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• TrueCrypt: Open volume without mounting

  - by Totomobile

  I have a corrupt TrueCrypt volume. When I try to mount it, the password is fine but I get an error: hdiutil attach failed no mountable file systems I read a post that says you can try to recover the volume, but I have to open it first to try to recover it. I just need to open it without TrueCrypt trying to mount it too, so I can use that partition in a data recovery program. Also it's just an image file volume. I am using the Mac version, and I have setup an alias for the truecrypt shell command, but I'm not sure how to enter the syntax! Please help. thank you! T

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• TrueCrypt: Open volume without mounting

  - by Totomobile

  I have a corrupt TrueCrypt volume. When I try to mount it, the password is fine but I get an error: hdiutil attach failed no mountable file systems I read a post that says you can try to recover the volume, but I have to open it first to try to recover it. I just need to open it without TrueCrypt trying to mount it too, so I can use that partition in a data recovery program. Also it's just an image file volume. I am using the Mac version, and I have setup an alias for the truecrypt shell command, but I'm not sure how to enter the syntax! Please help. thank you! T

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• Guide for installing Zenoss remote SSH monitoring plugin for Ubuntu

  - by normalocity

  I'm trying out Zenoss. I got it to monitor a test machine via SNMP - that was easy enough. Now I want to add another server that is remote, and I want to use the SSH plugin. I've been using this guide, but it skips a few steps for non-RedHat systems. I'm on Ubuntu. The steps I have down so far are: Install alien Convert the .rpm to a .deb file Use dpkg to install teh .deb file My issue: where to get the .rpm file in the first place?

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• How to customize Windows Failover clustering to trigger on failure of custom window service?

  - by melaos

  i'm a total newbie on windows failover clustering. and what i want to do now is to setup the FC (failover clustering) on two win 2008 R2 server. and right now i have my custom window service running on both machine. But they cannot run concurrently as it will mess up the DB, thus i just want one to be available at all time (high availability). so i'm wondering if there's any way to set the failover policy to include this custom window service that i've installed on these machines so that if this service goes down or die, then it will automatically trigger the failover to the second node. is this possible? or must it be done programatically? and if so what is the best way? thanks ~m

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• Virtual Machine Manager 2012 CPU Average

  - by Grant

  What exactly is the CPU Average field in VMM 2012 showing me? I'm running Server 2008 R2 with VMM 2012. My server has 2x16 core CPUs installed. An example virtual machine has 4 virtual processors, and shows 20% CPU usage. Is that: 20% of the entire system's available CPU power? 20% of 4 of the 32 core's CPU power? 20% of one core's CPU? (in which case it could go as high as 400%) Something else entirely? How can I tell how much of the entire system's CPU power is being used (all 32 cores)? Edit: Well, I can tell for sure it's not 20% of the entire system's CPU power - since the entire server's CPU averages add up to well over 100% right now.

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• MySQL 5.5 on Windows server is horribly slow

  - by Brad

  I have had no luck getting MySQL 5.5 to be as fast as 5.1 or MariaDB on the exact same hardware/database/environment under Windows server 2003R2 or 2008R2. My benchmarks from our application: MySQL 5.5 + CentOS 5.2 (XenServer Virtual) = 28 seconds (box is "busy" not buried) MariaDB (5.1) + Windows 2003 (Physical box) = 130 seconds (box is 2% busy) MySQL 5.1 + Windows 2003 (Physical box) = 170 seconds (box is 2% busy) MySQL 5.5 + Windows 2003 (Physical box) = 305 seconds (As high as 600 seconds...) (box is 2% busy) The only difference between these runs is the removal of skip-locking and the running of mysql_upgrade.exe to update some tables for stored procs on 5.5. Yes, I know it's a release candidate, I'm feeding that back to MySQL as well. No slow queries are logged, it doesn't think it's being slow, it just is. I'm going to start tearing into the queries themselves to see if the INSERT/SELECT plans have gone buggo on 5.5. Any help would be appreciated! Thanks

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• Mysqldump causes "Too many connections"

  - by vbachev

  A scheduled backup using mysqldump on one of our databases is causing Too many connections. The database is of both InnoDB and MyISAM tables with size of around 500Mb. The Too many connections appears for about 2-3 minutes We understand that mysqldump locks the tables and causes all other queries and connections to pile up and jam the mysql server. We need frequent backups and we cannot afford server downtime or putting websites in maintenance mode while doing it. Our websites are global and traffic is high all the time so its hard to find a moment for backups. How can we avoid downtime during backups?Is there maybe a way to use mysqldump in way that it will not lock all tables at the same time?Is there an alternative to backing up with mysqldump?

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• How to get better video quality in Lync?

