nagios

Set Up and Use Yum Repositories on Redhat / CentOS

We can install new software on Red Hat/CentOS Linux with “yum install packagename” command from console. Running this command first checks for existing YUM Repository configuration files in /etc/yum.repos.d/ directory. It reads each YUM Repository configuration file to get the information required to download and install new software, resolves software dependencies and installs the required […]

Renewing Ovirt Engine certificates before they expire

In Red Hat Virtualization earlier than version 4.4 SP1, all certificates followed a 398 day lifetime. Starting in Red Hat Virtualization version 4.4 SP1, the self-signed internal certificates between hypervisors and the Manager follow a five year lifetime. Certificates visible to web browsers still follow the standard 398 day lifetime and must be renewed once […]

OBD Call using Asterisk CLI

This is a useful command when building your dial plan, it allows testing of the dial plan remotely. There are a couple of commands to explain. The first is the originate command a highly useful tool for checking any IVR context’s, this is how to use it. originate SIP/14075551234@sip-outbound extension s@auto-att Let me explain this.: […]