Posted on 11 November 2009.
IPv6 functionality is being made available to the system by the ipv6 kernel module. To check if this module is currently loaded in your system, issue the following command as root:
lsmod | grep ipv6
If you see ipv6 in its output, then the module is loaded. Continue Reading
Posted in Linux0 Comments
Posted on 10 November 2009.
Qmail linux mainames path
/var/qmail/mailnames/domain/
Posted in Linux, Plesk0 Comments
Posted on 23 October 2009.
The basics for any network based on *nix hosts is the Transport Control Protocol/ Internet Protocol (TCP/IP) combination of three protocols. This combination consists of the Internet Protocol (IP),Transport Control Protocol (TCP), and Universal Datagram Protocol (UDP).
By Default most of the users configure their network card during the installation of Ubuntu. You can however, use the ifconfig command at the shell prompt or Ubuntu’s graphical network configuration tools, such as network-admin, to edit your system’s network device information or to add or remove network devices on your system Continue Reading
Posted in Linux0 Comments
Posted on 22 October 2009.
By default, Plesk will install PEAR and a lot of packages, but block any access to it for PHP scripts. It’s fairly easy to enable this, though.
First of all, you need to edit the VirtualHost of whatever domain you’re trying to enable this for. Seeing as Plesk would just overwrite your httpd.conf with the next change you make in the controlpanel, you need to use a seperate vhost.conf file.
The file to edit can be found in the following directory:
/var/www/vhosts/<my domain>/conf/vhost.conf Continue Reading
Posted in Linux0 Comments
Posted on 22 October 2009.
# first change to the framework directory and get the framework PEAR packages installed
cd /var/www/html/horde/framework/
php install-packages.php Continue ReadingPosted in Linux0 Comments
Posted on 15 October 2009.
Need to monitor Linux server performance? Try these built-in command and a few add-on tools. Most Linux distributions are equipped with tons of monitoring. These tools provide metrics which can be used to get information about system activities. You can use these tools to find the possible causes of a performance problem. The commands discussed below are some of the most basic commands when it comes to system analysis and debugging server issues such as:
http://www.cyberciti.biz/tips/top-linux-monitoring-tools.html Continue Reading
Posted in Linux0 Comments
Posted on 08 October 2009.
RedHat Linux command to reload or restart network (login as root user):
# service network restart
OR
# /etc/init.d/network restart
Posted in Linux0 Comments
Posted on 28 September 2009.
After a lot of research, as I couldn’t find answers on forums and other places. I found on sourceforge.net they released some rpm packages to integrate mcrypt and mhash with php.
First we need to install mcrypt and mhash as follows:
1) Install mcrypt & mhash
yum install mcrypt*
yum install mhash*
answer y to the question if matched your system (it should).
2) enable support for php. requires php-mcrypt and php-mhash packages:
yum install php-mcrypt*
yum install php-mhash*
If you get an error saying packages not signed (unsigned packages), do the following:
edit /etc/yum.conf
change:
gpgcheck=1 to gpgcheck=0
attemp step 2 again. Once completed change back yum.conf
Hope this helps and saves anybody else.
C. Lozano
Posted in Linux, PHP, Plesk0 Comments
Posted on 23 September 2009.
By default, PHP limits uploaded files size to 2 MB, and this limit applies to all PHP application including Webmail. Edit the following options in /etc/php.ini file on the Plesk server and set the values that match your needs, for example:
upload_max_filesize = 32M
post_max_size = 32M
Restart Apache after the php.ini file modification.
Also, maximum attached file size can be changed in Horde configuration. See “attach_size_limit” option in the /etc/psa-horde/imp/conf.php:
$conf['compose']['attach_size_limit'] = ’0′;
Zero “attach_size_limit” value means ‘no limit’.
Note that memory_limit should be larger than post_max_size.
If you insrease PHP parameter post_max_size do not forget to increase parameter memory_limit also.
Posted in Linux, Plesk0 Comments
Posted on 15 September 2009.
Task: Command line tool to manage services / Ubuntu runlevel
update-rc.d automatically updates the System V style init script links /etc/rcrunlevel.d/NNname to scripts /etc/init.d/name. These are run by init when changing runlevels and are generally used to start and stop. For example turn on ssh service type the command: Continue Reading
Posted in Linux, Plesk0 Comments
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