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• Stop duplicate icmp echo replies when bridging to a dummy interface?

  - by mbrownnyc

  I recently configured a bridge br0 with members as eth0 (real if) and dummy0 (dummy.ko if). When I ping this machine, I receive duplicate replies as: # ping SERVERA PING SERVERA.domain.local (192.168.100.115) 56(84) bytes of data. 64 bytes from SERVERA.domain.local (192.168.100.115): icmp_seq=1 ttl=62 time=113 ms 64 bytes from SERVERA.domain.local (192.168.100.115): icmp_seq=1 ttl=62 time=114 ms (DUP!) 64 bytes from SERVERA.domain.local (192.168.100.115): icmp_seq=2 ttl=62 time=113 ms 64 bytes from SERVERA.domain.local (192.168.100.115): icmp_seq=2 ttl=62 time=113 ms (DUP!) Using tcpdump on SERVERA, I was able to see icmp echo replies being sent from eth0 and br0 itself as follows (oddly two echo request packets arrive "from" my Windows box myhost): 23:19:05.324192 IP myhost.domain.local > SERVERA.domain.local: ICMP echo request, id 512, seq 43781, length 40 23:19:05.324212 IP SERVERA.domain.local > myhost.domain.local: ICMP echo reply, id 512, seq 43781, length 40 23:19:05.324217 IP myhost.domain.local > SERVERA.domain.local: ICMP echo request, id 512, seq 43781, length 40 23:19:05.324221 IP SERVERA.domain.local > myhost.domain.local: ICMP echo reply, id 512, seq 43781, length 40 23:19:05.324264 IP SERVERA.domain.local > myhost.domain.local: ICMP echo reply, id 512, seq 43781, length 40 23:19:05.324272 IP SERVERA.domain.local > myhost.domain.local: ICMP echo reply, id 512, seq 43781, length 40 It's worth noting, testing reveals that hosts on the same physical switch do not see DUP icmp echo responses (a host on the same VLAN on another switch does see a dup icmp echo response). I've read that this could be due to the ARP table of a switch, but I can't find any info directly related to bridges, just bonds. I have a feeling my problem lay in the stack on linux, not the switch, but am opened to any suggestions. The system is running centos6/el6 kernel 2.6.32-71.29.1.el6.i686. How do I stop ICMP echo replies from being sent in duplicate when dealing with a bridge interface/bridged interfaces? Thanks, Matt [edit] Quick note: It was recommended in #linux to: [08:53] == mbrownnyc [gateway/web/freenode/] has joined ##linux [08:57] <lkeijser> mbrownnyc: what happens if you set arp_ignore to 1 for the dummy interface? [08:59] <lkeijser> also set arp_announce to 2 for that interface [09:24] <mbrownnyc> lkeijser: I set arp_annouce to 2, arp_ignore to 2 in /etc/sysctl.conf and rebooted the machine... verifying that the bits are set after boot... the problem is still present I did this and came up empty. Same dup problem. I will be moving away from including the dummy interface in the bridge as: [09:31] == mbrownnyc [gateway/web/freenode/] has joined #Netfilter [09:31] <mbrownnyc> Hello all... I'm wondering, is it correct that even with an interface in PROMISC that the kernel will drop /some/ packets before they reach applications? [09:31] <whaffle> What would you make think so? [09:32] <mbrownnyc> I ask because I am receiving ICMP echo replies after configuring a bridge with a dummy interface in order for ipt_netflow to see all packets, only as reported in it's documentation: http://ipt-netflow.git.sourceforge.net/git/gitweb.cgi?p=ipt-netflow/ipt-netflow;a=blob;f=README.promisc [09:32] <mbrownnyc> but I do not know if PROMISC will do the same job [09:33] <mbrownnyc> I was referred here from #linux. any assistance is appreciated [09:33] <whaffle> The following conditions need to be met: PROMISC is enabled (bridges and applications like tcpdump will do this automatically, otherwise they won't function). [09:34] <whaffle> If an interface is part of a bridge, then all packets that enter the bridge should already be visible in the raw table. [09:35] <mbrownnyc> thanks whaffle PROMISC must be set manually for ipt_netflow to function, but [09:36] <whaffle> promisc does not need to be set manually, because the bridge will do it for you. [09:36] <whaffle> When you do not have a bridge, you can easily create one, thereby rendering any kernel patches moot. [09:36] <mbrownnyc> whaffle: I speak without the bridge [09:36] <whaffle> It is perfectly valid to have a "half-bridge" with only a single interface in it. [09:36] <mbrownnyc> whaffle: I am unfamiliar with the raw table, does this mean that PROMISC allows the raw table to be populated with packets the same as if the interface was part of a bridge? [09:37] <whaffle> Promisc mode will cause packets with {a dst MAC address that does not equal the interface's MAC address} to be delivered from the NIC into the kernel nevertheless. [09:37] <mbrownnyc> whaffle: I suppose I mean to clearly ask: what benefit would creating a bridge have over setting an interface PROMISC? [09:38] <mbrownnyc> whaffle: from your last answer I feel that the answer to my question is "none," is this correct? [09:39] <whaffle> Furthermore, the linux kernel itself has a check for {packets with a non-local MAC address}, so that packets that will not enter a bridge will be discarded as well, even in the face of PROMISC. [09:46] <mbrownnyc> whaffle: so, this last bit of information is quite clearly why I would need and want a bridge in my situation [09:46] <mbrownnyc> okay, the ICMP echo reply duplicate issue is likely out of the realm of this channel, but I sincerely appreciate the info on the kernels inner-workings [09:52] <whaffle> mbrownnyc: either the kernel patch, or a bridge with an interface. Since the latter is quicker, yes [09:54] <mbrownnyc> thanks whaffle [edit2] After removing the bridge, and removing the dummy kernel module, I only had a single interface chilling out, lonely. I still received duplicate icmp echo replies... in fact I received a random amount: http://pastebin.com/2LNs0GM8 The same thing doesn't happen on a few other hosts on the same switch, so it has to do with the linux box itself. I'll likely end up rebuilding it next week. Then... you know... this same thing will occur again. [edit3] Guess what? I rebuilt the box, and I'm still receiving duplicate ICMP echo replies. Must be the network infrastructure, although the ARP tables do not contain multiple entries. [edit4] How ridiculous. The machine was a network probe, so I was (ingress and egress) mirroring an uplink port to a node that was the NIC. So, the flow (must have) gone like this: ICMP echo request comes in through the mirrored uplink port. (the real) ICMP echo request is received by the NIC (the mirrored) ICMP echo request is received by the NIC ICMP echo reply is sent for both. I'm ashamed of myself, but now I know. It was suggested on #networking to either isolate the mirrored traffic to an interface that does not have IP enabled, or tag the mirrored packets with dot1q.

