new Dimension(width, height)); textFieldM.setPreferredSize(new Dimension(width, height)); Adding to the panels panel2a.add(add1); panel2a.add(opA); panel2a.add(add2); panel2a.add(enterA); panel2a.add(textFieldA); panel2c.add(mult1); panel2c.add(opM); panel2c.add(mult2); panel2c.add(enterM); panel2c.add(textFieldM); panel2.add(panel2a); panel2.add(panel2c);

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• Python - 2 Questions: Editing a variable in a function and changing the order of if else statements

  - by Eric

  First of all, I should explain what I'm trying to do first. I'm creating a dungeon crawler-like game, and I'm trying to program the movement of computer characters/monsters in the map. The map is basically a Cartesian coordinate grid. The locations of characters are represented by tuples of the x and y values, (x,y). The game works by turns, and in a turn a character can only move up, down, left or right 1 space. I'm creating a very simple movement system where the character will simply make decisions to move on a turn by turn basis. Essentially a 'forgetful' movement system. A basic flow chart of what I'm intending to do: Find direction towards destination Make a priority list of movements to be done using the direction eg.('r','u','d','l') means it would try to move right first, then up, then down, then left. Try each of the possibilities following the priority order. If the first movement fails (blocked by obstacle etc.), then it would successively try the movements until the first one that is successful, then it would stop. At step 3, the way I'm trying to do it is like this: def move(direction,location): try: -snip- # Tries to move, raises the exception Movementerror if cannot move in the direction return 1 # Indicates movement successful except Movementerror: return 0 # Indicates movement unsuccessful (thus character has not moved yet) prioritylist = ('r','u','d','l') if move('r',location): pass elif move('u',location): pass elif move('d',location): pass elif move('l',location): pass else: pass In the if/else block, the program would try the first movement on the priority on the priority list. At the move function, the character would try to move. If the character is not blocked and does move, it returns 1, leading to the pass where it would stop. If the character is blocked, it returns 0, then it tries the next movement. However, this results in 2 problems: How do I edit a variable passed into a function inside the function itself, while returning if the edit is successful? I have been told that you can't edit a variable inside a function as it won't really change the value of the variable, it just makes the variable inside the function refer to something else while the original variable remain unchanged. So, the solution is to return the value and then assign the variable to the returned value. However, I want it to return another value indicating if this edit is successful, so I want to edit this variable inside the function itself. How do I do so? How do I change the order of the if/else statements to follow the order of the priority list? It needs to be able to change during runtime as the priority list can change resulting in a different order of movement to try.

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• iptable CLUSTERIP won't work

  - by Rad Akefirad

  We have some requirements which explained here. We tried to satisfy them without any success as described. Here is the brief information: Here are requirements: 1. High Availability 2. Load Balancing Current Configuration: Server #1: one static (real) IP for each 10.17.243.11 Server #2: one static (real) IP for each 10.17.243.12 Cluster (virtual and shared among all servers) IP: 10.17.243.15 I tried to use CLUSTERIP to have the cluster IP by the following: on the server #1 iptables -I INPUT -i eth0 -d 10.17.243.15 -j CLUSTERIP --new --hashmode sourceip --clustermac 01:00:5E:00:00:20 --total-nodes 2 --local-node 1 on the server #2 iptables -I INPUT -i eth0 -d 10.17.243.15 -j CLUSTERIP --new --hashmode sourceip --clustermac 01:00:5E:00:00:20 --total-nodes 2 --local-node 2 When we try to ping 10.17.243.15 there is no reply. And the web service (tomcat on port 8080) is not accessible either. However we managed to get the packets on both servers by using TCPDUMP. Some useful information: iptable roules (iptables -L -n -v): Chain INPUT (policy ACCEPT 21775 packets, 1470K bytes) pkts bytes target prot opt in out source destination 0 0 CLUSTERIP all -- eth0 * 0.0.0.0/0 10.17.243.15 CLUSTERIP hashmode=sourceip clustermac=01:00:5E:00:00:20 total_nodes=2 local_node=1 hash_init=0 Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy ACCEPT 14078 packets, 44M bytes) pkts bytes target prot opt in out source destination Log messages: ... kernel: [ 7.329017] e1000e: eth3 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None ... kernel: [ 7.329133] e1000e 0000:05:00.0: eth3: 10/100 speed: disabling TSO ... kernel: [ 7.329567] ADDRCONF(NETDEV_CHANGE): eth3: link becomes ready ... kernel: [ 71.333285] ip_tables: (C) 2000-2006 Netfilter Core Team ... kernel: [ 71.341804] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) ... kernel: [ 71.343168] ipt_CLUSTERIP: ClusterIP Version 0.8 loaded successfully ... kernel: [ 108.456043] device eth0 entered promiscuous mode ... kernel: [ 112.678859] device eth0 left promiscuous mode ... kernel: [ 117.916050] device eth0 entered promiscuous mode ... kernel: [ 140.168848] device eth0 left promiscuous mode TCPDUMP while pinging: tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes 12:11:55.335528 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) 10.17.243.1 > 10.17.243.15: ICMP echo request, id 16162, seq 2390, length 64 12:11:56.335778 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) 10.17.243.1 > 10.17.243.15: ICMP echo request, id 16162, seq 2391, length 64 12:11:57.336010 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) 10.17.243.1 > 10.17.243.15: ICMP echo request, id 16162, seq 2392, length 64 12:11:58.336287 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto ICMP (1), length 84) 10.17.243.1 > 10.17.243.15: ICMP echo request, id 16162, seq 2393, length 64 And there is no ping reply as I said. Does anyone know which part I missed? Thanks in advance.

