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  • What does the float number indicate when using varnishtop?

    - by Abs
    I have Varnish running and I wanted to see what http response codes commonly occur. I used: varnishtop -i TxStatus However, I am struggling to work out what the numbers on the right mean? Is it number of requests? list length 7 1322.16 TxStatus 200 60.43 TxStatus 302 8.67 TxStatus 304 3.14 TxStatus 500 2.96 TxStatus 404 0.80 TxStatus 301 0.56 TxStatus 403

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  • How to enable Postfix filter on OS X server (Lion) without getting overwritten?

    - by mjbraun
    I have a Postfix after-queue content filter that works fine on stock Ubuntu Postfix install. However, on a OS X Lion Server I'm testing out, I see this "auto-generated" language in the master.cf file: # ==== Begin auto-generated section ======================================== # This section of the master.cf file is auto-generated by the Server Admin # Mail backend plugin whenever mails settings are modified. smtp inet n - n - 1 postscreen smtpd pass - - n - - smtpd -o receive_override_options=no_address_mappings The problem is, to enable the filter the same area of the master.cf file has to be changed to have an entry like this: smtp inet n - - - - smtpd -o content_filter=mytest_filter:dummy So, it looks like the line would be blown away every I make a change in Server Admin. Is there a better place for me to put the call to the filter such that it's persistent? I appreciate any assistance and/or guidance!

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  • Windows 7 re-installation

    - by GTX OC
    I need to reinstall Windows 7 but the problem is that all my partitions are set to Dynamic disk type.Windows cannot install on Dynamic disc type partitions.During the installation process there is an option to format the drive but I cannot change the disc type.Is there any way to convert the partitions back into primary so that I can re-install Windows?I am a complete fool.I don't even know why I converted the partition in which Windows was installed into dynamic type. I have a 1TB HDD having 4 partitions and all of them are dynamic. Thanks in advance.

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  • how can I estimate the conversion speed (fps) of a video based on CPU power? [closed]

    - by Ahoura Ghotbi
    Atm I am running a video sharing website and I am converting alot of videos. the queue is getting a bit too long (400 videos). I am planning on purchasing a new server and I was wondering if there anyway I can estimate the fps while converting 10 videos at the same time? Regards EXTRA INFO I am using MP4Box (which uses ffmpeg) to handle the encoding etc. Its encoding at 23 CRF, audio bitrate of 96 and audio sampling rate of 44100. The server will have the following processor : Dual Opteron 6272 (2 x 16 cores, 32 cores total) + 128GB RAM.

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  • Setting up multiple highlight rules in vim

    - by ICR
    I am trying to set up rules to highlight both trailing whitespace and lines which are over a certain length by adding this to my .vimrc: highlight ExtraWhitespace ctermbg=lightgray guibg=lightgray match ExtraWhitespace /\s\+$/ highlight OverLength ctermbg=lightgray guibg=lightgray match OverLength /\%>80v.\+/ However, it only seems to pick up whichever is last. I can't find a way to get them to both work simultaneously.

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  • HP ProLiant DL380 G3 Running Windows Server 2000 has crashed between 6-7:30am for the past 5 days

    - by user109717
    I have a HP ProLiant DL380 G3 running Windows Server 2000 that has been crashing everyday between 6-730am. This started when I changed out a failing hard drive 6 days ago. I have looked at the scheduled tasks which does not have anything pertaining to this issue. Below are the only things I see in the system log and some of the dump files. Can this be a hardware issue if this happens at a certain time frame everyday? Any help is greatly appreciated. Thanks The previous system shutdown at 6:07:55 AM on 2/7/2012 was unexpected. System Information Agent: Health: The server is operational again. The server has previously been shutdown by the Automatic Server Recovery (ASR) feature and has just become operational again. [SNMP TRAP: 6025 in CPQHLTH.MIB] BugCheck 7A, {3, c0000005, 3400028, 0} Probably caused by : memory_corruption ( nt!MiMakeSystemAddressValidPfn+42 ) Followup: MachineOwner 0: kd !analyze -v * Bugcheck Analysis * * KERNEL_DATA_INPAGE_ERROR (7a) The requested page of kernel data could not be read in. Typically caused by a bad block in the paging file or disk controller error. Also see KERNEL_STACK_INPAGE_ERROR. If the error status is 0xC000000E, 0xC000009C, 0xC000009D or 0xC0000185, it means the disk subsystem has experienced a failure. If the error status is 0xC000009A, then it means the request failed because a filesystem failed to make forward progress. Arguments: Arg1: 00000003, lock type that was held (value 1,2,3, or PTE address) Arg2: c0000005, error status (normally i/o status code) Arg3: 03400028, current process (virtual address for lock type 3, or PTE) Arg4: 00000000, virtual address that could not be in-paged (or PTE contents if arg1 is a PTE address) MODULE_NAME: nt IMAGE_NAME: memory_corruption BugCheck A, {0, 2, 1, 804137d6} Probably caused by : ntkrnlmp.exe ( nt!CcGetVirtualAddress+ba ) * Bugcheck Analysis * * IRQL_NOT_LESS_OR_EQUAL (a) An attempt was made to access a pageable (or completely invalid) address at an interrupt request level (IRQL) that is too high. This is usually caused by drivers using improper addresses. If a kernel debugger is available get the stack backtrace. Arguments: Arg1: 00000000, memory referenced Arg2: 00000002, IRQL Arg3: 00000001, bitfield : bit 0 : value 0 = read operation, 1 = write operation bit 3 : value 0 = not an execute operation, 1 = execute operation (only on chips which support this level of status) Arg4: 804137d6, address which referenced memory MODULE_NAME: nt IMAGE_NAME: ntkrnlmp.exe

