标签：rem 关闭 password manual color protoc 手动 tools 用户名
方式1、使用ssh-keygen(1)生成并配置
（1）生成密钥对
[root@iZwz9catu2mrq92b07d1d0Z ~]# ssh-keygen -t rsa Generating public/private rsa key pair. //输入文件名称 Enter file in which to save the key (/root/.ssh/id_rsa): keys_root //输入私钥加密密码 Enter passphrase (empty for no passphrase): //再次输入密码 Enter same passphrase again: Your identification has been saved in keys_root. Your public key has been saved in keys_root.pub. The key fingerprint is: f4:f9:70:51:cf:09:f6:da:30:6a:b1:67:4f:dc:14:44 root@iZwz9catu2mrq92b07d1d0Z The key‘s randomart image is: +--[ RSA 2048]----+ | o+E | | ..ooo| | . ..o o+| | . . .+.*..| | S ++.+ +.| | .+o o | | . . | | | | | +-----------------+ //文件生成成功，keys_root为私钥，keys_root.pub为公钥 [root@iZwz9catu2mrq92b07d1d0Z ~]# ls keys_root keys_root.pub
（2）配置公钥
[root@iZwz9catu2mrq92b07d1d0Z ~]# echo -e ‘#this is keys_root‘ >> ~/.ssh/authorized_keys ; cat ~/keys_root.pub >> ~/.ssh/authorized_keys [root@iZwz9catu2mrq92b07d1d0Z ~]# cat ~/.ssh/authorized_keys #this is keys_root ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAyhp9SBxas8Nmwdi4dQfOuUULpMGRnGEFopU2DXhSF+PE/s80xrVS31Ycd5o4gU3iehKx2vo4OEB2lYZ2JCfptTc59HAj+Qwqh7i5S4YQuX/+31GkY+s8XKFR4QgH1ubQt9feU2cagfG1f+wWRsa0YtefE67Kjv6OZuKuA2bOdrAH4mzV1m71iLMUZYgaEnfJExXj2lbPAXRqCV+tdIj9h0jxhB5pQXsZ3NE38D22WYNKO4Sy8odfE7Oby1I0Emm8Uhiwqgx91HP22iY/WqzZOxeKZPF17CPWr9cChaPh9/DXM1Wd8KDCg33MO6hbpqAwh7iEughndXly0FY0oZNKnQ== root@iZwz9catu2mrq92b07d1d0Z
（3）下载私钥到本地机器，并导入到Xshell
[root@iZwz9catu2mrq92b07d1d0Z ~]# sz keys_root
方式2、使用Xshell生成并配置
[root@iZwz9catu2mrq92b07d1d0Z ~]# man ssh
1.ssh-keygen命令介绍
The user creates his/her key pair by running ssh-keygen(1). This stores the private key in ~/.ssh/identity (protocol 1), ~/.ssh/id_dsa (protocol 2 DSA), ~/.ssh/id_ecdsa (protocol 2
ECDSA), or ~/.ssh/id_rsa (protocol 2 RSA) and stores the public key in ~/.ssh/identity.pub (protocol 1), ~/.ssh/id_dsa.pub (protocol 2 DSA), ~/.ssh/id_ecdsa.pub (protocol 2 ECDSA), or
~/.ssh/id_rsa.pub (protocol 2 RSA) in the user’s home directory. The user should then copy the public key to ~/.ssh/authorized_keys in his/her home directory on the remote machine.
The authorized_keys file corresponds to the conventional ~/.rhosts file, and has one key per line, though the lines can be very long. After this, the user can log in without giving
the password.
2.authorized_keys文件介绍
~/.ssh/authorized_keys
Lists the public keys (RSA/ECDSA/DSA) that can be used for logging in as this user. The format of this file is
described in the sshd(8) manual page. This file is not highly sensitive, but the recommended permissions are
read/write for the user, and not accessible by others.
标签：rem 关闭 password manual color protoc 手动 tools 用户名
原文地址：http://www.cnblogs.com/cjh-notes/p/7865513.html
