CentOS 7 sshd Link is denied issue, Port changed to 2200

1, server link not on

Ssh:connect to host XXXXX Port 22:connection refused

Cause, CENTOS7 modified the linked port to become 2200.

#Port 22
Port 2200

Change back, or use the 2200 link.

Modified: Vi/etc/ssh/sshd_config

2,centos7 the firewall is installed by default, not iptables.

Because it is a local test, shut down the firewall directly and disable boot boot.

Systemctl Stop Firewalld

Systemctl Disable FIREWALLD

3, turn off SELinux

Vi/etc/selinux/config

Modify the following content

#SELINUX =enforcing #注释掉

#SELINUXTYPE =targeted #注释掉

Selinux=disabled #增加

CentOS 7 sshd Link is denied issue, Port changed to 2200