ssh基於key認證登陸
阿新 • • 發佈:2018-01-14
我們 對稱 for dom pub ide 密鑰對 fin ## ssh基於key認證登陸
一、在客戶端生成密鑰對
一、在客戶端生成密鑰對
ssh-keygen -t rsa [-P ‘‘] [-f “~/.ssh/id_rsa"]
## -r rsa:指定算法
## -P :加對稱秘鑰口令
## -f :可以指定生成路徑
## /.ssh/id_rsa 生成秘鑰默認路徑
我們簡單操作就不加密碼了
[root@centos7 .ssh]# ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): 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:Y9ia1CPAxegHbp767h8I5iLKCpLxuHxZxB7gfWSIkLw root@centos7 The key‘s randomart image is: +---[RSA 2048]----+ |..o .oo | | o +oo.o | | oo*.o | | E .+*.= | |. oooo* S | | B .o= = o | |B o.+ + | |Bo.o . | |=o.++.. | +----[SHA256]-----+
查看生成的公鑰和私鑰
[root@centos7 .ssh]#ls
id_rsa id_rsa.pub
## id_rsa私鑰
## id_rsa.pub公鑰
二、把公鑰文件傳輸至遠程服務器
ssh-copy-id [-i [公鑰文件]] [user@]host
如果傳輸時寫時誤傳了私鑰文件系統會自動轉換成公鑰文件傳輸,不用緊張
三、測試
[root@centos5 .ssh]#ssh 192.168.27.6
Last login: Sun Jan 14 17:04:42 2018 from 192.168.27.1
[root@centos6 ~]#
登陸成功
ssh基於key認證登陸