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• Static IPv6 address in Windows unused for outgoing connections

  - by Luc

  I'm running a Windows server and trying to get it to use a static IPv6 address for outgoing connections to other IPv6 hosts (such as Gmail). I need this because Gmail requires a ptr record, and I can't set one for random addresses. The static address is configured on the host, but it also has a temporary privacy address as well as a random address from the router it seems. By default Windows uses the privacy address; it seems this is the expected behavior (and it makes perfect sense for people/users that did not set a static address, but I did!). I've tried disabling the privacy address with: netsh int ipv6 set privacy disabled This indeed gets rid of the privacy address, but I still have the random address that the router assigned. To disable this, it was said I needed to disable "router discovery" using this command: net interface ipv6 set interface 14 routerdiscovery=disabled Upon doing this, all IPv6 connectivity is lost. If I do this while pinging Gmail, it will report "Destination host unreachable" as soon as I enter the command. In the static IPv6 configuration, I did configure the default gateway and prefix length, so I don't see why it's unable to connect. Probably has something to do with the lack of ARP in IPv6 and somehow being unable to resolve the router's MAC, but I wouldn't know how to fix this. Finally I've tried disabling the DHCPv6 lease with these commands: netsh interface ipv6 set interface "IDMZ Team" managedaddress=disabled netsh interface ipv6 set interface "IDMZ Team" otherstateful=disabled Which was to no avail; the host continues to obtain and use the router-assigned IPv6 address. The router is a FritzBox 7340, which shows me all the IPv4 and IPv6 addresses that the host (identified by MAC) utilizes, but I'm unable to change the assigned address. Maybe this could be done over the telnet interface of the router somehow, but again, I wouldn't know how to do this even if it's the way to go. In short, any of the following would probably solve my problem: Change Windows' source address selection behavior. Have Windows not get an address from the router and not generate a privacy address; Have the router hand out a static address and make Windows use that as source address. Recover connectivity after disabling router discovery on Windows. Alternatively I might use some (batch, perl, ...) script to throw away all IPv6 addresses except the desired one, but this feels rather hacky. If it's the only way (or less hacky than another hacky solution), it might be an option though. Thanks!

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• Portable USB drives hidden pertition - New request

  - by ZXC

  This question was made by Francesco on Jul 29 '11 at 17:14. and the replies were not satisfactory due they not point to an important problem that´s: Why could anyone want to make certain data only accesible for a program but not to the users?. For example: If I want to do a safe distribution of original music for demostration purposes I will need several requisites: 1) The music should be heard using a simple procedure like selecting the name of each song on a playlist of a mediaplayer. 2) The portable media, ussually a portable USB drive, must hide for complete and should make unaccesible the files that contain the audio data to anything but the mediaplayer, that must be in the first partition, the one that is visible. 3) Considering that´s impossible to really hide files in a non-hidden partition, a second hidden partition should be created in the USB drive and the audio data will be stored there. 4) The trick is to read the audio data files stored in the hidden partition with a mediaplayer stored in the visible partition, the media player also should be a complete standalone program and independent from any library of the operating system except of the OS audio system. 5) The hidden partition should have a copy protection scheme that could impede to do copies of the data or create working ISO images of it. I know that this description could not be technically accurate but it has a complete logic from the needs of a music producer against the problem of piracy. The philosophy that surrounds the concept is to transform a virtual object like a digital string of audio in a solid object like the analog vinyl discs are.

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• How to extract a Vorbis stream from a WAVE file?

  - by H.B.

  I would like to move the Vorbis stream into an ogg container but ffmpeg does not seem to recognize the stream. Even though MPlayer gives this output upon playback: Opening audio decoder: [acm] Win32/ACM decoders Loading codec DLL: 'vorbis.acm' Loaded DLL driver vorbis.acm at 10000000 Warning! ACM codec reports srcsize=0 AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000-176400) Selected audio codec: [vorbisacm] afm: acm (OggVorbis ACM) ffmpeg: ffmpeg -i Source.wav -acodec copy Target.ogg Input #0, wav, from 'Source.wav': Duration: 00:02:15.17, bitrate: 128 kb/s Stream #0.0: Audio: qg[0][0] / 0x6771, 44100 Hz, 2 channels, 128 kb/s [ogg @ 00000000003096C0] Unsupported codec id in stream 0 Output #0, ogg, to 'Target.ogg': Metadata: encoder : Lavf53.6.0 Stream #0.0: Audio: qg[0][0] / 0x6771, 44100 Hz, 2 channels, 128 kb/s Stream mapping: Stream #0.0 -> #0.0 Could not write header for output file #0 (incorrect codec parameters ?) Of course this does not necessarily need to be done via ffmpeg, any method that is workable would be fine... I have cut down one of the files to 512KB: sample.wav (Changed two chunk size fields in the wave header to account for this, the embedded stream is cut "without notice")

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• What is the fastest and best way to convert an rmvb video to mp4/mkv without losing any quality?