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• Users loggin to 3Com switches authenticated by radius not getting admin priv and no access available

  - by 3D1L

  Hi, Following the setup that I have for my Cisco devices, I got some basic level of functionality authenticating users that loggin to 3Com switches authenticated against a RADIUS server. Problem is that I can not get the user to obtain admin privileges. I'm using Microsoft's IAS service. According to 3Com documentation when configuring the access policy on IAS the value of 010600000003 have to be used to specify admin access level. That value have to be input in the Dial-in profile section: 010600000003 - indicates admin privileges 010600000002 - manager 010600000001 - monitor 010600000000 - visitor Here is the configuration on the switch: radius scheme system server-type standard primary authentication XXX.XXX.XXX.XXX accounting optional key authentication XXXXXX key accounting XXXXXX domain system scheme radius-scheme system local-user admin service-type ssh telnet terminal level 3 local-user manager service-type ssh telnet terminal level 2 local-user monitor service-type ssh telnet terminal level 1 The configuration is working with the IAS server because I can check user login events with the Eventviewer tool. Here is the output of the DISPLAY RADIUS command at the switch: [4500]disp radius SchemeName =system Index=0 Type=standard Primary Auth IP =XXX.XXX.XXX.XXX Port=1645 State=active Primary Acct IP =127.0.0.1 Port=1646 State=active Second Auth IP =0.0.0.0 Port=1812 State=block Second Acct IP =0.0.0.0 Port=1813 State=block Auth Server Encryption Key= XXXXXX Acct Server Encryption Key= XXXXXX Accounting method = optional TimeOutValue(in second)=3 RetryTimes=3 RealtimeACCT(in minute)=12 Permitted send realtime PKT failed counts =5 Retry sending times of noresponse acct-stop-PKT =500 Quiet-interval(min) =5 Username format =without-domain Data flow unit =Byte Packet unit =1 Total 1 RADIUS scheme(s). 1 listed Here is the output of the DISPLAY DOMAIN and DISPLAY CONNECTION commands after users log into the switch: [4500]display domain 0 Domain = system State = Active RADIUS Scheme = system Access-limit = Disable Domain User Template: Idle-cut = Disable Self-service = Disable Messenger Time = Disable Default Domain Name: system Total 1 domain(s).1 listed. [4500]display connection Index=0 ,Username=admin@system IP=0.0.0.0 Index=2 ,Username=user@system IP=xxx.xxx.xxx.xxx On Unit 1:Total 2 connections matched, 2 listed. Total 2 connections matched, 2 listed. [4500] Here is the DISP RADIUS STATISTICS: [4500] %Apr 2 00:23:39:957 2000 4500 SHELL/5/LOGIN:- 1 - ecajigas(xxx.xxx.xxx.xxx) in un it1 logindisp radius stat state statistic(total=1048): DEAD=1046 AuthProc=0 AuthSucc=0 AcctStart=0 RLTSend=0 RLTWait=2 AcctStop=0 OnLine=2 Stop=0 StateErr=0 Received and Sent packets statistic: Unit 1........................................ Sent PKT total :4 Received PKT total:1 Resend Times Resend total 1 1 2 1 Total 2 RADIUS received packets statistic: Code= 2,Num=1 ,Err=0 Code= 3,Num=0 ,Err=0 Code= 5,Num=0 ,Err=0 Code=11,Num=0 ,Err=0 Running statistic: RADIUS received messages statistic: Normal auth request , Num=1 , Err=0 , Succ=1 EAP auth request , Num=0 , Err=0 , Succ=0 Account request , Num=1 , Err=0 , Succ=1 Account off request , Num=0 , Err=0 , Succ=0 PKT auth timeout , Num=0 , Err=0 , Succ=0 PKT acct_timeout , Num=3 , Err=1 , Succ=2 Realtime Account timer , Num=0 , Err=0 , Succ=0 PKT response , Num=1 , Err=0 , Succ=1 EAP reauth_request , Num=0 , Err=0 , Succ=0 PORTAL access , Num=0 , Err=0 , Succ=0 Update ack , Num=0 , Err=0 , Succ=0 PORTAL access ack , Num=0 , Err=0 , Succ=0 Session ctrl pkt , Num=0 , Err=0 , Succ=0 RADIUS sent messages statistic: Auth accept , Num=0 Auth reject , Num=0 EAP auth replying , Num=0 Account success , Num=0 Account failure , Num=0 Cut req , Num=0 RecError_MSG_sum:0 SndMSG_Fail_sum :0 Timer_Err :0 Alloc_Mem_Err :0 State Mismatch :0 Other_Error :0 No-response-acct-stop packet =0 Discarded No-response-acct-stop packet for buffer overflow =0 The other problem is that when the RADIUS server is not available I can not log in to the switch. The switch have 3 local accounts but none of them works. How can I specify the switch to use the local accounts in case that the RADIUS service is not available?

