手册页说：

lockscreen

Lock this display. Call a screenlock
program (/local/bin/lck or
/usr/bin/lock or a builtin if no other
is available). Screen does not accept
any command keys until this program
terminates. Meanwhile processes in the
windows may continue,as the windows
are in the `detached’ state. The
screenlock program may be changed
through the environment variable
$LOCKPRG (which must be set in the
shell from which screen is started)
and is executed with the user’s uid
and gid. Warning: When you leave other
shells unlocked and you have no
password set on screen,the lock is
void: One could easily re-attach from
an unlocked shell. This feature should
rather be called ‘lockterminal’.

如果我登录Linux控制台启动屏幕,然后锁定会话然后离开,那么一个人可以退出屏幕并使用我的凭据下的系统.手册页上面的部分对我来说并不完全清楚.假设攻击者没有其他系统访问权限,他们将不会重启系统.