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• Schedule a batch file with parameters containing spaces

  - by Danilo Brambilla

  Hi, I need to schedule a task in Windows Server 2003 that executes this script that deletes files older that n days in the specified folder. The script needs 3 parameters: %1 path to folder where files need to be deleted %2 file names (es. *.log) %3 number of days @echo off forfiles -p %1 -s -m %2 -d -%3 -c "cmd /c del /q @path" The script works fine if the first parameter has no spaces inside. This is an example of parameters that work: "C:\Program Files\SCRIPT\DeleteFilesOlderThanXDays.cmd" N:\FOLDER\FOLDER *.zip 60 This is an example that does not work: "C:\Program Files\SCRIPT\DeleteFilesOlderThanXDays.cmd" N:\Program Files\LOG *.zip 60 This does not work too: "C:\Program Files\SCRIPT\DeleteFilesOlderThanXDays.cmd" "N:\Program Files\LOG" *.zip 60 I think it would be a quotes problem but I can't figure out the solution. I'd like not to insert values directly into the script if possible Thank you all for help

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• Is there a plugin for [Path] Finder to browse zip-archives as folders?

  - by Andrei

  Hi, I am migrating from Windows to OS X and looking for a good way to browse zip, rar etc. archives. Ideally, I need a plugin for Finder which will allow me to open archives as folders. Is there one, or any other suitable solution? Preferably free Update As I understand, most of Mac users are using Path Finder app for file management. It is an awesome program, however surprisingly it also doesn't have such functionality. I guess, the problem is in the way of thinking – my Windows-thinking is not applicable to Mac. Here are some threads for other former Windows users to push Cocoatech in a right direction: http://forum.cocoatech.com/showthread.php?t=2883 http://forum.cocoatech.com/showthread.php?t=5167

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• 250k connections for comet with node.js

  - by Nenad

  How to implement node.js to be able to handle 250k connections as comet server (client side we use socket.io)? Would the use of nginx as proxy/loadbalancer be the right solution? Or will HA-Proxy be the better way? Has anyone real world experience with 100k+ connections and can share his setup? Would a setup like this be the right one (Quad core CPU per server - start 4 Instances of node.js per Server?): nginx (as proxy / load balancing server) / | \ / | \ / | \ / | \ node server #1 node server #2 node server #3 4 instances 4 instances 4 instances

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• Moving domain currently on Google Apps to my own machines

  - by mag

  I own a domain which currently uses Google Apps (it was free back then). Due to recent events I have decided I want to move everything right where I can control the data, which basically means I have the idea of either using a dyndns solution and have at home my own mail server or, better, use an hosted machine to retrieve the mail and the move it via mua to a local machine. My problem is that I know basically next to nothing about DNS and stuff, while I have installed mail servers before. :) [I simply never had the need to work with DNS...] I'd really appreciate if someone could point me in the right direction: what do I need to do to: terminate the Google Apps management of the domain setup dns entries to that mail goes to the new server instead of Google Apps Additionally: if I decide to go the "hosted route" and I put up a machine via a supercheap hosting seller (say, the cheapest OVH one is a few euros a month), how can I tell the world that that machine is the mail server? Of course I would be wise to do a full backup of the mail on Google Apps, and that's easy enough to do by imap (right?).

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• How to handle sorting of complex objects?

  - by AedonEtLIRA

  How would one sort a list of objects that have more than one sortable element? Suppose you have a simple object Car and car is a defined as such: class Car { public String make; public String model; public int year; public String color; // ... No methods, just a structure / container } I designed a simple framework that would allow for multiple SortOptions to be provided to a Sorter that would then sort the list. interface ISorter<T> { List<T> sort(List<T> items); void addSortOption(ISortOption<T> option); ISortOption<T>[] getSortOptions(); void setSortOption(ISortOption<T> option); } interface ISortOption<T> { String getLabel(); int compare(T t1, T t2); } Example use class SimpleStringSorter extends MergeSorter<String> { { addSorter(new AlphaSorter()); } private static final class AlphaSorter implements ISortOption<String> { // ... implementation of alpha compare and get label } } The issue with this solution is that it is not easily expandable. If car was to ever receive a new field, say, currentOwner. I would need to add the field, then track down the sorter class file, implement a new sort option class then recompile the application for redistribution. Is there an easier more expandable/practical way to sort data like this?