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• SSH connection times out

  - by mark

  Given: vm - a WinXPsp3 virtual machine hosted by a Win7sp1 physical machine alice is the user on vm srv - a Win2008R2sp1 server bob is the user on srv quake - a linux server mark is the user on quake Both vm and srv have the same new installation of cygwin (1.7.9) and openssh. Firewall service is disabled on vm (and its host) and on srv All the machines can be pinged from all the machines. ssh mark@quake works OK from both vm and srv. ssh bob@srv works OK from both quake and vm. ssh alice@vm works on the vm itself only, but it fails on the other two machines: alice@vm ~ $ ssh alice@vm alice@vm's password: Last login: Tue Oct 25 23:42:09 2011 from vm.shunra.net [mark@Quake ~]$ ssh -vvv alice@vm OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to vm [172.30.2.60] port 22. debug1: connect to address 172.30.2.60 port 22: Connection timed out ssh: connect to host vm port 22: Connection timed out bob@Srv ~ $ ssh -vvv alice@vm OpenSSH_5.9p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration data /etc/ssh_config debug2: ssh_connect: needpriv 0 debug1: Connecting to vm [172.30.2.60] port 22. debug1: connect to address 172.30.2.60 port 22: Connection timed out ssh: connect to host vm port 22: Connection timed out I used ssh-host-config both on vm and srv to configure the ssh to run as a windows service. Besides that I did nothing else. Can anyone help me troubleshoot this issue? Thank you very much. EDIT The virtual machine software is VMWare Workstation 7.1.4. I think the problem is in its settings, but I have no idea where exactly. The Network Adapter is set to Bridged. EDIT2 All the machines are located in the company lab, I think all of them are on the same segment, but I may be wrong. Below is the ipconfig /all output for each machine (skipping the linux server). I have deleted the Tunnel adapters to keep the output minimal. If anyone thinks they matter, do tell so and I will post them as well. In addition ping output is given to show that DNS is correct. Something else, may be relevant, may be not. Doing psexec to srv works OK, whereas to vm failes with Access Denied. srv: C:\Windows\system32>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : srv Primary Dns Suffix . . . . . . . : shunra.net Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : shunra.net Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Broadcom BCM5709C NetXtreme II GigE (NDIS VBD Client) Physical Address. . . . . . . . . : E4-1F-13-6D-F3-00 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 172.30.6.9(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.248.0 Default Gateway . . . . . . . . . : 172.30.0.254 DNS Servers . . . . . . . . . . . : 172.30.1.1 172.30.1.2 NetBIOS over Tcpip. . . . . . . . : Enabled C:\Windows\system32>ping vm Pinging vm.shunra.net [172.30.2.60] with 32 bytes of data: Reply from 172.30.2.60: bytes=32 time=1ms TTL=128 Reply from 172.30.2.60: bytes=32 time=4ms TTL=128 Reply from 172.30.2.60: bytes=32 time<1ms TTL=128 Reply from 172.30.2.60: bytes=32 time<1ms TTL=128 Ping statistics for 172.30.2.60: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 4ms, Average = 1ms C:\Windows\system32> vm: C:\>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : vm Primary Dns Suffix . . . . . . . : shunra.net Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : shunra.net shunranet Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : shunranet Description . . . . . . . . . . . : VMware Accelerated AMD PCNet Adapter Physical Address. . . . . . . . . : 00-0C-29-8F-A0-0B Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 172.30.2.60 Subnet Mask . . . . . . . . . . . : 255.255.248.0 Default Gateway . . . . . . . . . : 172.30.0.254 DHCP Server . . . . . . . . . . . : 172.30.1.1 DNS Servers . . . . . . . . . . . : 172.30.1.1 172.30.1.2 Lease Obtained. . . . . . . . . . : Tuesday, October 25, 2011 18:16:34 Lease Expires . . . . . . . . . . : Wednesday, November 02, 2011 18:16:34 C:\>ping srv Pinging srv.shunra.net [172.30.6.9] with 32 bytes of data: Reply from 172.30.6.9: bytes=32 time=1ms TTL=128 Reply from 172.30.6.9: bytes=32 time<1ms TTL=128 Reply from 172.30.6.9: bytes=32 time<1ms TTL=128 Reply from 172.30.6.9: bytes=32 time<1ms TTL=128 Ping statistics for 172.30.6.9: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 1ms, Average = 0ms C:\> vm-host (the host machine of the vm): C:\>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : vm-host Primary Dns Suffix . . . . . . . : shunra.net Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : shunra.net Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC (NDIS 6.20) Physical Address. . . . . . . . . : 6C-F0-49-E7-E9-30 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::f59d:7f6e:1510:6f%10(Preferred) IPv4 Address. . . . . . . . . . . : 172.30.6.7(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.248.0 Default Gateway . . . . . . . . . : 172.30.0.254 DHCPv6 IAID . . . . . . . . . . . : 242020425 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-13-CC-39-80-6C-F0-49-E7-E9-30 DNS Servers . . . . . . . . . . . : 172.30.1.1 194.90.1.5 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter VMware Network Adapter VMnet1: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet1 Physical Address. . . . . . . . . : 00-50-56-C0-00-01 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::cd92:38c0:9a6d:c008%16(Preferred) Autoconfiguration IPv4 Address. . : 169.254.192.8(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DHCPv6 IAID . . . . . . . . . . . : 352342102 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-13-CC-39-80-6C-F0-49-E7-E9-30 DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 NetBIOS over Tcpip. . . . . . . . : Enabled Ethernet adapter VMware Network Adapter VMnet8: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : VMware Virtual Ethernet Adapter for VMnet8 Physical Address. . . . . . . . . : 00-50-56-C0-00-08 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::edb9:b78c:a504:593b%17(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.5.1(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : DHCPv6 IAID . . . . . . . . . . . : 369119318 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-13-CC-39-80-6C-F0-49-E7-E9-30 DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 NetBIOS over Tcpip. . . . . . . . : Enabled C:\>ping srv Pinging srv.shunra.net [172.30.6.9] with 32 bytes of data: Reply from 172.30.6.9: bytes=32 time<1ms TTL=128 Reply from 172.30.6.9: bytes=32 time<1ms TTL=128 Reply from 172.30.6.9: bytes=32 time<1ms TTL=128 Reply from 172.30.6.9: bytes=32 time<1ms TTL=128 Ping statistics for 172.30.6.9: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms C:\>ping vm Pinging vm.shunra.net [172.30.2.60] with 32 bytes of data: Reply from 172.30.2.60: bytes=32 time<1ms TTL=128 Reply from 172.30.2.60: bytes=32 time<1ms TTL=128 Reply from 172.30.2.60: bytes=32 time<1ms TTL=128 Reply from 172.30.2.60: bytes=32 time<1ms TTL=128 Ping statistics for 172.30.2.60: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms C:\> EDIT3 I have just checked - the vm-host is able to ssh to the vm machine! I still do not know how to leverage this discovery to solve the problem.