  - by Eric Leung

  the file will be played in a popbox3d. my old method was to convert the video using vidcoder (an offshoot of handbrake) using normal settings, but i've recently confirmed that this significantly reduces video and audio quality. i bumped up the conversion quality to 'high profile' and this produced a higher quality video but raised the conversion time to about twice the video length (95 minutes to convert a 45 minute video) on a core2duo laptop. this is less than ideal when a large number of videos need to be converted. i have tried a direct remuxing using mkv toolnix but this produced a video that refused to display video on the popbox3d, which is consistent with the reported: [quote=other old thread] it is possible to put RealMedia A/V in MKV container (used MKVtoolnix) - however, it is awkward to play later. RV40 is only suspected to be based on H.264 - simplify, is not consistent with MPEG-4 AVC specification. [/quote] i have read that ... [quote=from old thread] Under normal circumstances, [ffmpeg] should convert the video to .video.mp4 and the audio to (.wav then to) .audio.mp4, then mux the video and audio into a new .mp4 file and delete the temporary video-only and audio-only files.[/quote] and i am currently attempting to discover how this is done. help? PS: i download a lot of series from asia and for some strange reason, rmvb is a really popular format over there. sometimes, it's the only format that's available. unfortunately, it's a format that is incompatible with the popbox3d, so i have to convert the files before i can watch them on my tv.

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• What is a good alternative to Camtasia Studio (screen recording not required)?

  - by tnorthcutt

  I'm looking for a good alternative to Camtasia Studio - really just the video editing part. My current workflow looks like this: Record audio (with Audacity) Save screenshots of the subject matter (websites) Import audio and screenshots into Camtasia Use the zoom and callout tools in Camtasia to go along with the spoken audio and highlight certain parts of the sites Given that Camtasia costs $300 (I've been using a trial version), I'd like to find something else that can do this well. I suspect that a lot of the pricetag for Camtasia is because of the screencasting features. I've tried Sony Vegas Movie Studio, but it was really a lot more than I need. I'd like something relatively simple (so that new users can pick it up relatively quickly), with the zoom and callout functionality that Camtasia has. Any suggestions? Edit for clarity: I'm looking for a program that will let me combine the screenshots and audio, and (most importantly) that has features equal to or better than Camtasia for text overlays, highlighting areas on the screen, etc.

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• Merging cuesheet chapter halves into single track for an audiobook

  - by TheSavo

  I have an audiobook that I have ripped and I need some help constructing chapters. I have already made some cue sheets TITLE "Bookname" PERFORMER "the Author" FILE "File1.FLAC" wave ; 23971906.667 milliseconds TRACK 01 AUDIO TITLE "_Intro" INDEX 01 00:00:00 TRACK 02 AUDIO TITLE "CH 01" INDEX 01 24:15:50 TRACK 03 AUDIO TITLE "CH 02" INDEX 01 66:21:00 TRACK 04 AUDIO TITLE "CH 03" INDEX 01 87:05:00 The audio book is in two files. The chapter at the end of the first file is continued in the second file. However, the second file restates: The publisher Book Title List item Blah blah blah I would like to merge the two 'halves' of the chapter in one seamless track. The only way I can think to do this would be be: Bulk cut down the tracks. Drop the junk info into junk track Continue the track listings as normal Take the two "halves" of the target chapter and build a separate cue sheet for it. I know there has to be an easier way. I am ok with making the 'junk' info a 'gap' or something. These are are FLAC files that will be converted to MP3 for my phone and other potable devices. I have read the primers on cue sheets, but I am just not getting it.

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• Class hierarchy problem (with generic's variance!)

  - by devoured elysium

  The problem: class StatesChain : IState, IHasStateList { private TasksChain tasks = new TasksChain(); ... public IList<IState> States { get { return _taskChain.Tasks; } } IList<ITask> IHasTasksCollection.Tasks { get { return _taskChain.Tasks; } <-- ERROR! You can't do this in C#! I want to return an IList<ITask> from an IList<IStates>. } } Assuming the IList returned will be read-only, I know that what I'm trying to achieve is safe (or is it not?). Is there any way I can accomplish what I'm trying? I wouldn't want to try to implement myself the TasksChain algorithm (again!), as it would be error prone and would lead to code duplication. Maybe I could just define an abstract Chain and then implement both TasksChain and StatesChain from there? Or maybe implementing a Chain<T> class? How would you approach this situation? The Details: I have defined an ITask interface: public interface ITask { bool Run(); ITask FailureTask { get; } } and a IState interface that inherits from ITask: public interface IState : ITask { IState FailureState { get; } } I have also defined an IHasTasksList interface: interface IHasTasksList { List<Tasks> Tasks { get; } } and an IHasStatesList: interface IHasTasksList { List<Tasks> States { get; } } Now, I have defined a TasksChain, that is a class that has some code logic that will manipulate a chain of tasks (beware that TasksChain is itself a kind of ITask!): class TasksChain : ITask, IHasTasksList { IList<ITask> tasks = new List<ITask>(); ... public List<ITask> Tasks { get { return _tasks; } } ... } I am implementing a State the following way: public class State : IState { private readonly TaskChain _taskChain = new TaskChain(); public State(Precondition precondition, Execution execution) { _taskChain.Tasks.Add(precondition); _taskChain.Tasks.Add(execution); } public bool Run() { return _taskChain.Run(); } public IState FailureState { get { return (IState)_taskChain.Tasks[0].FailureTask; } } ITask ITask.FailureTask { get { return FailureState; } } } which, as you can see, makes use of explicit interface implementations to "hide" FailureTask and instead show FailureState property. The problem comes from the fact that I also want to define a StatesChain, that inherits both from IState and IHasStateList (and that also imples ITask and IHasTaskList, implemented as explicit interfaces) and I want it to also hide IHasTaskList's Tasks and only show IHasStateList's States. (What is contained in "The problem" section should really be after this, but I thought puting it first would be way more reader friendly). (pff..long text) Thanks!