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• How to automatically restart RRAS service after OpenVPN

  - by JT

  I have OpenVPN set up on a Windows Server 2003 box using a routed configuration. This allows users to connect and access the work LAN subnet. There are remote hosts/services however that are only accessible when used via the work network. To enable access these, I push routes out to the clients to make sure traffic to these destinations goes across the VPN, and NAT the traffic using RRAS. This all works, except: if I restart the OpenVPN service, network traffic stops working until I restart the RRAS service as well. Is there a good way for me to make the RRAS service start/restart after OpenVPN? Are service dependencies the way to go? Obviously I could write a batch file to do this, but I'd like to make the process as bullet-proof and obvious as I can so it doesn't cause problems for other admins.

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• How to rotate log files when running pyapns and twistd

  - by Henrik

  I use pyapns (Iphone push server) which in turn uses twisted (twistd daemon). twistd daemon produces twistd.log files. It rotates them to twistd.log.1, twistd.log.2 and so on when twistd.log reaches 1MB but it doesn't use logrotate so I guess it's built in. The problem is that this continues forever and that old log files are never deleted. This eventually fills my disk. I've tried to use logrotate or similar to rotate the logs, but then I would need to run logrotate very very often since I need to rotate BEFORE twistd.log reaches 1MB. This could happen within a second for all I know depending on how much log is produced. So how could I logrotate without hacking pyapns/twistd scripts?

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• Skype companywide global contacts list

  - by Martin

  We are a medium sized company based across several sites and with a number of home workers. We have more or less settled on Skype as our defacto method of communication. At the moment the only pain is ensuring that everybody has all the other employees added to their contact list. Can be a real pain when a new employee starts and they have to send details to everyone else and vice versa. Is there a solution that allows us to manage a central contacts list that we can push out to new/existing users?

