Technical Tip: How to solve the '500 Internal Server Error' in FortiClient EMS Linux

When accessing the FortiClient EMS console through the web, the following message may be displayed:

This error typically occurs when the FortiClient EMS disk reaches its maximum storage capacity. To resolve this, verify that the EMS server storage is indeed full and follow these steps:

1. Create a snapshot of the FortiClient EMS VM.
2. Log in to the FortiClient EMS terminal and run the following command to list log files older than 10 days:
   
   

sudo find /var/log/forticlientems/ -type f -name ".log" -mtime +10

Note: If the result returns no files or only a few, change the parameter '+1.0' to '+3'.

3. After that, run the following command to delete the FortiClient EMS log files listed by the previous command:

    

sudo find /var/log/forticlientems/ -type f -name ".log" -mtime +10 -exec rm -v {} ;

Important: If the file modification time was changed to '+3' as instructed in step 2, it must also be replaced in the command above.

Below is a KB article about another possible cause for 500 Internal server error:

Troubleshooting Tip: '500 Internal Server Error' when accessing FortiClient EMS Linux on GUI