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• LACP : Cisco ASA 5515 & Switch ProCurve 2920

  - by user979276

  I've two ASAs 5515 connected in failover Active/Stand by (on Gi0/5) My two ASAs are connected to two Switch ProCurve 2920 to have HA if something happens. So I plug something like that (don't pay attention to the arrows) : So one the ASA, I created a Port-Channel like that : interface GigabitEthernet0/0 nameif outside security-level 0 ip address 192.168.1.3 255.255.255.0 standby 192.168.1.4 ! interface GigabitEthernet0/1 speed 1000 duplex full channel-group 1 mode passive no nameif no security-level no ip address ! interface GigabitEthernet0/2 speed 1000 duplex full channel-group 1 mode passive no nameif no security-level no ip address ! interface Port-channel1.1 vlan 1 nameif inside security-level 100 ip address 192.168.8.1 255.255.255.0 standby 192.168.8.2 ! interface Port-channel1.10 vlan 10 nameif guest security-level 50 ip address 172.16.100.2 255.255.255.224 standby 172.16.100.3 ! interface Port-channel1.16 vlan 16 nameif dmz security-level 50 ip address 192.168.16.1 255.255.255.0 standby 192.168.16.2 On the switch, I created a trunk LACP capable with the port 1 and 2 on each switch, force the speed to 1000 and put the port un full duplex mode. BUT this is not working... I tried many things and I can't make it work. In this configuration, I can't ping anything between my ASA and my Switch (or any object connected). Here what I get on my ASA : Channel group 1 LACP port Admin Oper Port Port Port Flags State Priority Key Key Number State ----------------------------------------------------------------------------- Gi0/2 SP not-bndl 32768 0x1 0x1 0x3 0xc Gi0/1 FP not-bndl 32768 0x1 0x1 0x2 0x6 And on the Switchs : PORT LACP TRUNK PORT LACP LACP NUMB ENABLED GROUP STATUS PARTNER STATUS ----- ------- ----- ------ ------- ------ 1 Active trk1 Broken Yes Failure 2 Active trk1 Broken Yes Failure If I change the Cisco interface to LACP mode On, I can ping the switch from the ASA but nothing other objects conneted on the switch. If I look at the statut of LACP on the switch I see this : PORT LACP TRUNK PORT LACP LACP NUMB ENABLED GROUP STATUS PARTNER STATUS ----- ------- ----- ------ ------- ------ 1 Active trk1 Up No Success 2 Active trk1 Up No Success I don't have any clue on what's going on so If someone have any idea and help me on this, it would be great ! Feel free to ask me anything if you need any more information ! Thanks a lot !

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• Anyone have experience calling Rake from MSBuild for code gen and other benefits? How did it go? Wha

  - by Charlie Flowers

  While programming in C# using Visual Studio 2008, I often wish for "automatic" code generation. If possible, I'd like to achieve it by making my MSBuild solution file call out to Rake, which would call Ruby code for the code generation, having the resulting generated files automatically appear in my solution. Here's one business example (of many possible examples I could name) where this kind of automatic code generation would be helpful. In a recent project I had an interface with some properties that contained dollar amounts. I wanted a second interface and a third interface that had the same properties as the first interface, except they were "qualified" with a business unit name. Something like this: public interface IQuarterlyResults { double TotalRevenue { get; set; } double NetProfit { get; set; } } public interface IConsumerQuarterlyResults { double ConsumerTotalRevenue { get; set; } double ConsumerNetProfit { get; set; } } public interface ICorporateQuarterResults { double CorporateTotalRevenue { get; set; } double CorporateNetProfit { get; set; } } In this example, there is a "Consumer Business Unit" and a "Corporate Business Unit". Every property on IQuarterlyResults becomes a property called "Corporate" + [property name] on ICorporateQuarterlyResults, and likewise for IConsumerQuarterlyResults. Why make interfaces for these, rather than merely having an instance of IQuarterlyResults for Consumer and another instance for Corporate? Because, when working with the calculator object I was building, the user had to deal with 100's of properties, and it is much less confusing if he can deal with "fully qualified" property names such as "ConsumerNetProfit". But let's not get bogged down in this example. It is only an example and not the main question. The main question is this: I love using Ruby and ERB for code generation, and I love using Rake to manage dependencies between tasks. To solve the problem above, what I'd like to do is have MSBuild call out to Rake, and have Rake / Ruby read the list of properties on the "core" interface and then generate the code to make all the dependent interfaces and their properties. This would get triggered every time I do a build, because I'd put it into the MSBuild file for the VS.NET solution. Has anyone tried anything like this? How did it work out for you? What insights can you share about pros, cons, tips for success, etc.? Thanks!

