Configure NTP to Synchronize the system clock: Centos 6

Login as root. Type the following command

[root@homeserver]# yum install ntp

Type on the ntpd service

[root@homeserver]# chkconfig ntpd on

Synchronize the system clock with 0.pool.ntp.org server:

[root@homeserver]# ntpdate pool.ntp.org

Start daemon process:

[root@homeserver]# /etc/init.d/ntpd restart

Installing SSH2 extension for PHP on Centos 6

Installing the SSH2 PHP extension on CentOS is actually pretty simple. Although it isn’t available as a straight yum install, it boils down to a few short steps.
Firstly, we’re going to install the dependencies:

yum install gcc php-devel php-pear libssh2 libssh2-devel

These will allow us to build the SSH2 extension using pecl.

pecl install -f ssh2

After running that command, it should stop at a line like:

WARNING: channel "pecl.php.net" has updated its protocols, use "pecl channel-update pecl.php.net" to update
downloading ssh2-0.11.3.tgz ...
Starting to download ssh2-0.11.3.tgz (23,062 bytes)
........done: 23,062 bytes
5 source files, building
running: phpize
Configuring for:
PHP Api Version:         20090626
Zend Module Api No:      20090626
Zend Extension Api No:   220090626
libssh2 prefix? [autodetect] :

All you have to do is hit Enter and it should detect the proper path. Once the install is completed, you just have to tell PHP to load the extension when it boots.

touch /etc/php.d/ssh2.ini
echo extension=ssh2.so > /etc/php.d/ssh2.ini

Now restart your webserver and test to see if the changes took effect.

/etc/init.d/lighttpd restart
php -m | grep ssh2

You should get a line returned with ‘ssh2′.

Install WMQ6.0 on Centos

This article explains step-by-step installation of WMQ6.0 on Centos 6.0.

  • Download WMQ6.0 from IBM Website ( login required)
  • After downloading the package and extracting the same on /tmp, accept license by running mqlicense.sh script
  • Install the packages, commands listed below
rpm  -ivh  MQSeriesServer-6.0.2-3.i386.rpm
rpm  -ivh  MQSeriesRuntime-6.0.2-3.i386.rpm
rpm  -ivh  MQSeriesSDK-6.0.2-3.i386.rpm
rpm  -ivh  MQSeriesSamples-6.0.2-3.i386.rpm
rpm  -ivh  MQSeriesClient-6.0.2-3.i386.rpm
rpm  -ivh  MQSeriesJava-6.0.2-3.i386.rpm
rpm  -ivh  MQSeriesTXClient-6.0.2-3.i386.rpm
rpm  -ivh  MQSeriesServer-6.0.2-3.i386.rpm
rpm  -ivh  MQSeriesMan-6.0.2-3.i386.rpm
rpm  -ivh –nodeps  MQSeriesFTA-6.0.2-3.i386.rpm
rpm  -ivh –nodeps MQSeriesIES30-6.0.2-3.i386.rpm
rpm  -ivh –nodeps MQSeriesConfig-6.0.2-3.i386.rpm
rpm  -ivh  MQSeriesKeyMan-6.0.2-3.i386.rpm
rpm  -ivh  gsk7bas-7.0-4.11.i386.rpm
rpm  -ivh  IBMJava2-142-ia32-SDK-1.4.2-9.0.i386.rpm 
  • Done.