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• Mysql innoDB corruption after server crash

  - by Ward Loockx

  Yesterday my server died because an outage in the data center. Today it's back up, but having some problems with mysql. First of all my mysql server was not able to start. For this reason I deleted the files ib_logfile0 and ib_logfile1 in /var/lib/mysql folder (I still have the old failing files). After this my server was able to startup again. But now I see a lot of issues in the mysql log file. Sep 1 09:43:55 * mysqld: 120901 9:43:55 InnoDB: Error: page 70944 log sequence number 8 1483471899 Sep 1 09:43:55 * mysqld: InnoDB: is in the future! Current system log sequence number 5 612394935. Sep 1 09:43:55 * mysqld: InnoDB: Your database may be corrupt or you may have copied the InnoDB Sep 1 09:43:55 * mysqld: InnoDB: tablespace but not the InnoDB log files. See Sep 1 09:43:55 * mysqld: InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-recovery.html When I check the docs on mysql.com, I found that I need to recover my database with backups. I have a backup but not sure what's the good way on importing it. Or is there a way to recover without having to re-import the database again? So if I'm correct I need to put innodb_force_recovery to 4 in mysql and delete all current data and re-import? Is there a way to do this without having downtime? I also have one slave running. This slave has the current status now: Last_Error: Relay log read failure: Could not parse relay log event entry. The possible reasons are: the master's binary log is corrupted (you can check this by running 'mysqlbinlog' on the binary log), the slave's relay log is corrupted (you can check this by running 'mysqlbinlog' on the relay log), a network problem, or a bug in the master's or slave's MySQL code. If you want to check the master's binary log or slave's relay log, you will be able to know their names by issuing 'SHOW SLAVE STATUS' on this slave. How can I totally reset the slave after the new import on the master has happend? Hopefully we can find a solution without not to much downtime. Thanks!

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• Percentage of computers on Internet behind a NAT?

  - by Mr.M

  I'm in a process of developing a server application and I would like to know if there are some numbers (or experience from people) on how many computers are behind the NAT on the Internet? Since my application is supposed to be a small server, being forced to implement UPNP support and TCP hole-punching with an external server may sway my determination, especially if more than 80% of the Internet is behind NAT.

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• Does using a tiling window manager make a terminal multiplexer obsolete?

  - by Jan Westerdiep

  Since about half a year I have been enjoying a terminal multiplexer (tmux, to whomever it may concern), and have grown to like it. I would like to try a tiling WM as opposed to a stacked one some time in the future but cannot wrap my head around this simple question: Why would one use the splits in a multiplexer within a tiling WM? Is there an upside, besides of course the single instance you'd be running?

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• Dell PowerEdge R720 - Corrupted RAID

  - by BT643

  Apologies in advance for the lengthy question. We have a Dell PowerEdge R720 server with: 2 x 136GB SAS drives in RAID 1 for the OS (Ubuntu Server 12.04) 6 x 3TB SATA drives in RAID 5 for data A few days ago we were getting errors when trying to access files on the large RAID 5 partition. We rebooted the server and got a message about the raid controller has found a foriegn config. We've had this before, and just needed to use Dell's RAID configuration utility to import foreign config on the RAID. Last time this worked, but this time, it started doing a disk check then we got this: FSCK has returned the following: "/dev/sdb1 inode 364738 has a bad extended attribute block 7 /dev/sdb1 unexpected inconsistency run fsck manually (i.e without -a or -p options) MOUNTALL fsck /ourdatapartition [1019] terminated with status 4 MOUNTALL filesystem has errors /ourdatapartition errors where found while checking the disk drive for /ourdatapartition Press F to fix errors, I to Ignore or M for Manual Recovery" We pressed F to try and fix the errors, but it eventually errored with: Inode 275841084, i_blocks is 167080, should be 0. Fix? yes Inode 275841141 has an invalid extend node (blk 2206761006, lblk 0) Clear? yes Inode 275841141, i_blocks is 227872, should be 0. Fix? yes Inode 275842303 has an invalid extend node (blk 2206760975, lblk 0) Clear? yes .... Error storing directory block information (inode=275906766, block=0, num=2699516178): Memory allocation failed /dev/sdb1: ***** FILE SYSTEM WAS MODIFIED ***** e2fsck: aborted /dev/sdb1: ***** FILE SYSTEM WAS MODIFIED ***** mountall: fsck /ourdatapartition [1286] terminated with status 9 mountall: Unrecoverable fsck error: /ourdatapartition We noticed one of the drive lights was not lit at all, and thought this may have failed and be the problem. We replaced the drive with a spare, and tried "F" to repair it again, but we keep just getting the same error as above. In the RAID configuration utility, all drives show as "online" and "optimal". We do have this data on another replicated server, so we're not worried about "recovering" anything, we just want to get the system back online asap. The server has 64 or 32GB memory, can't remember off the top of my head, but either way, with a 14TB RAID, I think it may still not be enough. Thanks EDIT - I checked the memory usage while fsck was running as suggested and after 2 or 3 minutes, it looked like this, using up nearly all of our servers memory: When it failed after 5 minutes or so with the error in my post, the memory immediately freed up again:

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• Issues with configuration of Apache and mod_auth_sspi

  - by TekiusFanatikus

  I've been able to get this working using XAMP with Apache 2.0.55 and XAMP Apache 2.2.14 without any problems. However, when I attempt to configure our intranet server (Apache 2.0.59), I don't get the same results. The results are that the following variables contain the information desired: $_SERVER["REMOTE_USER"] AND $_SERVER["PHP_AUTH_USER"]. In this case, they are blank. I'm expecting "domain/user_name". Conf file stuff: <Directory "/xxx/xampp/htdocs/"> # # Possible values for the Options directive are "None", "All", # or any combination of: # Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews # # Note that "MultiViews" must be named *explicitly* --- "Options All" # doesn't give it to you. # # The Options directive is both complicated and important. Please see # http://httpd.apache.org/docs/2.2/mod/core.html#options # for more information. # #Options Indexes FollowSymLinks Includes ExecCGI Options Indexes FollowSymLinks # # AllowOverride controls what directives may be placed in .htaccess files. # It can be "All", "None", or any combination of the keywords: # Options FileInfo AuthConfig Limit # #AllowOverride All AllowOverride None # # Controls who can get stuff from this server. # #Order allow,deny #Allow from all Order allow,deny Allow from all #NT Domain Login AuthName "Intranet" AuthType SSPI SSPIAuth On SSPIAuthoritative On SSPIDomain "xxxx" SSPIOfferBasic Off SSPIPerRequestAuth On SSPIOmitDomain Off # keep domain name in userid string SSPIUsernameCase lower Require valid-user </Directory> I would like to note that I've modified the paths to reflect the intranet environment. I'm using the following module: http://sourceforge.net/projects/mod-auth-sspi/ Once the module is installed and the conf file is modified, the intranet environment's server scope isn't populated with the expected variables. Edit #1 <Directory "/path_here"> # # Possible values for the Options directive are "None", "All", # or any combination of: # Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews # # Note that "MultiViews" must be named *explicitly* --- "Options All" # doesn't give it to you. # # The Options directive is both complicated and important. Please see # http://httpd.apache.org/docs/2.2/mod/core.html#options # for more information. # #Options Indexes FollowSymLinks Includes ExecCGI Options Indexes FollowSymLinks # # AllowOverride controls what directives may be placed in .htaccess files. # It can be "All", "None", or any combination of the keywords: # Options FileInfo AuthConfig Limit # #AllowOverride All AllowOverride None # # Controls who can get stuff from this server. # #Order allow,deny #Allow from all Order allow,deny Allow from all #NT Domain Login AuthName "Intranet" AuthType SSPI SSPIAuth On SSPIAuthoritative On SSPIDomain "domain_here" SSPIOfferBasic On SSPIPerRequestAuth On SSPIOmitDomain Off # keep domain name in userid string SSPIUsernameCase lower Require valid-user </Directory>

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• Is there a compression method for compressing a group of very similar files, without archiving them?