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• Skype companywide global contacts list

  - by Martin

  We are a medium sized company based across several sites and with a number of home workers. We have more or less settled on Skype as our defacto method of communication. At the moment the only pain is ensuring that everybody has all the other employees added to their contact list. Can be a real pain when a new employee starts and they have to send details to everyone else and vice versa. Is there a solution that allows us to manage a central contacts list that we can push out to new/existing users?

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• shell script fun! performing action on each subdirectory from a given path

  - by pocketfullofcheese

  I am writing a shell script (which I suck at) and I need some help. Its a script that is moving things from git to CVS (not important). The thing is, i a file path: controllers/listbuilder/setup/SubmissionRolesListbuilderHandler.inc.php and I need to be able to do: cvs add controllers; cvs add controllers/listbuilder; cvs add controllers/listbuilder/setup; cvs add controllers/listbuilder/setup/SubmissionRolesListbuilderHandler.inc.php Can someone help me out? The best I've come up with so far is to recursively add ALL files in my working tree, but that seems overly inefficient.

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• Redirect anything within /attachments/ directory up one level but also removing anything after /attachments/

  - by Rich Staats

  WordPress creates an attachment page for any images uploaded through the post editor and "attached" to that post. After migrating a site, those attachment pages no longer exist, and we now have around 1000 links pointed at 404's. So, I was looking to find a way to do a redirect for any url that has /attachement/ in it's string and then push that url back up one level (which happens to be the post page). so for instance: http://mysite.com/2012/news/blog-post-title/attachment/image-page/ (which doesnt exist) will go to http://mysite.com/2012/news/blog-post-title/ (which does exist). Along with redirecting up one level, I also need to remove anything after /attachment/ (in this case the "image-page." Any suggestions? Thanks in advance

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• How to move some changeset to a new branch in mercurial

  - by David Cournapeau

  Hi, I want to move a changeset from one branch to another. Basically, I currently have: A -> B -> C -> D # default branch And I want: A # default branch \-> B -> C -> D # some_new_branch Where some_new_branch does not exist yet. I am used to git, so I guess there is a simple "mercurial" way I am missing.

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• C++ std::vector problems

  - by Faur Ioan-Aurel

  For 2 days i tried to explain myself some of the things that are happening in my c++ code,and i can't get a good explanation.I must say that i'm more a java programmer.Long time i used quite a bit the C language but i guess Java erased those skills and now i'm hitting a wall trying to port a few classes from java to c++. So let's say that we have this 2 classes: class ForwardNetwork { protected: ForwardLayer* inputLayer; ForwardLayer* outputLayer; vector<ForwardLayer* > layers; public: void ForwardNetwork::getLayers(std::vector< ForwardLayer* >& result ) { for(int i= 0 ;i< layers.size(); i++){ ForwardLayer* lay = dynamic_cast<ForwardLayer*>(this->layers.at(i)); if(lay != NULL) result.push_back(lay); else cout << "Layer at#" << i << " is null" << endl; } } void ForwardNetwork::addLayer ( ForwardLayer* layer ) { if(layer != NULL) cout << "Before push layer is not null" << endl; //setup the forward and back pointer if ( this->outputLayer != NULL ) { layer->setPrevious ( this->outputLayer ); this->outputLayer->setNext ( layer ); } //update the input layer and outputLayer variables if ( this->layers.size() == 0 ) this->inputLayer = this->outputLayer = layer; else this->outputLayer = layer; //push layer in vector this->layers.push_back ( layer ); for(int i = 0; i< layers.size();i++) if(layers[i] != NULL) cout << "Check::Layer[" << i << "] is not null!" << endl; } }; Second class: class Backpropagation : public Train { public: Backpropagation::Backpropagation ( FeedForwardNetwork* network ){ this->network = network; vector<FeedforwardLayer*> vec; network->getLayers(vec); } }; Now if i add from main() some layers into network via addLayer(..) method it's all good.My vector is just as it should.But after i call Backpropagation() constructor with a network object ,when i enter getLayers(), some of my objects from vector have their address set to NULL(they are randomly chosen:for example if i run my app once with 3 layer's into vector ,the first object from vector is null.If i run it second time first 2 objects are null,third time just first object null and so on). Now i can't explain why this is happening.I must say that all the objects that should be in vector they also live inside the network and they are not NULL; This happens everywhere after i done with addLayer() so not just in the getLayers(). I cant get a good grasp to this problem.I thought first that i might modify my vector.But i can't find such thing. Also why if the reference from vector is NULL ,the reference that lives inside ForwardNetwork as a linked list (inputLayer and outputLayer) is not NULL? I must ask for your help.Please ,if you have some advices don't hesitate! PS: as compiler i use g++ part of gcc 4.6.1 under ubuntu 11.10

