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• How to configure vmware in this situation?

  - by Yousui

  Hi guys, Now I'm using a router to connect my computer to the Internet. I installed VMware Workstation 7 on my computer and installed a guest OS which is CentOS 5.3. Now I want to using putty to connect to the guest OS in my host computer, and I need the guest os can access the Internet too. How can I configure my host's network, guest os and my router? I have little knowledge about network, can you guys give me a step by step direction or something similar? Great thanks!

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• postfix: Temporary lookup failure for FQDN

  - by Thufir

  I'm using the FQDN of dur.bounceme.net which I want to resolve(?) to localhost. That is, I want mail to [email protected] to get delivered to user@localhost. I've tried following the Ubuntu guide on this and seem to be going in circles a bit. root@dur:~# root@dur:~# postfix stop postfix/postfix-script: stopping the Postfix mail system root@dur:~# postfix start postfix/postfix-script: starting the Postfix mail system root@dur:~# telnet dur.bounceme.net 25 Trying 127.0.1.1... telnet: Unable to connect to remote host: Connection refused root@dur:~# root@dur:~# telnet localhost 25 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 220 dur.bounceme.net ESMTP Postfix (Ubuntu) ehlo dur 250-dur.bounceme.net 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN mail from:[email protected] 250 2.1.0 Ok rcpt to:[email protected] 451 4.3.0 <[email protected]>: Temporary lookup failure rcpt to:thufir@localhost 451 4.3.0 <thufir@localhost>: Temporary lookup failure quit 221 2.0.0 Bye Connection closed by foreign host. root@dur:~# root@dur:~# grep telnet /var/log/mail.log Aug 28 00:24:45 dur postfix/smtpd[18256]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 451 4.3.0 <thufir@localhost>: Temporary lookup failure; from=<[email protected]> to=<thufir@localhost> proto=ESMTP helo=<dur> Aug 28 00:24:58 dur postfix/smtpd[18256]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 451 4.3.0 <[email protected]>: Temporary lookup failure; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<dur> Aug 28 00:54:55 dur postfix/smtpd[18825]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 451 4.3.0 <[email protected]>: Temporary lookup failure; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<dur> Aug 28 00:55:08 dur postfix/smtpd[18825]: NOQUEUE: reject: RCPT from localhost[127.0.0.1]: 451 4.3.0 <thufir@localhost>: Temporary lookup failure; from=<[email protected]> to=<thufir@localhost> proto=ESMTP helo=<dur> root@dur:~# root@dur:~# postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases append_dot_mydomain = no biff = no broken_sasl_auth_clients = yes config_directory = /etc/postfix default_transport = smtp home_mailbox = Maildir/ inet_interfaces = loopback-only mailbox_command = /usr/lib/dovecot/deliver -c /etc/dovecot/conf.d/01-mail-stack-delivery.conf -m "${EXTENSION}" mailbox_size_limit = 0 mailman_destination_recipient_limit = 1 mydestination = dur, dur.bounceme.net, localhost.bounceme.net, localhost myhostname = dur.bounceme.net mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 readme_directory = no recipient_delimiter = + relay_domains = lists.dur.bounceme.net relay_transport = relay relayhost = smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtp_use_tls = yes smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_path = private/dovecot-auth smtpd_sasl_security_options = noanonymous smtpd_sasl_type = dovecot smtpd_tls_auth_only = yes smtpd_tls_cert_file = /etc/ssl/certs/ssl-mail.pem smtpd_tls_key_file = /etc/ssl/private/ssl-mail.key smtpd_tls_mandatory_ciphers = medium smtpd_tls_mandatory_protocols = SSLv3, TLSv1 smtpd_tls_received_header = yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes tls_random_source = dev:/dev/urandom transport_maps = hash:/etc/postfix/transport root@dur:~#

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• extract recipient addresses from mailer-daemon messages

  - by Frank Peixoto

  I need generate and email to a mailing list administrator a list of email addresses that have generated a bounceback message, to allow him to clean up the mailing list. A separate mailbox will be dedicated to receiving those messages, so I need to extract the recipients that have bounced. What's the easiest way to extract those from the mail file for that special mailbox?

