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• INNODB mysql. Plugin disabled

  - by alexcunn

  When I startup mysql on my unbuntu server I will get a message. 121122 17:39:37 [Note] Plugin 'FEDERATED' is disabled. 121122 17:39:37 InnoDB: The InnoDB memory heap is disabled 121122 17:39:37 InnoDB: Mutexes and rw_locks use GCC atomic builtins 121122 17:39:37 InnoDB: Compressed tables use zlib 1.2.3.4 121122 17:39:37 InnoDB: Initializing buffer pool, size = 128.0M InnoDB: mmap(137363456 bytes) failed; errno 12 121122 17:39:37 InnoDB: Completed initialization of buffer pool 121122 17:39:37 InnoDB: Fatal error: cannot allocate memory for the buffer pool 121122 17:39:37 [ERROR] Plugin 'InnoDB' init function returned error. 121122 17:39:37 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 121122 17:39:37 [ERROR] Unknown/unsupported storage engine: InnoDB 121122 17:39:37 [ERROR] Aborting 121122 17:39:37 [Note] mysqld: Shutdown complete a few times I have got a message saying that the plugin is disabled. I use webmin to configure it. Could that be a problem?

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• What is the best position for power unit?

  - by guest86

  I would like to buy new computer case. Last time I bought a computer was in 2008 and many things have changed up to day. Many new computer cases have power unit placed down, on bottom. I'm thinking about buying some of those cases, but i'm not sure about something - if power unit is placed on the bottom it can't take away hot air from the case and pump it out right? All my PC parts are silent - CPU (E8200, placed below 12cm Nochtua fan of power unit) has heat-pipe cooler with Nochtua fan spinning at only 800rpms, GPU has cooler powered by 7V instead 12 and that's why i don't want to HAVE TO place another fan to pump out hot air instead of PU placed on top. That might make some noise. So i ask someone more experienced: if i buy some computer case with PU placed down, do i HAVE TO place some fan to pump out hot air?

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• How to disable Mac OS X from using swap when there still is "Inactive" memory?

