vi /sbin/login.allowed
if [ -f /etc/nologin ]; then
rm /etc/nologin
fi
chmod 700 login.allowed
3. ±àдһ¸öÏÞÖÆʱ¼äµÄshell£¬È磺
vi /sbin/security
if [ -f /sbin/login.denied ]; then
at -f /sbin/login.denid 22:00
fi
if [ -f /sbin/login.allowed ]; then
at -f /sbin/login.allowed 8:00
if