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• Install GD Library for PHP in GoDaddy VPS with CentOS???

  - by Arun David

  When I tried to install php-gd library in my GoDaddy VPS with CentOS, It gives: $ yum install php-gd Loaded plugins: fastestmirror Determining fastest mirrors addons                                                    | 951 B     00:00 base                                                      | 2.1 kB     00:00 extras                                                    | 2.1 kB     00:00 update                                                    | 1.9 kB     00:00 Excluding Packages in global exclude list Finished Setting up Install Process No package php-gd available. Nothing to do

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• How to manage mounted partitions (fstab + mount points) from puppet

  - by Cristian Ciupitu

  I want to manage the mounted partitions from puppet which includes both modifying /etc/fstab and creating the directories used as mount points. The mount resource type updates fstab just fine, but using file for creating the mount points is bit tricky. For example, by default the owner of the directory is root and if the root (/) of the mounted partition has another owner, puppet will try to change it and I don't want this. I know that I can set the owner of that directory, but why should I care what's on the mounted partition? All I want to do is mount it. Is there a way to make puppet not to care about the permissions of the directory used as the mount point? This is what I'm using right now: define extra_mount_point( $device, $location = "/mnt", $fstype = "xfs", $owner = "root", $group = "root", $mode = 0755, $seltype = "public_content_t" $options = "ro,relatime,nosuid,nodev,noexec", ) { file { "${location}/${name}": ensure => directory, owner => "${owner}", group => "${group}", mode => $mode, seltype => "${seltype}", } mount { "${location}/${name}": atboot => true, ensure => mounted, device => "${device}", fstype => "${fstype}", options => "${options}", dump => 0, pass => 2, require => File["${location}/${name}"], } } extra_mount_point { "sda3": device => "/dev/sda3", fstype => "xfs", owner => "ciupicri", group => "ciupicri", $options = "relatime,nosuid,nodev,noexec", } In case it matters, I'm using puppet-0.25.4-1.fc13.noarch.rpm and puppet-server-0.25.4-1.fc13.noarch.rpm.

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• how to wrap the command1 return strings with single/double quotation marks (\'or\") to feed to the next command2?

  - by infantcoder

  For example, I want to use mplayer to play the music of several dirs, type like this in bash: $find './l_music/La Scala Concert 03 03 03' './l_music/Echoes The Einaudi Collection' './l_music/Ludovico Einaudi - The Royal Albert Hall Concert [2 CD] (2010)' -name '*.mp3' | xargs mplayer Well, You Know, the find command return path, which dir and file always have space, the pipe right command mplayer do not accept those mp3 path. I think that if wrap the find return strings with single/double quotation marks (\'or\") to feed to mplayer, the problem will be solved. But how can I do to solve the problem just use bash command, do not use bash or perl scripts, while can give me one perl line command use Perl Command-Line Options.

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• Permission denied error while import to remote repository via svn...

  - by Usman Ajmal

  Hi I am importing my project to another machine on my LAN to the directory: /srv/svn/repos/my-repo where my-repo was created via svnadmin create option The permissions of /srv/svn/repos/my-repo are drwxr-xr-x 6 svn svn 4096 2010-04-19 17:30 my-repo I executed following command to import myProject files to my-repo on remote system sudo svn import -m "First import" myProject svn+ssh://[email protected]/srv/svn/repos/my-repo This command started 'Adding' files but gave following error after 'Adding' 7 files svn: Can't open file '/srv/svn/repos/baltoros-valgrind/db/txn-current-lock': Permission denied Any idea whats going on...? Thanks a lot

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• Adding a jar file to CLASSPATH is still not executable