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• Weird Facebooker Plugin & Pushion Passenger ModRails Production Error

  - by Ranknoodle

  I have an application (Rails 2.3.5) that I'm deploying to production Linux/Apache server using the latest Phushion Passenger/Apache Module 2.2.11 version. After deploying my original application, it returns a 500 error with no logging to production log. So I created a minimal test rails application, with some active record calls to the database to print out a list of objects to the home controller/my index page. I also cleared out all plugins. That works fine in the production environment. Then I one by one introduced each plugin that I'm using one at a time. Every plugin works fine EXCEPT facebooker. Every time I load the facebooker plugin into my app/vendor/plugins directory (via script git etc) my test application break (500 error - no error logging). Everytime I remove the facebooker plugin my test application works. Has anyone seen this before/ have any solutions? I saw this solution but didn't see it in the facebooker code.

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• TTRequestLoader always raises "TTDASSERT failed: _cacheKey == request.cacheKey"

  - by Hoang Pham

  I run the TTCatalog application from the Three20 library and encountered this error when click on the "Photo Thumbnails" of the "Three20 Catalog": TTDASSERT failed: _cacheKey == request.cacheKey I look at the breakpoint and see that it is on line 119 of TTRequestLoader.m of the method addRequest. I know that it failed to do the assertion of the cacheKey, but why this error appears even on the sample application, does anyone encounter the same error? What is the workaround of this? Thanks, P/S: I downloaded the Three20 from the git directory just yesterday. So I assume this be the newest one.

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• MovieClip, counter almost working AS3

  - by VideoDnd

  How do I get my counter to work? This was over my director's head. Please include explanation, and feel free to comment. CONFUSION: I'm confused about the MovieClip container in as3. public class NumbersView extends MovieClip, so that seems to be a container. That may not be the problem, but that's where I got lost. CODE http://videodnd.weebly.com/ The working version of this code is fantastic. My code bellow is an attempt at revising it. The source has been adapted from various smart people. It's a work in progress LIBRARY OBJECT 'vertical number column' Name: mc-NumberImage Class: NumberImage OUTPUT ERRORS 'When I uncomment the code" 1023: Incompatible override. NumbersView... 1021: Duplicate function definition. NumbersView... //NUMBER DOCUMENT CLASS //IMPORT import flash.display.Sprite; import flash.events.Event; import flash.utils.Timer; import flash.events.TimerEvent; import flash.display.DisplayObject; import flash.display.MovieClip; import flash.utils.Dictionary; import caurina.transitions.Tweener; //COUNTER var timer:Timer = new Timer(1000); var count:int = 0; var fcount:int = 0; timer.addEventListener(TimerEvent.TIMER, incrementCounter); timer.start(); function incrementCounter(event:TimerEvent) { count++; fcount=int(count*count/1000); } function formatCount(i:int):String { var fraction:int = i % 100; var whole:int = i / 100; return ("000000000" + i).substr(-9, 9); } //------------------------------------------------------------------------ //PROBLEM AREA function enterFrameHandler(e:Event):void { // numbers.setTime(formatCount(fcount)); } var _listItems:Array = new Array(); var previousNums:Array; const numHeight:int = 120; var NumbersView:Sprite = new Sprite(); //var numbers:NumbersView = new NumbersView; //NUMBERSVIEW // function NumbersView($n:int):void { _listItems = new Array(); previousNums = new Array(); var item:NumberImage; var offset:int = _listItems.length; for (var i:Number = 0; i < 9; i++) { item = new NumberImage(); // }//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< //------------------------------------------------------------------------ //PUSH ARRAY addChild(item); item.x = i * item.width; _listItems.push(item); } //TWEENER 'Y SCROLLING' function setTime($number:String):void { var nums:Array = $number.split(""); for (var i:Number = 0; i < nums.length; i++) { if (nums[i] == previousNums[i]) continue; Tweener.removeTweens(_listItems[i]); var newY:int = int(nums[i]) * -numHeight; if (_listItems[i].y < 0) _listItems[i].y = numHeight; Tweener.addTween(_listItems[i], { y:newY, time:3 } ); } previousNums = nums; } D E S C R I P T I O N COUNTER: formatCount needs to get passed to Tweener STAGE: for loop, sets up children to be added to the stage NumbersView becomes item, item array adds children to stage TWEENER: advances the vertical number column every time the count fires adds and removes WHY - Learning - Benifit in simplifying the classes and putting it in one FLA

