【Linux】ubuntu安装ssh服务端openssh-server

1、背景

2、解决办法

安装命令如下：

sudo apt install openssh-server 

详细安装日志：

yus@jn:~/Test$ sudo apt install openssh-server Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: ncurses-term openssh-sftp-server ssh-import-id Suggested packages: molly-guard monkeysphere rssh ssh-askpass The following NEW packages will be installed: ncurses-term openssh-server openssh-sftp-server ssh-import-id 0 upgraded, 4 newly installed, 0 to remove and 10 not upgraded. Need to get 637 kB of archives. After this operation, 5,316 kB of additional disk space will be used. Do you want to continue? [Y/n] Y Get:1 https://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-updates/main amd64 ncurses-term all 6.1-1ubuntu1.18.04 [248 kB] Get:2 https://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-updates/main amd64 openssh-sftp-server amd64 1:7.6p1-4ubuntu0.3 [45.6 kB] Get:3 https://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-updates/main amd64 openssh-server amd64 1:7.6p1-4ubuntu0.3 [333 kB] Get:4 https://mirrors.tuna.tsinghua.edu.cn/ubuntu bionic-updates/main amd64 ssh-import-id all 5.7-0ubuntu1.1 [10.9 kB] Fetched 637 kB in 1s (458 kB/s) Preconfiguring packages ... Selecting previously unselected package ncurses-term. (Reading database ...  files and directories currently installed.) Preparing to unpack .../ncurses-term_6.1-1ubuntu1.18.04_all.deb ... Unpacking ncurses-term (6.1-1ubuntu1.18.04) ... Selecting previously unselected package openssh-sftp-server. Preparing to unpack .../openssh-sftp-server_1%3a7.6p1-4ubuntu0.3_amd64.deb ... Unpacking openssh-sftp-server (1:7.6p1-4ubuntu0.3) ... Selecting previously unselected package openssh-server. Preparing to unpack .../openssh-server_1%3a7.6p1-4ubuntu0.3_amd64.deb ... Unpacking openssh-server (1:7.6p1-4ubuntu0.3) ... Selecting previously unselected package ssh-import-id. Preparing to unpack .../ssh-import-id_5.7-0ubuntu1.1_all.deb ... Unpacking ssh-import-id (5.7-0ubuntu1.1) ... Setting up ncurses-term (6.1-1ubuntu1.18.04) ... Setting up openssh-sftp-server (1:7.6p1-4ubuntu0.3) ... Setting up ssh-import-id (5.7-0ubuntu1.1) ... Setting up openssh-server (1:7.6p1-4ubuntu0.3) ... Creating config file /etc/ssh/sshd_config with new version Creating SSH2 RSA key; this may take some time ... 2048 SHA256:UVU9dG8lhh4sAvp68p7I/V2I3VEkQcqLJopXcgbqARw root@ts006-MS-7A94 (RSA) Creating SSH2 ECDSA key; this may take some time ... 256 SHA256:Nh0RpvlORi2IRD5r6T/SHEZFfcJRlkKIJxRZ4kgu3pc root@ts006-MS-7A94 (ECDSA) Creating SSH2 ED25519 key; this may take some time ... 256 SHA256:NbjnEQNRR8UHfUyt1Wl+PrfMkHev6y3PxeunU+cQhJQ root@ts006-MS-7A94 (ED25519) Created symlink /etc/systemd/system/sshd.service → /lib/systemd/system/ssh.service. Created symlink /etc/systemd/system/multi-user.target.wants/ssh.service → /lib/systemd/system/ssh.service. Processing triggers for man-db (2.8.3-2ubuntu0.1) ... Processing triggers for ufw (0.36-0ubuntu0.18.04.1) ... Processing triggers for ureadahead (0.100.0-21) ... ureadahead will be reprofiled on next reboot Processing triggers for systemd (237-3ubuntu10.39) ... yus@jn:~/Test$ sudo ifconfig [sudo] password for yus: eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.104 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::a11d:bb94:cfa3:1f2f prefixlen 64 scopeid 0x20<link> ether 00:d8:61:18:0d:95 txqueuelen 1000 (Ethernet) RX packets  bytes  (4.6 GB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets  bytes  (23.6 GB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 16 memory 0x92f00000-92f20000 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets  bytes  (23.4 GB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets  bytes  (23.4 GB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 yus@jn:~/Test$ 

3、测试

如下表示连接成功 ！

Administrator@PJ9NM MINGW64 ~ $ ssh yus@192.168.1.104 yus@192.168.1.104's password: Welcome to Ubuntu 18.04.4 LTS (GNU/Linux 5.3.0-51-generic x86_64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage * Canonical Livepatch is available for installation. - Reduce system reboots and improve kernel security. Activate at: https://ubuntu.com/livepatch 11 packages can be updated. 0 updates are security updates. Your Hardware Enablement Stack (HWE) is supported until April 2023. The programs included with the Ubuntu system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. yus@jn:~$