  - by awiebe

  I want to compress a large nuber of files that have near identical headers, and also some data, however I do not wish to archive them, nor do I wish to zip them individually(because the copression ratio would be much higher if substitutions of similar blocks could be done using a single table). Does a compression method exist to do this already, or should I implement it myself. Note: Don't say "Disk space is cheap", because I may want to use this on an embedded system.

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• Run a local script on a remote server using ssh with out having to worry about quotes

  - by Michael Irey

  So I have been running local scripts fine on a remote server: ssh user@server '`cat local-script.sh`' However, today I have a script that has both single and double quotes in it. Which causes the script to fail because the output of cat local-script.sh is wrapped in quotes. With out modifying the script itself, is there a better way to handle this? I thought this may work: ssh user@server $(<local-script.sh) But is does not seem to do anything...

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• Cannot Send Item error in Outlook - permissions to registry?

  - by Tim Alexander

  The issue I am trying to solve is to do with users getting a Cannot Send Item error in Outlook 2007 connecting to Exchange 2007. Basically if there is an image in the email (either one they have pasted in or one from another email in the chain) they get a "Cannot Send Item" error. Initially thought it was a citrix issue but users get it when they RDP to a server as well. Changing the message to Rich Text works 80% of the time but I do not think this is a solution but more of a temporary workaround. After some troubleshooting we found that the error can be fixed by adding the user as a member of the local power users group. of course this is not really a fix. My thoughts were that the ability of a power user to add/remove software may give them more access to the registry which might allow them to get round a restriction that is in place for a normal user. I have tried going through a procmon but the wealth of information is confusing. It initially looked like it may be an Outlook 2007 email security setting but this does not change between power user and normal user (set to 1 in the registry, "Use the security setting from Outlook Security Settings Public Folders"). I am struggling to fine tune my troubleshooting to work out exactly what is blocking it. Has anyone had an experience with an error similar to this? Or are there any tips for trying to track down issues via procmon as I must admit my approach seems somewhat lacking :) EDIT: So I have trawled through the two logs we have from process monitor (one as a power user and one a normal user). annoyingly I can find no obvious difference where something is denied access. There are more access denied events in the normal user log but these are quickly followed by sucessful entries to the same path fractions of a second later. The only thing that does stand out is an access denied to HKCR.html. This does not even appear in the power user version of the log. From what I understand this helps determine the default browser which ties in nicely with the fact that 9 out of 10 times you can send the message as Rich Text. EDIT: Looks like KB2509470 was causing the issue. Not really sure why but when I can work out what it does and why it causes the problem will post here unless anyone beats me to it!

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• How to make firefox to spellcheck in multiple languages simultaneously?

  - by Vi

  I want to it to assume that text may be in mixture of languages and words should be looked up in multiple dictionaries. (E.g. everything in en-GB, en-US, ru, be and be-classic should be consider as good, everything else should be underlined and corrections from all dictionaries should be offered). Is there an add-on for "multi-language spell-check"? Alternatively, can I merge all dictionaries into one big combined dictionary?

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• is it dangerous for the processor core to be *always* loaded at 100%?

  - by javapowered

  In my HFT software I plan to use one core for stock index calculation. That would be simply while(true) loop without any delays which will calculate (sum and multiply) components as often as possible (so millions times per second) and I plan to do that 8 hours per day every day. I was never before loading my computer to 100% full time every day regullary. May it be dangerous? Do processor has kind of "resource" (very big of course) after which it can stopped working?

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• Ubuntu 8.10 and Ubuntu 9.10 in dual boot ?

  - by Arkapravo

  Hi Is it possible to have Ubuntu 8.10 as second (or third) boot with Ubuntu 9.10 as first boot ? I have not been able to get it to work, may be issues with Grub. PS : Don't ask me why I want this sort of dual boot, long story !

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• Losing connection when watching flash videos

  - by Borror0

  Whenever I play a flash video on my browser (whichever I use, Chrome, Firefox or IE), there's a risk that I lose my Internet connection. I know it's limited to my computer only as my roommates are unaffected. I'm the only one that loses connection. Using Internet Explorer's diagnosis tool always repairs the connection, but it's annoying as hell. My OS is Windows XP, if that matters. Anyone knows what may be causing this and how to fix it?