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• how to use time out in mplayer?

  - by manoj

  I am trying to save audio using mplayer from a live http stream. saving audio is successful. If there is no live stream playing it does not exit automatically. Is there any way to set timeout if there is no live stream? code : mplayer -i -t 00:00:10 -acodec libmp3lame -ab 24 -ar 8000 audio.mp3 Thanks in advance.

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• How can I compose a WCF contract out of multiple interfaces?

  - by mafutrct

  I've got multiple interfaces. All of them should be inherited and exposed by a single contract interface. interface A { void X(); } interface B { void Y(); } interface C: A, B {} // this is the public contract How is this possible? I can't add ServiceContract to A and B because that would lead to multiple endpoints. And I don't want to new-override every method in C.

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• How can I fix Problems with interlaced video jerking/flicking when playedback on DVD players? (Mixin

  - by Simon P Stevens

  I'm trying to make a DVD and the final DVD jerks when played on standalone DVD players. It seems to play fine on PCs. I think the problem may be to do with interlacing settings when rendering the final output, but I'll outline the whole editing process I have followed in case I've made a mistake somewhere else. Most of the footage comes from a sony handy cam (one of those mini DVD ones) so isn't great quality. It was set to "high quality" (haha) and 16:9 aspect ratio when it was recorded. I copy the files directly from the mini DVDs onto the hard drive and import them into Cinelerra. In Cinelerra I set the format to 25fps, 720x576, RGBA-8bit, 16:9, interlaced bottom fields first. When I've finished the editing, I add a Fields to frames effect (set to bottom first) to each video track. I render to audio and video separately: Audio: AC3, 128kbps Video: YUV4MPEG steam, video pipe settings: ffmpeg -f yuv4mpegpipe -i - -y -target dvd -flags +ilme+ildct mpeg2video % Cinelerra often crashes during the rendering, so I set it to generate a new video file at each label, and combine them using cat when I've got a sucesful render of each one. Once I've combined them, I use mencoder to re-index them: mencoder -forceidx -oac copy -ovc copy merged.m2v -o mergedReIndexed.m2v I combine the audio and video files using ffmpeg: ffmpeg -i AudioFile.ac3 -i VideoFile.m2v -target dvd -flags +ilme+ildct FinalMovie.mpg Then I build the menus with spumux and I create the DVD file system with dvdauthor, and finally I write it do a dvd-r like this: nice -n -20 growisofs -dvd-compat -speed=2 -Z /dev/dvd -dvd-video -V VIDEO ./ && eject /dev/dvd Originally, when I did it the DVD flickered badly, so as suggested in a guide I added the fields to frames effect in cinelerra. Now it doesn't "flicker", but has become "jerky" when there is lots of motion, particularly when the camera is moving, so the whole background moves. This is what I've tried so far: Removed "mpeg2video" from cinelerra video render pipe. Removed +ilme from render pipe. Removed +ildct from render pipe. Removed +ilme from render audio/video rejoin command. Removed +ildct from render audio/video rejoin command. Added -alt to render pipe. Added -alt to render audio/video rejoin command. Tried with and without the frames to fields effect in Cinelerra. and various combinations of the above. I've also tried this: change the Cinelerra fps to 50, use fields to frames (instead of frames to fields), render to an intermediate QTforlinux jpeg video stream, re-importing that back into Cinelerra, adding a frames to fields effect and then rendering that output as normal (@25fps), and I still have the same problem. Has anyone experienced this "jerking" playback before? Can anyone give any suggestions on how to fix it? (Like I say, it plays back fine on a PC, but not on any of the standalone players I've tried)

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• Why does my computer run slowly and freeze sometimes?