  - by Motin

  A common phenomena in my day to day usage (and several other's according to various posts throughout the internet) of OS X, the system seems to become slow whenever there is no more "Free" memory available. Supposedly, this is due to swapping, since heavy disk activity is apparent and that vm_stat reports many pageouts. (Correct me from wrong) However, the amount of "Inactive" ram is typically around 12.5%-25% of all available memory (^1.) when swapping starts/occurs/ends. According to http://support.apple.com/kb/ht1342 : Inactive memory This information in memory is not actively being used, but was recently used. For example, if you've been using Mail and then quit it, the RAM that Mail was using is marked as Inactive memory. This Inactive memory is available for use by another application, just like Free memory. However, if you open Mail before its Inactive memory is used by a different application, Mail will open quicker because its Inactive memory is converted to Active memory, instead of loading Mail from the slower hard disk. And according to http://developer.apple.com/library/mac/#documentation/Performance/Conceptual/ManagingMemory/Articles/AboutMemory.html : The inactive list contains pages that are currently resident in physical memory but have not been accessed recently. These pages contain valid data but may be released from memory at any time. So, basically: When a program has quit, it's memory becomes marked as Inactive and should be claimable at any time. Still, OS X will prefer to start swapping out memory to the Swap file instead of just claiming this memory, whenever the "Free" memory gets to low. Why? What is the advantage of this behavior over, say, instantly releasing Inactive memory and not even touch the swap file? Some sources (^2.) indicate that OS X would page out the "Inactive" memory to swap before releasing it, but that doesn't make sense now does it if the memory may be released from memory at any time? Swapping is expensive, releasing is cheap, right? Can this behavior be changed using some preference or known hack? (Preferably one that doesn't include disabling swap/dynamic_pager altogether and restarting...) I do appreciate the purge command, as well as the concept of Repairing disk permissions to force some Free memory, but those are ways to painfully force more Free memory than to actually fixing the swap/release decision logic... Btw a similar question was asked here: http://forums.macnn.com/90/mac-os-x/434650/why-does-os-x-swap-when/ and here: http://hintsforums.macworld.com/showthread.php?t=87688 but even though the OPs re-asked the core question, none of the replies addresses an answer to it... ^1. UPDATE 17-mar-2012 Since I first posted this question, I have gone from 4gb to 8gb of installed ram, and the problem remains. The amount of "Inactive" ram was 0.5gb-1.0gb before and is now typically around 1.0-2.0GB when swapping starts/occurs/ends, ie it seems that around 12.5%-25% of the ram is preserved as Inactive by osx kernel logic. ^2. For instance http://apple.stackexchange.com/questions/4288/what-does-it-mean-if-i-have-lots-of-inactive-memory-at-the-end-of-a-work-day : Once all your memory is used (free memory is 0), the OS will write out inactive memory to the swapfile to make more room in active memory. UPDATE 17-mar-2012 Here is a round-up of the methods that have been suggested to help so far: The purge command "Used to approximate initial boot conditions with a cold disk buffer cache for performance analysis. It does not affect anonymous memory that has been allocated through malloc, vm_allocate, etc". This is useful to prevent osx to swap-out the disk cache (which is ridiculous that osx actually does so in the first place), but with the downside that the disk cache is released, meaning that if the disk cache was not about to be swapped out, one would simply end up with a cold disk buffer cache, probably affecting performance negatively. The FreeMemory app and/or Repairing disk permissions to force some Free memory Doesn't help releasing any memory, only moving some gigabytes of memory contents from ram to the hd. In the end, this causes lots of swap-ins when I attempt to use the applications that were open while freeing memory, as a lot of its vm is now on swap. Speeding up swap-allocation using dynamicpagerwrapper Seems a good thing to do in order to speed up swap-usage, but does not address the problem of osx swapping in the first place while there is still inactive memory. Disabling swap by disabling dynamicpager and restarting This will force osx not to use swap to the price of the system hanging when all memory is used. Not a viable alternative... Disabling swap using a hacked dynamicpager Similar to disabling dynamicpager above, some excerpts from the comments to the blog post indicate that this is not a viable solution: "The Inactive Memory is high as usual". "when your system is running out of memory, the whole os hangs...", "if you consume the whole amount of memory of the mac, the machine will likely hang" To sum up, I am still unaware of a way of disabling Mac OS X from using swap when there still is "Inactive" memory. If it isn't possible, maybe at least there is an explanation somewhere of why osx prefers to swap out memory that may be released from memory at any time?

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• Why does cd print when run in command substitution?

  - by reasgt

  If I use the 'cd' BASH built-in in a command substitution, it prints extra stuff to stdout, but only when piped to, eg., less. $ echo `cd .` # The output is a single newline, appended by echo. $ echo `cd .` | less # less displays: ESC]2;my.hostname.com - tmp/testenv^G (END) What's going on there? This behavior isn't documented in the bash man page for cd. Obviously, running just 'cd' in a command substitution is silly, but something like NEWDIR=`cd mypath; pwd` could be useful. I solved this by instead using NEWVAR=`cd mypath > /dev/null 2>&1; pwd` but I still want to know what's going on. Bash Version: GNU bash, version 3.2.25(1)-release (x86_64-redhat-linux-gnu) Copyright (C) 2005 Free Software Foundation, Inc. Distro: Scientific Linux SL release 5.5 (Boron)

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• Unable to log into Ubuntu

  - by Rodnower

  I have Ubuntu 12.04.1. Last time I did nothing especial, but suddenly some problem appear: I have a login screen (using lightdm), when I attempt a login, I get a console session and returned to the login screen. I see that it is a known issue, so I tried everything from following steps: To removed .XAuthority Configure to use gdm Reinstall lightdm To include my user to nopasswdlogin group But nothing help... So, these are errors from /var/log/auth.log: Oct 3 01:11:48 alphabet-2 lightdm: pam_unix(lightdm:session): session opened for user lightdm by (uid=0) Oct 3 01:11:48 alphabet-2 lightdm: pam_ck_connector(lightdm:session): nox11 mode, ignoring PAM_TTY :0 Oct 3 01:11:48 alphabet-2 lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "andrey" Oct 3 01:11:48 alphabet-2 dbus[704]: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.35" (uid=104 pid=1709 comm="/usr/lib/indicator-datetime/indicator-datetime-ser") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination=":1.14" (uid=0 pid=1169 comm="/usr/sbin/console-kit-daemon --no-daemon ") Any ideas?

