Linux系统最近重启时间、错误日志

CentOS踢出已登录用户的方法

# pkill -KILL -t pts/0

[root@localhost ~]# last reboot
reboot   system boot  2.6.18-164.el5   Wed Dec 22 20:19          (12:58)
reboot   system boot  2.6.18-164.el5   Wed Nov 10 10:41         (42+09:17)
reboot   system boot  2.6.18-164.el5   Tue Oct 26 19:49         (14+14:42)
reboot   system boot  2.6.18-164.el5   Fri Oct 22 00:22         (4+19:21)
reboot   system boot  2.6.18-164.el5   Thu Oct 21 03:47         (5+15:56)
reboot   system boot  2.6.18-164.el5   Wed Oct 20 23:43         (5+20:00)
reboot   system boot  2.6.18-164.el5   Sat Sep 18 20:31         (37+23:12)

在2010-12-22 20:19 重启了系统
可以看到正常命令重启显示为down,而电源强制重启为crash。

查看最近用户登录情况

[root@localhost ~]# last
oracle   pts/1        10.1.1.1         Thu Dec 23 08:59   still logged in
reboot   system boot  2.6.18-164.el5   Wed Dec 22 20:19          (12:59)
root     pts/1        10.1.1.2         Sun Dec 12 13:07 - 13:59  (00:52)
 

查看操作系统的历史命令:

[root@localhost ~]#history |more
  382  top
  383  df -lh
  384  top
  385  service iptables stop
  386  last
  387  last reboot
  388  last
  389  history
  390  history |more

在执行top命令时都可以查看系统状态,然后就出现了reboot重启系统的状况。在service iptables stop 命令之前没有查下到reboot的命令,可见是系统重启。
查看系统的日子信息:

[root@localhost ~]#cat /var/log/messages |more
Dec 20 02:46:56 localhost xinetd[5248]: EXIT: telnet status=1 pid=12350 duration
=30(sec)
Dec 22 19:59:12 localhost shutdown[32014]: shutting down for system halt
Dec 22 19:59:12 localhost pcscd: winscard.c:304:SCardConnect() Reader E-Gate 0 0
 Not Found
Dec 22 19:59:13 localhost smartd[5472]: smartd received signal 15: Terminated
Dec 22 19:59:13 localhost smartd[5472]: smartd is exiting (exit status 0)
Dec 22 19:59:14 localhost avahi-daemon[5410]: Got SIGTERM, quitting.
Dec 22 19:59:14 localhost avahi-daemon[5410]: Leaving mDNS multicast group on in
terface usb0.IPv6 with address fe80::21:5eff:fe9c:b6d7.
Dec 22 19:59:14 localhost avahi-daemon[5410]: Leaving mDNS multicast group on in
terface eth0.IPv6 with address fe80::221:5eff:fe98:b6f4.
Dec 22 19:59:14 localhost avahi-daemon[5410]: Leaving mDNS multicast group on in
terface eth0.IPv4 with address 10.132.0.162.
Dec 22 20:21:08 localhost syslogd 1.4.1: restart.
Dec 22 20:21:08 localhost kernel: klogd 1.4.1, log source = /proc/kmsg started.
Dec 22 20:21:08 localhost kernel: Linux version 2.6.18-164.el5 (mockbuild@x86-00
3.build.bos.redhat.com) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP T
ue Aug 18 15:51:48 EDT 2009

后经确认,这是在机房人为重启服务器。

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