  - by sinned

  I want to use a ConferenceCam from Logitech to stream talks live via Lync. When I view the RAW webcam image via VLC, the quality is very good (but the latency is high because of buffering). However, when I stream it using Lync, the video gets blurry. Is there a way to ensure QoS in Lync or otherwise improve the video quality to (near-)native? I would rather have some dropped frames than a lower resolution where I can't read the slides. In my setup, I use Lync with an Office365-E3 contract, so I have no Lync-Server in my network. I thought about replacing Lync completely with VLC, but I first want to try Lync because VLC will probably cause firewall issues. Also, I haven't looked up the VLC parameters for less buffering, faster encoding, a bit lower resolution (natively it's more than HD) and streaming.

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• How to download source, modify source, recompile and build .deb package?

  - by burnersk

  I have to customize my Apache2 suExec module to ensure some special environment variables getting passed through suExec. How to download the source code form Debian package apache2-suexec, modify suexec.c - safe_env_lst, recompile and build a .deb package again to rollout on the production systems? I tried apt-get source apache2-suexec but didn't found the suexec.c within the occurred apache2-* folder. The altered source code should be like this: static const char *const safe_env_lst[] = { /* variable name starts with */ "HTTP_", "SSL_", /* NEW: Perl debugging variables */ "PERL5OPT=", "PERL5LIB=", "PERLDB_OPTS=", "DBGP_IDEKEY=", /* NEW: FCGI variables */ "FCGI=", "FCGI_CONNECTION=", "FCGI_RUNTIME=", "FCGI_STARTTIME=", draft based on: http://static.askapache.com/httpd/support/suexec.c

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• How to access shared folder between CentOS 6 and WinXP under vmware player 4

  - by q0987

  Based on Sharing Files between CentOS 6 and Windows Systems with Samba I am able to follow until section of "Accessing Samba Shares". however, my system is WinXP and I don't see CentOS 6 icon at all. In my left panel of explorer, I only see "My network places". For section "Accessing Windows Shares from CentOS 6", after I click workgroup, I only see a localhost icon. When I click this icon, I see "unable to mount location" error from CentOS. BTW: I have set the shared folder within WMWare Player 6.0. Whatelse I have to do in order to make the shared folder work? Thank you

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• Configuring jdbc-pool (tomcat 7)

  - by john

  i'm having some problems with tomcat 7 for configuring jdbc-pool : i`ve tried to follow this example: http://www.tomcatexpert.com/blog/2010/04/01/configuring-jdbc-pool-high-concurrency so i have: conf/server.xml <GlobalNamingResources> <Resource type="javax.sql.DataSource" name="jdbc/DB" factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" driverClassName="com.mysql.jdbc.Driver" url="jdbc:mysql://localhost:3306/mydb" username="user" password="password" /> </GlobalNamingResources> conf/context.xml <Context> <ResourceLink type="javax.sql.DataSource" name="jdbc/LocalDB" global="jdbc/DB" /> <Context> and when i try to do this: Context initContext = new InitialContext(); Context envContext = (Context)initContext.lookup("java:/comp/env"); DataSource datasource = (DataSource)envContext.lookup("jdbc/LocalDB"); Connection con = datasource.getConnection(); i keep getting this error: javax.naming.NameNotFoundException: Name jdbc is not bound in this Context at org.apache.naming.NamingContext.lookup(NamingContext.java:803) at org.apache.naming.NamingContext.lookup(NamingContext.java:159) pls help tnx

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• Booting large ISO through PXE

  - by Devator

  I currently have a FOG server (which works perfectly fine) and I'm trying to boot Windows 7 through it (with memdisk). But, since the ISO is rather large (more than 6 GB) it will try to put the ISO into memory and then boot however it crashes with the error message not enough memory to load specified image. The systems here don't have 6 GB of RAM so I need another way to boot it. I am aware of WDS and SCCM, however I want todo this with FOG. Is there any way to boot the ISO and install Windows through FOG?

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• User profile and desktop unclickable and unviewable from windows explorer

  - by Abel

  Situation: Windows Vista, latest updates. After restarting to complete an installation, I find myself looking at a totally black windows desktop without any icons. The start menu and taskbar, including quickstart icons, appears. Some, but not all task bar tray icons appear. The systems seems stable. When I open Windows Explorer and click "desktop" in the folder treeview, the cursor immediately jumps back to the previously selected item. No error. Same when clicking on my user's profile or my documents. When I try "save as" in, say, Notepad, nothing happens, the dialog box (which defaults to "my documents") doesn't even show. Again, no error. Nothing serious afaict in the event log. Typing something Start Search shows "Search failed to initialize". Anybody ever encountered such abomination?

