释义 |
port protection device 端口保护装置 In computer security, a device connected to the communications port of a host computer that has the function of authorizing user access to the port. The PPD may operate between host and modem or between the modem and telephone set. The PPDs may have up to four typical features: (a) password tables; (b) call back to originator; (c) camouflage; (d) attack signalling and logging. 在计算机安全学中,连接到主机的通信端口,具有批准用户进入端口的功能的装置。它可安 装在主机和调制解调器之间或调制解调器和电话机之间,该装置最多具有四个特性:(1) 口令表;(2) 回叫发起人;(3) 伪装;(4) 攻击信号和记录。 |