AWS

WordPress White page error – Call to undefined function imagecreatefromstring

If you ever get a white page on your WordPress, the best way to troubleshoot is to check the apache error log first. It will have enough information about the issue happening now.   In my case, the error was showing as below in the /var/log/httpd/error_log file.   PHP Fatal error: Uncaught Error: Call to …

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Jenkins not starting on CentOS 7 / RHEL 7

Today i was installing Jenkins on a CentOS7 systems. After installing it via Jenkins yum repository, the service was not stating. The java was already installed on the server. Issue You have installed jenkins on a CentOS7 / RHEL7 system. jenkins is not starting via systemctl start jenkins command, and it is throwing journalctl -xn error. Caused …

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How do I assign a static hostname to a private Amazon EC2 instance running RHEL 7 or Centos 7?

As a Linux System admin, we always love to work on CentOS and RHEL. In my case i had to launch a CentOS7 instance from the AWS Marketplace again. When we set the hostname with hostnamectl and reboot, yes the Instance comes with the default hostname again. So i have thought of documenting it here, so …

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