  - by Simon O'Hanlon

  Perhaps I just don't understand how the whole CLASSPATH environment variable works when trying to find .jar files on your system. I thought if you specified it, you could launch .jar files with java in much the same way that you can launch executables that are on your path. I have an executable java archive (.jar file) on my system, that I stuck in /usr/local/bin/gatk/. I added this to my CLASSPATH via: export CLASSPATH=/usr/local/bin/gatk/GenomeAnalysisTK.jar I thought this would make the .jar file visible to my JVM. When I try to invoke it with java -jar GenomeAnalysisTK.jar #Error: Unable to access jarfile .gatk/GenomeAnalysisTK.jar I can invoke it setting the absolute path, e.g. java -jar /usr/local/bin/gatk/GenomeAnalysisTK.jar, however I'd rather not type the full path each time. I have read many of the linked tutorials but somehow I don't seem to be getting this right and I can't understand what I am doing wrong.

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• Mac can write to samba share

  - by David

  I have a samba share that works fine for PCs, but we have a mac user who seems to only be able to edit and rename existing files, he cannot add new files. Any ideas? Here is the share setup: path = /media/freeagent/officeshare read only = No guest ok = Yes writeable = yes public = yes

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• Regenerating /usr/share/locale/

  - by jbjuly

  Is there a way to regenerate deleted locale on /usr/share/locale without downloading the application again?

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• How to set up an FTP user on UBUNTU 9 server using vsftpd utility?

  - by Pavel

  Hi guys. I'm kinda new to this so bear with me. I've set up a server and now I need to create ftp user for it. I'm doing this by typing: useradd pavel passwd pavel And then I'm running iptables -I INPUT 1 -p tcp --dport 21 -j ACCEPT iptables-save > /etc/iptables.rules in order to open ftp ports and lastly, I'm changing the usermod by: usermod -s /bin/sh pavel So now tell me - what I'm doing wrong here? I just want to connect using FTP protocol. Please help...

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• E: Internal Error, Could not perform immediate configuration (2) on libattr1 ? in Ubuntu

  - by user32178

  Hi, I am working with Ubuntu latest version. While installing via apt-get install i tried to abort that by pressing Ctrl+Z. It terminate successfully ;). But next time when i tried to use apt-get, i got some error "lock" and "temporally unavailable" something like that and **I unfortunately i delete the /var/lib/dkpg folder.** after that i cant install anything from apt-get, getting an error. E: Internal Error, Could not perform immediate configuration (2) on libattr1 so how can i solve this issue?

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• E: Internal Error, Could not perform immediate configuration (2) on libattr1 ? in Ubuntu

  - by user6679

  Hi, I am working with Ubuntu latest version. While installing via apt-get install i tried to abort that by pressing Ctrl+Z. It terminate successfully ;). But next time when i tried to use apt-get, i got some error "lock" and "temporally unavailable" something like that and **I unfortunately i delete the /var/lib/dkpg folder.** after that i cant install anything from apt-get, getting an error. E: Internal Error, Could not perform immediate configuration (2) on libattr1 so how can i solve this issue?

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• openSSL tutorial not fully working - Can sign but cannot restore original file

  - by djechelon

  I'm writing, and testing, a little tutorial for my groupmates involved in an openSSL homework. We have a bunch of PDF files, I'm the CA and each one should send me a signed PDF for me to be verified. I've told them to do the following (and tried to do it by myself) Request and obtain a certificate (I'll skip this part) Create a MIME message with the PDF file in it makemime -c "text/pdf" -a "Content-Disposition: attachment; filename=”Elaborato.pdf" Elaborato.pdf > Elaborato.pdf.msg Sign with openSSL openssl smime -sign -in Elaborato.pdf.msg -out Elaborato.pdf.p7m -certfile ca.pem -certfile nomegruppo.crt -inkey nomegruppo.key -signer nomegruppo.crt Verify with openssl smime -verify -in Elaborato.pdf.p7m -out Elaborato-verified.msg -CAfile ca.pem -signer nomegruppo.crt Extract attachment with munpack Elaborato-verified.msg View with Acrobat Reader The problem is that even if I get a file that (from its binary content) resembles a PDF file my current Ubuntu PDF viewer doesn't read it. The XXXElaborato.pdf extracted by munpack is a little bit smaller than the original. What's the problem with this procedure? In theory, they should send me the signed S/MIME message and I should be able to read the PDF within it. Why can't I restore the original content of the PDF file?