  - by Brae

  EDIT I disabled sound in the BIOS, rebooted and it hung. I removed the (previously) faulty HDD, rebooted and it hung. I have managed to get my Realtek audio manager open again after its mysterious disappearance. Subsequently my microphone is now working again, to fix it I had to uninstall audio drivers, disable audio in BIOS, install audio drivers, enable audio in BIOS. Access via network (with faulty HDD in) seems to not be triggering hangs at the moment. I think with the sound problem fixed it might play a little nicer, but I think its still going to hang. If it does, then I'm fairly sure its been narrowed down to the mobo. EDIT Pretty convinced my motherboard is the culprit, because nothing else seems to have any obvious problems (bar the hard drive, which the PC still hangs without it being plugged in) So thank you all for helping, once I get more rep ill up a few of the answers. My PC is doing some weird things... Sometimes when I open up a program, lets say Adobe Photoshop, it will load everything normally, nice and quick no problems and I can use it fine. Other times its a little odd, and it loads the program as if it's only using half of the CPU. It's pretty obvious when it does it, normally the loading screen skims past, but when it does this weird load you see it slowly tick though each thing, and the program itself becomes incredibly slow. Even Google Chrome does it sometimes. Yet when I exit and reopen the program without doing anything else, it typically opens fine without lagging. I think this problem is probably a symptom of something bigger, because of other problems I'm having. Random hangs; no matter what I have open or what I'm doing. My PC will sort of freeze up for a few seconds. If music is playing it will either loop the last second or two, or it will buzz. This only lasts for a few seconds then it returns to normal without having to restart. During this time all programs lock up and freeze, and the mouse and keyboard are useless. I am also having a weird issue with my audio jacks, without touching my PC at all, sometimes I will see a popup saying that I have unplugged something or plugged something in, neither of which has actually happened. Pretty sure this is cause by the motherboard. I recently had a 'Pink Screen of Death' (yes pink) which pointed to my audio drivers. The lockups seem to happen with some consistency when someone is accessing my shared files via my home LAN. Which leads me to believe either one of my hard drives is acting up or more likely the controller. One of my drives had a bit of a crash before, I used Spinrite and managed to recover my stuff and now the drive appears to be working okay. This is possibly adding to the problems. My best guess is something has gone wrong with my motherboard, possibly a power issue or a chip has died, I really don't know. So what I would like to know is: Have I have missed some obvious diagnostic to help figure out what it is, or should I just bite the bullet and assume its my motherboard acting up and buy a new system? dxdiag[64-bit] - http://pastebin.com/G30kb2TL PSOD (minidump) - http://pastebin.com/aZsv0H56 HWiNFO64 (system info / specs) - http://pastebin.com/X6h3K8g6

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• tc rules block traffic from some hosts at network

  - by user139430

  I have a problem I can not solve. The script, which sets the rules for traffic shaping is blocking the traffic from some hosts.If I remove all the rules, then it works. I can not understand why? Here is my script... #!/bin/sh cmdTC=/sbin/tc rateLANDl="60mbit" ceilLANDl="60mbit" rateLANUl="40mbit" ceilLANUl="40mbit" quantLAN="1514" # Nowaday bandwidth limit set to 100mbit. # We devide it with 60mbit download and 40mbit upload bandthes. rateHiDl="30mbit" ceilHiDl="60mbit" rateHiUl="20mbit" ceilHiUl="40mbit" quantHi="1514" rateLoDl="30mbit" ceilLoDl="60mbit" rateLoUl="20mbit" ceilLoUl="40mbit" quantLo="1514" devNIF=eth0 devFIF=ifb0 modprobe ifb ip link set $devFIF up 2>/dev/null #exit 0 ################################################################################################ # Remove discuiplines from network and fake interfaces ################################################################################################ $cmdTC qdisc del dev $devNIF root 2>/dev/null $cmdTC qdisc del dev $devFIF root 2>/dev/null $cmdTC qdisc del dev $devNIF ingress 2>/dev/null if [ "$1" = "down" ]; then exit 0 fi ################################################################################################ # Create discuiplines for network interface ################################################################################################ $cmdTC qdisc add dev $devNIF root handle 1:0 htb default 12 # Create classes for network interface $cmdTC class add dev $devNIF parent 1:0 classid 1:1 htb rate ${rateLANDl} ceil ${ceilLANDl} quantum ${quantLAN} $cmdTC class add dev $devNIF parent 1:1 classid 1:11 htb rate ${rateHiDl} ceil ${ceilHiDl} quantum ${quantHi} $cmdTC class add dev $devNIF parent 1:1 classid 1:12 htb rate ${rateLoDl} ceil ${ceilLoDl} quantum ${quantLo} $cmdTC qdisc add dev $devNIF parent 1:11 handle 111: sfq perturb 10 $cmdTC qdisc add dev $devNIF parent 1:12 handle 112: sfq perturb 10 # Create filters for network interface $cmdTC filter add dev $devNIF protocol all parent 1:0 u32 match ip dst 10.252.2.0/24 flowid 1:11 $cmdTC filter add dev $devNIF protocol all parent 111: handle 111 flow hash keys dst divisor 1024 baseclass 1:11 $cmdTC filter add dev $devNIF protocol all parent 112: handle 112 flow hash keys dst divisor 1024 baseclass 1:12 ################################################################################################ # Create discuiplines for fake interface ################################################################################################ $cmdTC qdisc add dev $devFIF root handle 1:0 htb default 12 # Create classes for network interface $cmdTC class add dev $devFIF parent 1:0 classid 1:1 htb rate ${rateLANUl} ceil ${ceilLANUl} quantum ${quantLAN} $cmdTC class add dev $devFIF parent 1:1 classid 1:11 htb rate ${rateHiUl} ceil ${ceilHiUl} quantum ${quantHi} $cmdTC class add dev $devFIF parent 1:1 classid 1:12 htb rate ${rateLoUl} ceil ${ceilLoUl} quantum ${quantLo} $cmdTC qdisc add dev $devFIF parent 1:11 handle 111: sfq perturb 10 $cmdTC qdisc add dev $devFIF parent 1:12 handle 112: sfq perturb 10 # Create filters for network interface $cmdTC filter add dev $devFIF protocol all parent 1:0 u32 match ip src 10.252.2.0/24 flowid 1:11 $cmdTC filter add dev $devFIF protocol all parent 111: handle 111 flow hash keys src divisor 1024 baseclass 1:11 $cmdTC filter add dev $devFIF protocol all parent 112: handle 112 flow hash keys src divisor 1024 baseclass 1:12 ################################################################################################ # Create redirect discuiplines from network to fake interface ################################################################################################ $cmdTC qdisc add dev $devNIF handle ffff:0 ingress $cmdTC filter add dev $devNIF parent ffff:0 protocol all u32 match u32 0 0 action mirred egress redirect dev $devFIF Here is my /etc/modules: loop ifb ppp_mppe nf_conntrack_pptp nt_conntrack_proto_gre nf_nat_pptp nf_nat_proto_gre The system is Linux wall 2.6.32-5-amd64 #1 SMP Sun Sep 23 10:07:46 UTC 2012 x86_64 GNU/Linux

