Centos日志处理

今天检查系统日志发现有,日志中都是以下格式的日志:

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Apr 22 09:26:26 jsmapp4 xinetd[3158]: EXIT: nrpe status=0 pid=14006 duration=0(sec)

Apr 22 09:26:27 jsmapp4 xinetd[3158]: EXIT: nrpe status=0 pid=14316 duration=1(sec)

Apr 22 09:26:27 jsmapp4 xinetd[3158]: EXIT: nrpe status=0 pid=14323 duration=1(sec)

Apr 22 09:26:27 jsmapp4 xinetd[3158]: START: nrpe pid=15937 from=::ffff:192.168.1.60

Apr 22 09:26:27 jsmapp4 xinetd[3158]: EXIT: nrpe status=0 pid=15937 duration=0(sec)

Apr 22 09:27:19 jsmapp4 pptp[27991]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.

Apr 22 09:27:26 jsmapp4 xinetd[3158]: START: nrpe pid=7318 from=::ffff:192.168.1.60

Apr 22 09:27:26 jsmapp4 xinetd[3158]: START: nrpe pid=7327 from=::ffff:192.168.1.60

Apr 22 09:27:26 jsmapp4 xinetd[3158]: START: nrpe pid=7332 from=::ffff:192.168.1.60

Apr 22 09:27:26 jsmapp4 xinetd[3158]: EXIT: nrpe status=0 pid=7318 duration=0(sec)

Apr 22 09:27:26 jsmapp4 xinetd[3158]: EXIT: nrpe status=0 pid=7327 duration=0(sec)

Apr 22 09:27:26 jsmapp4 xinetd[3158]: EXIT: nrpe status=0 pid=7332 duration=0(sec)

Apr 22 09:27:26 jsmapp4 xinetd[3158]: START: nrpe pid=7652 from=::ffff:192.168.1.60

Apr 22 09:27:26 jsmapp4 xinetd[3158]: EXIT: nrpe status=0 pid=7652 duration=0(sec)

Apr 22 09:27:27 jsmapp4 xinetd[3158]: START: nrpe pid=8952 from=::ffff:192.168.1.60

Apr 22 09:27:27 jsmapp4 xinetd[3158]: EXIT: nrpe status=0 pid=8952 duration=0(sec)

 

通过分析以上日志发现:

xinetd是新一代的网络守护进程服务程序,又叫超级Internet服务器,常用来管理多种轻量级Internet服务。

这个进程来自于192.168.1.60这个ip,明显是内网ip,以前没有发现这个问题,奇怪。

去60这台服务器查看发现,有nagios警告的日志:

Apr 22 09:50:02 jsmbak1 nagios: Warning: The check of host 'jsmapp1' looks like it was orphaned (results never came back).  I'm scheduling an immediate check of the host...

Apr 22 09:50:24 jsmbak1 nagios: Warning: The check of service 'check_mem' on host 'jsmapp4' looks like it was orphaned (results never came back).  I'm scheduling an immediate check of the service...

Apr 22 09:51:02 jsmbak1 nagios: Warning: The check of service 'Current Load' on host 'Nagios-Server' looks like it was orphaned (results never came back).  I'm scheduling an immediate check of the service...

Apr 22 09:51:02 jsmbak1 nagios: Warning: The check of service 'SSH' on host 'Nagios-Server' looks like it was orphaned (results never came back).  I'm scheduling an immediate check of the service...

Apr 22 09:51:02 jsmbak1 nagios: Warning: The check of service 'Total Processes' on host 'Nagios-Server' looks like it was orphaned (results never came back).  I'm scheduling an immediate check of the service...

Apr 22 09:51:02 jsmbak1 nagios: Warning: The check of service 'HTTP' on host 'jsmapp2' looks like it was orphaned (results never came back).  I'm scheduling an immediate check of the service...

Apr 22 09:51:02 jsmbak1 nagios: Warning: The check of service 'HTTP' on host 'jsmapp3' looks like it was orphaned (results never came back).  I'm scheduling an immediate check of the service...

Apr 22 09:51:46 jsmbak1 xinetd[16796]: START: nrpe pid=17625 from=::ffff:127.0.0.1

Apr 22 09:51:46 jsmbak1 xinetd[16796]: EXIT: nrpe status=0 pid=17625 duration=0(sec)

Apr 22 09:52:50 jsmbak1 xinetd[16796]: START: nrpe pid=17890 from=::ffff:127.0.0.1

Apr 22 09:52:50 jsmbak1 xinetd[16796]: EXIT: nrpe status=0 pid=17890 duration=0(sec)

 

Nagios是一款开源的免费网络监视工具,能有效监控Windows、Linux和Unix的主机状态、交换机、路由器等网络设置,打印机等。

Nagios可以监控的功能有: 

1、监控网络服务(SMTP、POP3、HTTP、NNTP、PING等);

2、监控主机资源(处理器负荷、磁盘利用率等);

3、简单地插件设计使得用户可以方便地扩展自己服务的检测方法;

4、并行服务检查机制;

5、具备定义网络分层结构的能力,用"parent"主机定义来表达网络主机间的关系,这种关系可被用来发现和明晰主机宕机或不可达状态;

6、当服务或主机问题产生与解决时将告警发送给联系人(通过EMail、短信、用户定义方式);

7、具备定义事件句柄功能,它可以在主机或服务的事件发生时获取更多问题定位;

8、自动的日志回滚;

9、可以支持并实现对主机的冗余监控;

10、可选的WEB界面用于查看当前的网络状态、通知和故障历史、日志文件等;

 

查看nagios进程发现,有多个进程

[root@jsmbak1 ~]# ps -ef|grep "bin/nagios"

root      4913  4095  0 11:12 pts/2    00:00:00 grep bin/nagios

nagios    5146     1  0 Feb18 ?        01:12:40 /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg

nagios    5286     1  0 Feb19 ?        01:15:13 /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg

nagios    9767     1  0 Feb18 ?        01:13:52 /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg

 

使用[nagios@jsmbak1 ~]$ killall nagios,杀掉所有nagios,然后重启

/usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg

 

如果想停止nrpe服务在xinetd下的日志输出

修改配置文件,禁用成功状态下的日志

 

[root@jsmapp3 tomcat]# vi /etc/xinetd.conf

# Define general logging characteristics.

        log_type        = SYSLOG daemon info

        log_on_failure  = HOST

#       log_on_success  = PID HOST DURATION EXIT

 

重新服务xinetd后再次查看日志,不再出现nrpe相关日志

[root@jsmapp3 tomcat]# service xinetd restart

Stopping xinetd: [  OK  ]

Starting xinetd: [  OK  ]


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