CentOS修改Ssh端口提示error: Bind to port 2200 on 0.0.0.0 failed: Permission denied.

##报错内容
error: Bind to port 2200 on 0.0.0.0 failed: Permission denied.

问题原因

selinux 问题

解决办法
修改selinux中sshd的端口。

安装修改工具

yum -y install policycoreutils-python

查看selinux中的ssh的端口,输出为 22

semanage port -l | grep ssh

新增端口

semanage port -a -t ssh_port_t -p tcp 2200

完成重启

[root@WiseFresh-VM ssh]# semanage port -l | grep ssh
ssh_port_t tcp 2200, 22
[root@WiseFresh-VM ssh]#
[root@WiseFresh-VM ssh]# systemctl status sshd
● sshd.service - OpenSSH server daemon
Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2019-12-17 20:46:46 EST; 4s ago
Docs: man:sshd(8)
man:sshd_config(5)
Main PID: 27128 (sshd)
CGroup: /system.slice/sshd.service
└─27128 /usr/sbin/sshd -D

Dec 17 20:46:46 WiseFresh-VM systemd[1]: Stopped OpenSSH server daemon.
Dec 17 20:46:46 WiseFresh-VM systemd[1]: Starting OpenSSH server daemon…
Dec 17 20:46:46 WiseFresh-VM sshd[27128]: Server listening on 0.0.0.0 port 2271.
Dec 17 20:46:46 WiseFresh-VM sshd[27128]: Server listening on :: port 2271.
Dec 17 20:46:46 WiseFresh-VM systemd[1]: Started OpenSSH server daemon.