背景 查看阿里云ECS服务器日志发现如下: 1 2 3 4 5 6 7 type=USER_AUTH msg=audit(1491669519.156:15631): pid=22938 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:authentication acct="deploy" exe="/usr/sbin/sshd" hostname=123.57.245.163 addr=123.57.245.163 terminal=ssh res=failed' type=USER_LOGIN msg=audit(1491669519.156:15632): pid=22938 uid=0 auid=4294967295 ses=4294967295 msg='op=login acct=28696E76616C6964207573657229 exe="/usr/sbin/sshd" hostname=? addr=123.57.245.163 terminal=sshd res=failed' type=USER_LOGIN msg=audit(1491669587.368:15634): pid=22940 uid=0 auid=4294967295 ses=4294967295 msg='op=login acct=28756E6B6E6F776E207573657229 exe="/usr/sbin/sshd" hostname=? addr=123.57.245.163 terminal=sshd res=failed' type=USER_LOGIN msg=audit(1491669587.368:15635): pid=22940 uid=0