日志位置: # Redhat or Fedora Core: /var/log/secure # Mandrake, FreeBSD or OpenBSD: /var/log/auth.log # SuSE: /var/log/messages # Mac OS X (v10.4 or greater): /private/var/log/asl.log # Mac OS X (v10.3 or earlier): /private/var/log/system.log # Debian: /var/log/auth.log