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• IDE <-> SATA Adapter Issue - Hard Drive Not recognized

  - by nicorellius

  I was trying to use one of these IDE to SATA adapters (Syba SD-ADA50016 IDE/SATA Converter Bi-directional IDE to SATA) and I connected a working hard drive (Seagate Barracuda 500 GB SATA 3.5 Inch 7200 RPM Version 12 Desktop Internal Hard Drive ST3500418AS). I could get the drive to be recognized by the BIOS, but I couldn't boot a Linux disc or install to the drive. I tried to install pfSense to this drive and the install failed because the setup couldn't recognize the file. Has anyone heard of these adapters giving trouble and/or not working properly? I would like to be able to use this device for newer drives on older boards.

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• Global hotkeys: songbird on KDE

  - by alpha1

  I'm running songbird on opensuse 11.2 KDE 4.3.1 on my EEE pc. On windows, there is a hotkey thing inside Songbird, so i set META F9,10,11,12 as media keys and it work just fine. On linux, there is not hotkey thing in songbird, and I would like to set those same hotkeys. I've played around with the Amarok Hotkeys, which are now setup that way, and looked in all the KDE shortcuts, but cannot find a way to add a new program and new hot keys. I know its possible, I did it before once, but the KDE shortcut programs have changed and I no longer see the stuff i used to do it before. I'd like to do the same to banshee at some point, but Songbird is the important program. Any Ideas? Any way to set those keys to generic media buttons?

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• Receiving "May not have permission to edit" warning, even though I have permissions

  - by Choy

  I'm using Panic Transmit as an FTP client connecting to an Ubuntu 12.x server. When I try to edit and upload a file using it, I receive the warning that tells me to check my permissions as I may not have permissions to edit a file. I'm not setting the permissions on upload and I do have permission to edit files. After clearing the warning and checking the file on the server, may changes go through. The files I'm trying to edit are set to 775 and are part of the www-data group which my user is part of as well. Any idea why I would be getting such a prompt? This only happens on some files, not all.

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• I can't run uwsgi as normal user

  - by atomAltera

  I want to run uwsgi server as www user, but if I write: uwsgi --socket $SOCKET --chmod-socket 666 --pidfile $PIDFILE --daemonize $LOGFILE --chdir $CHDIR --pp $PYTHONPATH --module main --post-buffering 8192 --workers 1 --threads 10 --uid www --gid www A socket creation error occurs: Log: 1 *** Starting uWSGI 1.4.1 (64bit) on [Mon Dec 10 22:15:23 2012] *** 2 compiled with version: 4.4.5 on 17 November 2012 23:31:14 3 os: Linux-2.6.32-5-amd64 #1 SMP Sun Sep 23 10:07:46 UTC 2012 4 nodename: autoblog 5 machine: x86_64 6 clock source: unix 7 pcre jit disabled 8 detected number of CPU cores: 2 9 current working directory: / 10 writing pidfile to /tmp/uwsgi_mysite.pid 11 detected binary path: /usr/local/bin/uwsgi 12 setgid() to 1002 13 set additional group 1004 (files) 14 setuid() to 1002 15 *** WARNING: you are running uWSGI without its master process manager *** 16 your memory page size is 4096 bytes 17 detected max file descriptor number: 1024 18 lock engine: pthread robust mutexes 19 unlink(): Operation not permitted [core/socket.c line 109] 20 bind(): Address already in use [core/socket.c line 141]

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• Set Windows 7 Default Login to a Non Domain Account

  - by Joe Taylor

  We have 12 Laptop Pc's that we have upgraded from Windows XP to Windows 7. The laptops are used by staff on away days. They log on to a local account on the machine - say User1 with no password. On the Windows XP Login screen there was a drop down menu allowing them to log on to the Local Machine. However in Windows7 there is no such box and it is confusing staff. Windows 7 tries to log into the domain by default, it doesn't seem to remember where the user last logged into. Is there a way to set Windows7 to log on to the local machine by default instead of the domain? I do not want the staff to have to type for example stafflaptop1\User1 when they log on.