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• SmartSVN - Unable to create new repository profile

  - by Sandeepan Nath

  I have just installed SmartSVN on this fedora system. The application starts (on running ./smartsvn.sh) with its usual UI but many things are not working. Creating New repository profile Trying to create a new repository profile (Repositories- Repository Profiles- Add) An Error occurred while processing an SVN command - Cannot connect to 'svn+ssh://192.168.0.103': There was a problem while connecting to 192.168.0.103:22 Quick Checkout Trying to do Quick Checkout (less configuration) An Error occurred while processing an SVN command - Malformed XML. Some Observations When I run the smartsvn.sh file like this:- ./smartsvn.sh It shows this in the console - Warning: /bin/java does not exist Could not lock /root/.smartsvn/_lock_ Switched to running instance I was using SmartSVN in another system before this where it was working. There too, it was showing the warning like Warning: /bin/java does not exist but this part was not showing:- Could not lock /root/.smartsvn/_lock_ Switched to running instance I have only JRE installed in both the systems and not JDK. So, what could be the reason? Any pointers? Thanks, Sandeepan

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• Delay between printing via lp in opensuse

  - by adamweeks

  I am experiencing a 10-15 second delay when printing multiple documents to a barcode printer in opensuse. I have had the same setup on other systems with older versions of opensuse without any issue. The setup is as follows: The print queue is setup as a "generic with driver Raw Queue". The files being sent down to the printers are simple text files with the lp command: lp -dprinter1 /path/file The printer is a JetDirect compatible device (Intermec brand) with a standard 9100 port socket setup. If I send a multi-page document to the printer, it will print nonstop the multiple pages. If I send 2 or more text files down via separate "lp" commands, the delay will be there between each printout. I've tried multiple different printers and they all experience the same issue.

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• 64bit or 32bit Linux system?

  - by Milan Babuškov

  I have a server that has 4GB of RAM. On it, I have installation of 32bit Slackware Linux 12.1. Of course, it is not using all of 4GB of RAM. I'd soon like to increase the RAM to 8GB, and am looking for a way for the system to use it. The system is used as a database server and is under high load during the day. AFAICT, I have two options: stay with 32bit and rebuild the kernel and lose some performance. Or go with 64bit and reinstall everything. Looking at 64bit versions of Slackware, I could run -current or Slamd64. Now, on to the questions: Should I stay with 32bit or go with 64bit? If I go 64bit, should I use -current or Slamd64? P.S. I hope to get answers from someone actually using any of these configurations in production, not just copy/paste something I could find myself via Google.

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• Need help trouble shooting Https webserver error - SSL Handshake failed

  - by DerNalia

  I followed this guide: http://hints.macworld.com/article.php?story=20041129143420344 Here is my virtual host definition <VirtualHost *:443> SSLEngine on SSLProxyEngine On RequestHeader set Front-End-Https "On" CacheDisable * SSLCipherSuite ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL DocumentRoot "/Users/me/projects/myproject/public" ServerName ssl.mydomain.com ServerAlias *.ssl.mydomain.com SSLCertificateKeyFile "/private/etc/apache2/certs/webserver.nopass.key" SSLCertificateFile "/private/etc/apache2/certs/newcert.pem" SSLCACertificateFile "/private/etc/apache2/certs/demoCA/cacert.pem" SSLCARevocationPath "/private/etc/apache2/certs/demoCA/crl" ErrorLog "/Users/me/Desktop/ssl.log" ProxyPass / https://localhost:3002/ ProxyPassReverse / https://localhost:3002 ProxyPreserveHost on </VirtualHost> And when I try connecting to the sevre viov the web browser, I get this error: [Thu Feb 02 16:50:40 2012] [error] (502)Unknown error: 502: proxy: pass request body failed to 127.0.0.1:3002 (localhost) [Thu Feb 02 16:50:40 2012] [error] [client 96.11.81.39] proxy: Error during SSL Handshake with remote server returned by /session/new [Thu Feb 02 16:50:40 2012] [error] proxy: pass request body failed to 127.0.0.1:3002 (localhost) from 96.11.81.39 () how do I debug / fix this?

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• qemu command not running directly

  - by Dr. Death

  Can I use "qemu://localhost/system " command directly inplace of "virsh -c qemu://localhost/system " command if my both machines are physically connected in a network as virsh will simply creating the virtual shell between two systems? can I use ssh in place of virtual shell here? I tried this but system gives no directory or file name for qemu even when i had qemu installed properly in my system. but when i use virsh i did not get such errors. Do i need to open any unix socket for doing this?

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• How to kill this two dialog box for ever permanently in Ubuntu?