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• What software development process do you use and how do you implement it?

  - by clyfe

  Post only what you do use not what you would like to use, so we can see what is the most popular in real life. I am interested only in theese issues: Project Model (waterfall, agile...) How are requirements gathered (and stored)? Revision control - what software, what workflow Build automation, what software, where does it fit ? How is the testing done ? How is the documentation done ? How is the quality assurance done ? Please provide short objective answers, don't speak from the books. EXAMPLE: In my company we are a small team of 5 people and we develop webapps using ruby. agile PM cucumber requirements git SCM - Integration Manager Workflow integrity CI rspec automated tests the project lead creats the documentation skeleton then it is filled by the developers ensure quality by peer reviewing code and manual peer-testing

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• how to write mute logic when mute state is unknown

  - by Delan Azabani

  I'm writing an indicator-sound clone for OSS4. Setting the volume works fine now, but I'm having trouble with the muting aspect of my program. A couple of facts about muting in OSS4: vmix doesn't have a mute (and we use vmix for volume control) also, the 'media keys' way of controlling volume doesn't set a mute control, but rather, volume = 0 The problem with this is, when reading the vmix volume and encountering zero, we don't know if the user has actually set it to zero, or has it set to some other value, but has mute on. How should I write my muting logic? git code, if that helps

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• Need some help deciphering a line of assembler code, from .NET JITted code

  - by Lasse V. Karlsen

  In a C# constructor, that ends up with a call to this(...), the actual call gets translated to this: 0000003d call dword ptr ds:[199B88E8h] What is the DS register contents here? I know it's the data-segment, but is this call through a VMT-table or similar? I doubt it though, since this(...) wouldn't be a call to a virtual method, just another constructor. I ask because the value at that location seems to be bad in some way, if I hit F11, trace into (Visual Studio 2008), on that call-instruction, the program crashes with an access violation. The code is deep inside a 3rd party control library, where, though I have the source code, I don't have the assemblies compiled with enough debug information that I can trace it through C# code, only through the disassembler, and then I have to match that back to the actual code. The C# code in question is this: public AxisRangeData(AxisRange range) : this(range, range.Axis) { } Reflector shows me this IL code: .maxstack 8 L_0000: ldarg.0 L_0001: ldarg.1 L_0002: ldarg.1 L_0003: callvirt instance class DevExpress.XtraCharts.AxisBase DevExpress.XtraCharts.AxisRange::get_Axis() L_0008: call instance void DevExpress.XtraCharts.Native.AxisRangeData::.ctor(class DevExpress.XtraCharts.ChartElement, class DevExpress.XtraCharts.AxisBase) L_000d: ret It's that last call there, to the other constructor of the same class, that fails. The debugger never surfaces inside the other method, it just crashes. The disassembly for the method after JITting is this: 00000000 push ebp 00000001 mov ebp,esp 00000003 sub esp,14h 00000006 mov dword ptr [ebp-4],ecx 00000009 mov dword ptr [ebp-8],edx 0000000c cmp dword ptr ds:[18890E24h],0 00000013 je 0000001A 00000015 call 61843511 0000001a mov eax,dword ptr [ebp-4] 0000001d mov dword ptr [ebp-0Ch],eax 00000020 mov eax,dword ptr [ebp-8] 00000023 mov dword ptr [ebp-10h],eax 00000026 mov ecx,dword ptr [ebp-8] 00000029 cmp dword ptr [ecx],ecx 0000002b call dword ptr ds:[1889D0DCh] // range.Axis 00000031 mov dword ptr [ebp-14h],eax 00000034 push dword ptr [ebp-14h] 00000037 mov edx,dword ptr [ebp-10h] 0000003a mov ecx,dword ptr [ebp-0Ch] 0000003d call dword ptr ds:[199B88E8h] // this(range, range.Axis)? 00000043 nop 00000044 mov esp,ebp 00000046 pop ebp 00000047 ret Basically what I'm asking is this: What the purpose of the ds:[ADDR] indirection here? VMT-table is only for virtual isn't it? and this is constructor Could the constructor have yet to be JITted, which could mean that the call would actually call through a JIT shim? I'm afraid I'm in deep water here, so anything might and could help. Edit: Well, the problem just got worse, or better, or whatever. We are developing the .NET feature in a C# project in a Visual Studio 2008 solution, and debugging and developing through Visual Studio. However, in the end, this code will be loaded into a .NET runtime hosted by a Win32 Delphi application. In order to facilitate easy experimentation of such features, we can also configure the Visual Studio project/solution/debugger to copy the produced dll's to the Delphi app's directory, and then execute the Delphi app, through the Visual Studio debugger. Turns out, the problem goes away if I run the program outside of the debugger, but during debugging, it crops up, every time. Not sure that helps, but since the code isn't slated for production release for another 6 months or so, then it takes some of the pressure off of it for the test release that we have soon. I'll dive into the memory parts later, but probably not until over the weekend, and post a followup.

