一次ssh信任登录失败的排查

昨天遇到有同事帮忙看一下信任登录打通的问题，已经把跳板机的公钥加到服务器上了，但是每次登录都要输入密码。ssh -v看了一下能成功登录的机器是debug1: Next authentication method: publickeydebug1: Trying private key: /home/admin/.ssh/identitydebug1: Offering public key: /home/admin/.ssh/id_rsadebug1: Server accepts key: pkalg ssh-rsa blen 277debug1: read PEM private key done: type RSAdebug1: Authentication succeeded (publickey).debug1: channel 0: new [client-session]debug1: Entering interactive session.不能成功登录的机器是debug1: Next authentication method: publickeydebug1: Trying private key: /home/admin/.ssh/identitydebug1: Offering public key: /home/admin/.ssh/id_rsadebug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,passworddebug1: Trying private key: /home/admin/.ssh/id_dsadebug1: Next authentication method: password区别是不能成功登录的服务器没有接受到私钥。查看一下是.ssh整个目录的宿主uid是有问题：# stat .sshFile: “.ssh”Size: 4096           Blocks: 8          IO Block: 4096   目录Device: ca20h/51744d     Inode: 311305      Links: 2Access: (0755/drwxr-xr-x)  Uid: (  500/ UNKNOWN)   Gid: (  500/   XXX)Access: 2013-06-15 23:04:15.000000000 +0800Modify: 2013-04-03 11:24:29.000000000 +0800Change: 2013-06-15 23:04:15.000000000 +0800