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• XFS disk becomes unavailable after a while

  - by Guard

  Ubuntu 12.04 (but the same was on 11.10 before upgrading) WD MyBook, 2TB, no RAID (or RAID0, not completely sure, anyway no mirroring, both 1TB disks are in use, mounted as a single device). Formatted to XFS, normally used for big movie files. Connected to Firewire 800. At some point the LED started going up and down as when constantly reading/writing. The device gives access error. When unplugged (cable, then holding the power button for a while, then unplugging the power) and re-connected becomes available. xfs_check with no results. xfs_repair did something, but looks like didn't fix any error. Then after a massive read (checking 1.5GB torrent file for integrity) becomes unavailable again. Any ideas what's wrong? Drives? Cables? Motherboard? OS? UPD: not sure how relevant this is, but here are dmesg output [14380.632816] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled [14380.633356] SGI XFS Quota Management subsystem [14421.812220] firewire_core: phy config: card 0, new root=ffc1, gap_count=5 [14441.890596] firewire_core: phy config: card 0, new root=ffc1, gap_count=5 [14441.896858] firewire_core: phy config: card 0, new root=ffc1, gap_count=5 [14453.895347] firewire_core: created device fw1: GUID 0090a99500a35518, S400, 9 config ROM retries [14453.904818] scsi6 : SBP-2 IEEE-1394 [14453.905014] scsi7 : SBP-2 IEEE-1394 [14454.139993] firewire_sbp2: fw1.0: logged in to LUN 0000 (0 retries) [14454.158769] scsi 6:0:0:0: Direct-Access WD My Book 1015 PQ: 0 ANSI: 4 [14454.159251] sd 6:0:0:0: Attached scsi generic sg3 type 0 [14454.162391] firewire_sbp2: fw1.1: logged in to LUN 0001 (0 retries) [14454.167453] sd 6:0:0:0: [sdc] 3907017568 512-byte logical blocks: (2.00 TB/1.81 TiB) [14454.178822] sd 6:0:0:0: [sdc] Write Protect is off [14454.178826] sd 6:0:0:0: [sdc] Mode Sense: 10 00 00 00 [14454.186830] scsi 7:0:0:1: Enclosure WD My Book Device 1015 PQ: 0 ANSI: 4 [14454.186995] scsi 7:0:0:1: Attached scsi generic sg4 type 13 [14454.190078] sd 6:0:0:0: [sdc] Cache data unavailable [14454.190087] sd 6:0:0:0: [sdc] Assuming drive cache: write through [14454.202176] sd 6:0:0:0: [sdc] Cache data unavailable [14454.202185] sd 6:0:0:0: [sdc] Assuming drive cache: write through [14454.239940] sdc: [mac] sdc1 sdc2 sdc3 sdc4 [14454.271262] sd 6:0:0:0: [sdc] Cache data unavailable [14454.271270] sd 6:0:0:0: [sdc] Assuming drive cache: write through [14454.271354] sd 6:0:0:0: [sdc] Attached SCSI disk [14454.272149] ses 7:0:0:1: Attached Enclosure device [14606.090024] XFS (sdc3): Mounting Filesystem [14612.048343] XFS (sdc3): Starting recovery (logdev: internal) [14620.697636] XFS (sdc3): Ending recovery (logdev: internal) [14748.120957] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx [14748.120963] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO [14752.568382] uhci_hcd 0000:00:1a.0: PCI INT A disabled [14752.568579] uhci_hcd 0000:00:1a.1: PCI INT B disabled [14752.568738] ehci_hcd 0000:00:1a.7: PCI INT C disabled [14752.568779] ehci_hcd 0000:00:1a.7: PME# enabled [14752.584526] uhci_hcd 0000:00:1d.1: PCI INT B disabled [14752.584689] uhci_hcd 0000:00:1d.2: PCI INT C disabled [14752.680079] ehci_hcd 0000:00:1a.7: BAR 0: set to [mem 0xe4641000-0xe46413ff] (PCI address [0xe4641000-0xe46413ff]) [14752.680104] ehci_hcd 0000:00:1a.7: restoring config space at offset 0xf (was 0x300, writing 0x30b) [14752.680136] ehci_hcd 0000:00:1a.7: restoring config space at offset 0x1 (was 0x2900000, writing 0x2900002) [14752.680170] ehci_hcd 0000:00:1a.7: PME# disabled [14752.680182] ehci_hcd 0000:00:1a.7: PCI INT C -> GSI 18 (level, low) -> IRQ 18 [14752.680190] ehci_hcd 0000:00:1a.7: setting latency timer to 64 [14752.710334] uhci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [14752.710342] uhci_hcd 0000:00:1a.0: setting latency timer to 64 [14752.749186] uhci_hcd 0000:00:1a.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17 [14752.749194] uhci_hcd 0000:00:1a.1: setting latency timer to 64 [14752.790231] uhci_hcd 0000:00:1d.1: PCI INT B -> GSI 22 (level, low) -> IRQ 22 [14752.790239] uhci_hcd 0000:00:1d.1: setting latency timer to 64 [14752.829170] uhci_hcd 0000:00:1d.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18 [14752.829178] uhci_hcd 0000:00:1d.2: setting latency timer to 64

