How To Use Etc Ssh Sshd Config

The etc ssh sshd config file is the system wide configuration file for openssh which allows you to set options that modify the operation of the daemon.

How to use etc ssh sshd config. Then change the line. Some organizations run multiple ssh servers at different port numbers specifying a different configuration file for each server using this option. We have configured x11 forwarding. After making that change restart the ssh service by running the following command as root. Sudo service ssh restart enable logging in as root.

This may be commented out. Now go to your client system in my case it is ubuntu 20 04 and access the remote server via ssh using command. The openssh server reads a configuration file when it is started. You can also try other methods to enable and configure the ssh service on linux. If you find something is wrong in the configuration script you can also reset the configuration file.

To disable root login. Sudo nano etc ssh sshd config etc init d sshd restart sudo nano etc ssh sshd config etc init d sshd restart vi etc ssh sshd config. Here are the most important keywords to configure your sshd for top security. Sudo nano etc ssh sshd config inside the file search for a directive called passwordauthentication. This will disable your ability to log in through ssh using account passwords.

Lines starting with and empty lines are interpreted as comments. System wide configuration file etc ssh ssh config this means that the priority is given to the command you enter and then it looks into ssh config and then in etc ssh ssh config. Arguments may optionally be enclosed in double quotes in order to represent arguments containing spaces. Look for a line that contains permitrootlogin and replace it with the following line. This file contains keyword value pairs one per line with keywords being case insensitive.

Now it s time to restart the ssh server. Ssh x email protected here x option is used to enable x11 forwarding over. Usually this file is etc ssh sshd config but the location can be changed using the f command line option when starting sshd. Sshd 8 reads configuration data from etc ssh sshd config or the file specified with f on the command line. Restart sshd service to effect the changes.