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• Can I get build warnings from a custom build step in Qt Creator?

  - by Derick

  I have the following script that I run as a custom build step in Qt Creator: git ls-files . | egrep "\.cpp$|\.h$" | xargs vera++ Which then gives output: foo/bar.cpp:1: no copyright notice found Another script I also use is: cppcheck . --template gcc -q --enable=style,unusedFunctions With the output: apple.h:8: style: The class 'MyPie' has no constructor. Member variables not initialized. I would love to double-click on the error and go to the source in the Compile Output window. It seems that only gcc errors are detected and these custom ones are ignored even though they have the same format.

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• Rails: restful authentication setup help

  - by SuperString

  Hi I downloaded the plugin from http://github.com/techweenie/restful-authentication.git Then I run rails generate plugin authenticated user session This is the result I got: create vendor/plugins/authenticated create vendor/plugins/authenticated/MIT-LICENSE create vendor/plugins/authenticated/README create vendor/plugins/authenticated/Rakefile create vendor/plugins/authenticated/init.rb create vendor/plugins/authenticated/install.rb create vendor/plugins/authenticated/uninstall.rb create vendor/plugins/authenticated/lib create vendor/plugins/authenticated/lib/authenticated.rb invoke test_unit inside vendor/plugins/authenticated create test create test/authenticated_test.rb create test/test_helper.rb Then I tried to do rake db:migrate But I got error that says rake tasks in restful-authentication/tasks/auth.rake are deprecated. Use lib/tasks instead. I am new to rails, tried looking online but things seem to be outdated. Please help!

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• Test flash notice in layout view spec (rspec2, rails3)

  - by jbpros

  Hi! I'd like to spec the fact that my application layout view prints out flash notices. However the following code does not run, the flash method does not exist in view specs (as opposed to controller specs where it works perfectly): describe 'layouts/application' do it "renders flash notices" do flash[:notice] = "This is a notice!" render response.should contain "This is a notice!" end end Is my code wrong or is it a "not-yet-implemented feature" in Rspec 2? I'm on Rails3 and Rspec2 from its master branch on Git. Thanks!

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• FTP issue - VSFTPd and connecting to from FileZilla

  - by B Tyndall

  I'm trying to connect to a CentOS Linux box that I have hosted on EC2 and I think I have everything configured correctly but when I try to connect I get this series of messages Status: Connection established, waiting for welcome message... Response: 220 (vsFTPd 2.0.5) Command: USER tyndall Response: 331 Please specify the password. Command: PASS ********* Response: 230 Login successful. Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/home/tyndall" Command: TYPE I Response: 200 Switching to Binary mode. Command: PASV Error: Connection timed out Error: Failed to retrieve directory listing Not sure where to start troubleshooting this issue. Any ideas? Do I need to change any permissions? I would think this ID has the ability to see my own home directory. I am able to push/pull files from the command line version of FTP client working on Windows.