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• Set Windows 7 Default Login to a Non Domain Account

  - by Joe Taylor

  We have 12 Laptop Pc's that we have upgraded from Windows XP to Windows 7. The laptops are used by staff on away days. They log on to a local account on the machine - say User1 with no password. On the Windows XP Login screen there was a drop down menu allowing them to log on to the Local Machine. However in Windows7 there is no such box and it is confusing staff. Windows 7 tries to log into the domain by default, it doesn't seem to remember where the user last logged into. Is there a way to set Windows7 to log on to the local machine by default instead of the domain? I do not want the staff to have to type for example stafflaptop1\User1 when they log on.

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• RAID1 Hard drives with Intel Controller

  - by Dave_H

  I have an older server with 2 35GB hard drives arranged as a RAID-1 drive. I have 3 open bays, I'd like to add 2 more hard drives to the open bays and have all 4 drives configured as a RAID-1 drive that Windows sees as 1 larger drive. Is this possible? If not, the new drives are 2x as big as the old drives, is it possible to replace 1 of the old drives and rebuild then replace the second drive and rebuild and somehow expand the array to use all of the available space? The server is using an Intel hardware raid controller, the software interface is Intel Storage Console v2.12.

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• Cablemodem frequent connection loss

  - by LVDave

  I have a Linksys BEFCMU10 cablemodem and a WRT54GL router with Tomato 1.27 firmware on Cox cable. My question is this: I get what seems to be random disconnects from the internet, where the cable modem lights are still normal, but I can connect nowhere, either via a url or an ip address. At the same time these disconnects are happening, I can go to the router's Tomato management webpage, and release/renew my external IP address from Cox's DHCP server. I've had Cox look at the signal levels on the cable modem, and they say they look fine. What brings back the modem, for sometimes as long as 17 days, is several power-cycles of the modem. I don't understand the underlying cable modem technology too well, but I do know that if I'm able to release/renew the DHCP-provided WAN address, I'd expect that the cable modem was working ok... Anybody have any ideas??

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• Best way to backup and restore millions of files

  - by bongo

  Hi, I'm facing a rebuilding of the volume on which I host the mail storage (kerio mailserver, which uses maildirs). I need to backup and restore as quick as possible the 3.5+ millions (for about 600GB) small files of the store directory. It takes more than 12 hours via rsync to a NFS share, but I also have a 1TB firewire 800 raid1 disk that I can use (from some preliminary tests it's faster). I'm working off a XServe intel. What is the fastest way to do it? Rsync? Finder copy? tar?

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• DKIM, SPF, PTR records are not working properly with my domain

