使用xshell连接ubuntu

安装ssh服务

首先确保主机安装了ssh服务

以ubuntu 22.04.2为例

$ sudo apt update 
$ sudo apt install openssh-server 
$ server sshd status #查看ssh服务的状态 
$ systemctl start/stop sshd #启动/停止 ssh服务

使用xshell连接

获取主机ip (ens33)

$ ip addr show

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:8c:50:d5 brd ff:ff:ff:ff:ff:ff
    altname enp2s1
    inet 192.168.154.136/24 brd 192.168.154.255 scope global dynamic noprefixroute ens33
       valid_lft 1739sec preferred_lft 1739sec
    inet6 fe80::54b2:76a8:dca8:572/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:04:16:bc:d1 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:4ff:fe16:bcd1/64 scope link 
       valid_lft forever preferred_lft forever
9: vethe91d939@if8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default 
    link/ether 52:77:55:7e:bd:be brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::5077:55ff:fe7e:bdbe/64 scope link 
       valid_lft forever preferred_lft forever

SSH配置

打开 /etc/ssh/sshd_config 文件，确保以下行的存在：

Port 22 #连接的端口号

Protocol 2 #SSH-2协议

如果没有就添加，并重启sshd服务

$ sudo service sshd restart

在XShell中连接

在xshell中新建一个session输入ip和端口，连接即可，也可以设置登录用户