Microsoft Encyclopedia Of Security Phần 8 docx

Rwho Rwho Rwho A UNIX command for displaying information about users logged on to a remote host.. Overview Rwho is a UNIX command that listens for the Rwhod daemon service running on re

Rwho Rwho

Rwho 

A UNIX command for displaying information about

users logged on to a remote host

Overview

Rwho is a UNIX command that listens for the Rwhod

daemon (service) running on remote hosts Rwhod peri­

odically broadcasts the user name, host name, and session

start time for all users currently logged on to the remote

host, and Rwho gathers this information and displays it

for all network hosts on which Rwhod is running While

the related Who command displays such information for a single remote host, Rwho displays such informa­ tion for all hosts that are running Rwhod On even a moderate-sized network, the broadcast traffic from such activity is considerable, and as a result best practice usually suggests that Rwhod be disabled on all systems From a security perspective this is also a good idea since an intruder could use Rwho to gather considerable information for footprinting a target network

See Also: footprinting

R 

288

Rwho Rwho

Rwho 

A UNIX command for displaying information about

users logged on to a remote host

Overview

Rwho is a UNIX command that listens for the Rwhod

daemon (service) running on remote hosts Rwhod peri­

odically broadcasts the user name, host name, and session

start time for all users currently logged on to the remote

host, and Rwho gathers this information and displays it

for all network hosts on which Rwhod is running While

the related Who command displays such information for a single remote host, Rwho displays such informa­ tion for all hosts that are running Rwhod On even a moderate-sized network, the broadcast traffic from such activity is considerable, and as a result best practice usually suggests that Rwhod be disabled on all systems From a security perspective this is also a good idea since an intruder could use Rwho to gather considerable information for footprinting a target network

See Also: footprinting

R 

288