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  • Postfix tutorial inconsistency

    - by Desmond Hume
    I'm following this tutorial to setup a Postfix/Dovecot mail server with Postfix Admin as a web front end. As regards directory structure for virtual mail users, the author of the tutorial writes: Virtual mail users are those that do not exist as Unix system users. They thus don't use the standard Unix methods of authentication or mail delivery and don't have home directories. That is how we are managing things here: mail users are defined in the database created by Postfix Admin rather than existing as system users. Mail will be kept in subfolders per domain and account under /var/vmail - e.g. [email protected] will have a mail directory of /var/vmail/example.com/me. But when he gives instructions about configuring Postfix Admin, he suggests this to be contained by Postfix Admin's config.inc.php: // Mailboxes // If you want to store the mailboxes per domain set this to 'YES'. // Examples: // YES: /usr/local/virtual/domain.tld/[email protected] // NO: /usr/local/virtual/[email protected] $CONF['domain_path'] = 'NO'; Is there an inconsistency?

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  • bash script with permanent ssh connection

    - by samuelf
    I use a bash script which runs /usr/bin/ssh -f -N -T -L8888:127.0.0.1:3306 [email protected] However, when I run the bash script, it waits.. I see the connection coming up but the script doesn't exit.. it's like it's waiting for the SSH process to finish, because when I manually kill it the bash script finishes as well. Any ideas how to resolve this? UPDATE: I have croned this script.. and the cron process is the one that becomes a zombie.. the actual scripts runs just fine, sorry about that, with ps -auxf I get: root 597 0.0 0.7 2372 912 ? Ss Jul12 0:00 cron root 2595 0.0 0.8 2552 1064 ? S 02:09 0:00 \_ CRON 1001 2597 0.0 0.0 0 0 ? Zs 02:09 0:00 \_ [sh] <defunct> 1001 2603 0.0 0.0 0 0 ? Z 02:09 0:00 \_ [cron] <defunct> and when I kill the ssh the defuncts disappear.. why would they become defunct?

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  • cPanel WHM virtualhost sample

    - by Prix
    Hi, Could anyone possible post a virtual host sample from a working httpd server, if possible with the most features enabled (like suPHP, suExec, php directives such as engine on off and others) ? The reason is that i wanted to see how it is formarted, and built per vhost... it's been a long time i dont use cPanel nor have it available so i can't really get it, i've been googling for it but havent found it at all. Much appreciated.

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  • network latency, TCP and UDP packets

    - by user115848
    Hello recently my network has started to cause me lots of problems. I have a cable modem, connected to a tp-link router (with some port forwarding). Everything was working fine then i started to get lots of udp (port 53) "UNREPLIED" logs in the router. Now there are tcp UNREPLIED logs too. This is causing lots of latency and failed connections when trying to connect to different internet sites. Also, we run an openfire server for spark connections, and I believe its causing connectivity issues for some users who are trying to connect using Spark (some people connect fine, others don't). Please see screen shot below for packet logs. It has to be something internally, as I connected straight to the comcast modem and i was able to connect to the internet and various sites as normal. I tried to swap out the router with a different and got the same issue. I scanned both my internal dns servers for viruses or malware and it came up empty. Another anomaly is that when i try to connect to www.cnn.com, i get redirected to the different site. I scanned my own machine for hijacks. Not sure if this is related to the networking issue. Please let me know if you have any ideas for troubleshooting.

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  • Gedit opens on all workspaces?

    - by debug
    Im using Fedora 10 with XFCE. Every time I open Gedit, it opens a instance on every workspace. The circle icon on my window border is selected (meaning, enabled on all workspaces). When I disable it to appear on one workspace, then close and restart, Gedit opens normal (current workspace). Question is: How to keep this current configuration? If I restart my system, and start up Gedit, it appears on all workspaces again.