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• Insert escaped characters in seq command separator

  - by dhekir

  How do I insert a string containing escaped characters (\n, \t, etc) as separator for the seq command? The standard format includes a newline character: $ seq 3 1 2 3 But if I try to add something plus a newline, the backslash is escaped and a literal "\n" is used instead: $ seq -s "$\n" 3 1\n2\n3 The same happens using simple quotes, no quotes, or other escaped characters: $ seq -s "\t" 3 1\t2\t3 $ seq -s \t 3 1t2t3 This is not the standard behavior for commands such as echo, so I'm a bit confused here... Edit: Ideally, I'd like a somewhat portable solution (that works in tsch as well as bash, for instance), and without resorting to Perl or other languages.

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• How to set up a DNS name server to always resolve to a constant IP address for every request

  - by Andy Higgins

  I am looking for a simple DNS name server set up to always return the same IP address no matter what the request is. The reason for this is we are a domain registrar and when a domain is first registered we need it to have valid name servers (and don't want to have to first create name server records before registering a domain). We will then subsequently change the name server records after the domain has been registered. I assume this is possible to do with bind but was wondering if there might be a simpler solution available using one of the more light weight name servers out there? Any suggestions on how to accomplish this in a simple manner will be appreciated.

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• Mouse(s) double clicks instead of single click (its not the mouse)

  - by Iznogood

  I am aware of this very similar question: But I have tried with 3 different mouses and everyone of them exibit the same behavior. Simple enough, 1 out of 3 times I get a double click when single clicking). I searched the net a lot about this problem and have yet to find a solution. I have tried: 1- switch to another mouse 2- uninstall the mouse drivers + reboot 3- I do not have any special mouse drivers/software like intellisense and logitecs to uninstall. 4- verified that I was not in fact on some setting that says open files with single click. 5- everything is up to date including a antivirus 6- Installed fresh drivers from dell's website It is a dell vostro 260 computer running windows 7 pro 64. edit: added a 6th thing I tried. edit2: tried reinstalling every windows update I could find nothing Boss just said he'd buy me a logitech mouse hoping the drivers will fix my problems. Hopefuly!

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• keyPressed is not working after adding ActionListener to JButton

  - by Yehonatan

  I have a serious problem while trying to build a menu for my game. I've added two JButton to a main JPanel and added an ActionListener for each of them. The main JPanel also contains the game JPanel which have the keyPressed method inside keyController. That's how it looks - Main -       JPanel -         JButton, JButton,         JPanel which contains the game and keyPressed function inside KeyController class which worked fine before I added the ActionListener for JButton. For some reason after I added an ActionListener for each of the button, the game JPanel is not getting any keyPreseed events nor KeyRealesed. Does anyone know the solution for my situation? Thank you very much! Main window - Scanner in = new Scanner(System.in); JFrame f = new JFrame("Square V.S Circles"); f.setUndecorated(true); f.setResizable(false); f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); f.add(new JPanelHandler()); f.pack(); f.setVisible(true); f.setLocationRelativeTo(null); JPanelHandler(main JPanel) - super.setFocusable(true); JButton mybutton = new JButton("Quit"); JButton sayhi = new JButton("Say hi"); sayhi.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { System.out.println("Hi"); } }); mybutton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { System.exit(0); } }); add(mybutton); add(sayhi); add(new Board(2)); Board KeyController(The code inside is working so it's unnecessary to put it here) - private class KeyController extends KeyAdapter { public KeyController() { ..Code } @Override public void keyPressed(KeyEvent e) { ...Code } @Override public void keyReleased(KeyEvent e){ ...Code } }

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• Would form keys reduce the amount of spam we receive?

  - by David Wilkins

  I work for a company that has an online store, and we constantly have to deal with a lot of spam product reviews, and bogus customer accounts. These are all created by automated systems and are more of a nuisance than anything. What I am thinking of (in lieu of captcha, which can be broken) is adding a sort of form key solution to all relevant forms. I know for certain some of the spammers are using XRumer, and I know they seldom request a page before sending us the form data (Is this the definition of CSRF?) so I would think that tying a key to each requested form would at least stem the tide. I also know the spammers are lazy and don't check their work, or they would see that we have never posted a spam review, and they have never gained any revenue from our site. Would this succeed in significantly reducing the volume of spam product reviews and customer account creations we are seeing? EDIT: To clarify what I mean by "Form Keys": I am referring to creating a unique identifier (or "key") that will be used as an invisible, static form field. This key will also be stored either in the database (relative to the user session) or in a cookie variable. When the form's target gets a request, the key must be validated for the form's data to be processed. Those pesky bots won't have the key because they don't load the javascript that generates the form (they just send a blind request to the target) and even if they did load the javascript once, they'd only have one valid key, and I'm not sure they even use cookies.