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• Multiple Graphics Cards on Fedora 15 (Gnome 3)

  - by Michael

  I have the (delightful) misfortune of having 3 graphics cards. They are XFX Radeon 5750s. Each drives 2 monitors via dvi. I am having a really hard time getting these running on fedora 15 (gnome 3). So my setup is 3 columns of 2 monitors (the upper monitor is mounted upside down in each column to reduce the bezel between monitors). When the (graphical) login screen comes up all 6 have the blue stripey background that must be the default, but then when I login, things get interesting. In the xorg.conf below, you will see only 2 of the screens in the serverlayout while the other 4 are commented out. Logging in with only 2 of the screens active works well (and it even remembers that the top one is upside down, and should be considered above the lower, i am not sure where it stores this info, but i set it using the graphical "Displays" settings) However, as soon as I uncomment a third screen, or more, it gives me an error message when I login. It's one of those friendly, less helpful messages (Oh no! Something has gone wrong. A problem has occurred and the system can't recover. Please log out and try again). If i do not use an xorg.conf, then the "Displays" prefs pane shows only the two monitors on one of my graphics cards Thanks to anyone who can help me get going! (xorg.conf and then lspci below, and xorg log) xorg.conf Section "ServerLayout" Identifier "X.org Configured" Screen "Screen0" 0 0 Screen "Screen1" Below "Screen0" # Screen "Screen2" RightOf "Screen0" # Screen "Screen3" RightOf "Screen1" # Screen "Screen4" RightOf "Screen3" # Screen "Screen5" RightOf "Screen4" InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "Files" ModulePath "/usr/lib/xorg/modules" FontPath "catalogue:/etc/X11/fontpath.d" FontPath "built-ins" EndSection Section "Module" Load "record" Load "dri" Load "dbe" Load "extmod" Load "dri2" Load "glx" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" EndSection Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/input/mice" Option "ZAxisMapping" "4 5 6 7" EndSection Section "Monitor" Identifier "Monitor0" VendorName "Monitor Vendor" ModelName "Monitor Model" EndSection Section "Monitor" Identifier "Monitor1" VendorName "Monitor Vendor" ModelName "Monitor Model" EndSection Section "Monitor" Identifier "Monitor2" VendorName "Monitor Vendor" ModelName "Monitor Model" EndSection Section "Monitor" Identifier "Monitor3" VendorName "Monitor Vendor" ModelName "Monitor Model" EndSection Section "Monitor" Identifier "Monitor4" VendorName "Monitor Vendor" ModelName "Monitor Model" EndSection Section "Monitor" Identifier "Monitor5" VendorName "Monitor Vendor" ModelName "Monitor Model" EndSection Section "Device" Identifier "Card0" Driver "radeon" BusID "PCI:4:0:0" EndSection Section "Device" Identifier "Card1" Driver "radeon" BusID "PCI:5:0:0" EndSection Section "Device" Identifier "Card2" Driver "radeon" BusID "PCI:6:0:0" EndSection Section "Screen" Identifier "Screen0" Device "Card0" Monitor "Monitor0" SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen1" Device "Card0" Monitor "Monitor1" SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen2" Device "Card1" Monitor "Monitor2" SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen3" Device "Card1" Monitor "Monitor3" SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen4" Device "Card2" Monitor "Monitor4" SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen5" Device "Card2" Monitor "Monitor5" SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection lspci output follows [tgm@tgm ~]$ lspci 00:00.0 Host bridge: Intel Corporation 5520/5500/X58 I/O Hub to ESI Port (rev 13) 00:01.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 1 (rev 13) 00:03.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 3 (rev 13) 00:07.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 7 (rev 13) 00:14.0 PIC: Intel Corporation 5520/5500/X58 I/O Hub System Management Registers (rev 13) 00:14.1 PIC: Intel Corporation 5520/5500/X58 I/O Hub GPIO and Scratch Pad Registers (rev 13) 00:14.2 PIC: Intel Corporation 5520/5500/X58 I/O Hub Control Status and RAS Registers (rev 13) 00:14.3 PIC: Intel Corporation 5520/5500/X58 I/O Hub Throttle Registers (rev 13) 00:1a.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #4 00:1a.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #5 00:1a.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #6 00:1a.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #2 00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller 00:1c.0 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 1 00:1c.1 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Port 2 00:1c.2 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 3 00:1d.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #1 00:1d.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #2 00:1d.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #3 00:1d.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #1 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90) 00:1f.0 ISA bridge: Intel Corporation 82801JIR (ICH10R) LPC Interface Controller 00:1f.2 IDE interface: Intel Corporation 82801JI (ICH10 Family) 4 port SATA IDE Controller #1 00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller 00:1f.5 IDE interface: Intel Corporation 82801JI (ICH10 Family) 2 port SATA IDE Controller #2 02:00.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for mainboards (rev a3) 03:00.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for mainboards (rev a3) 03:02.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for mainboards (rev a3) 04:00.0 VGA compatible controller: ATI Technologies Inc Juniper [Radeon HD 5750 Series] 04:00.1 Audio device: ATI Technologies Inc Juniper HDMI Audio [Radeon HD 5700 Series] 05:00.0 VGA compatible controller: ATI Technologies Inc Juniper [Radeon HD 5750 Series] 05:00.1 Audio device: ATI Technologies Inc Juniper HDMI Audio [Radeon HD 5700 Series] 06:00.0 VGA compatible controller: ATI Technologies Inc Juniper [Radeon HD 5750 Series] 06:00.1 Audio device: ATI Technologies Inc Juniper HDMI Audio [Radeon HD 5700 Series] 07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02) 08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02) xorg log (posted to fpaste due to how long it is. thanks to marcusw for the request) http://www.fpaste.org/r5ww/ xorg log with all 6 monitors enabled in xorg.conf (they all turn on and have blue, but then one gets the aforementioned user-friendly error message). http://www.fpaste.org/X63H/