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• Allow Windows Domain users Local Admin rights on subset of Domain Computers

  - by growse

  I'm a bit new to AD management, so would appreciate some help in what may be a very simple task. I've got a domain that manages a bunch of different servers, and I want to grant local administrative rights to some domain users to some of the servers (the development webservers). I appreciate the group concept, so I imagine I would have to create a group containing the users in question another group containing the computers to grant them access to. What's the best way of going about this?

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• How can I change how OS X's 'say' command pronounces a word?

  - by jwhitlock

  OS X's say command is useful for some tasks (such as Skype's 'notify me when a contact comes online), but it is pronouncing some names incorrectly. Is there a way to teach say to pronounce a word differently? For example, try: say "Hi, Joel Spolsky" The 'ol' sounds like 'ball' rather than 'old'. I'd like to add an exception that say "Pronounce Spolsky like this", rather than try to teach new linguistic rules. I bet there is a way since it can pronounce "iphone" as Apple wants. Update - After some research, here's what I've learned: Text-to-speech is split between turning the text to phonemes, and then the phonemes are turned into audio using a voice. Changing the voice doesn't effect the phonemes. The Speech Synthesis Manager has some functions for turning text to phonemes, and a method for registering a speech dictionary that will add new text-phoneme maps. However, Apple's speech dictionary must be in a binary form - I didn't find any plist XML. Using dtrace while running say, I found some interesting files opened in /System/Library/PrivateFrameworks/SpeechDictionary.framework/Resources. This is probably the speech dictionary, but they are all binary, except for Homophones, which is XML. Adding entries to Homophones does nothing - it is probably used in speech-to-text. They are also code signed by Apple - changing them may prevent some programs from working. PrefixDictionary CartNames CartLite SymbolDictionary Homophones There are ways to add text versions of application interface elements so VoiceOver works, a lot of which a developer gets for free, but there are tricky bits. The standard here appears to be to use a phonetic spelling as needed. My guesses are: say is a light layer of code on top of the Speech Synthesis Manager. It would be easy for the Apple devs to add a command line option to take the path to a speech dictionary plist for alternate phoneme mapping, but they didn't. It may be a useful open-source project to write a better say. Skype probably uses Speech Synthesis Manager directly, leaving no hooks to change the way my friend's names are pronounced, other than spelling them phonetically, which is silly. The easiest way to make a command line version of say is how JRobert suggested. Here's my quick implementation, using Doug Harris's spelling suggestion: #!/bin/sh echo $@ | tr '[A-Z]' '[a-z]' | sed "s/spolsky/spowlsky/g" | /usr/bin/say Finally, some fun command line stuff: # Apple is weird sqlite3 /System/Library/PrivateFrameworks/SpeechDictionary.framework/Resources/Tuples .dump # Get too much information about what files are being opened sudo dtrace -n 'syscall::open*:entry { printf("%s %s",execname,copyinstr(arg0)); }' # Just fun say -v bad "Joel Spolsky Spolsky Spolsky Spolsky Spolsky, Joel Spolsky Spolsky Spolsky Spolsky Spolsky" echo "scale=1000; 4*a(1)" | bc -l | say

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• Git autocomplete stopped working in Oh My ZSH

  - by Eric

  Help! My git autocomplete stopped working in Oh My ZSH. It was working, but now it is now. I'm not sure what changed, so I'm hoping someone can help me track down the problem. I've tried uninstalling and reinstalling but no luck, Which plugins would you like to load? (plugins can be found in ~/.oh-my-zsh/plugins/*) # Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/ # Example format: plugins=(rails git textmate ruby lighthouse) plugins=(git)

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• What is a "PR"? What does PR stand for in the context of FreeBSD Ports

  - by Jared Updike

  Compare: http://www.freebsd.org/prstats/index.html A specific "PR": http://www.freebsd.org/cgi/query-pr.cgi?pr=134774 Does it stand for Portability Report? or something similar? I can tell it has to do with tracking bug reports and build problems for specific ports but the acronym is baffling me. It may also be used in the Linux world but Googling for "Linux PR" only yields results related to Public Relations. Apparently FreeBSD has PRs and Linux has Public Relations.

