Premature End of Script Headers – Apache Error

‘Premature end of script headers’ is really uncertain error message and difficult to resolve. In this article, we will discuss about possible solutions to resolve this error. Sometimes when executing a PHP script you will see the following error in Apache error log: Premature end of script headers: /home/user/public_html/index.php This error occurs because the server […]

Difference between su and sudo

For the most Linux distributions, su and sudo are widely used commands. In this article we will discuss what is the main difference between su and sudo commands. What is ‘su’ command? ‘su’ commands forces you to share your root password to other users. When any superuser type su, it will prompt to enter the […]

How to patch OpenSSL Heartbleed vulnerability

Recently a vulnerability discovered with certain versions of OpenSSL . OpenSSL is a toolkit which implements SSL/TLS protocols as well as general cryptography for various operating systems. This vulnerability can provide a backdoor for attackers to gain access to confidential information. The following OpenSSL versions were affected by Heartbleed vulnerability: OpenSSL 1.0.1 through 1.0.1f (inclusive) […]

Upgrade OpenSSL on CloudLinux

Recently OpenSSL has released an update to address “Heartbleed” vulnerability and it is recommended that you update as soon as possible. In this article, we will discuss how to upgrade OpenSSL on CloudLinux. Upgrade Instructions: # yum clean all # yum update openssl # cagefsctl –force-update # /etc/init.d/httpd stop # /etc/init.d/httpd start If you are […]

Check MySQL service uptime through command line

Check MySQL service uptime through command line As a server administrator, it is easy to check MySQL service uptime through command line (via SSH for Linux server or MySQL command line for Windows server). You just need to follow the below steps: [1] Login to your server via SSH or access MySQL server via MySQL […]

Error loading stylesheet Google XML Sitemaps plugin

Error loading stylesheet Google XML Sitemaps If you are using WordPress plugin Google XML Sitemaps, you may receive the following error while accessing your sitemap without WWW ( Error loading stylesheet: An unknown error has occurred (805303f4) However you can access the same sitemap using WWW ( How to fix this problem? Easy way to […]