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• Fujitsu siemens V6535 - crash when going standby ?

  - by marc

  Welcome, I trouble with my laptop fujitsu siemens model V6535. My siemens work under Windows 7, and from upgrade time (vista to 7) notice something what make me really angry. When my siemens go to standby mode (when i don't use it for some time), power diode change to red and start blinking (standbay mode). When i push power button (wake up it), blinking diode change to green but nothing else happend (nothing on display, no sound of HDD). When i press power button few second and try turn it on again... it wont display anything... i have unplug charger and then shutdown and power on again without power cable. Then he start working... Few days ago i done upgrade bios to nevest version... but it don't help... Anyone have idea what can be wrong ?

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• Brew install pyqt mavericks

  - by user3722876

  I have some trouble installing PyQt on my Mac. HOMEBREW_VERSION: 0.9.5 ORIGIN: https://github.com/Homebrew/homebrew.git HEAD: d8af29d63a5b94ffee863788210c3a895315035f HOMEBREW_PREFIX: /usr/local HOMEBREW_CELLAR: /usr/local/Cellar CPU: quad-core 64-bit sandybridge OS X: 10.9.3-x86_64 Xcode: 5.1.1 CLT: 5.1.0.0.1.1396320587 Clang: 5.1 build 503 MacPorts/Fink: /opt/local/bin/port X11: 2.7.6 => /opt/X11 System Ruby: 2.0.0-451 Perl: /usr/bin/perl Python: /opt/local/bin/python => /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 Ruby: /usr/bin/ruby sip installation ok qt installation ok brew install pyqt => make 1 error generated. make[1]: *** [qtlib.o] Error 1 1 error generated. make[1]: *** [siplib.o] Error 1 make: *** [all] Error 2 No idea what's happening...

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• Which keyboard has better ergomics?

  - by Absolute0

  When I was a kid I fell hard on my right wrist and since then I always get wrist pains when angling my wrist very high up (ie: when using a very high shaped mouse or doing push ups). So I have narrowed down my choices for a keyboard to the following 2: Microsoft Natural 4000: And the Razer Arctosa: The Razer is a slim type keyboard similar to a laptop feel and the hand-rest would help with keeping my hands straight with respect to my forearms. I am more inclined on getting the razer but am not sure if this will benefit my wrists in the long run. Any thoughts on this would be greatly appreciated. Thanks.

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• Fujitsu Siemens V6535 laptop doesn't wake up - crash when going into standby?

  - by marc

  I'm having trouble with my laptop (Fujitsu Siemens model V6535). It runs Windows 7, and after I upgraded from Vista I've noticed something that makes me really angry. When my laptop goes into Standby, the power LED changes to red and starts blinking (standby mode). When I push the power button to wake it up it, the blinking LED changes to green but nothing else happens. Nothing on the display, no HDD sound. When I press the power button for a few seconds and then try turn it on again, it doesn't display anything. I have to unplug the charger, shut it off, and power it on again without the power cable. Then it starts working. A few days ago I upgraded the BIOS to the newest version, but it doesn't help. Does anyone have any idea what can be wrong?

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• OpenVPN Server Ethernet Bridging Question