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• explain interfaces in C#

  - by Ashish

  //inteface i11 public interface i11 { void m11(); } //interface i22 public interface i22 { void m11(); } //class ab implements interfaces i11 and i22 public class ab : i11, i22 { public void m11() { Console.WriteLine("class"); } } now when in Main() method we create an object of class ab which interface method will get called please explain all.

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• How to tell if my sound card is listed in Device Manager?

  - by Bruhan

  The sound on my computer suddenly stopped working. When I check Sounds and Audio Devices in the Control Panel, I get "No Audio Device" with everything grayed out. When I check the Device Manager under "Sound, video and game controllers" I see the following list: Audio Codecs Legacy Audio Drivers Legacy Video Capture Devices Media Control Devices MPU-401 Compatible MIDI Device Standard Game Port Video Codecs None of these looks like my sound card. Of course, my sound "card" is not really a sound card, it's integrated with the nVidia-nForce motherboard. I'm running Windows XP. So is one of the above my sound device, or is the OS not detecting it? If the latter, how do I get it to detect it?

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• Understanding Covariant and Contravariant interfaces in C#

  - by SLC

  I've come across these in a textbook I am reading on C#, but I am having difficulty understanding them, probably due to lack of context. Is there a good concise explanation of what they are and what they are useful for out there? Edit for clarification: Covariant interface: interface IBibble<out T> . . Contravariant interface: interface IBibble<in T> . .

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• Windows 7 Desktop as Bluetooth Mixer

  - by J.R. Lillard

  I would like to stream all the audio from my Droid X2 to my desktop running Windows 7 via bluetooth. When I pair the two devices I can make this work but the audio plays through the internal speakers. I am actually wanting to listen to everything through a pair of bluetooth headphones. The end result would be that I could listen to music from my phone but easily pause it to listen to audio from the desktop instead. So far I have not had any luck. I thought about connecting the line out to the line in so I could monitor the line in from my headphones. My current setup is wiring the phone to the line in and then monitoring the line in through the headphones. I'm just wanting to eliminate the wire and go wireless the whole way. Is there something in Windows that prevents it from taking an inbound audio stream and sending it out another device?