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• Wear and tear on server hard drive from filesystem polling by PHP script

  - by jackie

  So I'm working on a discussion platform, and various clients will visit http://host/thread.php, which will render the discussion thread to date in addition to a form to submit a new post. When a new post is submitted, I would like all of the other clients with browser windows open to have it appear in near-real-time. One of the constraints of my script is that it may not use a DBMS and it must stay in the filesystem. Additionally, I can't use any PECL/PEAR extensions like inotify or anything like that for IPC. The flow will look like this: Client A requests thread.php and the thread is so far empty, but nonetheless it opens a Server-Side Event at eventPusher.php. Client B does the same. Client A fills out a post in the form and and submits (POSTs) it to subHandler.php. ??? (subHandler stores the new submission into the main thread storefile which gets read from when a fresh, new client requests thread.php, in addition to somehow signalling to the continually-running eventPusher event-source that a new comment was posted and that it should echo the event-json to the client. How, exactly, it will send this signal I'm yet unsure of, but there are a few options that I've thought of -- this is the crux of the question, so see below for more clarification) eventPusher.php happily pushes the new event to the client and it shows up soon after it was originally submitted on all clients who have the page open's screens. Now for the #4 missing-link mystery-step, I see a few problems. I mean, either way, eventPusher is gonna be doing a while loop of some sort -- it's gonna be polling something, I think that much is clear. (If that's a bad assumption please do let me know.) Now, the simplest way would be subHandler gets invoked on the form submission, writes it to the main store in addition to newComments.xml, then exits without doing anything else. Then eventPusher checks in newComments.xml every X seconds (by the way, what would be a reasonable time interval here?) and if it finds something then it emits an event to the client. Now, my fear with this is that the server's hard drive will have to constantly start spinning up. Maybe this isn't the case, perhaps it would just get cached in RAM and the linux kernel would take care of this transparently such that filesystem access doesn't actually engage the device because the kernel knows that that particular file hasn't changed since last read. * idea #2: I have no idea how to go about this, but perhaps there is a variable scope that gets stored in general RAM on the system which can be read by any process. Like if we mega-exported a bash variable so that $new_post is normally false but it gets toggled to true by subHandler, and then back to flase once it's pushed to the client. I doubt there's such a variable scope in PHP directly, but I struggle with the concept of variable scope, I just can't seem to understand it no matter what I read on it. * idea #3: eventPusher queries ps in its whileloop for another instance of itself. If there's not another eventPusher active then it's highly unlikely that new comments will be getting submitted. It's okay if this only works =90% of the time, it doesn't need to be completely foolproof. * idea #4: eventPusher queries DMESG to see if that file's been written to recently. So to sum everything up, I need to have inter-php-script-communication in near-real-time that will work on a standard mod_php shared hosting setup without any elevated privileges, PHP addon modules, or other system adjustments that can't be done from the PHP script itself at runtime. With*out* spinning up the drive more than a few times. No SQL servers either. Apologies if my english isn't the best, I'm still trying to improve on it.

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• Duplicate GET request from multiple IPs - can anyone explain this?

  - by dwq

  We've seen a pattern in our webserver access logs which we're having problem explaining. A GET request appears in the access log which is a legitimate, but private, url as part of normal e-commerce website use (by private, we mean there is a unique key in a url form variable generated specifically for that customer session). Then a few seconds later we get hit with an identical request maybe 10-15 times within the space of a second. The duplicate requests are all from different IP addresses. The UserAgent for the duplicates are all the same (but different from the original request). The reverse DNS lookup on the IPs for all the duplicates requests resolve to the same large hosting company. Can anyone think of a scenario what would explain this? EDIT 1 Here's an example that's probably anonymised beyond being any actual use, but it might give an idea of the sort of pattern we're seeing (it's from a search query as they sometimes get duplicated too): xx.xx.xx.xx - - [21/Jun/2013:21:42:57 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "http://www.ourdomain.com/index.html" "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)" xx.xx.xx.xx - - [21/Jun/2013:21:43:03 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.91 Safari/534.30" xx.xx.xx.xx - - [21/Jun/2013:21:43:03 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.91 Safari/534.30" xx.xx.xx.xx - - [21/Jun/2013:21:43:04 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.91 Safari/534.30" xx.xx.xx.xx - - [21/Jun/2013:21:43:04 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.91 Safari/534.30" xx.xx.xx.xx - - [21/Jun/2013:21:43:04 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.91 Safari/534.30" xx.xx.xx.xx - - [21/Jun/2013:21:43:04 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.91 Safari/534.30" xx.xx.xx.xx - - [21/Jun/2013:21:43:04 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.91 Safari/534.30" xx.xx.xx.xx - - [21/Jun/2013:21:43:04 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.91 Safari/534.30" xx.xx.xx.xx - - [21/Jun/2013:21:43:04 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.91 Safari/534.30" xx.xx.xx.xx - - [21/Jun/2013:21:43:04 +0100] "GET /search.html?search=widget&Submit=Search HTTP/1.0" 200 5475 "" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_7) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.91 Safari/534.30" UPDATE 2 Sometimes it is part of a checkout flow that's duplicated to I'd think twitter is unlikely.

