nagios+cacti构建网络监控系统-->cacti添加监控

配置好cacti环境后，就可以在页面上添加linux服务状态监控了，下面是添加步骤：
1.输入cacti管理员账号密码进入管理页面，配置调用工具





2.工具配置结束后，开始添加监控









3.将添加的监控放入图像监控控制台


4.显示图像，进行浏览


如果配置都没有问题的话，这里图像会等一会才显示出来。



client端，配置snmp

# yum -y install \*snmp\*
# vi /etc/snmp/snmpd.conf
com2sec notConfigUser 192.168.1.102 bbk
这里ip是server的ip,bbk是community的名字，可以自己创建，与cacti管理画面添加监控时相对应
# service snmpd start

server端测试client snmp

# /usr/local/net-snmp/bin/snmpwalk -v 2c -c bbk 192.168.1.103
SNMPv2-MIB::sysDescr.0 = STRING: Linux www.rhce.dd 2.6.32-279.el6.x86_64 #1 SMP Wed Jun 13 18:24:36 EDT 2012 x86_64
SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (39222018) 4 days, 12:57:00.18
SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
SNMPv2-MIB::sysName.0 = STRING: www.rhce.dd
SNMPv2-MIB::sysLocation.0 = STRING: Unknown (edit /etc/snmp/snmpd.conf)
SNMPv2-MIB::sysORLastChange.0 = Timeticks: (1) 0:00:00.01
SNMPv2-MIB::sysORID.1 = OID: SNMP-MPD-MIB::snmpMPDMIBObjects.3.1.1
SNMPv2-MIB::sysORID.2 = OID: SNMP-USER-BASED-SM-MIB::usmMIBCompliance
SNMPv2-MIB::sysORID.3 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance
SNMPv2-MIB::sysORID.4 = OID: SNMPv2-MIB::snmpMIB
SNMPv2-MIB::sysORID.5 = OID: TCP-MIB::tcpMIB
SNMPv2-MIB::sysORID.6 = OID: IP-MIB::ip
SNMPv2-MIB::sysORID.7 = OID: UDP-MIB::udpMIB
SNMPv2-MIB::sysORID.8 = OID: SNMP-VIEW-BASED-ACM-MIB::vacmBasicGroup

输出如上类似信息则说明，client配置成功了

如输出error信息，那用下面方法解决问题:
1.确认client snmpd.conf配置正确
2.iptables是否关闭
3.snmpd服务是否启动

异常排除：
1.apache日志反复报出如下error信息：

[Sun Jul 07 14:32:21 2013] [error] [client 192.168.1.100] PHP Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to u[Sun Jul 07 14:32:21 2013] [error] [client 192.168.1.100] PHP Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Chongqing' for

问题原因: php配置文件时区配置不正确
解决方法:
# vi /etc/php.ini
去掉注释，并修改时区为
date.timezone = "Asia/Shanghai"
# service httpd restart

2.cacti 不出图，rra目录下没有文件，cacti.log显示如下：

07/07/2013 02:15:01 PM - POLLER: Poller[0] ERROR: The path: is invalid. Can not continue
07/07/2013 02:19:48 PM - POLLER: Poller[0] ERROR: The path: is invalid. Can not continue
肯定是rrdtool,snmp,spine哪个工具的命令文件路径没有配置好
在cacti管理setting，PAHT中进行进行修改

3.路径修改好后，发现还是不出图，使用手工确认：

# /usr/bin/php /var/www/html/cacti/poller.php
07/07/2013 02:44:48 PM - SPINE: Poller[0] FATAL: Unable to read configuration (Spine init)
07/07/2013 02:49:47 PM - POLLER: Poller[0] Maximum runtime of 298 seconds exceeded. Exiting.
说明是spine这个工具有错误

# /usr/local/spine/bin/spine 测试spine
07/07/2013 02:50:06 PM - SPINE: Poller[0] FATAL: Unable to read configuration (Spine init)
根据输出，说明其配置文件有错误，发现没有修改配置文件名字
# mv /usr/local/spine/etc/spine.conf.dist /usr/local/spine/etc/spine.conf

# /usr/local/spine/bin/spine 再次测试spine，输出正常
SPINE: Using spine config file [../etc/spine.conf]
SPINE: Version 0.8.8a starting
SPINE: Time: 0.8381 s, Threads: 1, Hosts: 3

# /usr/bin/php /var/www/html/cacti/poller.php 再次测试poller,输出正常，rra目录下生成了文件
刷新页面，正常出图了，问题解决