Category Archives: Servers

Linux : How to add IP range on RHEL/CentOS

If you have a full subnet to add on RHEL/CentOS Linux system, there is a short way to achieve this instead of manually create single alias interfaces. 1. Create a script at this location : vi /etc/sysconfig/network-scripts/ifcfg-eth0-range0 (ajust values as needed, according to the interface you would would have the IP subnet binded to an… Read More »

Linux : How to add JSON support to CentOS 5 PHP 5.1.6

JSON support come natively with PHP 5.2 and later. If you are running CentOS Linux 5, this is PHP version 5.1.6 that is included by default. Fortunately, since version 5.6, CentOS packaged version 5.3.3 of PHP that can be installed through YUM (not included in the ISO set). If you still run applications that can’t… Read More »

Linux : How to flush Qmail queue

There is a nice Perl script called “qmHandle” to delete entirely the Qmail queue. Just download, put into Qmail script directory (/var/qmail/bin) and run the following command : qmHandle -D You can found the script at http://sourceforge.net/projects/qmhandle  

RoundCube : Service currently unavailable message after transfer

Get this error trying to access RoundCube Webmail after transferring to another server : SERVICE CURRENTLY NOT AVAILABLE! Error No. [500] This indicate in most case something went wrong with the MySQL database transfer. Either you forgot to transfer the database on the new server or something definitely went wrong importing it. Start over the… Read More »