Linux: In general tab of VM in XenCenter, you get an option to install the tools. Another way is to select VM Menu -> Install Xen Server Tools option. Issue: When you try installing XenServer Tools on to Linux VMs you might find that the virtual cd device won’t get mounted and the syslog logs [...]

Still running some old boxes on Redhat 9? Here is a way to get it upgraded. Caution: Try this at your own risk Before proceeding, make sure all your hardware is supported by your chosen target OS Upgrade Red Hat 9 to CentOS 3.x: 1. Make a full backup of all your data 2. Import GPG [...]

Here is an update on BIND for cPanel server admin’s Recent versions of Bind distributed by RedHat and?CentOS enable strict zone checking at startup time. This setting can potentially cause problems for Bind users with a large number of zone files or syntax errors in individual zone files. In these circumstances, users may experience an [...]

To install default Kannada font (lohit_kn.ttf) on CentOS we need to install fonts-kannada package via yum as follows. # yum install fonts-kannada Setting up Install Process Parsing package install arguments Resolving Dependencies –> Running transaction check —> Package fonts-kannada.noarch 0:2.3.1-1.el5 set to be updated –> Finished Dependency Resolution Dependencies Resolved ========================================== Package                 Arch       Version          Repository        [...]

While working on Redhat based operating systems, its common to face few issues related to RPM. Rpm database gets corrupted. It might segfault, it might cause lots of issues while installing or updating packages. First step to resolve RPM related issues is to rebuild the rpm database. This can be done by removing the __db [...]

Are you troubled with “too many open files” error on your server?  Unable to run the services? warning: cannot open <filename>: Too many open files Here are few fixes which you can use to get the issue resolved. Making sure /proc/sys/fs/file-max was big enough Adding “fs.file-max = 2048″ to /etc/sysctl.conf Adding “* – nofile 2048″ [...]