OpenSSH
OpenSSH
- OpenSSH开源免费提供ssh远程安全登录的程序
- ssh协议端口：22/tcp
- 服务名：sshd
- ssh提供密钥认证登录方式
#生成公私钥
[root@localhost ~]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:Yjcq3+SAOmVQgCbRVC+6QgJp+rss5MK+anEwitmi4Xo root@localhost
The key's randomart image is:
+---[RSA 2048]----+
|.=oo. |
|oo. .. |
|=. .. . |
|+o.. . |
|=++. o S |
|O+.ooo + . |
|Bo=oo o . |
|+BEo o = |
|O=*o . o |
+----[SHA256]-----+
#查看密钥文件
[root@localhost ~]# ls .ssh
id_rsa id_rsa.pub
#将公钥拷贝至其他主机
[root@localhost ~]# ssh-copy-id -i .ssh/id_rsa.pub root@192.168.0.27
#其他主机查看公钥文件
[root@host-27 ~]# ls .ssh
authorized_keys
#验证是否实现密钥认证登录
[root@localhost ~]# ssh 192.168.0.27
Last login: Sat Jun 5 00:41:47 2021 from 192.168.0.1
[root@host-27 ~]#
[root@host-27 ~]# exit
登出
------------恢复内容开始------------
#### OpenSSH- OpenSSH开源免费提供ssh远程安全登录的程序
- ssh协议端口：22/tcp
- 服务名：sshd
- ssh提供密钥认证登录方式
#生成公私钥
[root@localhost ~]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:Yjcq3+SAOmVQgCbRVC+6QgJp+rss5MK+anEwitmi4Xo root@localhost
The key's randomart image is:
+---[RSA 2048]----+
|.=oo. |
|oo. .. |
|=. .. . |
|+o.. . |
|=++. o S |
|O+.ooo + . |
|Bo=oo o . |
|+BEo o = |
|O=*o . o |
+----[SHA256]-----+
#查看密钥文件
[root@localhost ~]# ls .ssh
id_rsa id_rsa.pub
#将公钥拷贝至其他主机
[root@localhost ~]# ssh-copy-id -i .ssh/id_rsa.pub root@192.168.0.27
#其他主机查看公钥文件
[root@host-27 ~]# ls .ssh
authorized_keys
#验证是否实现密钥认证登录
[root@localhost ~]# ssh 192.168.0.27
Last login: Sat Jun 5 00:41:47 2021 from 192.168.0.1
[root@host-27 ~]#
[root@host-27 ~]# exit
登出
------------恢复内容结束------------
