Сервер сам перезагружается

[Urgant]

Сервер сам перезагружается
FreeBSD 6.0. Подобное было и на другом сервере FreeBSD5.X
Как видите 33 перезагрузки за 14 дней. 3-4 раза я сам перезагружал, но 30 раз почему сам перезагрузился.

Для сервера это катастрофа. Посоветйте, из-за чего может такое быть.
shutdown что значит?

Команда last дает:

adm ttyp0 my_ip Sun Aug 13 22:47 still logged in
adm ttyp0 my_ip Sun Aug 13 22:20 - 22:46 (00:26)
adm ttyp0 my_ip Sun Aug 13 22:17 - 22:19 (00:01)
reboot ~ Sun Aug 13 22:10
adm ttyp1 my_ip Sun Aug 13 20:41 - 20:49 (00:08)
adm ttyp1 my_ip Sun Aug 13 19:45 - 20:35 (00:49)
adm ttyp0 my_ip Sun Aug 13 18:47 - 21:06 (02:18)
reboot ~ Sat Aug 12 00:48
reboot ~ Fri Aug 11 21:57
reboot ~ Fri Aug 11 19:56
reboot ~ Fri Aug 11 19:20
reboot ~ Fri Aug 11 17:01
adm ttyp0 my_ip Thu Aug 10 20:11 - 20:11 (00:00)
adm ttyp0 my_ip Thu Aug 10 20:04 - 20:05 (00:01)
adm ttyp1 my_ip Thu Aug 10 18:48 - 18:49 (00:01)
adm ttyp4 my_ip Thu Aug 10 17:39 - 18:43 (01:04)
adm ttyp3 my_ip Thu Aug 10 17:38 - 18:12 (00:33)
adm ttyp2 81.222.2.34 Thu Aug 10 17:38 - 17:46 (00:08)
adm ttyp0 my_ip Thu Aug 10 17:16 - 19:44 (02:28)
adm ttyp1 my_ip Thu Aug 10 17:16 - 17:44 (00:28)
reboot ~ Thu Aug 10 17:15
shutdown ~ Thu Aug 10 17:11
adm ttyp1 my_ip Thu Aug 10 17:10 - shutdown (00:01)
adm ttyp0 my_ip Thu Aug 10 17:00 - shutdown (00:11)
reboot ~ Thu Aug 10 16:59
shutdown ~ Thu Aug 10 16:55
adm ttyp2 my_ip Thu Aug 10 16:52 - shutdown (00:03)
adm ttyp1 my_ip Thu Aug 10 16:51 - shutdown (00:04)
adm ttyp0 my_ip Thu Aug 10 16:50 - shutdown (00:05)
reboot ~ Thu Aug 10 16:49
shutdown ~ Thu Aug 10 16:45
adm ttyp1 my_ip Thu Aug 10 16:25 - shutdown (00:19)
adm ttyp0 my_ip Thu Aug 10 16:03 - shutdown (00:41)
reboot ~ Thu Aug 10 16:03
shutdown ~ Thu Aug 10 16:01
adm ttyp0 my_ip Thu Aug 10 14:36 - shutdown (01:25)
adm ttyp3 my_ip Wed Aug 9 23:22 - 00:41 (01:18)
adm ttyp2 my_ip Wed Aug 9 23:18 - 00:10 (00:52)
adm ttyp2 my_ip Wed Aug 9 22:11 - 22:13 (00:02)
adm ttyp1 my_ip Wed Aug 9 22:11 - 01:21 (03:09)
adm ttyp0 my_ip Wed Aug 9 21:56 - 00:20 (02:24)
adm ttyp1 my_ip Tue Aug 8 23:04 - 23:17 (00:13)
adm ttyp0 my_ip Tue Aug 8 23:02 - 23:17 (00:15)
adm ttyp0 my_ip Tue Aug 8 21:27 - 21:48 (00:21)
adm ttyp0 my_ip Tue Aug 8 18:58 - 21:24 (02:25)
adm ttyp0 my_ip Tue Aug 8 16:59 - 17:00 (00:00)
reboot ~ Tue Aug 8 16:55
reboot ~ Tue Aug 8 09:22
