How can I raise the open file limit for the login failure daemon?

The login failure daemon can crash if you are monitoring a lot of domains in Plesk and are reaching the open file limit for your server. To raise the limit:

Edit the login failure daemon systemd service:

systemctl edit lfd.service

Add the following to the override.conf file:


Reload  systemd:

systemctl daemon-reload

Restart the LFD service:

systemctl restart lfd.service
  • LimitNOFILE, lfd
  • 1 Users Found This Useful
Was this answer helpful?

Related Articles

How can I test to make sure that the OS has all the required kernel modules required for Juggernaut Firewall?

Test from the Juggernaut Extension You can run the firewall test by going to Juggernaut Firewall...

How can I only allow SSH from my IP address and block it on the firewall for everyone else?

First make sure that your IP address is whitelisted on the firewall so you do not accidentally...

How can I adjust the attack triggers used by the login failure daemon?

To Adjust Login Failure Triggers Navigate to Juggernaut Firewall -> Settings -> Login...

Where are the configuration files for Juggernaut Firewall located?

Configuration files are located in the /etc/csf/ directory with the main firewall configuration...

How do I sign up for a free MaxMind license key?

To get your free Maxmind license key Signup for the free license key here:...