Linux command can get the outputs easily also use that output for shell scripts or know the details,

The OpenSSL package is an open source for effort to develop a security purpose, robust, Open Source toolkit implementing the Secure Sockets Layer

If you may get an Error Plugin load for plugin geoipfree failed with return code: Error: Can't locate IPfree.pm.

We can get files last modified date, time files in your system by the command.

Already discussed disabled directories in .htaccess now let do in httpd.conf file. We can block the hidden files and directories in the apache, Open the httpd.conf file and add the below lines,

ethtool command is helpful to check the speed and change settings of network interface, also get information which works now for most network interface cards.

We have already discussed how to configure Memcached with PHP on Linux manually, this post will help you configure short time.