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• MongoDB: Replicate data in documents vs. “join”

  - by JavierCane

  Disclaimer: This is a question derived from this one. What do you think about the following example of use case? I have a table containing orders. These orders has a lot of related information needed by my current queries (think about the products; the buyer information; the region, country and state of the sale point; and so on) In order to think with a de-normalized approach, I don't have to put identifiers of these related items in my main orders collection. Instead, I have to repeat all the information for each order (ie: I will repeat the buyer's name, surname, etc. for each of its orders). Assuming the previous premise, I'm committing to maintain all the data related to an order without a lot of updates (because if I modify the buyer's name, I'll have to iterate through all orders updating the ones made by the same buyer, and as MongoDB blocks at a document level on updates, I would be blocking the entire order at the update moment). I'll have to replicate all the products' related data? (ie: category, maker and optional attributes like color, size…) What if a new feature is requested and I've to make a lot of queries with the products "as the entry point of the query"? (ie: reports showing the products' sales performance grouping by region, country, or whatever) Is it fair enough to apply the $unwind operation to my orders original collection? (What about the performance?) I should have to do another collection with these queries in mind and replicate again all the products' information (and their orders)? Wouldn't be better to store a product_id in the original orders collection in order to be more tolerable to requirements change? (What about emulating JOINs?) The optimal approach would be a mixed solution with a RDBMS system like MySQL in order to retrieve the complete data? I mean: store products, users, and location identifiers in the orders collection and have queries in MySQL like getAllUsersDataByIds in which I would perform a SELECT * FROM users WHERE user_id IN ( :identifiers_retrieved_from_the_mongodb_query )

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• ntbackup workalike for adhoc full backups in Windows 7 thats free and preferably open source

  - by Justin Dearing

  On windows 2000 and XP machines I used to be able to do the following: ntbackup backup systemstate c: /f e:\backups\machineName\machineName-full+systemstate_200101206.bkf This gave me a full backup of the system that I could use to do a system restore, after doing a barebones OS install. Windows 7 has a great utility for regular backups with alerting and all that stuff. It does not seem to have command line support. I'd like a backup solution for my Windwos 7 systems that has the following features: Is free Is open source (preferebly) Works while the system is booted and leaves the system functional (clonezilla is great for offline backups, and I use that too) Gives me a backup that is suited for a full system restore or partial system restore (ruling out most imaging software even if they could work while the system is booted via some sort of shadow copy voodoo) Can work via the command line Compression would be nice, the ability to pipe output would be better.

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• Pasting into Vista cmd.exe broke, why?

  - by Michel de Ruiter

  I use Windows Vista x64 and regularly use the command line window CMD.EXE. I have enabled QuickEdit Mode (and Insert Mode and AutoComplete), to be able to quickly copy and paste text. Copying (select block, Enter) works fine. Pasting (right click) text also works, as long as it has been copied inside a CMD.EXE window. When I copied the text somewhere else (in an editor, browser or whatever) however, pasting into CMD.EXE does not work! :-( Using the menu to Edit, Paste does not do anything either, so it's not a mouse thing. I also tried elevating CMD.EXE. I can copy/paste freely between CMD.EXE instances of all sorts: elevated/normal, x64/x86... I'm sure it did work on this machine until relatively recently. What could have happened? Some Windows Update perhaps? The problem has been reported by others, but without a solution.

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• How do I make a privileged port non-privileged in Redhat 5?

  - by Jason Thompson

  So I have a RedHat 5 box that I'm wanting to run an application that I wrote that implements SLP. SLP uses port 427 for answering service queries. My understanding is that ports below 1024 are "privileged" and thus cannot be bound to by anyone that's not root. I cannot run this application as root as it is launched via tomcat. One creative solution I really like was simply writing an iptables rule to route the privileged port to a non-privileged. In my proof of concept tests, this works wonderfully. Unfortunately, it would be greatly (and understandably) desired by the powers if my application did not require screwing around with iptables upon installation. So I heard a rumor and cannot find anything to verify this that there was some sort of command or parameter that could be set to make any port I want be non-privileged. Is this true? If so, how is this done? Thanks!