  - by YumYumYum

  How to permanently forever remove this 2 dialog boxes from my setup? There are two dialog box very disturbing reason why Ubuntu is becoming disturbing OS. no way to remove them nor it gives any option to kill it. Any idea please how to remove this two dialog boxes completely from my systems? Which appears time time without my wish, like virus, i just dont want to keep those dialog box showing up annoyingly. NOTE: None of the answers and follow up helped to solve that which was asked here: http://askubuntu.com/questions/186312/how-to-remove-permanently-those-error-prompts-while-using-openbox-gnome

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• Should I install Windows Management Framework 3.0?

  - by Massimo

  I'm posting this as a BIG CAVEAT to everyone. I know it's not a standard Q&A, but I think this is someone every Windows admin should know. There is a very real risk of falling into Big Troubles. Microsoft has recently released Windows Management Framework 3.0 for Windows Server 2008 and Windows Server 2008 R2 systems, which includes some nice things native to Windows Server 2012 (like PowerShell 3.0) and lots of improvements to WMI, WinRM and other management technologies. Windows Update is advertising it as an optional update. Should I install it on my servers?

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• How can I compare two directories to compare missing files, when the directories don't have the same structure?

  - by David Dean

  I've been sent a HDD of new and updated files from an organisation that we are working with, but we already have most of the files sitting on our servers, and would like to update our local versions to match theirs. Normally, this would be a job for something like rsync, but our problem is that the directory structure they provide is very poorly organised and we've had to rearrange their files in the past to work best with our systems. So, my question is: How can I find out which files in the set they have provided are new or different to the versions that we have, when the directory structures are different? Once that question is answered, we can update the changed files, and work out where to put the new files on our system, probably somewhat manually.

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• Server 2008 R2 How to Change Windows 7 Basic Theme Color

  - by Wes Sayeed

  We're deploying thin clients connecting to a terminal server farm. The computers have high visibility to the public and I would like them to at least look presentable and not like something out of 1995. So I installed the Desktop Experience feature and enabled the Theme service. The server will not support Aero because it has no 3D graphics, but we can enable the Windows 7 Basic theme, which has the Aero look without the 3D effects. The problem with that theme is that you can select any window color you want, as long as it's baby boy blue. Is there a way to make those windows another color? The window color controls do nothing.

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• Where can I find a useful Unicode fallback font for Mac OS X?

  - by Stephen Jennings

  On every browser I've tried (Firefox, Safari, Chrome, and Omniweb), when I go to a web page containing somewhat less-common characters, I can't see the glyphs. For example, on the Wikipedia page for the Bengali Language, the very first line contains a string of squares; on Windows, I can see the Bengali writing. On Windows, as long as I have the Arial Unicode MS font installed, these characters fall back to that font and display properly. Mac OS X doesn't seem to ship with a font containing these Unicode characters (it has Arial Unicode MS, but it must be a subset of the Windows version because Bengali doesn't display in that font). I checked on my Snow Leopard DVD and I installed "Additional Fonts" from the Optional Installs package, but I'm still missing many languages. Is there any good, free font that contains a large collection of languages? I know creating fonts is difficult and time-consuming, but it seems like including at least one font like this with operating systems should be standard by now.

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• MacBook can't use internet, but nslookup and ping both work

  - by Joel Coehoorn

  I have a user with a new high-end MacBook Pro that can't use the internet. He can connect to either our wired or wireless network and do things like browse file shares, but can get no further. When I brought the machine in for testing, I found that I could do an nslookup just fine, and I'm able to ping addresses returned by nslookup just fine. I'm even able to bring up web pages by entering the IP address into the address bar directly. However, when I try to ping the domain name rather than the IP address, it just sits there. So apparently I can either do name resolution or communicate with an address, but not both at the same time. Again, these symptoms occur on both the wired and wireless network. Other machines on our network, including a few other Macs, don't have this issue. Any ideas?

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• How to manage credentials on multiserver environment

  - by rush

  I have a some software that uses its own encrypted file for password storage ( such as ftp, web and other passwords to login to external systems, there is no way to use certificates ). On each server I've several instances of this software, each instance has its own password file. At the moment number of servers is permanently growing and it's getting harder and harder to manage all passwords on all instances up to date. Unfortunately, some servers are in cegregated network and there is no access from them to some centralized storage, but it works vice versa. My first idea was to create a git repository, encrypt each password with gpg and store it there and deliver it within deployment system, but security team was not satisfied with this idea and as it is insecure to store passwords in repository even in encrypted view ( from their words ). Nothing similar comes to my mind. Is there any way to implement safe and secure password storage with minimal effort to manage all passwords up-to-date? ps. if that matters I've red hat everywhere.

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