Linux基础指令—9
******ssh服务********
让一个远程主机可以通过网络访问sshd服务，开始一个shell
链接方式
ssh 远程主机用户@远程主机ip
******sshkey加密*******
[[email protected] ~]# ssh-****** ##生成公私钥匙
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):[enter] ##加密字符保存文件（建议用默认）
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase): [enter] ##**密码，必须>4个字符，直接回车则没有密码
Enter same passphrase again: [enter] ##确认密码
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:
ab:3c:73:2e:c8:0b:75:c8:39:3a:46:a2:22:34:84:81 [email protected]
The key's randomart image is:
+--[ RSA 2048]----+
|o |
|E. |
|.. |
|. . o |
|.o. * . S |
|oo.o o . |
|+ =. . . |
|o. oo.+.. |
| ..o*. |
+-----------------+
ssh-copy-id -i /root/.ssh/id_rsa.pub 加密用户@IP
发钥匙
scp /root/.ssh/id_rsa 用户@IP:/root/.ssh/
**提升安全级别***
修改openssh-server配置文件
vim /etc/ssh/sshd_config
ssh登陆提示修改
vim /etc/motd