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  • How Do I Properly Run OfflineIMAP in a Crontab

    - by alharaka
    Installed Fedora. # cat /etc/redhat_release | awk ' { print F "> " $0; print ""; }' Fedora release 14 (Laughlin) Installed offlineimap from yum, cuz I'm lazy these days. # yum info offlineimap | awk ' { print F "> " $0; print ""; }' Loaded plugins: langpacks, presto, refresh-packagekit Adding en_US to language list Installed Packages Name : offlineimap Arch : noarch Version : 6.2.0 Release : 2.fc14 Size : 611 k Repo : installed From repo : fedora Summary : Powerful IMAP/Maildir synchronization and reader support URL : http://software.complete.org/offlineimap/ License : GPLv2+ Description : OfflineIMAP is a tool to simplify your e-mail reading. With : OfflineIMAP, you can read the same mailbox from multiple : computers. You get a current copy of your messages on each : computer, and changes you make one place will be visible on all : other systems. For instance, you can delete a message on your home : computer, and it will appear deleted on your work computer as : well. OfflineIMAP is also useful if you want to use a mail reader : that does not have IMAP support, has poor IMAP support, or does : not provide disconnected operation. And, lo and behold, every time I run offlineimap and try to redirect output in a crontab, it does not work. Below is my .offlineimaprc. [general] ui = TTY.TTYUI accounts = Personal, Work maxsyncaccounts = 3 [Account Personal] localrepository = Local.Personal remoterepository = Remote.Personal [Account Work] localrepository = Local.Work remoterepository = Remote.Work [Repository Local.Personal] type = Maildir localfolders = ~/mail/gmail [Repository Local.Work] type = Maildir localfolders = ~/mail/companymail [Repository Remote.Personal] type = IMAP remotehost = imap.gmail.com remoteuser = [email protected] remotepass = password ssl = yes maxconnections = 4 # Otherwise "deleting" a message will just remove any labels and # retain the message in the All Mail folder. realdelete = no [Repository Remote.Work] type = IMAP remotehost = server.company.tld remoteuser = username remotepass = password ssl = yes maxconnections = 4 I have tried TTY.TTYUI, NonInteractive.Quiet and NonInteractive.Basic with different variations. With or without redirection, the crontab entries I try cause problems. $ crontab -l | awk ' { print F "> " $0; print ""; }' */5 * * * * offlineimap >> ~/mail/logs/offlineimap.log 2>&1 */5 * * * * offlineimap I always get the same damn error ERROR: No UIs were found usable!. What am I doing wrong!?

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  • Postfix smtp error 450 (failed to add recipient)

    - by culter
    I have debian server with postfix and roundcube. After an attack we are on 2 blacklists, but I don't think that this is the main problem. I can't send mail to any address. I tried to find the cause...I checked var/spool/postfix/etc/resolv.conf and resolv.etc and they're the same with this content: nameserver 127.0.0.1 nameserver localhost In var/log/mail.err I found: cyrus/imap[25452]: DBERROR: opening /var/lib/cyrus/user/m/[email protected]: cyrusdb error cyrus/imap[25452]: DBERROR: skiplist recovery /var/lib/cyrus/user/m/[email protected]: ADD at 1FC0 exists When I try to send email from roundcube, I get the message from title. When I send it within opera or any other mail client, It gives nothing, but email is'nt sended. Thank you for any advice.

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  • Bash Script to Compress / Transfer / Remove Log Files

    - by Jason
    I am currently using chronolog to set log file names for Apache with date. They are in the following format: /WEB/LOGS/APACHE_ACCESS_YYYY-MM-DD.log /WEB/LOGS/APACHE_ERROR_YYYY-MM-DD.log I would like to have a script that runs on the first of every month and compresses the log files from the previous month, transfers them to another host (via SCP) and then deletes the compressed file. find . -name '*.log' -mtime +1 -type f I've found several examples like the one above that allow you to select files x days old, but I need all files from the previous month. I am the first to admit my bash scripting skills are weak so would really appreciate any help and guidance.

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  • Ubuntu - Create a link to a specified directory so I can easily change to that directory

    - by Denby
    Is it possible to create a symlink to a directory, like /var/lib/tomcat6/webapps/MyWar that I can access from everywhere? I want to be able to say cd myapp from anywhere in the directory tree and go to that directory. Is it only possible in the directory where I create the symlink? Do I have to update my ~/.bashrc file to include an alias like: alias myapp="cd /var/lib/tomcat6/webapps/MyWar" and then just type myapp from anywhere? What is the best way to handle this situation so I don't always have to type in the long directory? I also want to be able to use that parameter in say a copy command, so the alias wouldn't help in that situation. Hopefully I can do something similar where ~ maps to the home directory in any command.

