#修改centos服务器ssh端口

sed -i 's/#Port 22/Port 38390/' /etc/ssh/sshd_config
sed -i 's/^GSSAPIAuthentication yes$/GSSAPIAuthentication no/' /etc/ssh/sshd_config
service sshd restart

#修改centos服务器root密码

echo '8bdafafffe' | passwd --stdin root

发现sshd无法启动

UseDNS no
#AddressFamily inet
PermitRootLogin yes
SyslogFacility AUTHPRIV
PasswordAuthentication yes

vim /etc/ssh/sshd_config

修改如下：

ListenAddress 1.1.1.1

重启sshd报错：
service sshd restart
Stopping sshd:                                             [FAILED]
Starting sshd: /etc/ssh/sshd_config line 130: address family must be specified before ListenAddress.
                                                           [FAILED]
于是将sshd_config底部的AddressFamily inet提至ListenAddress前面即可：

Port 38390
AddressFamily inet
ListenAddress 1.1.1.1

ubuntu ssh端口修改方法
sed -i 's/Port 22/Port 38390/' /etc/ssh/sshd_config
sed -i 's/^GSSAPIAuthentication yes$/GSSAPIAuthentication no/' /etc/ssh/sshd_config

service ssh restart

密码修改方法

sudo passwd