CentOS 7配置ssh

最近在虚拟机里装了好几台centos，打算全部放到xshell里边儿管理，也可以通过局域网进行连接。

首先检查是否安装了sshd，centos 7默认都有安装的。

yum list installed | grep ssh

[root@192 ~]# yum list installed | grep ssh
libssh2.x86_64                        1.8.0-4.el7                      @anaconda
openssh.x86_64                        7.4p1-22.el7_9                   @updates 
openssh-clients.x86_64                7.4p1-22.el7_9                   @updates 
openssh-server.x86_64                 7.4p1-22.el7_9                   @updates 

可以看到openssh-server.x86_64默认已经安装了，如果没有就yum install一下呗:)。

运行并设置守护

启动

systemctl start sshd

守护

systemctl enable sshd

查看状态

systemctl status sshd

[root@192 ~]# systemctl start sshd
[root@192 ~]# systemctl enable sshd
Created symlink from /etc/systemd/system/multi-user.target.wants/sshd.service to /usr/lib/systemd/system/sshd.service.
[root@192 ~]# systemctl status sshd
● sshd.service - OpenSSH server daemon
   Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2023-02-24 19:01:21 CST; 9min ago
     Docs: man:sshd(8)
           man:sshd_config(5)
 Main PID: 9030 (sshd)
   CGroup: /system.slice/sshd.service
           └─9030 /usr/sbin/sshd -D

Feb 24 19:01:21 192.168.190.121 systemd[1]: Stopped OpenSSH server daemon.
Feb 24 19:01:21 192.168.190.121 systemd[1]: Starting OpenSSH server daemon...
Feb 24 19:01:21 192.168.190.121 sshd[9030]: Server listening on :: port 22.
Feb 24 19:01:21 192.168.190.121 sshd[9030]: Server listening on 0.0.0.0 port 22.
Feb 24 19:01:21 192.168.190.121 systemd[1]: Started OpenSSH server daemon.