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  • Very slow disk performance on Dell PowerEdge 2950 w/ PERC 6/i running RAID 10

    - by vocoder
    I recently set up a server running Ubuntu 10.04 LTS on a Dell PowerEdge 2950 server - it has 6 500 gb 7200RPM SATA drives setup in a RAID 10 config. I am seeing extremely poor disk performance - the RAID array reports all disks are normal and using MegaCLI, it looks like the BBU is fine. hdparm -tT /dev/sda reports: Timing cached reads: 90 MB in 2.05 seconds = 43.96 MB/sec Timing buffered disk reads: 24 MB in 3.11 seconds = 7.72 MB/sec So as you can see, it takes forever to something as simple as an apt-get upgrade and even logging into the server. How do I go about troubleshooting what is causing this? I upgraded the firmware on the PERC 6i RAID controller to the latest, but didn't see any improvements.

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  • Remote Yum mirror

    - by specto
    I have a bunch of remote computers that must be updated to the most recent packages for RedHat 4 and RedHat 5. I am using mrepo to mirror the RHN packages, however the remote computers do not have an internet connection. Because of this I have to update the mirror server that is part of the remote computers with a dvd. This is to cut down shipping costs to just a dvd. I am attempting to script this so I can fit all of the new packages on a CD or a DVD. I send updates about once or twice a month depending on package requirements. So my question is, is their a good method to do this so that the only things transferred are the new packages? I wish I could just use rsync. Thanks.

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  • Bash command substitution not working as expected

    - by Joe Fruchey
    I'd like to view the last few lines of a file, but I want the columns aligned. Basically, I want to disable wordwrap. This is straightforward with: tail $FILE | cut -c -80 But I'm trying to generalize my script for other users, and I'd like to cut to the actual terminal width, which I can get with: stty size | cut -d" " -f2 So I would imagine that I could just tail $FILE | cut -c -`stty size | cut -d" " -f2` but it doesn't work: stty: standard input: Invalid argument cut: invalid range with no endpoint: - Try `cut --help' for more information. (Same results with the 'new' $() expansion.) Now, if I echo it, it seems fine: echo cut -c -`stty size | cut -d" " -f2` cut -c -103 Am I just missing an escape char? Or is this somehow just not possible? Thanks.

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  • Vserver still interesting ?

    - by Kartoch
    I was using Vserver a long time ago. But since the last stable release (2007), BSD jails are offering many more functionalities. It is not clear if Vserver has still a future (still some development on it). have you dump (ou keep) vserver for your production servers ? For which reasons ?

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  • How do i set up a fully featured small business network?

    - by JoshReedSchramm
    This has the possibility to be a very large question but I recently acquired a few rack mount servers and the hardware necessary to run them. Unfortunately I'm a programmer with very little understanding of how to set up a good working network so I'm hoping someone on here might be able to help. What I want to do is run a domain with a series of subdomains which would all be externally accessible. The setup would live inside my home and my internet connection is your run of the mill cable model (which means a dynamic IP) I want to be able to set up a couple site, specifically: www.mycompany.com (mycompany.com with no subdomain would redirect to this) build.mycompany.com (for my continuous integration server) ruby.mycompany.com (for ruby projects) win.mycompany.com (for windows project) etc. Additionally this is still my home network so our personal machines need to be able to get on via wifi with at least the same security we have now through an out of the box router from best buy. I'm thinking i need a DNS server, DHCP server and one of those would run either no-ip or dyndns to accommodate the dynamic ip. I don't necessarily need mail but it might be helpful to have some sort of mail server i could use for testing, it doesn't need to get out to the greater internet though. So how do i set up this kinda of network? tl;dr Need to know how to set up your standard office style network in my home off my normal consumer level cable modem connection.