reboot ~ Tue Aug 8 07:36
reboot ~ Tue Aug 8 02:31
reboot ~ Tue Aug 8 02:01
adm ttyp0 my_ip Mon Aug 7 00:09 - 00:11 (00:01)
adm ttyp0 my_ip Mon Aug 7 00:05 - 00:07 (00:01)
adm ttyp0 my_ip Sun Aug 6 23:51 - 00:04 (00:13)
adm ttyp0 my_ip Sun Aug 6 16:53 - 16:53 (00:00)
reboot ~ Sun Aug 6 12:02
reboot ~ Sun Aug 6 04:34
adm ttyp1 my_ip Sat Aug 5 21:50 - 23:19 (01:28)
adm ttyp0 my_ip Sat Aug 5 21:35 - 00:00 (02:24)
adm ttyp0 my_ip Sat Aug 5 18:44 - 19:34 (00:50)
adm ttyp0 my_ip Sat Aug 5 17:16 - 18:06 (00:50)
reboot ~ Sat Aug 5 12:36
reboot ~ Sat Aug 5 11:21
reboot ~ Sat Aug 5 09:17
reboot ~ Sat Aug 5 00:36
reboot ~ Fri Aug 4 21:59
reboot ~ Fri Aug 4 21:12
adm ttyp0 my_ip Fri Aug 4 20:56 - 20:57 (00:00)
adm ttyp0 my_ip Fri Aug 4 20:40 - 20:41 (00:00)
adm ttyp0 my_ip Fri Aug 4 19:24 - 20:04 (00:40)
adm ttyp1 my_ip Fri Aug 4 17:52 - 17:59 (00:06)
adm ttyp1 my_ip Fri Aug 4 17:36 - 17:45 (00:09)
adm ttyp0 my_ip Fri Aug 4 16:31 - 18:43 (02:11)
reboot ~ Fri Aug 4 12:40
reboot ~ Fri Aug 4 09:54
reboot ~ Fri Aug 4 09:46
reboot ~ Fri Aug 4 04:00
reboot ~ Fri Aug 4 03:20
adm ttyp1 my_ip Thu Aug 3 20:12 - 20:31 (00:19)
adm ttyp0 my_ip Thu Aug 3 19:38 - 20:31 (00:53)
adm ttyp0 my_ip Thu Aug 3 18:51 - 19:37 (00:45)
reboot ~ Thu Aug 3 18:16
adm ttyp0 my_ip Thu Aug 3 18:02 - crash (00:13)
adm ttyp0 my_ip Thu Aug 3 17:11 - 17:30 (00:19)
reboot ~ Thu Aug 3 16:53
adm ttyp3 my_ip Thu Aug 3 16:29 - crash (00:24)
adm ttyp2 my_ip Thu Aug 3 16:29 - crash (00:24)
adm ttyp1 my_ip Thu Aug 3 16:02 - crash (00:51)
adm ttyp0 my_ip Thu Aug 3 15:47 - crash (01:06)
reboot ~ Thu Aug 3 15:25
adm ttyp0 my_ip Thu Aug 3 13:26 - 13:28 (00:01)
reboot ~ Thu Aug 3 12:32
reboot ~ Thu Aug 3 10:53
reboot ~ Thu Aug 3 09:00
reboot ~ Thu Aug 3 01:42
adm ttyp0 my_ip Wed Aug 2 21:54 - 22:23 (00:28)
adm ttyp1 my_ip Wed Aug 2 19:51 - 20:15 (00:24)
adm ttyp0 my_ip Wed Aug 2 17:53 - 21:51 (03:57)
reboot ~ Wed Aug 2 17:50
shutdown ~ Wed Aug 2 17:47
adm ttyp1 my_ip Wed Aug 2 16:01 - shutdown (01:45)
adm ttyp0 my_ip Wed Aug 2 15:39 - shutdown (02:08)
adm ttyp0 my_ip Wed Aug 2 13:35 - 13:38 (00:03)
adm ttyp0 my_ip Wed Aug 2 13:04 - 13:05 (00:01)
adm ttyp0 my_ip Tue Aug 1 21:25 - 23:22 (01:57)

[andreyk@]

shutdown - это сервер отключился
Для того чтоб понять почему падает - смотреть логи, поставить писать дамп ядра и разбирать его.

[Urgant]

Спасибо за совет.