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• How to remove unwanted charecters using split in tcl

  - by Mallikarjunarao

  Here is an example Interface {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} IP-Address {} {} {} {} {} OK? Method Status {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {Protocol FastEthernet0/0} {} {} {} {} {} {} {} {} {} {} {} unassigned {} {} {} {} {} YES unset {} administratively down down {} {} {} { FastEthernet0/1} {} {} {} {} {} {} {} {} {} {} {} unassigned {} {} {} {} {} YES unset {} administratively down down I want remove {} in this. I assumed all the above string interface variable set interface [string trimright [string trimleft $interface "{}"] "{}"] but it doesn't work. How to remove the {} in my example?

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• How to get headphones and speakers working at the same time?

  - by Borek

  I have a Gigabyte P55-UD3 motherboard which comes with a Realtek sound card and audio header for the front panel. My headset is permanently connected to the front panel (mic in, headphones in) and I also have speakers connected at the rear of the computer. What I want to achieve is that both the headphones and the speakers work at the same time. On my old PC with Realtek, I was able to do this by clicking "Device advanced settings" in the Realtek HD Audio Manager and then clicking "Make front and rear output devices playback two different audio streams simultaneously" and then doing some reassigning of front/rear settings in the Realtek Audio Manager (can't remember the details). But that doesn't seem to be working now - either the speakers play sounds or the headphones, not both at the same time. To pose the question differently, Windows plays the sounds on the "default device". I'd like to make both headphones and the speakers kind of like the default devices.

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• Why are interfaces unusable in PHP?

  - by streetparade

  I mean an interface definition without defining the return type makes it unusable? This makes more Clear Interface run { public function getInteger(); } class MyString implements run { public function myNumber() { } public function getInteger() { return "Not a number"; } } In Java every Interface has a return type like Integer,String,Void I know that PHP is unfortunately a loosly typed Language but isnt there a Solution for that Problem? Is it Possible to defining a Interface with a Return type like Integer?

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• After update, flash plugin playing video too fast or too slow

  - by John H

  Last night I did an update and reboot. After that, I couldn't reliably play any flash videos. They would either go too fast or stutter (as if they were buffering every 2 seconds). This occurs in both Firefox and Chrome, however I'll troubleshoot in Chrome because it's easier to enable/disable plugins at will. With PPAPI enabled (and npapi disabled), flash videos play at 1.5x speeds and audio is scrambled. With NPAPI enabled (and ppapi disabled), flash videos stutter and skip, despite showing a decent buffer. From one old thread, I went into pavucontrol and tried disabling the high def audio controller. I also tried disabling Totem plugin to no affect. Version other details: Linux freshdesk 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux $ cat /etc/*-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS" Shockwave Flash 11.3 r31 /opt/google/chrome/PepperFlash/libpepflashplayer.so 11.3.31.331 PPAPI (out-of-process) Shockwave Flash Version: 11.2 r202 Location: /usr/lib/adobe-flashplugin/libflashplayer.so Type: NPAP 01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 8400 GS] (rev a2) 01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1)

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• How to join video files from terminal?

  - by Leon Vitanos

  I have tried avidemux2_cli, mencoder, ffmpeg, cat.. But this doesn't always work (With the most of the times the error is that the audio codec is not the same) Maybe i put wrong options in the commands. So the commands: cat Sample.avi rrr.avi > complete.avi ffmpeg -i Sample.avi -i output.avi -vcodec copy -acodec copy complete.avi mencoder -ovc lavc -oac copy Sample.avi rrr.avi -o complete.avi avidemux2_cli --audio-codec copy --video-codec copy --output-format avi --load Sample.avi -append output.avi --save video.avi The cat problem is that it doesn't show error but it doesn't work always..Like the complete.avi will be exactly the same with Sample.avi Fmmpeg does nothing. The complete.avi is always the same with Sample.avi Mencoder error: All files must have identical audio codec and format for -oac copy. So the complete.avi is the same with Sample.avi avidemux2_cli there is no error but the complete.avi is again the same with Sample.avi.. So to sum up, all complete.avi are the same with Sample.avi.. And the problem is that they don't have the same audio codec ( i quess ).. Any ideas?

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• VGA monitor won't detect on NVIDIA Quadro NVS 4200M

  - by tanmayk

  I am on a Dell Latitude E6420 and just installed 12.04. When I plug in my external monitor's VGA cable, the laptop doesn't detect any new monitor. Here's the output of my lspci: 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04) 00:16.3 Serial controller: Intel Corporation 6 Series/C200 Series Chipset Family KT Controller (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4) 00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4) 00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) 00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b4) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04) 00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04) 01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [Quadro NVS 4200M] (rev a1) 01:00.1 Audio device: NVIDIA Corporation HDMI Audio stub (rev a1) 03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 (rev 34) 0b:00.0 SD Host controller: O2 Micro, Inc. Device 8221 (rev 05) 0b:00.1 Mass storage controller: O2 Micro, Inc. Device 8231 (rev 03) I tried installing the Quadro NVS 4200M from the nvidia website but got stuck in TTY after the installation finished. Any ideas as to how I can get the external monitor to work? Thanks!

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