  - by Hooplad

  Hello All, I am having a difficult time properly configuring an ethernet bridge using OpenVPN 2.0.9 install on CentOS 5 ( VPN server ). The goal that I am trying to complete is to connect a VM ( instance running on the same CentOS machine ) acting as a Microsoft Business Contact Manager server. I would then like this "BCM server" to serve Windows XP clients on 192.168.1.0/24 network as well as clients connecting from VPN ( 10.8.0.0/24 ). The setup as it is now was based off a known working configuration. The problem with the working configuration was that it would allow to the client to connect and access everything running on the VPN server ( SVN, Samba, VM Server ) but not any computers on the 192.168.1.0/24 network. I must disclose that the VPN server is behind a router/firewall. Ports are being forwarded correctly ( again, clients were able to connect to the VPN server with no problem. netcat confirms the udp port is open as well ). current ifconfig output br0 Link encap:Ethernet HWaddr 00:21:5E:4D:3A:C2 inet addr:192.168.1.169 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::221:5eff:fe4d:3ac2/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:846890 errors:0 dropped:0 overruns:0 frame:0 TX packets:3072351 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:42686842 (40.7 MiB) TX bytes:4540654180 (4.2 GiB) eth0 Link encap:Ethernet HWaddr 00:21:5E:4D:3A:C2 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:882641 errors:0 dropped:0 overruns:0 frame:0 TX packets:1781383 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:82342803 (78.5 MiB) TX bytes:2614727660 (2.4 GiB) Interrupt:169 eth1 Link encap:Ethernet HWaddr 00:21:5E:4D:3A:C3 UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:650 errors:0 dropped:0 overruns:0 frame:0 TX packets:1347223 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:67403 (65.8 KiB) TX bytes:1959529142 (1.8 GiB) Interrupt:233 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:17452058 errors:0 dropped:0 overruns:0 frame:0 TX packets:17452058 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:94020256229 (87.5 GiB) TX bytes:94020256229 (87.5 GiB) tap0 Link encap:Ethernet HWaddr DE:18:C6:D7:01:63 inet6 addr: fe80::dc18:c6ff:fed7:163/64 Scope:Link UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:3086 errors:0 dropped:166 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:0 (0.0 b) TX bytes:315099 (307.7 KiB) vmnet1 Link encap:Ethernet HWaddr 00:50:56:C0:00:01 inet addr:192.168.177.1 Bcast:192.168.177.255 Mask:255.255.255.0 inet6 addr: fe80::250:56ff:fec0:1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:4224 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) vmnet8 Link encap:Ethernet HWaddr 00:50:56:C0:00:08 inet addr:192.168.55.1 Bcast:192.168.55.255 Mask:255.255.255.0 inet6 addr: fe80::250:56ff:fec0:8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:4226 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) current route table Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.55.0 * 255.255.255.0 U 0 0 0 vmnet8 192.168.177.0 * 255.255.255.0 U 0 0 0 vmnet1 192.168.1.0 * 255.255.255.0 U 0 0 0 br0 current iptables output Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere ACCEPT all -- anywhere anywhere Chain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere Chain OUTPUT (policy ACCEPT) target prot opt source destination server_known_working.conf local banshee port 1194 proto udp dev tap0 ca ca.crt cert banshee_server.crt key banshee_server.key dh dh1024.pem server 10.8.0.0 255.255.255.0 ifconfig-pool-persist ipp.txt push "route 192.168.1.0 255.255.255.0" client-to-client keepalive 10 120 tls-auth ta.key 0 user nobody group nobody persist-key persist-tun status openvpn-status.log verb 4 The following is the current CentOS server config file. server_ethernet_bridged.conf ( current ) local 192.168.1.169 port 1194 proto udp dev tap0 ca ca.crt cert server.crt key server.key dh dh1024.pem ifconfig-pool-persist ipp.txt server-bridge 192.168.1.169 255.255.255.0 192.168.1.200 192.168.1.210 push "route 192.168.1.0 255.255.255.0 192.168.1.1" client-to-client keepalive 10 120 tls-auth ta.key 0 user nobody group nobody persist-key persist-tun status openvpn-status.log verb 6 The following is one of the client's config file that was used with the known working configuration. client.opvn client dev tap proto udp remote XXX.XXX.XXX 1194 resolv-retry infinite nobind persist-key persist-tun ca client.crt cert client.crt key client.key tls-auth client.key 1 verb 3 I have tried the HOWTO provided by OpenVPN as well as others http://www.thebakershome.net/openvpn%5Ftutorial?page=1 with no success. Any help or suggestions would be appreciated.

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• Where can I find the gtk-builder-convert script?

  - by Marty

  I've built a small GUI app for work that uses some .glade files for pop-up windows. Recently, the ground beneath me was shifted - my environment was upgraded. Newer pyGTK versions require GTKBuilder and .xml files instead of Glade and .glade files and now my poor app is broken. I need to convert the .glade file to the newer .xml file. Problem is Glade-3 is not on our system, and I can't find gtk-builder-convert on the web. I've looked at the Gnome GIT Browser, don't know where to start looking or how to search it. Would anyone be kind enough to point me to the gtk-builder-convert python script?

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