生成公私钥

##########生成公私钥#######################
[root@localhost ~]# ssh-keygen -t rsa
###########生成公私钥######################
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):    回车
Created directory '/root/.ssh'.
Enter passphrase (empty for no passphrase):   回车
Enter same passphrase again:   回车
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:
f0:42:dc:45:9f:1d:61:43:4e:77:fe:81:90:a0:cb:b2 root@localhost.localdomain
The key's randomart image is:
+--[ RSA 2048]----+
|         o+...B.o|
|     . ... o.*.=.|
|      +..   o.o..|
|     ..o.       o|
|     ..oS       .|
|      o.         |
|     E           |
|                 |
|                 |
+-----------------+
[root@localhost ~]# cd .ssh/
[root@localhost .ssh]# ll
总用量 8
-rw------- 1 root root 1679 11月 30 16:59 id_rsa
-rw-r--r-- 1 root root  408 11月 30 16:59 id_rsa.pub
##########将公钥写入authorized_keys文件##########
[root@localhost .ssh]#cat id_rsa.pub >> authorized_keys
[root@localhost .ssh]#chmod 600 authorized_keys
##########将公钥写入authorized_keys文件##########
[root@localhost .ssh]# ll
总用量 12
-rw-r--r-- 1 root root  408 11月 30 17:04 authorized_keys
-rw------- 1 root root 1679 11月 30 16:59 id_rsa
-rw-r--r-- 1 root root  408 11月 30 16:59 id_rsa.pub

jenkins配置私钥凭证

jenkins设置ssh私钥连接

SSH remote hosts连接配置

Publish over SSH连接配置

1、修改服务器的root密码，不影响公私钥使用，这两种方式是独立；