Linux安全加固之修改SSH登录端口

        Linux的默认登录端口是22，这种默认端口往往本身就存在一定的风险，为了加固Linux的安全性，可以通过修改SSH的默认登录端口来实现，操作比较简单，只要三步就行

使用命令进入配置文件编辑页面

[root@VM-4-16-centos ~]# vim /etc/ssh/sshd_config

# $OpenBSD: sshd_config,v 1.100 2016/08/15 12:32:04 naddy Exp $

# This is the sshd server system-wide configuration file.  See
# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/local/bin:/usr/bin

# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented.  Uncommented options override the
# default value.

# If you want to change the port on a SELinux system, you have to tell
# SELinux about this change.
# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
# 
#Port 22 这个22是默认端口，修改的话，就放开这个注释，修改你自己想要的端口
Port 10086
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::

HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key

# Ciphers and keying
#RekeyLimit default none

通过命令重启SSH服务

[root@VM-4-16-centos ~]# systemctl restart sshd

然后退出重新修改端口登录Linux服务即可！