Solve Problems Related to slow ssh login authentication in CentOS
Generally, SSH authentication on Linux is slow, and most of them are caused by SSH parameter configuration. In most cases, the seDNS parameter is confusing. You can simply change it to no. Specific modification method
- Vi/etc/ssh/sshd_config
- UseDNS no # Add the last line
This parameter is enough, so it will not be parsed, saving time. If there is no configuration file after opening with VI, you can directly create a new file and execute
Find/-name sshd_config
To find the SSH configuration file and modify it. Generally, the modification time is greatly shortened. If not, you can make further modifications.
Comment out the following two line parameters.
GSSAPIAuthentication yes
GSSAPIDelegateCredentials no
Restart the SSH service.
/Etc/init. d/ssh restart
If there is an error prompt after execution, if it fails, reboot will be restarted directly.
