普通用户crontab不执行 提示ERROR: failed to open PAM security session: Success

wsxxz

[root@localhost]# cat /var/log/cron|grep '(user)'|grep ERROR|grep 'Aug  3 19'
Aug  3 19:00:01 localhost crond[12064]: CRON (user ) ERROR: failed to open PAM security session: Success
Aug  3 19:00:01 localhost crond[12064]: CRON (user ) ERROR: cannot set security context
Aug  3 19:01:01 localhost crond[23108]: CRON (user ) ERROR: failed to open PAM security session: Success
Aug  3 19:01:01 localhost crond[23108]: CRON (user ) ERROR: cannot set security context




通过错误日志 ，查看/etc/pam.d/crond
把所有required改成sufficient就可以了，但具体原因不明确啊。。。。
[root@localhost]# cat /etc/pam.d/crond
#
# The PAM configuration file for the cron daemon
#
#
#auth      sufficient pam_rootok.so
#auth       required   pam_env.so
#auth       include    system-auth
#account    required   pam_access.so
#account    include    system-auth
#session    required   pam_loginuid.so
#session    include    system-auth
auth       sufficient pam_rootok.so
auth       sufficient  pam_env.so
auth       include    system-auth
account    sufficient   pam_access.so
account    include    system-auth
session    sufficient   pam_loginuid.so
session    include    system-auth
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