  - by shihon

  I configured my server and well authenticate email system with DKIM key, SPF record and PTR records, when i start to sent out mails from phplist interface to my users ~50000, my domain is spammed by google. In headers, signed by and mailed by tag shows by my domain : appmail.co, I also test my domain via check mail provide by port25, report is: This message is an automatic response from Port25's authentication verifier service at verifier.port25.com. The service allows email senders to perform a simple check of various sender authentication mechanisms. It is provided free of charge, in the hope that it is useful to the email community. While it is not officially supported, we welcome any feedback you may have at . Thank you for using the verifier, The Port25 Solutions, Inc. team ========================================================== Summary of Results SPF check: pass DomainKeys check: neutral DKIM check: pass Sender-ID check: pass SpamAssassin check: ham ========================================================== Details: HELO hostname: app.appmail.co Source IP: 108.179.192.148 mail-from: [email protected] SPF check details: Result: pass ID(s) verified: [email protected] DNS record(s): appmail.co. SPF (no records) appmail.co. 14400 IN TXT "v=spf1 +a +mx +ip4:108.179.192.148 ?all" appmail.co. 14400 IN A 108.179.192.148 DomainKeys check details: Result: neutral (message not signed) ID(s) verified: [email protected] DNS record(s): DKIM check details: Result: pass (matches From: [email protected]) ID(s) verified: header.d=appmail.co Canonicalized Headers: content-type:multipart/alternative;'20'boundary=047d7b2eda75d8544d04c17b6841'0D''0A' to:[email protected]'0D''0A' from:shashank'20'sharma'20'<[email protected]>'0D''0A' subject:Test'0D''0A' message-id:<CADnDhbH9aDBk3Ho2-CrG7gwOoD6RNX0sFq4bWL64+kmo=9HjWg@mail.gmail.com>'0D''0A' date:Sat,'20'2'20'Jun'20'2012'20'16:44:50'20'+0530'0D''0A' mime-version:1.0'0D''0A' dkim-signature:v=1;'20'a=rsa-sha256;'20'q=dns/txt;'20'c=relaxed/relaxed;'20'd=appmail.co;'20's=default;'20'h=Content-Type:To:From:Subject:Message-ID:Date:MIME-Version;'20'bh=GS6uwlT+weKcrrLJ2I+cjBtWPq9nvhwRlNAJebOiQOk=;'20'b=; Canonicalized Body: --047d7b2eda75d8544d04c17b6841'0D''0A' Content-Type:'20'text/plain;'20'charset=UTF-8'0D''0A' '0D''0A' Hello'20'Senders'0D''0A' '0D''0A' --047d7b2eda75d8544d04c17b6841'0D''0A' Content-Type:'20'text/html;'20'charset=UTF-8'0D''0A' '0D''0A' Hello'20'Senders'0D''0A' '0D''0A' --047d7b2eda75d8544d04c17b6841--'0D''0A' DNS record(s): default._domainkey.appmail.co. 14400 IN TXT "v=DKIM1; k=rsa; p=MHwwDQYJKoZIhvcNAQEBBQADawAwaAJhALGCOdMeZRxRHoatH7/KCvI1CKS0wOOsTAq0LLgPsOpMolifpVQDKOWT2zq/6LHVmDVjXLbnWO2d4ry/riy7ei66pLpnAV5ceIUSjBRusI8jcF9CZhPrh/OImsKVUb9ceQIDAQAB;" NOTE: DKIM checking has been performed based on the latest DKIM specs (RFC 4871 or draft-ietf-dkim-base-10) and verification may fail for older versions. If you are using Port25's PowerMTA, you need to use version 3.2r11 or later to get a compatible version of DKIM. Sender-ID check details: Result: pass ID(s) verified: [email protected] DNS record(s): appmail.co. SPF (no records) appmail.co. 14400 IN TXT "v=spf1 +a +mx +ip4:108.179.192.148 ?all" appmail.co. 14400 IN A 108.179.192.148 SpamAssassin check details: SpamAssassin v3.3.1 (2010-03-16) Result: ham (-0.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message -0.5 BAYES_05 BODY: Bayes spam probability is 1 to 5% [score: 0.0288] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.5 SINGLE_HEADER_1K A single header contains 1K-2K characters ========================================================== Original Email Return-Path: <[email protected]> Received: from app.appmail.co (108.179.192.148) by verifier.port25.com id hp7qqo11u9cc for <[email protected]>; Sat, 2 Jun 2012 07:14:52 -0400 (envelope-from <[email protected]>) Authentication-Results: verifier.port25.com; spf=pass [email protected] Authentication-Results: verifier.port25.com; domainkeys=neutral (message not signed) [email protected] Authentication-Results: verifier.port25.com; dkim=pass (matches From: [email protected]) header.d=appmail.co Authentication-Results: verifier.port25.com; sender-id=pass [email protected] DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=appmail.co; s=default; h=Content-Type:To:From:Subject:Message-ID:Date:MIME-Version; bh=GS6uwlT+weKcrrLJ2I+cjBtWPq9nvhwRlNAJebOiQOk=;b=pNw3UQNMoNyZ2Ujv8omHGodKVu/55S8YdBEsA5TbRciga/H7f+5noiKvo60vU6oXYyzVKeozFHDoOEMV6m5UTgkdBefogl+9cUIbt5CSrTWA97D7tGS97JblTDXApbZH; Received: from mail-pb0-f46.google.com ([209.85.160.46]:57831) by app.appmail.co with esmtpa (Exim 4.77) (envelope-from <[email protected]>) id 1SamIF-00055f-Om for [email protected]; Sat, 02 Jun 2012 16:44:51 +0530 Received: by pbbrp8 with SMTP id rp8so4165728pbb.5 for <[email protected]>; Sat, 02 Jun 2012 04:14:51 -0700 (PDT) MIME-Version: 1.0 Received: by 10.68.216.33 with SMTP id on1mr19414885pbc.105.1338635690988; Sat, 02 Jun 2012 04:14:50 -0700 (PDT) Received: by 10.143.66.13 with HTTP; Sat, 2 Jun 2012 04:14:50 -0700 (PDT) Date: Sat, 2 Jun 2012 16:44:50 +0530 Message-ID: <CADnDhbH9aDBk3Ho2-CrG7gwOoD6RNX0sFq4bWL64+kmo=9HjWg@mail.gmail.com> Subject: Test From: shashank sharma <[email protected]> To: [email protected] Content-Type: multipart/alternative; boundary=047d7b2eda75d8544d04c17b6841 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - app.appmail.co X-AntiAbuse: Original Domain - verifier.port25.com X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - appmail.co --047d7b2eda75d8544d04c17b6841 Content-Type: text/plain; charset=UTF-8 Hello Senders --047d7b2eda75d8544d04c17b6841 Content-Type: text/html; charset=UTF-8 Hello Senders --047d7b2eda75d8544d04c17b6841-- I also tried to send mail on yahoo , rediff but i get mails in spam. Please help me to sort out this issue

