Failing to change default passwords,reusable passwords,mis-configured anonymous File Transfer Protocol,inappropriate file and directory protections,and running vulnerable network protocols or services are among the mistakes network administrators make.

• 不改变缺省的口令、重复使用口令、错误配置不记名的文件传输协议、不适当的文件和目录保护以及运行脆弱的网络协议或服务都是网络管理员常犯的错误。