报错内容：
[root@BabyishRecent-VM ~]# vi /etc/ssh/sshd_config [root@BabyishRecent-VM ~]# systemctl restart sshd Job for sshd.service failed because a configured resource limit was exceeded. See "systemctl status sshd.service" and "journalctl -xe" for details. [root@BabyishRecent-VM ~]# journalctl -xe error: Bind to port 3389 on :: failed: Permission denied. d[25004]: error: Bind to port 3389 on 0.0.0.0 failed: Permission denied. d[25004]: fatal: Cannot bind any address
查了一下，是selinux的问题，最简单的办法是关了selinux。
但是，想要开启selinux，并修改sshd的端口，需要把要添加的sshd服务端口在selinux上注册。
1、安装semanage
yum -y install policycoreutils-python
2、查看selinux中sshd当前的端口
semanage port -l | grep ssh
3、在selinux中添加端口
[root@BabyishRecent-VM ~]# semanage port -a -t ssh_port_t -p tcp 3389 [root@BabyishRecent-VM ~]# semanage port -l | grep ssh ssh_port_t tcp 3389, 22
4、重启sshd服务
[root@BabyishRecent-VM ~]# systemctl restart sshd [root@BabyishRecent-VM ~]# netstat -tunlp |grep sshd tcp 0 0 0.0.0.0:3389 0.0.0.0:* LISTEN 25333/sshd tcp6 0 0 :::3389 :::* LISTEN 25333/sshd
5、防火墙放行修改后的端口
[root@BabyishRecent-VM ~]# firewall-cmd --add-port=3389/tcp --permanent success [root@BabyishRecent-VM ~]# firewall-cmd --reload success
注：
转载自https://blog.csdn.net/qq_42734759/article/details/90021249
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