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• Hosting websites in our Workplace custom-built datacentre

  - by i.h4d35

  I'm faced with unique learning opportunity at work at the moment. Due to the slowdown (amongst other reasons), the powers that be at my office have decided to abandon our shared hosting providers (both shared and dedicated hosting) and have decided to host the websites at our office's datacentre. We're running 7 websites, wherein the average unique hits per day at the moment is about 900. We have 2 servers set aside for this - one is a DELL POWER EDGE 1850 (Intel Xeon 3 GHZ*2, 4GB RAM, 73GB HDD and the other is an HP DL 380 G3 (Intel Xeon 2.8 GHz, 6 GB RAM, 73 GB HDD) a) I would like to know the pros and cons of going ahead with this project.All the sites will be hosted on a single IP. In all probability, the OS is going to be CentOS. b) Do you think I should consider Virtualization into this equation (KVM/Xen)? I was thinking in terms of separate instances of the DB server and the frontend though I do not know if this is the best way to go. c) Should I be trying to use cloud stacks like OpenStack and try to make it look like websites hosted on some sort of Public Cloud? (something that I checked out here). Here is something else I came across, which looks similar to what needs to be done at our office. About the websites - Of the 7 websites, 4 are basic static websites which basically gives a whole lot of information about a few local institutions. The remaining 3 are local product-based websites developed in PHP wherein end user can view products and order them online. I am trying to take this as a learning experience wherein I can learn to build something from scratch and save the company a little something in the process. The migration needs to be completed by Easter so I guess it gives us some time (or am I being overly optimistic??). I am confused here and would appreciate all the help I can get. Thanks in advance.

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• How can I register a custom protocol with xdg ?

  - by julien

  I've been struggling this morning trying to associate an application with a custom protocol, namely emacsclient and org-protocol. I'm calling this protocol from a webbrowser bookmarklet, and I get the following behaviour : In chromium, the "Launch Application" dialog comes up, and calls xdg-open org-protocol://... which ends up firing a new chromium frame. In firefox, I've tried setting network.protocol-handler.app.org-protocol to an empty string or my emacsclient path, anyhow I get the following error message : "Firefox doesn't know how to open this address, because the protocol (org-protocol) isn't associated with any program" without even showing any external application selection dialog. I'm not using any desktop environment, so I need to make this work strictly with xdg, however, despite reading the shared mime info spec etc, I still can't fathom a working configuration.

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• Creating a tar file with checksums included

  - by wazoox

  Here's my problem : I need to archive to tar files a lot ( up to 60 TB) of big files (usually 30 to 40 GB each). I would like to make checksums ( md5, sha1, whatever) of these files before archiving; however not reading every file twice (once for checksumming, twice for tar'ing) is more or less a necessity to achieve a very high archiving performance (LTO-4 wants 120 MB/s sustained, and the backup window is limited). So I'd need some way to read a file, feeding a checksumming tool on one side, and building a tar to tape on the other side, something along : tar cf - files | tee tarfile.tar | md5sum - Except that I don't want the checksum of the whole archive (this sample shell code does just this) but a checksum for each individual file in the archive. I've studied GNU tar, Pax, Star options. I've looked at the source from Archive::Tar. I see no obvious way to achieve this. It looks like I'll have to hand-build something in C or similar to achieve what I need. Perl/Python/etc simply won't cut it performance-wise, and the various tar programs miss the necessary "plugin architecture". Does anyone know of any existing solution to this before I start code-churning ?

