SIP Trunking - IP Based authentication and Password based authentication

SIP trunking is the method of sending calls to ITSP service provider using sip protocol.Indepth details refer RFC 3261 There are two types of authentications1. IP based authentication 2.Username and Password based authentication For IP Based AuthenticationYou need to do the following changes in the sip.conf[siptrunk]type=friendfromuser=X.X.X.X ( your asterisk server ip ) which will send traffic...

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Setup DKIM on Postfix with OpenDKIM

Introduction DKIM is an authentication framework which stores public-keys in DNS and digitally signs emails on a domain basis. It was created as a result of merging Yahoo's domainkeys and Cisco's Identified Internet mail specification. It is defined in RFC 4871. We will be using the OpenDKIM implementation Centos, OpenDKIM is a fork of dkim-milter. Installation yum...

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PHP 5.3 on CentOS/RHEL 5.11 via Yum

To install, first you must install the yum repository information: rpm -Uvh http://mirror.webtatic.com/yum/centos/5/latest.rpm   Now you can install php by doing: yum --enablerepo=webtatic install php   Or update an existing installation of php, which will also update all of the other php modules installed: yum --enablerepo=webtatic update ph...

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