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• Lot of FIN_WAIT2, CLOSE_WAIT , LAST_ACK and TIME_WAIT in Haproxy

  - by Tux

  We are running haproxy in production for around 10k+ concurrent users . But we are seeing lot of FIN_WAIT2, CLOSE_WAIT , LAST_ACK and TIME_WAIT in the netstat output. This output is on a 8G ubuntu-12.04 node. 8046 CLOSE_WAIT 1 CLOSING 1 established) 40869 ESTABLISHED 1212 FIN_WAIT1 7575 FIN_WAIT2 1 Foreign 2252 LAST_ACK 7 LISTEN 143 SYN_RECV 4920 TIME_WAIT Can someone please tell me what tweaking i need to do. Please note that all these connections are persistent connections . tcp_fin_timeout = 30 tcp_keepalive_time = 1800 Right now, the application is working fine. But wondering will be there any issues as we add more users to this haproxy node.

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• rsync to multiple destinations using same filelist?

  - by Dylan B.

  I'm wondering if it's possible for rsync to copy one directory to multiple remote destinations all in one go, or even in parallel. (not necessary, but would be useful.) Normally, something like the following would work just fine: $ rsync -Pav /junk user@host1:/backup $ rsync -Pav /junk user@host2:/backup $ rsync -Pav /junk user@host3:/backup And if that's the only option, I'll use that. However, /junk is located on a slow drive with quite a few files, and rebuilding the filelist of some ~12,000 files each time is agonizingly slow (~5 minutes) compared to the actual transfer/updating. Is it possible to do something like this, to accomplish the same thing: $ rsync -Pav /junk user@host1:/backup user@host2:/backup user@host3:/backup Thanks for looking!

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• HP ML115 with P400 Smart Array Controller

  - by John

  Hi, I have a HP ML115 server I have installed a HP P400 Smart Array Controller card, I also have 4 x 1TB Samsung Hard drives. I'm unable to get the the controller to detect the hard drives, I have changed the drives to SATA 1.5G without luck, I have also tried connecting a single 80GB Maxtor drive without luck The controller shows up just after boot and tries to initialize, The controller does not show up in the POST prompt, although I can see the controller when booting off a ACU CD THe controller firmware is a little old v4.12 but I have no way to update it. Any ideas on how I can get this going?

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• Moving Portable Office. Have a LAN & Phone line query?

  - by John Smith

  We are about to move a portable office that has 8 phones and 12 lan connections. They are all wired back to our main switch and Nortel bcm200 phone system which are only about 20m (65ft) away. After the move the office will be 180m (600ft) away from these. What is the maximum length of cable a digital phone line can be? I am aware that a lan connection can only be 100m (305ft) when using cat5e utp. Does this rule apply to phone connections also? If so how can I extend beyond 100m for the phones? I was going to install about three cabinets, 3 switches and 6 patch panels for the lan connections but the ideal struck me tonight that maybe I could run a fibre optic line. Would this be feasible? Any feedback on this is greatly appreciated. Thanks

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• Windows 7 "Backup completed but some files were skipped"

  - by Andrew Coleson

  I set up Windows 7 Pro to backup my files to a network path (woohoo!) and chose to backup "data for newly created users, libraries", and my user folder (no system image). All went fine (although the first backup took ~12 hours for some ridiculous reason), but at the end it gave me a message that "Your backup completed, but some files were skipped. Click to see which files." I checked and the "files" skipped were my 3 network-mapped drives, which is perfectly fine and reasonable behavior (I certainly don't need it to back up my network-mapped drives as part of my local PC backup), but in the Backup and Restore center it warns me that my Last backup was "Never" and the Action Center now has a permanent "Check your backup results" issue. Is there any way to set up the backup to exclude the network-mapped drives or tell it that I really don't mind that it skipped drives I never asked it to back up?