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• Am I programming too slow?

  - by Jonn

  I've only been a year in the industry and I've had some problems making estimates for specific tasks. Before you close this, yes, I've already read this: http://programmers.stackexchange.com/questions/648/how-to-respond-when-you-are-asked-for-an-estimate and that's about the same problem I'm having. But I'm looking for a more specific gauge of experiences, something quantifiable or probably other programmer's average performances which I should aim for and base my estimates. The answers range from weeks, and I was looking more for an answer on the level of a task assigned for a day or so. (Note that this doesn't include submitting for QA or documentations, just the actual development time from writing tests if I used TDD, to making the page, before having it submitted to testing) My current rate right now is as follows (on ASP.NET webforms): Right now, I'm able to develop a simple data entry page with a grid listing (no complex logic, just Creating and Reading) on an already built architecture, given one full day's (8 hours) time. Adding complex functionality, and Update and Delete pages add another full day to the task. If I have to start the page from scratch (no solution, no existing website) it takes me another full day. (Not always) but if I encounter something new or haven't done yet it takes me another full day. Whenever I make an estimate that's longer than the expected I feel that others think that I'm lagging a lot behind everyone else. I'm just concerned as there have been expectations that when it's just one page it should take me no more than a full day. Yes, there definitely is more room for improvement. There always is. I have a lot to learn. But I would like to know if my current rate is way too slow, just average, or average for someone no longer than a year in the industry.

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• In virtualbox, I can't access the dvd drive to install a guest host

  - by user211062

  I have installed a fresh copy of Ubuntu Server 12.04 and VirtualBox 4.3. I have set up a VM called "MediaServer" and tried to start it. I then get the following error: Cannot open host device '/dev/sr0' for readonly access. Check the permissions of that device ('/bin/ls -l /dev/sr0'): Most probably you need to be member of the device group. Make sure that you logout/login after changing the group settings of the current user (VERR_ACCESS_DENIED) I have looked all over the Internet and have been unable to find a solution. Using Webmin, I tried changing the group settings so that my user name was in the "vboxusers" group, but that did not work either. I tried various other changes in group settings and none of them worked. Also, I tried rebooting the server after the changes and that didn't work either. I have been following a guide on how to set up an Ubuntu server from the website "linuxhomeserverguide.com" and when it came to the section where you could finally set up your first virtual machine, I am stumped. I would really appreciate it if someone could help me. Thanks in advance.

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• IIS site not resolved by DNS server

  - by Alexio

  I've a problem with my network. My Config: SVR01 (ws2008r2): DNS server and Domain Server SVR02 (ws2008r2): IIS (v7.5) Domain Clients In SVR02 there are many sites. When I try to connect on one site (such as: demo1.myhomesite.intra) the browser say "Internet Explor can not display the webpage". Well... In this case I found a workaround: unplug and plug the lan cable (or disable and enable wifi) in my client and the site work correctly. But this workaround is not a solution. Please, can you help me??

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• How to keep TightVNC client on Windows XP alive when connected to OS X?

  - by Craig

  I'm using TightVNC on my Windows XP workstations to connect to a remote OS X box (10.5.x) using OS X's VNC support. I've noticed that the TightVNC will become unresponsive after a period of inactivity. Is this a common issue? Restarting TightVNC solves the problem, but can be a bit annoying. Is there a solution to this? I don't suppose copy & paste between the two systems can be made to work?

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• some websites not opening completely

  - by mkk

  Hi everybody, I am using bsnl broadband connection, modem: wa3002g1 os: xp(86x) / vista(64x) A few days back I have changed the modem (don't know the previous modem no) because of some issues. since then I am not able to open most of the websites in firefox, IE6/8, chrome, opera. If i connect with other network like reliance data card, those websites are opening, if i connect bsnl the problem will be same again. I called to customer care many times, but no use. Please help me to find the solution. Thank you in advance.

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• Enabling the Power State Change Beep

  - by digitxp

  I have a Thinkpad T430s. I found on other Thinkpads there's a beep when you plug or unplug the AC cord. While I hear a lot of people say it's annoying it seems like a very useful security feature. However, when I go into the Power Manager the option to beep on plugging/unplugging ("Power State Change Beep") isn't there, even though it's in the help file already. I know it would be easy to rig a software solution to this event, but it would kind of defeat the purpose if it doesn't beep when it's in sleep. Is there a way to get this beep on my laptop?

