ssh证书认证登陆

服务器与服务器进行scp,备份时都需要密码的认证造成了很多不便，以及安全的隐患，利用ssh的证书认证可以方便的进行备份与拷贝，提高了安全性能。方法如下： 在服务器A上：创建密钥[root@localhost ~]# ssh-keygen -t rsa
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:
然后进行scp id_rsa.pub ip:.ssh/authorized_keys拷贝到服务器B上，然后再服务器B上重复A的操作即完成双向认证。注：如果没有root下没有.ssh请建立一个即可。本文出自 “mcshell学习博客” 博客，请务必保留此出处http://mcshell.blog.51cto.com/803455/498468