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• Server 2008 Task Scheduler Mapped Drive Access C#

  - by user219313

  I'm trying do get Server 2008's Task Scheduler to run a C# console app which backs up data to a mapped backup drive somewhere on FastHosts network. I've written a test app which simply does this Directory.CreateDirectory("Z:\" + DateTime.Now.Ticks.ToString()); i.e. just creates a directory on the root of this Z drive. This works fine when I just run the .exe but when I schedule it in Task Scheduler it says the task has completed with return code 3762507597 - I can't find any info on what this means. I'm running the task with the highest Admin privelages as far as I can see.

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• MSDTC attempts to enlist client machine in a distributed transaction

  - by Ken

  Hi there We're seeing the following intermittent warning logged by MSDTC: A caller has attempted to propagate a transaction to a remote system, but MSDTC network DTC access is currently disabled on machine 'X'. Please review the MS DTC configuration settings. However, MSDTC is disabled on machine X by design - it's a client machine, and has no business being enlisted in the transaction! Several windows service endpoints hosting WCF services over TCP Single SQL Server 2005 instance beneath Linq to Sql Remote client receives event callbacks over WCF/TCP The issue is tricky to reproduce - usually following restart of services. We suspect a callback to the client machine is occurring within the context of a transaction. Just wondering if anyone has seen similar issues?? Ken

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• iPhone and HTML5 Cache Manifest

  - by Jamey McElveen

  I am trying to build an iPhone web application using ASP.NET. The page is dynamically rendered once for each visitor. At this point the page can be bookmarked and it will never change again for that visitor. For this reason it should be cached locally from that point on so the application will run if referenced from the bookmark even if no network connection is available. No matter what I try the phone continues to request the page from the server forcing a re-render or it fails if the phone is offline. Louis Gerbarg suggested in this post that I use HTML5 Cache Manifest to get this working however following the w3.org docs does not appear to work for the iPhone. Does anyone have a good example where application cache is working?

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• How to do RLE (run length encoding) in C# on a byte array?

  - by CuriousCoder

  I am trying to XOR two bitmap files (their byte arrays) to produce a byte array that can be used to change image A into image B or vice versa. I am sending this over the network so I would like to do some basic compression before this happens. Is there a way to do RLE (run length encoding) in C# (using a built-in, or fast reliable 3rd party library) on a byte array for this purpose? Notes: If you are going to suggest an alternative to my approach please keep in mind that the decompression and transformation on the remote machine has to be as quick and efficient as possible.

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• CodePlex Daily Summary for Saturday, March 13, 2010

