Five users logged into my machine at one time? How?

[Christop54]

Gkrellm shows 101 procs running and five users....huh? Five users? How can this be? I only have one machine that's connected to net through a router and cable modem. Have I been hacked? Here is what I get when I run top:

top - 17:31:36 up 33 min,  5 users,  load average: 2.27, 2.16, 1.50
Tasks:  89 total,   2 running,  87 sleeping,   0 stopped,   0 zombie
Cpu(s): 25.9% us,  2.7% sy, 71.4% ni,  0.0% id,  0.0% wa,  0.0% hi,  0.0% si
Mem:    515388k total,   507664k used,     7724k free,    28300k buffers
Swap:  1048568k total,        0k used,  1048568k free,   313584k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 5862 christop  39  19 18928  15m 1140 R 71.5  3.1  12:39.01 setiathome_4.02
 5720 christop  15   0  108m  42m  18m S 16.6  8.5   2:00.84 firefox-bin
 4411 root          15   0  155m  22m 5292 S  8.6  4.5   0:37.03 X
 5117 christop  15   0 24992 7256 5796 S  0.7  1.4   0:03.80 gkrellm
 5136 christop  15   0 49720  10m 7648 S  0.7  2.1   0:13.56 xmms
 5048 christop  15   0 10764 6612 4832 S  0.3  1.3   0:11.07 artsd
 5074 christop  15   0 30432  15m  12m S  0.3  3.1   0:01.61 kdeinit
 6165 root         16   0  3008  936  744 R  0.3  0.2   0:00.06 top
    1 root             16   0  1684  544  472 S  0.0  0.1   0:00.81 init
    2 root             34  19     0    0    0 S  0.0  0.0   0:00.00 ksoftirqd/0
    3 root             10  -5     0    0    0 S  0.0  0.0   0:00.08 events/0
    4 root             16  -5     0    0    0 S  0.0  0.0   0:00.01 khelper
    9 root             10  -5     0    0    0 S  0.0  0.0   0:00.00 kthread
   18 root            20  -5     0    0    0 S  0.0  0.0   0:00.00 kacpid
  136 root          10  -5     0    0    0 S  0.0  0.0   0:00.00 kblockd/0

This is what I get when I run last:

[root@DarkTower ~]# last
christop pts/4                         Mon May  2 17:25   still logged in
christop pts/3                         Mon May  2 16:59   still logged in
christop pts/2                         Mon May  2 16:59   still logged in
christop pts/1                         Mon May  2 16:59   still logged in
christop :0                            Mon May  2 16:59   still logged in
reboot   system boot  2.6.11-1.14_FC3  Mon May  2 16:58          (00:46)
christop pts/3                         Sun May  1 21:35 - 07:24  (09:49)
christop pts/2                         Sun May  1 21:35 - 07:24  (09:49)
christop pts/1                         Sun May  1 21:34 - 07:24  (09:49)
christop :0                            Sun May  1 21:34 - 07:24  (09:49)
reboot   system boot  2.6.11-1.14_FC3  Sun May  1 21:34          (09:50)
christop pts/3                         Sun May  1 21:09 - 21:32  (00:22)
christop pts/2                         Sun May  1 21:09 - 21:32  (00:22)
christop pts/1                         Sun May  1 21:09 - 21:32  (00:22)
christop :0                            Sun May  1 21:09 - 21:32  (00:23)
reboot   system boot  2.6.11-1.14_FC3  Sun May  1 21:08          (00:23)
christop :0                            Sun May  1 16:22 - down   (00:03)
reboot   system boot  2.6.11-1.14_FC3  Sun May  1 16:21          (00:04)
christop pts/4                         Sun May  1 15:27 - 15:35  (00:08)
christop pts/4                         Sun May  1 15:21 - 15:24  (00:03)
christop pts/5                         Sun May  1 15:09 - 15:10  (00:00)

[Ned Slider]

[root@DarkTower ~]# last
christop pts/4                         Mon May  2 17:25   still logged in
christop pts/3                         Mon May  2 16:59   still logged in
christop pts/2                         Mon May  2 16:59   still logged in
christop pts/1                         Mon May  2 16:59   still logged in
christop :0                            Mon May  2 16:59   still logged in

Well there are your 5 users - you 5 times. I think :0 is your main X session and looks like you have 4 terminal windows open (pts/1 to pts/4) which each count as a user giving 5 in total. Looks perfectly normal to me

Ned

[Provicemo]

It counts terminals that why.
Open and bunch of terminals and you'll see it grow.

users prints who's currently logged in by the way.

[Christop54]

Thanks guys!

users prints who's currently logged in by the way.

I was wondering if there was such a command:

[christop54@DarkTower ~]$ users
christop54 christop54 christop54 christop54 christop54
[christop54@DarkTower ~]$

[Ned Slider]

users prints who's currently logged in by the way.

Yep, and who and whoami can also be useful