CentOS配置SSH免密碼登入後,仍提示輸入密碼

第一步、生成公鑰和私鑰

ssh-keygen -t dsa -p '' -f ~/.ssh/id_dsa

預設在 ~/.ssh目錄生成兩個檔案：

id_rsa ：私鑰

id_rsa.pub ：公鑰

第二步、匯入公鑰到認證檔案

如果是進行本機免密碼登入，則敲入以下命令

cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys

如果是登入遠端主機免密碼登入，則匯入要免密碼登入的伺服器

首先將認證檔案複製到伺服器

scp ~/.ssh/authorized_keys ***@主機名:/home/***/.ssh/

一般以上幾步就ok了，但我的仍要輸入密碼，這個問題折磨了一上午終於在網上找到了解決方法，

用root使用者登陸檢視系統的日誌檔案：$tail /var/log/secure -n 20

oct 7 10:26:43 masterserver sshd[2734]: authentication refused: bad ownership or modes for file /home/sun/.ssh/authorized_keys

oct 7 10:26:48 masterserver sshd[2734]: accepted password for sun from ::1 port 37456 ssh2

oct 7 10:26:48 masterserver sshd[2734]: pam_unix(sshd:session): session opened for user sun by (uid=0)

oct 7 10:36:30 masterserver sshd[2809]: accepted password for sun from 192.168.1.241 port 36257 ssh2

oct 7 10:36:30 masterserver sshd[2809]: pam_unix(sshd:session): session opened for user sun by (uid=0)

oct 7 10:38:28 masterserver sshd[2857]: authentication refused: bad ownership or modes for directory /home/sun/.ssh

chmod 700 ~/.ssh

chmod 600 ~/.ssh/authorized_keys

再次登入則不需要密碼就可以登入