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• afp/smb transfers caps at 2 megabytes/sec, wireless N

  - by CQM

  I wanted to transfer files between two mac computers. The network is wireless-N and both computers have wireless-N modules in them. The problem is that when I transfer files between them, via file sharing (afp) the network speed caps at 2 megabytes/sec. Just downloading files from the internet I can get faster speeds, so this isn't a constriction of my wifi bandwidth, it appears to be a constriction of the protocol being used. My wifi-n is set to 130mbits, so I should see real world transfer speeds around 12-16 megabytes/sec I did this command on both computers sudo sysctl -w net.inet.tcp.delayed_ack=0 which is supposed to lower tcp overhead, but this did not affect it. How can I get the speed I am expecting?

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• Add unallocated space to lvm

  - by Newbie

  I shrunk my windows partition and now have 10 GB of unallocated space that I now want to use to grow my / partition which is an ext4 in an lvm. I'm running Fedora 12. I ran system-config-lvm but the "Initialize Entry" button is greyed out. The unallocated space is not adjacent to the lvm but I cannot move the partitions in GParted like I was able to with ext3 in the past. I cannot create a new partition either as it says it cannot have more than 4 primary partitions. I don't see any option to create an extended partition. So my question is, how do I add that unallocated space to the lvm so I can grow the size of the / partition? I don't want to reinstall Fedora.

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• Playing an Online mp3

  - by Mohsen

  I have a problem with playing online mp3s. I'm using latest version of javazoom's jlayer and basicplayer. Here is the exception: Caused by: javazoom.jlgui.basicplayer.BasicPlayerException: java.io.EOFException at javazoom.jlgui.basicplayer.BasicPlayer.initAudioInputStream(Unknown Source) at javazoom.jlgui.basicplayer.BasicPlayer.open(Unknown Source) ... 12 more Caused by: java.io.EOFException at java.io.DataInputStream.readInt(DataInputStream.java:375) at com.sun.media.sound.WaveFileReader.getFMT(WaveFileReader.java:244) at com.sun.media.sound.WaveFileReader.getAudioFileFormat(WaveFileReader.java:85) at javax.sound.sampled.AudioSystem.getAudioFileFormat(AudioSystem.java:985) at javazoom.jlgui.basicplayer.BasicPlayer.initAudioInputStream(Unknown Source) ... 15 more My java is 1.6.0_16. Certain files cannot be player through the Internet. I have a set of mp3s, playing one after the other. Randomly one mp3 doesn't work throwing above exception. Some mp3s can be played by calling again play() method if javazoom's basicplayer, but others can never be played online. I was able to find this post but I doubt if this really relates to my directx version or something. Mohsen

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• Windows 2003 SBS: no more CAL sold

  - by Gregory MOUSSAT

  I just discovered a hidden unmanaged server into a remote location. This is a Windows 2003 SBS with 5 CAL per device. There is currently 12 computers connected. So I want to buy more CALs. But SBS 2003 CALs are not sold anymore. Neither SBS 2008 CALs, which can be downgraded to 2003. And 2011 CALs can't be downgraded. So no legal solution if we want to stay with 2003. Sort of programmatic obsolescence. We can upgrade the server to 2011. But I'd like to let him as is (I don't "repair" working servers, and this often lead to bigger problems, especially on those non managed servers). Anyone see another solution ?

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• Add unallocated space to lvm

  - by Newbie

  I shrunk my windows partition and now have 10 GB of unallocated space that I now want to use to grow my / partition which is an ext4 in an lvm. I'm running Fedora 12. I ran system-config-lvm but the "Initialize Entry" button is greyed out. The unallocated space is not adjacent to the lvm but I cannot move the partitions in GParted like I was able to with ext3 in the past. I cannot create a new partition either as it says it cannot have more than 4 primary partitions. I don't see any option to create an extended partition. So my question is, how do I add that unallocated space to the lvm so I can grow the size of the / partition? I don't want to reinstall Fedora.

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