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• Memory cache Ubuntu 9.10 server x86 doesn't work as expected

  - by Matthijs

  We're using an Ubuntu 9.10 server to transfer Ghost-image files. We configured it only with Samba. And the DOS-clients connect to Samba. The latest updates are installed and so far the servers is running fine. When we image 10 pc's with the same image of 2 files of 2GB there's no disk activity. Everything is loaded in the RAM. There's 4GB in the server. But when we use 2 pc's with 2 different image files of 500 MB (8x) files then there's a lot of continuous disk activity. The speed is lower. So it seems that Ubuntu doesn't cache more then one big file. Are there settings to change this behaviour?

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• OpenAFS on Fedora/CentOS

  - by Michael Pliskin

  I am trying to see if OpenAFS fits my needs as a distributed filesystem and is a bit stuck. There are docs but they're all quite hard to understand, so asking for some expert advice here. My questions: which version to install? I need windows client support so I need 1.5 - right? But it is not stable.. Or is it? And don't see any pre-built rpms for it, so compiling from sources? tried to compile and it worked but it created a non-"mp" kernel module while my kernel needs an mp one - how to workaround that? do I really need a new fresh partition to start with or I can re-use an existing one and just make it available via afp? any nice HOWTOs around?

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• Locate All Emacs Autosaves and Backups in one folder

  - by Urda

  What do I need to add to my .emacs to get it to save all of my autosaves and backups into one directory? I don't do a lot of .emacs configuration, and I just can't get the variables out of emacsWiki to play right. Anybody mind sharing how they do it? I would prefer to have the saves placed in /tmp/emacs/{username}/{autosaves | backups} BONUS, configuration to do the same for TRAMP

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• Simultaneonus NX client connections

  - by Ja Sam

  I would like to have two separate NX connections for the same username going from one dual-monitor client to NX server. The idea is to get two separate same username KDE sessions. When I try to do it the most obvious way (by starting one NX client on each separate monitor), second connection just over takes the first one. Any idea on how to do this?

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• bash script - spawn, send, interact - commands not found error

  - by Sandeepan Nath

  I my shell script, I am trying to remove password prompt for scp command (as given in http://stackoverflow.com/questions/459182/using-expect-to-pass-a-password-to-ssh/459225#459225) and this is what I have so far :- #!/usr/bin/expect spawn scp $DESTINATION_PATH/exam.tar $SSH_CREDENTIALS':/'$PROJECT_INSTALLATION_PATH expect "password:" send $sshPassword"\n"; interact On running the script, I am getting errors spawn: command not found send: command not found interact: command not found I was also getting error expect: command not found also, then I realised the path to expect was not correct and expect was not installed at all. So, I did yum install expect, corrected the path and the error was gone. But not able to remove the other 3 errors still.

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• Why do I see the weird backspace behaviour on my shell sometimes?

  - by Lazer

  I use bash shell and sometimes all of a sudded, my Backspace key stops working (when this happens Ctrl + Backspace still works fine) I am not sure why this happens, but it also carries over to any vim sessions that I use from the shell. To my surprise, getting a fresh shell does not help, and the problem seems to go away as abruptly as it started. This is what the typed characters look like, each Backspace keypress is shown by a ^? on the shell $ cat filem^?namr^?e Does anybody have a clue what might be happening? How can I restore the normal behaviour?

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• Cannot Boot - Ubuntu 9.10

  - by c00lryguy

  I installed Ubuntu 9.10 from my laptop onto a HDD in an external harddrive enclosure. I could not connect online so I plugged it into another computer and updated the system. Now when I plugged it back into my laptop, I cannot boot. It says "ALERT! /dev/sdd1 does not exist. Dropping to shell!" and has a shell that says (initramfs)

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• autobench in ubuntu 8.10

  - by mamathahl

  Hi, I'm using ubuntu 8.10. I want to do benchmarking using autobench. I could install httperf by the command sudo apt-get install httperf I thought I should be installing autobench in the same way using apt-get. But the package was not found. Can anybody please suggest me what should I be doing in order make this "autobench" command work for me in ubuntu? Any help in this regard will be appreciated. Thanks in advance.

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