CentOS: keychainでssh-agentを管理

# yum install keychain

ログイン時に実行するコマンドを設定

$ vi ~/.bash_profile

以下の2行を追加

/usr/bin/keychain ~/.ssh/id_rsa
source ~/.keychain/$HOSTNAME-sh

一旦ログアウトしてログインしてみる(PuTTYの例)。

login as: hnakamur
Authenticating with public key "imported-openssh-key" from agent
Last login: Sat Sep 25 15:49:51 2010 from 192.168.11.2

 * keychain 2.7.0 ~ http://www.funtoo.org
 * Found existing ssh-agent: 3594
 * Adding 1 ssh key(s): /home/hnakamur/.ssh/id_rsa
Enter passphrase for /home/hnakamur/.ssh/id_rsa: パスワードを入力
 * ssh-add: Identities added: /home/hnakamur/.ssh/id_rsa

[hnakamur@sunshine12 ~]$ ssh vm01
Last login: Sat Sep 25 15:47:14 2010 from 192.168.122.1
[hnakamur@vm01 ~]$ パスワード入力せずにログインできた

参考：keychain: Set Up Secure Passwordless SSH Access For Backup Scripts