SSH server-side Security Configuration

To change the SSH server configuration file

[Email protected] ~]# Vi/etc/ssh/sshd_config

Port 59118 #ssh Connection default port is 22, improved security level after change

Permitrootlogin No #禁止root用户远程登录

Permitemptypasswords No #禁止空密码登录

Usedns No #不使用DNS

Gssapiauthentication No #提高登录速度

Save exit

[[Email protected] ~]# service sshd restart

Stop sshd: [OK]

Starting sshd: [OK]

Use the created normal user Alvin, log in and then switch to root to improve system security.

[email protected] ~]$ Su-

Password:

[Email protected] ~]#

This article from "Knowledge Change Destiny" blog, declined reprint!

SSH server-side Security Configuration