环境：
Centos 7.5
VMware 16.0.0
问题描述：
CentOS7.5 修改默认ssh端口号,重启sshd失败如何解决
重启sshd时 :
解决方案：
1.关闭setenforce
setenforce 0设置永久关闭selinux
vim /etc/sysconfig/selinux将第7行内容修改如下
SELINUX=disabled# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of three two values:
# targeted - Targeted processes are protected,
# minimum - Modification of targeted policy. Only selected processes are protected.
# mls - Multi Level Security protection.
SELINUXTYPE=targeted2.启动sshd服务
systemctl start sshd3.查看sshd服务状态
systemctl status sshd
4.防火墙开放sshd端口
firewall-cmd --zone=public --add-port=2023/tcp --permanent
firewall-cmd --reload
systemctl restart sshd版权声明：本文内容由互联网用户自发贡献，该文观点仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容， 请发送邮件至2705686032@qq.com 举报，一经查实，本站将立刻删除。原文转载： 原文出处：
