记录一下Ubuntu17.10的openssh-server的安装和使用。安装之后就可以使用ssh登陆Ubuntu了,所以是Ubuntu的基础设定之一。
Ubuntu版本:17.10
devops@ubuntu:~$ cat /etc/issue
Ubuntu 17.10 \n \l
devops@ubuntu:~$
devops@ubuntu:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 17.10
Release: 17.10
Codename: artful
devops@ubuntu:~$
17.10的Ubuntu代号Artful Aardvark,于2017年10月19日正式发布,是更换GNOME的首个版本,但是这不是一个LTS版本,会支持到2018年8月,是2018年Ubuntu的LTS的版本之前的过渡版本。openssh-server的安装基本上对于Ubuntu的版本影响非常低,基本操作步骤大体一致。
按照如下安装步骤进行安装
步骤 | 命令 | 说明 |
---|---|---|
步骤1 | sudo su | 切换至root用户,ubuntu缺省下root用户有所限制,使用sudo su可以使用当前管理用户的密码切换至root用户,也可以在需要安装权限的命令前加sudo |
步骤2 | apt install openssh-server | 安装openssh-server |
步骤3 | ssh -V | 确认openssh-server版本 |
步骤4 | /etc/init.d/ssh status | 确认openssh-server状态 |
步骤5 | /etc/init.d/ssh restart | 重新启动 openssh-server |
步骤6 | 从终端使用ssh命令连接确认 |
此处再以安装的状态下抓取的日志,apt install显示会有所不同
devops@ubuntu:~$ sudo su
[sudo] password for devops:
root@ubuntu:/home/devops#
root@ubuntu:/home/devops# apt install openssh-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
openssh-server is already the newest version (1:7.5p1-10ubuntu0.1).
0 upgraded, 0 newly installed, 0 to remove and 55 not upgraded.
root@ubuntu:/home/devops#
root@ubuntu:/home/devops# ssh -V
OpenSSH_7.5p1 Ubuntu-10ubuntu0.1, OpenSSL 1.0.2g 1 Mar 2016
root@ubuntu:/home/devops#
root@ubuntu:/home/devops# /etc/init.d/ssh status
● ssh.service - OpenBSD Secure Shell server
Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2018-03-03 07:58:44 CST; 51min ago
Process: 3072 ExecReload=/bin/kill -HUP $MAINPID (code=exited, status=0/SUCCESS)
Process: 3071 ExecReload=/usr/sbin/sshd -t (code=exited, status=0/SUCCESS)
Process: 3167 ExecStartPre=/usr/sbin/sshd -t (code=exited, status=0/SUCCESS)
Main PID: 3179 (sshd)
Tasks: 1 (limit: 4915)
Memory: 1.0M
CPU: 7ms
CGroup: /system.slice/ssh.service
└─3179 /usr/sbin/sshd -D
Mar 03 07:58:44 ubuntu systemd[1]: Starting OpenBSD Secure Shell server...
Mar 03 07:58:44 ubuntu systemd[1]: Started OpenBSD Secure Shell server.
Mar 03 07:58:44 ubuntu sshd[3179]: Server listening on 0.0.0.0 port 22.
Mar 03 07:58:44 ubuntu sshd[3179]: Server listening on :: port 22.
root@ubuntu:/home/devops#
root@ubuntu:/home/devops# /etc/init.d/ssh restart
[ ok ] Restarting ssh (via systemctl): ssh.service.
root@ubuntu:/home/devops#
从终端进行ssh连接
liumiaocn:~ liumiao$ ssh devops@192.168.31.19
devops@192.168.31.19's password:
Welcome to Ubuntu 17.10 (GNU/Linux 4.13.0-21-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
58 packages can be updated.
32 updates are security updates.
Last login: Sat Mar 3 07:43:23 2018 from 192.168.31.242
devops@ubuntu:~$