Update VMware Hypervisor to ESXi 6.0 Update 2

On 17 March 2016, VMware releases ESXi 6.0 Update 2. The ESXi 6.0 Update 2 supports 25 G and 50 G ethernet link speeds and  HTML5 support for VMware Host Client and enhance APIs support. VMware provides several ways to upgrade ESX/ESXi hosts: vSphere Update Manager Interactively using an ESXi installer ISO image Scripted upgrade vSphere… Read More »

Linux Password policy – /etc/login.defs No change for existing users

To enable the password policy in on my CentOS 7, i edited the /etc/login.defs and make changes following values: PASS_MAX_DAYS Maximum number of days a password may be used. PASS_MIN_DAYS Minimum number of days allowed between password changes. PASS_MIN_LEN Minimum acceptable password length. PASS_WARN_AGE Number of days warning given before a password expires.

The above… Read More »

How to convert SSL certificate from CRT format to PEM format

Question: How can I convert .crt to .pem? Answer: You can use OpenSSL in CentOS and convert the .crt certificate to .pem certificate. Run following command on terminal:

If you are on Windows, the use OpenSSL libraries for Windows and run above same command. Download OpenSSL for Windows – http://www.slproweb.com/products/Win32OpenSSL.html  

Here is how I connected to Mumbai Central Google’s free WiFi (With Images)

In January 2015, RailTel in partnership with Google launched first free high-speed public Wi-Fi service in Mumbai’s Mumbai Central station. Google CEO Sundar Pichai had announced that Mumbai Central will be the first station to get Wi-Fi under the scheme during his India visit in December 2015. During my visit at Mumbai Central station, i… Read More »

Where to download Samba 4.3 RPM for CentOS?

Question: Where can i download the RPM for Samba 4.3 for CentOS? Answer:  The SerNet Samba is the famous repo to download Samba RPMs. Unfortunately, with the release of the Samba 4.3 packages SerNet changed to SAMBA+: Samba 4.3 packages as well as all later versions are available as software subscription. What does this mean?

NameVirtualHost has no effect in Apache 2.4

Quesion: Recently, using Apache 2.4 i got the error message “NameVirtualHost has no effect and will be removed in the next release”. Can you explain this?Answer: From the apache documentation: Prior to 2.3.11, NameVirtualHost was required to instruct the server that a particular IP address and port combination was usable as a name-based virtual host.… Read More »

Good bye MySQL, Welcome MariaDB – Explained

Since i started working on Linux, the MySQL used to be the default database but suddenly it was replaced by MariaDB –  a “drop-in” replacement of MySQL. What happened all of a sudden? Here what im trying find out: Short answer: Due to fear that Oracle is making MySQL a more closed software after it… Read More »