  CodePlex Daily Summary for Saturday, March 13, 2010New Projects[Experiment] vczh DBUI: EXPERIMENT. Auto UI adaptor for a specified data base[SAMPLE PROJECT] Branch and Patch with GIT: I'll paste more here later...BlogPress: This web application provides a content management system. Coot: Facebook Photos Screensaver.DotNetNuke® JDMenu: dnnJDMenu makes it easy to use the open source JDMenu component in your DotNetNuke skin.DotNetNuke® RadRotator: dnnRadRotator makes it easy to add telerik RadRotator functionality to your site or custom module. Licensing permits anyone to use the components ...DotNetNuke® RadTabStrip: DNNRadTabStrip makes it easy to add telerik RadTabStrip functionality to your module or skin. Licensing permits anyone to use the components (incl...DotNetNuke® RadTreeView: DNNRadTreeView makes it easy to add telerik RadTreeView functionality to your module or skin. Licensing permits anyone to use the components (incl...DotNetNuke® Skin Garden: A DotNetNuke Design Challenge skin package submitted to the "Out of the box" category by Mark Allan of DnnGarden. Concise and semantic HTML 5 stru...ElmasFC: Elmas Facebook CheckerFront Callback Protocol: Front Callback Protocol make it easier for developers to create a network application in the .Net Language. It provide the flexibility of using TCP...Glass UI: A Windows Forms Control Library built specifically for Aero Glass. This will consist of existing controls, modified to render on glass, as well as ...Guitarist Tools: Some tools for guitarists.HomeUX: HomeUX is home control software featuring a Silverlight-based touch screen user interface.Homework Helper: Homework Helper help students to train simpler homework like "What's the name of the capital of France?" - Question - Answear based. It's made i...IGNOU Mini Project Allocation: A mini project allocation system.Images Compiler: Images Compiler is pretty small wpf application for users who want to resize, rename, disable colors... for too much images in very short time. It...InstitutionManagementSystem: Institution Management System prototypeManagedCv: ManagedCv is the library for C#/VB/ to use the OpenCV librarymanagement joint ownership: Application pour la gestion des actions réalisées au sein d’une copropriété. Application for management actions within a joint ownershipMapWindow6: MapWindow 6.0 is an open source geographic information system (GIS) and library of geospatial software development tools for .NET, written in C#. T...Morris Auto: Morris Auto is a social application build templateMouse control with finger detection: The aim of this project is to design an application for recognition of the movement of a finger through a webcam and then control the mouse. The pr...ORAYLIS BI.Quality: ORAYLIS BI.Quality makes it easier to develop BI Solutions in an agile environment. It adapts Unit Tests to BI Development. Propositional Framework: Different sales propositions are presented to the user using data collected from marketing intelligence, browser history or user behaviour as they ...ServStop: ServStop is a .NET application that makes it easy to stop several system services at once. Now you don't have to change startup types or stop them ...shatkotha web portal: source code of web portal shatkothaSurvey and Registration tools: Two Silverlight tools for add Survey and Registration in your websiteTable Storage Backup & Restore for Windows Azure: Allows various backup & restore options for Windows Azure Table Storage accounts: - Backup from one storage account to another - Backup a storag...Topsy Lib: This project provides wrapper methods to call Topsy's web services from C#.twNowplaying: twNowplaying is a small and handy utility that allows you to tweet your currently playing track from Spotify to Twitter. Followed by the #twNowplay...XOM: XOM: Xml Object Mapper Automatically populate your objects with data from XML via an XML map. Never do this again: if(e.GetElementsByTagName("us...YS Utils: The library contains set of useful classes which may solve common tasks for different applications.ZabViewer: CS ProjectNew ReleasesAppFabric Caching Admin Tool: AppFabric Caching Admin Tool (0.8): System Requirements:.NET 4.0 RC AppFabric Caching Beta2 Test On:Win 7 (64x)ASP.Net Routing Configuration: mal.Web.Routing v0.9.2.0: mal.Web.Routing v0.9.2.0DotNetNuke IM Module of Facebook Like Messenger: DNN IM Module of Facebook Like Messenger: Empower DNN Website with a 1-to-1 Chat Solution named Free Facebook Messenger Style Web Chat Bar of 123 Web Messenger. 1. If you need to use the c...DotNetNuke® Form and List (formerly User Defined Table): 05.01.02: Form and List 05.01.02 (Release Candidate 2)5.1.2 will be the next stabilzation release. Major Highlights fixed Cancel action in a form, it don't ...DotNetNuke® JDMenu: DNN jdMenu 1.0.0: dnnJDMenu makes it easy to use the open source JDMenu component in your DotNetNuke skin. Many thanks to Jonathan Sharp of Outwest Media for creati...DotNetNuke® RadTabStrip: DNNRadTabstrip 1.0.0: DNNRadTabStrip makes it easy to add telerik RadTabStrip functionality to your module or skin. Licensing permits anyone to use the components (inclu...DotNetNuke® RadTreeView: DNNRadTreeView 1.0.0: DNNRadTreeView makes it easy to create skins which use the Telerik RadTreeview functionality. Licensing permits anyone (including designers) to use...DotNetNuke® Skin Garden: Garden Package 1.0.0: A DotNetNuke Design Challenge skin package submitted to the "Out of the box" category by Mark Allan of DnnGarden. Concise and semantic HTML 5 struc...ElmasFC: Elmas FC: This porgram is checking your facebook account automaticly.Free DotNetNuke IM of 123 Web Messenger -- Web-based Friend List: Free Download DNN IM Module and Source Code: 123 Web Messenger offers free DotNetNuke Instant Messaging to help you embed a IM Software into DNN Website by integrating 123 Web Messenger with D...Free Silverlight & WPF Chart Control - Visifire: Visifire SL and WPF Charts 3.0.4 Released: Hi, Today we have released the final version of Visifire v3.0.4 which contains the following major features: * Zooming * Step Line chart ...Home Access Plus+: v3.1.0.0: Version 3.1.0.0 Release Problem with this release, get Version 3.1.1.1 Change Log: Fixed ampersand issue Added Unzip Features Added Help Desk ...Home Access Plus+: v3.1.1.1: Version 3.1.1.1 Release Change Log: Fixed the Help Desk File Changes: ~/App_Data/Tickets.xml ~/bin/CHS Extranet.dll ~/bin/CHS Extranet.pdbHomework Helper: Homework Helper 1.0: The first release of Homework Helper. It got basic functionality. Check the Documentation or press F1 while using the program.Homework Helper: Homework Helper v1.0: This is the latest version of Homework Helper. Just a few updates since the latest one (a couple of minutes ago). Now it saves your settings! Instr...IBCSharp: IBCSharp 1.02: What IBCSharp 1.02.zip unzips to: http://i39.tinypic.com/28hz8m1.png Note: The above solution has MSTest, Typemock Isolator, and Microsoft CHESS c...InfoService: InfoService v1.5 RC 1: InfoService Release Canidate Please note this is a RC. It should be stable, but i can't guarantee that! So use it on your own risk. Please read Pl...IntX: IntX 0.9.3.3: Fixed issue #7100IronRuby: 1.0 RC3: The IronRuby team is pleased to announce version 1.0 RC3! As IronRuby approaches the final 1.0, these RCs will contain crucial bug fixes and enhanc...MAISGestão: LayerDiagram (pdf): This is the final version of the layer diagramMapWindow6: MapWindow 6.0 msi (March 12): After some significant trouble with svn, this site represents a test of using Mercurial for our version control. Hopefully the choice of this new ...MSBuild Mercurial Tasks: 0.2.0 Beta: This release realises the Scenario 2 and provides two MSBuild tasks: HgCommit and HgPush. This task allows to create a new changeset in the current...NLog - Advanced .NET Logging: NLog 2.0 preview 1: This is very experimental first build of NLog from 2.0 branch is available for download. It’s not alpha, beta or even gamma, just a preview of upco...Open NFe: Fonte DANFE v1.9.5: Código-fonte para a versão 1.9.5 do DANFEOpiConsole (XNA): OpiConsole 0.3: OpiConsole 0.3 OpiConsole includes: * PC & Xbox support. * Default commands (cvar, quit etc.) * Ability to add custom commands. *...ORAYLIS BI.Quality: Release 1.0.0: Release 1.0.0Pcap.Net: Pcap.Net 0.5.0 (38141): Pcap.Net - March 2010 Release Pcap.Net is a .NET wrapper for WinPcap written in C++/CLI and C#. It Features almost all WinPcap features and include...PhysX.Net: PhysX.Net 0.12.0.0 Beta 1: This is beta release of 0.12.0.0 for people to test and provide feedback on. It targets 2.8.3.21 of PhysXPólya: Pólya 2010 03 13 alpha: Pólya is a collection of generic data structures; as generic as C#/.Net allows them to be. In this first release the focus has been on some fundam...Prolog.NET: Prolog.NET 1.0 Beta 1.3: Installer includes: primary Prolog.NET assembly Prolog.NET Workbench Prolog.NET Scheduler sample application PrologTest console applicatio...Propositional Framework: USP: The initial code drop was based on the Autocomplete demo and the neural network approach used by Jeff Heaton (@ http://www.heatonresearch.com/) - e...Protocol Transition with BizTalk: Source: Stable buildRoTwee: RoTwee (7.1.0.0): Now picture of your friend is shown in RoTwee. Place mouse cursor to the tweet !ServStop: 0.5.0.0: Initial Release Contents of ServStop0500.zip ServStop.exe 0.5.0.0 Initial Release. 32,768 bytes. Other files None. Source code available on "...SkeinLibManaged: Release 1.0.0.0 (Beta): This is the compiled DLL with XML documentation, so there should be plenty of context sensitive help and Intellisense. This is the Release version...sPWadmin: pwAdmin v0.9a: Added: LiveChat Plugin Shows the latest 150 chat messages from "/Your PW Server/logservice/logs/world2.chat" Refresh chat every 5 seconds Allow...sPWadmin: pwAdmin v0.9b: Some minor fixes to style, layout & different browser support Merged the forms in server configuration tab to a single form that can now save mul...Topsy Lib: Initial release: Initial Debug and Release versions.twNowplaying: twNowplaying: Press the Twitter icon to get started, don't forget to submit bugs to the issue tracker. What's new This release has some minor UI fixes.twNowplaying: twNowplaying Alpha 1.0: Press the Twitter icon to get started, don't forget to submit bugs to the issue tracker. Thank you , and enjoy! =)VCC: Latest build, v2.1.30312.0: Automatic drop of latest buildWPF Dialogs: Version 0.1.3: The FolderBrowseDialog / FolderBrowseDialog - Deutsch was improved and extended.XOM: XOM 0.1A: Just a release of the code I have so far. In order to get your objects to work, you need to create an XML file to define your objects. Here is a ...Xpress - ASP.NET MVC 个人博客程序: xpress2.1.1.0312.beta: 最新beta版，注意：此版本和2.1.0不兼容 更改内容： 将主题文件发放在 Views 文件夹下 主题文件支持强类型Model 主题资源文件放在Resouces目录下YS Utils: V 1.0.0.0: This is first release. The YSUtils library contains first set of classes. ZIP files contains documentation.Most Popular ProjectsMetaSharpWBFS ManagerRawrAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitWindows Presentation Foundation (WPF)ASP.NET Ajax LibraryASP.NETMicrosoft SQL Server Community & SamplesMost Active ProjectsRawrN2 CMSBlogEngine.NETFasterflect - A Fast and Simple Reflection APIpatterns & practices – Enterprise LibraryFarseer Physics EngineSharePoint Team-MailerCaliburn: An Application Framework for WPF and SilverlightCalcium: A modular application toolset leveraging PrismjQuery Library for SharePoint Web Services

