"500 Internal server error" when trying to access Plesk and websites

Refers to:

  • Plesk for Linux

Created:

2016-11-16 13:00:06 UTC

Modified:

2016-12-21 19:43:51 UTC

0

Was this article helpful?


Have more questions?

Submit a request

"500 Internal server error" when trying to access Plesk and websites

Symptoms

The browser displays 500 Internal server error when trying to access the Plesk Web Interface or websites. Sometimes, only particular pages fail to work; for example, the "License Management" page ( Tools & Utilities -> License management ).

Note : For a solution to "500 - Internal Server Error", see article #213955585:[HUB] 500 - Internal Server Error

Cause

Enabling the Linux kernel parameter kernel.yama.ptrace_scope prevents access to the license management page. This parameter is enabled on Ubuntu 10.10 or newer versions by default.

Resolution

Disable the kernel.yama.ptrace_scope Linux kernel parameter by running the below commands on your server:

# echo "kernel.yama.ptrace_scope = 0" >> /etc/sysctl.conf 
# sysctl -w kernel.yama.ptrace_scope=0
Have more questions? Submit a request
Please sign in to leave a comment.