ssh

Posted 2020-08-22

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ssh的配置文件有两个：服务端：/etc/ssh/sshd_config

　　　　　　　　　　　客户端：/etc/ssh_config

服务端配置文件：/etc/ssh/sshd_config

[[email protected] /]# vim /etc/ssh/sshd_config 
Port 22                                       #端口
ListenAddress 0.0.0.0                         #监听的IP
Protocol 2                                    #ssh版本
HostKey /etc/ssh/ssh_host_rsa_key             #私钥保存位置
ServerKeyBits 1024                            #私钥的位数
SyslogFacility AUTH                           #日志记录ssh登陆情况
LogLevel INFO                                 #日志等级
GSSAPIAuthentication yes                      #GSSAPI认证开启
安装设定
PermitRootLogin yes                           #允许root用户ssh登陆
PubkeyAuthentication yes                      #是否使用公钥验证
AuthorizedKeysFile     .ssh/authorized_keys   #公钥的保存位置
PasswordAuthentication yes                    #允许使用密码验证登陆
PermitEmptyPasswords no                       #不允许空密码登陆

ssh命令

ssh远程管理

命令： ssh 用户名@目标IP

示例：

[[email protected] /]# ssh [email protected]192.168.119.134
The authenticity of host ‘192.168.119.134 (192.168.119.134)‘ can‘t be established.
RSA key fingerprint is 68:6e:88:57:e3:2e:1b:ea:75:80:c8:db:d2:18:8b:8d.
Are you sure you want to continue connecting (yes/no)? y
Please type ‘yes‘ or ‘no‘: y
Please type ‘yes‘ or ‘no‘: yes
Warning: Permanently added ‘192.168.119.134‘ (RSA) to the list of known hosts.
[email protected]192.168.119.134‘s password: 
Last login: Wed Oct  5 23:19:02 2016 from 192.168.119.1
[[email protected] ~]# ifconfig | grep inet
          inet addr:192.168.119.134  Bcast:192.168.119.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe6e:24e0/64 Scope:Link
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host