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• vir-install virtual machine hang on Probbing EDD

  - by user2256235

  I'm using vir-stall virtual machine, and my command is virt-install --name=gust --vcpus=4 --ram=8192 --network bridge:br0 --cdrom=/opt/rhel-server-6.2-x86_64-dvd.iso --disk path=/opt/as1/as1.img,size=50 --accelerate After running the command, it hangs on probing EDD, - Press the <ENTER> key to begin the installation process. +----------------------------------------------------------+ | Welcome to Red Hat Enterprise Linux 6.2! | |----------------------------------------------------------| | Install or upgrade an existing system | | Install system with basic video driver | | Rescue installed system | | Boot from local drive | | Memory test | | | | | | | | | | | | | | | +----------------------------------------------------------+ Press [Tab] to edit options Automatic boot in 57 seconds... Loading vmlinuz...... Loading initrd.img...............................ready. Probing EDD (edd=off to disable)... ok ÿ Previously, I wait a long time, it seems no marching. After I press ctrl + ] and stop it. I find it was running using virsh list, but I cannot console it using virsh concole gust. Any problem and how should I do. Many Thanks

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• QNetworkAccessManager timeout.

  - by Umesha MS

  Hi, Presently I am working on an application which sends and receives file from remote server. To do network operation I am using QNetworkAccessManager. To upload a file I am using QNetworkAccessManager::put() and to download I am using QNetworkAccessManager::get() functions. While uploading a file I will initialize a timer with time out of 15 sec. if I upload a small file it will complete it within the time out period. But if I try to upload a file which is very large in size get time out. So how to decide time out for uploading of large file. Same in case of downloading of a large file. I get file in chunk by chunk in readyread() signal. Here also if I download a large file I get time out. So how to decide time out for uploading of large file.

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• How to use SharpSVN in ASP.NET?

  - by Bryan

  Trying to use use SharpSVN in an ASP.NET app. So far, it's been nothing but trouble. First, I kept getting permission errors on "lock" files (that don't exist), even though NETWORK SERVICE has full permissions on the directories. Finally in frustration I just granted Everyone full control. Now I get a new error: OPTIONS of 'https://server/svn/repo': authorization failed: Could not authenticate to server: rejected Basic challenge (https://server) This happens whether I have the DefaultCredentials set below or not: using (SvnClient client = new SvnClient()) { //client.Authentication.DefaultCredentials = new System.Net.NetworkCredential("user", "password"); client.LoadConfiguration(@"C:\users\myuser\AppData\Roaming\Subversion"); SvnUpdateResult result; client.Update(workingdir, out result); } Any clues? I wish there was SOME documentation with this library, as it seems so useful.

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