Network & Systems Administrator 网络系统维护专员
Network Systems Administrator 网络系统管理
Network and computer systems administrator 网络和计算机系统管理员
grey-hats hack systems illegally, but with the intention of notifying the system administrator of the flaws in their network.
灰帽黑客，他也非法进入他人系统，但是只是提醒系统管理员他们网络系统有缺陷。
If you have been a UNIX systems administrator for a while, you are probably familiar with the ifconfig command as a means of bringing up and taking down network interfaces.
如果您作为UNIX系统管理员已经有一段时间了，可能很熟悉用ifconfig命令启动和关闭网络接口。
应用推荐