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• How can I use Zend Studio for Java development?

  - by Itay Moav

  I have the Zend Studio, which is a PHP editor based on Eclipse. I want to use it now to develop some Java. I think Zend has disabled all the Java centric project/views/perspectives that come with Eclipse (or may be not included the right plugins?) What steps should I take to use it, instead of having two Eclipse instances open at the same time.

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• Published software not displayed in Add/Remove Programs

  - by vikramsjn

  I just followed How to use Group Policy to remotely install software in Windows Server 2003 to try publishing a software (MSI file). I could follow all the steps, but the supposedly successfully published software does not appear on client/user machine's Add/Remove Programs. Could some help figure why this may not be working. Update: On reading this question on Experts-Exchange, tried gpresults. Output extract follows: COMPUTER SETTINGS The following GPOs were not applied because they were filtered out XADistribution Filtering: Denied (Security) Default Domain Policy Filtering: Denied (Security)

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• Apache return binary data on the headers

  - by Camvoya

  Sometimes when i get my page, the apache return a file named 4r4fq34sd.part . the file seem a random name. And the content is: i»{h»¿ox..(a lot of binary)¿ox.... Date: Wed, 12 May 2010 13:40:10 GMT Server: Apache X-Powered-By: PHP/5.2.12-pl0-gentoo And i don´t can find in google the solution. Thanks

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• Induce Mac graphical login from SSH

  - by Ben Alpert

  The title says it all. Is there a way to make the loginwindow process start a user session by running a command when remotely logged in via SSH as an admin on Mac OS X? When the machine is at the login window (no user is currently logged in), I want it to open up a user's session as if I had clicked on the username and entered a password. Solutions that don't involve scripting the GUI are highly preferred, but this Apple KB page may be of interest for those who go that route.

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• Loosing network cached passwords after a restart on Vista

  - by Nauman

  The passwords cached for Network shares on other computers and applications like MSN Live, MS Outlook, Sharepoint portal, Outlook Webmail, etc are lost when I reboot my computer, which runs on Vista. I always check the Remember password checkbox in applications/login dialogs where ever prompted. I cannot imagine of a third party program that may clean up this on system restart/shutdown. Any idea, as to what is going wrong?

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• apt-get erroring because of a broken package

  - by MegaEduX

  Everytime I run apt-get install or update on my server I get the following error: (May not be exactly this because I am translating from portuguese) An error was found when processing: netatalk E: Sub-process /usr/bin/dpkg returned an error code (1) I am not trying to install that package. This error appeared when I tried to install that package, which failed to install, and it won't disappear. This doesn't prevent me from installing other packages. It installs them, just gives this error at the end.

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• making "Untraceable"-like calls

  - by infoquad

  In the movie Untraceable(http://www.imdb.com/title/tt0880578/), the killer(Joseph Cross as KillWithMe.com's webmaster) makes a telephone call with a computer and using some software(that convert's the actor's voice to female) fakes himself as a girl. While the converting part may be technologically difficult to accomplish at this time, I wanted to ask whether it is possible to make calls with a computer, record the conversations and play an mp3 file so the other person hears it? How can this be done?

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• Any home design software similar to The Sims 3?

  - by Level1Coder

  I tried Sketchup to sketch a home design but I find the controls a bit frustrating. I can sketch 10 times faster in The Sims 3, plus it is nicer to look at. Though the metric system may not be 1:1 ratio to reality but it's close, maybe 15%-20% off but this is a just a sketch, right? Anyway, is there any software that does home design like The Sims 3? The same ease of use but at a more professional level and a real metric system?

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• Get Explorer preview for .eml files in Windows 7

  - by Pekka

  Is there an application or plug-in that allows viewing .eml E-Mail dumps (that may contain HTML and attachments) in Windows 7's preview pane? I'm aware of the possibility of adding the file type in the registry but that will give only a plain-text view of the files, not a parsed view. HTML viewing is a must for what I need, attachments are optional. Is there some top-notch E-Mail client that introduces this functionality? Is there a generic way of doing this?

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