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  • ifcf-ethx problem

    - by Shahmir Javaid
    Every time i run service networkd restart This is what i get Shutting down interface eth0: Device state: 3 (disconnected) [ OK ] Shutting down interface eth1: [ OK ] Shutting down loopback interface: Error org.freedesktop.NetworkManagerSettings.InvalidConnection: ifcfg file '/etc/sysconfig/network-scripts/ifcfg-lo' unknown Error org.freedesktop.NetworkManagerSettings.InvalidConnection: ifcfg file '/etc/sysconfig/network-scripts/ifcfg-lo' unknown Error org.freedesktop.NetworkManagerSettings.InvalidConnection: ifcfg file '/etc/sysconfig/network-scripts/ifcfg-lo' unknown Error org.freedesktop.NetworkManagerSettings.InvalidConnection: ifcfg file '/etc/sysconfig/network-scripts/ifcfg-lo' unknown [ OK ] Bringing up loopback interface: Error org.freedesktop.NetworkManagerSettings.InvalidConnection: ifcfg file '/etc/sysconfig/network-scripts/ifcfg-lo' unknown Error org.freedesktop.NetworkManagerSettings.InvalidConnection: ifcfg file '/etc/sysconfig/network-scripts/ifcfg-lo' unknown Error org.freedesktop.NetworkManagerSettings.InvalidConnection: ifcfg file '/etc/sysconfig/network-scripts/ifcfg-lo' unknown Error org.freedesktop.NetworkManagerSettings.InvalidConnection: ifcfg file '/etc/sysconfig/network-scripts/ifcfg-lo' unknown [ OK ] Bringing up interface eth0: ** (process:12951): WARNING **: fetch_connections_done: error fetching user connections: (2) The name org.freedesktop.NetworkManagerUserSettings was not provided by any .service files. Active connection state: activating Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/1 state: activated Connection activated [ OK ] Here is my ifcfg-eth0 # Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller DEVICE=eth0 BOOTPROTO=dhcp DEFROUTE=yes DHCPCLASS= HWADDR=xxx IPV4_FAILURE_FATAL=yes IPV6INIT=no ONBOOT=yes OPTIONS=layer2=1 PEERDNS=yes PEERROUTES=yes TYPE=Ethernet UUID=xxx And my ifcfg-eth1 # Intel Corporation 82541PI Gigabit Ethernet Controller DEVICE=eth1 HWADDR=xxx ONBOOT=no And my ifcfg-lo DEVICE=lo IPADDR=127.0.0.1 NETMASK=255.0.0.0 NETWORK=127.0.0.0 # If you're having problems with gated making 127.0.0.0/8 a martian, # you can change this to something else (255.255.255.255, for example) BROADCAST=127.255.255.255 ONBOOT=yes NAME=loopback Any ideas?

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  • Application to store/browse/view photos?

    - by amorfis
    I am looking for application which I can install on Ubuntu server and put my photos there. It can be by web interface, it can be by mounted samba disk. What I require: Ability to add tags to photos. Ability to move photos. I.e. if I set photos directory to /home/photos, but then I want to move all photos to e.g. /home/common/photos - I don't want to lose all the tags. I used to use FSpot and it was great, but it lacked point 2, and I lost everything :(

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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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  • 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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  • Noob proftpd questions

    - by Camran
    I have setup my VPS pretty much now, and want to upload some basic files to the server. How is this done in Ubuntu 9.10? I have PuTTY and use the terminal there... Is there any ftp program, like in regular managed hostings, to just upload files with? I was thinking about proftpd, but don't have a clue how to get it to work. I am using my home-laptop with windows xp to command the VPS. Thanks

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  • Noob proftpd questions

    - by Camran
    I have setup my VPS pretty much now, and want to upload some basic files to the server. How is this done in Ubuntu 9.10? I have PuTTY and use the terminal there... Is there any ftp program, like in regular managed hostings, to just upload files with? I was thinking about proftpd, but don't have a clue how to get it to work. I am using my home-laptop with windows xp to command the VPS. Thanks

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  • Redhat cpanel how to limit cpu for a perticular user.

    - by Ahmed M Fituri
    Hello, I have a web server with multiple users in it. one of these users uses mambo, and the cpu usage of this user is more than 90% which leads to a very slow performance of the machine, I have installed cpulimit version 1.1. but there is no particular command that limits the cpu per user. I need to limit this user for at least 50% . please help me ASAP. Thank you.

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