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  • Web server HW requirements [closed]

    - by Kimo
    Hello, I am trying to search for a book that would teach me how to choose web server HW requirements (hard disk space/technology, ram, internet connection) based on web site statistics (requests per second, etc...), how to scale webservers in case my website is getter higher traffic, etc All I get from the internet is software-related articles. Does anyone know how I can dig in for this kind of information? May be I am just searching using the wrong keywords. Thanks

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  • Use backups if unavailable (not just down)

    - by PriceChild
    Using haproxy, I want: A pool of 'main' servers and 'backup' servers, though they don't necessarily have to be in separate pools. Each backend has a low 'maxconn' (in this case 1) Clients should not wait in a queue. If there are no immediately available servers in the 'main' pool they should be shunted to the 'backup' pool without delay. Right now I have one backend, 'main' servers have an absurdly high weighting and it 'works'. acl use_backend + connslots is along the right lines but without the patch in my own answer it isn't perfect. Bonus points for not requiring a modified haproxy binary.

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  • Output of free -m on a Linux server

    - by cat pants
    I can see from this page here: http://www.linuxatemyram.com/ That the correct amount of free ram is on the "-/+ buffers/cache" line. The extra ram being used is for disk caching. However, I noticed that the total amount of memory used listed in "-/+ buffers/cache" line is significantly less than the sum total of the "RES" column of the processes shown in top. And AFAIK, the "RES" column is how much physical memory is being used by a process. How do you explain this discrepancy?

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  • Mistakenly deleted files on my windows os

    - by Joshua. O
    I was trying to install another OS (ubuntu) on my laptop which already had a windows 7 installation. During the Ubuntu installation, I mistakenly clicked on the first option which was to erase the disk and install. It was only after the installation, that I realized the mistake. My question is how can I recover my original files from the windows installation even though I accidentally reformatted and installed Ubuntu?

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  • USB ports not working after restoring back

    - by jmainock
    After restoring this computer with a backup it appears that 2 of the 5 usb ports no longer work. I'm thinking that there is something corrupted on the backup disk causing the failure. When I plug in a usb keyboard to these ports the system will not recognize the new hardware on the 2 bad ports but does recognize new hardware on the remaining three ports. All the ports were working prior to the restoration.

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  • USB ports not working after restoring back

    - by jmainock
    After restoring this computer with a backup it appears that 2 of the 5 usb ports no longer work. I'm thinking that there is something corrupted on the backup disk causing the failure. When I plug in a usb keyboard to these ports the system will not recognize the new hardware on the 2 bad ports but does recognize new hardware on the remaining three ports. All the ports were working prior to the restoration.

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  • Is there a way to clone a vitualbox VM and keep the snapshots?

    - by Electrons_Ahoy
    As per questions like this, cloning a VM in VirtualBox is possible, if not all that streightforward. However, everything I've seen indicates that before a VM is cloned, all the snapshots need to be folded back into a single disk image. But, what if I don't want to? Suppose I want to keep my stack of snapshots on the original, and then clone that VM such that the clone also had the same stack of snapshots available? Is that possible?

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  • What (linux) directories are written to most/constantly?

    - by CH2048
    When I read articles on running Linux from a flash drive, many recommend that directories that see many or constant writes be mounted in ram (e.g. as tmpfs). My question is - Which directories will these typically be, and is there any way to monitor disk activity that would show which directories see many writes?

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  • HD video is slower than audio output

    - by Star
    I have an HD video files (1920x1080 H.264 DUAL AUDIO FLAC) file type: MKV file size: 1.25 GB file length: 24 minutes the problem is the video output is not synchronized with audio output, something slow too much sometime it gets too fast I tried running it on Windows Media Player , Media Player Classic , and a few other players, but the result is the same Additional Info: for device information I'm on LG S510 labtop

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  • Will modules installed by insmod command persist after rebooting?

    - by apache
    There is how the book I'm reading describe the insmod utility: The program loads the module code and data into the kernel, which, in turn, performs a function similar to that of ld, in that it links any unresolved symbol in the module to the symbol table of the kernel. Unlike the linker, however, the kernel doesn’t modify the module’s disk file, but rather an in-memory copy. It looks like it won't persist since it's in-memory, but I'm not sure.

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  • Running resize2fs on /

    - by user42363
    I'm trying to resize an ext4 filesystem on a Fedora 11 box. Using fsdisk and lvm, I was able to grow the partition and logical volume containing the filesystem. When I try to run resize2fs on the device containing the filesystem (/dev/sda2 in this case), I get: "Device or resource busy while trying to open /dev/sda2, Couldn't find valid filesystem superblock" I've tried this from a rescue disk that doesn't have the filesystem mounted, no joy. Maybe resize2fs doesn't know about ext4?

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