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• Windows Media Center won't Play MSN Video Player

  - by Chris Spicer

  My install of Windows Media Center won't play MSN Video Player videos. They appear in the main guide, but when I click on them, nothing happens. If I look on the main menu, I don't have any icons for MSN Video player there. People have suggested I try downloading updates, but that makes no difference. I have internet connectivity. My region is set to the UK (which is where I am). If I navigate to the MSN Video Player using Internet Explorer, the videos play fine. The machine is an Acer Revo RL100, running Windows 7 64-bit. Does anyone have a solution for this? Any help would be gratefully received.

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• Route multiple subdomains on one external ip to multiple internal ips

  - by Abenil

  i have several subdomains(git.example.org, build.example.org, etc.), i have a router with an external ip and i have several virtual machines on a host computer with internal ips. Now i want to route git.example.org to internal ip 10.0.2.1 and build.example.org to internal ip 10.0.2.2. How can I do this? I setup in the Router that all traffic on port 80 is comming to my host computer with internal ip 10.0.2.3 and installed Squid on that computer. I added the following lines to the squid.conf file: cache_peer 10.0.2.1 parent 80 0 no-query originserver name=server_1 cache_peer_domain server_1 git.example.org cache_peer 10.0.2.2 parent 80 0 no-query originserver name=server_2 cache_peer_domain server_2 build.example.org But this is not working for me. :( Any help appreciated. Regards Nils Update: Here is the solution for Apache http://serverfault.com/a/273693

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• Why is math taught "backwards"? [closed]

  - by Yorirou

  A friend of mine showed me a pretty practical Java example. It was a riddle. I got excited and quickly solved the problem. After it, he showed me the mathematical explanation of my solution (he proved why is it good), and it was completely clear for me. This seems like natural approach for me: solve problems, and generalize. This is very familiar to me, I do it all the time when I am programming: I write a function. When I have to write a similar function, I generalize the problem, grab the generic parts, and refactor them to a function, and solve the original problems as a specialization of the general function. At the university (or at least where I study), things work backwards. The professors shows just the highest possible level of the solutions ("cryptic" mathematical formulas). My problem is that this is too abstract for me. There is no connection of my previous knowledge (== reality in my sense), so even if I can understand it, I can't really learn it properly. Others are learning these formulas word-by-word, and get good grades, since they can write exactly the same to the test, but this is not an option for me. I am a curious person, I can learn interesting things, but I can't learn just text. My brain is for storing toughts, not strings. There are proofs for the theories, but they are also really hard to understand because of this, and in most of the cases they are omitted. What is the reason for this? I don't understand why is it a good idea to show the really high level of abstraction and then leave the practical connections (or some important ideas / practical motivations) out?

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• Optimal dir strcuture for keeping millions of files on an ext4 system

  - by Alex Flo

  I need to keep millions of files on an ext4 system. I understand that having a structure with multiple subdirectories is the general accepted solution. I wonder what would be the optimal approach in terms of number of dirs/subdirs. For example I tried a structure like 16/16/16/16 (that is, (sub)directories from 1 to 16) and I found that I am able to move 100K files to this structure in 2m50s. When trying to move 100K files to a 8/8/8/8/8/8 structure it took 11 minutes. So the 16/16/16/16 approach seems to be better but I was wondering if anyone has some empirical experience with an even better dir/subdir distribution.

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• Access a PLESK website before propagation?

  - by RCNeil

  My web host uses Plesk and I want to know if there is anyway to access and view a website (with PHP and other processes being functional) without propagation of the domain name? I have found countless forums on this but they are all pretty old (circa 01-04) and involve either tricking your localhost or SSH commands and some even result in terrible security risks. I would like to access a web page directory through a browser and see it's contents while having the PHP processes carry out... before I propagate it's potential domain name. People claim this is pointless but during a site migration why on earth would you not test a site before propagating it? I'm looking for something similar to what cPanel offers i.e. http://IP.ADDRESS./~mydomain.com The only solution I could think of is storing the site in a new directory of an already functional site and then setting up databases and testing the site once it's complete. Once tested and working I should be easily be able to migrate the files to the "new" domain name's root directory and just setup a new databases and then propagate the domain name. I can't believe that Plesk V10+ still does not have a site preview method that includes PHP, JS, and Flash ability.

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