How to know what user belongs to what ip on debian

Question

is there a way to get an overview of users logged in on my server and the ip they are connecting from ?

I have the IP already, I want the user that is associated with it :)

jscott · Accepted Answer · 2011-08-17 12:54:13Z

up vote 33 down vote accepted

w

answered Aug 17 '11 at 12:54

jscott
13.4k42652

wow, as simple as one letter – Lucas Kauffman Aug 17 '11 at 12:57

18

+1 for the smallest, valid answer ever. – SmallClanger Aug 17 '11 at 12:57

1

@SmallClanger - smallest ever, and smallest possible :) – Nixphoe Aug 17 '11 at 13:16

7

I think @jscott used a sly comment to pad his answer out. – SmallClanger Aug 17 '11 at 13:24

1

I would like to flag this answer as 'awesome' – mfinni Aug 22 '11 at 20:55

EightBitTony · Answer 2 · 2011-08-17 12:40:54Z

up vote 11 down vote

Use the who command. It lists everyone logged in, their terminal and their source hostname/ip address.

answered Aug 17 '11 at 12:40

EightBitTony
6,099926

wolfric · Answer 3 · 2011-08-18 22:04:12Z

up vote 2 down vote

in addition to w and who, last - recent logins with ips lastlog - list of all users with the last ip they were logged in from

answered Aug 18 '11 at 22:04

wolfric
862

warren · Answer 4 · 2011-08-22 20:04:22Z

up vote 2 down vote

In addition to w¹ and who², you may also look at finger³.

answered Aug 22 '11 at 20:04

warren
5,25542761

4 Answers