Sometimes you need to rebuild all your httpd.include files, it can be done with websrvmng command:
/usr/local/psa/admin/bin/websrvmng -av
Plesk rebuild Apache configuration files
January 4th, 2009 — Linux, Plesk
Rename command
December 23rd, 2008 — Linux, Shell
Rename it’s handy command from util-linux package when you need to rename multiple files. From the manual:
NAME
rename - Rename files
SYNOPSIS
rename from to file...
DESCRIPTION
rename will rename the specified files
by replacing the first occurrence of
from in their name by to.
...
Example usage:
[vitalie@silver london]$ ls -1 DSC00967.JPG DSC00968.JPG DSC00969.JPG DSC00970.JPG DSC00971.JPG [vitalie@silver london]$ rename DSC00 london_ *.JPG [vitalie@silver london]$ ls -1 london_967.JPG london_968.JPG london_969.JPG london_970.JPG london_971.JPG
Bind restricting recursion
December 23rd, 2008 — Linux, Plesk
If your server allows recursive queries it can be exploited by malicious users. It should be restricted only to ip addresses from your local nets.
To accomplish this, edit your /etc/named.conf and specify in “options” section which ACL are allowed to run recursive queries with allow-recursion option:
# /etc/named.conf acl localnets { 127.0.0.1; 192.168.0.0/24; }; options { ... allow-recursion { localnets; }; ... };
then restart bind server:
[root@red ~]# /etc/init.d/named restart Stopping named: . [ OK ] Starting named: [ OK ]
In Plesk it can be done from the Control Panel:
Server->DNS Settings->DNS Preferences->Allow recursion
and choose localhost or localnets.
How to disable IPv6 in RHEL, Fedora, CentOS
November 21st, 2008 — Linux
Open your /etc/modprobe.conf file and append:
# Turn off IPv6 alias net-pf-10 off alias ipv6 off
Then restart your server.
Lame servers messages
November 17th, 2008 — Linux
Lame server is when a NS record for a domain specifies a server which is not authoritative for that domain.
To keep your logs clean from lame server messages (/var/log/messages):
[...] Nov 16 15:10:50 srv named[99]: lame server resolving 'abc.com' (in 'abc.com'?): 1.2.3.4#53 Nov 16 15:10:50 srv named[99]: lame server resolving 'abc.com' (in 'abc.com'?): 1.2.3.4#53 Nov 16 15:10:50 srv named[99]: lame server resolving 'abc.com' (in 'abc.com'?): 1.2.3.4#53 Nov 16 15:10:50 srv named[99]: lame server resolving 'abc.com' (in 'abc.com'?): 1.2.3.4#53 Nov 16 19:43:25 srv named[99]: lame server resolving 'abc.com' (in 'abc.com'?): 1.2.3.4#53 Nov 16 19:43:25 srv named[99]: lame server resolving 'abc.com' (in 'abc.com'?): 1.2.3.4#53 [...]
Edit your /etc/named.conf and add:
logging { category lame-servers { null; }; };
Then restart bind daemon.
Howto enable antivirus for all accounts in Plesk
October 24th, 2008 — Linux, Plesk
To enable AntiVirus for all accounts in Plesk you can use the following script:
#!/bin/bash mysql -uadmin -p`cat /etc/psa/.psa.shadow` psa<<-EOT UPDATE mail SET virusfilter = 'any' WHERE postbox = 'true' AND virusfilter != 'any' EOT
You can run it daily from the cron to keep your mailboxes protected.
Nagios check_mailq: is not executable by uid 0
August 26th, 2008 — Linux
If you receive this error then your plugin needs patching:
ERROR: is not executable by (uid 0:gid(0 10 6 4 3 2 1 0))
The patch:
--- /usr/lib/nagios/plugins/check_mailq 2007-04-20 23:14:48.000000000 +0300 +++ check_mailq 2007-06-04 11:53:06.000000000 +0300 @@ -40,7 +40,7 @@ sub print_usage (); sub process_arguments (); -$ENV{'PATH'}=''; +$ENV{'PATH'}='/bin:/usr/bin'; $ENV{'BASH_ENV'}=''; $ENV{'ENV'}=''; $PROGNAME = "check_mailq"; @@ -49,6 +49,9 @@ $msg_p = 0 ; $state = $ERRORS{'UNKNOWN'}; +# +$utils::PATH_TO_QMAIL_QSTAT = "/var/qmail/bin/qmail-qstat"; + Getopt::Long::Configure('bundling'); $status = process_arguments(); if ($status){ @@ -63,7 +66,6 @@ alarm($opt_t); # switch based on MTA - if ($mailq eq "sendmail") { ## open mailq
Plesk password recovery
August 25th, 2008 — Linux, Plesk
If you forgot your admin password in Plesk, you’ll need to connect to your server with ssh and you can find the password in the file /etc/psa/.psa.shadow .
[root@apollo ~]# cat /etc/psa/.psa.shadow <admin_pass>
To find mailbox’s password in Plesk, connect to your server with ssh, then use the following SQL query to reveal mailbox password (replace MAILBOX_NAME with your mailbox name):
[root@apollo ~]# mysql -u admin -p`cat /etc/psa/.psa.shadow` psa [...] mysql> SELECT m.mail_name, d.name, a.password FROM mail AS m LEFT JOIN (domains AS d, accounts AS a) \ ON (m.dom_id = d.id AND m.account_id = a.id) WHERE m.mail_name='MAILBOX_NAME'
Howto install RMagick on CentOS 4
August 25th, 2008 — Linux, Ruby
RMagick is an interface between the Ruby programming language and the ImageMagick® and GraphicsMagick image processing libraries.
To install RMagick on CentOS 4 you’ll need to install RMagick version 1 because version 2 requires newer version of ImageMagick that’s not available in CentOS 4 repositories.
I do assume that you already have installed RubyGems. If not, then read my post Install RubyGems on CentOS 4.
Let’s start by installing required libraries:
[root@lion ~]# yum install gcc gcc-c++ ImageMagick-devel ghostscript freetype-devel \ libjpeg-devel libpng-devel libpng10-devel libwmf-devel libexif-devel libtiff-devel [...]
Then install RMagick gem specifying version with ‘-v’ switch:
[root@lion ~]# gem install rmagick -v 1.15.14 Building native extensions. This could take a while... Successfully installed rmagick-1.15.14 1 gem installed
Using squirrelmail in Plesk
August 2nd, 2008 — Linux, Plesk
Configuring apache for squirrelmail following this tutorial is not enough. You’ll need to configure squirrelmail too. Edit your /etc/squirrelmail/config_local.php file and paste the following configuration:
// courier-imap settings $imap_server_type = 'courier'; $default_folder_prefix = 'INBOX.'; $trash_folder = 'Trash'; $sent_folder = 'Sent'; $draft_folder = 'Drafts'; $show_prefix_option = false; $default_sub_of_inbox = false; $show_contain_subfolders_option = false; $optional_delimiter = '.'; $delete_folder = true; $force_username_lowercase = false; // other settings $default_charset = 'iso-8859-1'; $lossy_encoding = false; $sendmail_args = '-i -t'; $encode_header_key = ''; $hide_auth_header = false; $plugins[3] = 'filters'; $abook_global_file = ''; $abook_global_file_writeable = false; $addrbook_global_dsn = ''; $addrbook_global_table = 'global_abook'; $addrbook_global_writeable = false; $addrbook_global_listing = false;