查看zabbix_agentd.log时出现下列错误
[root@zabbix.linuxidc.com ~]# tail /var/log/zabbix/zabbix_agentd.log
1266:20140523:063554.157 no active checks on server [127.0.0.1:10051]: host [zabbix.linuxidc.com] not found
出现该错误的原因是一般是zabbix_agentd.conf里面的Hostname和前端zabbix web里面的配置不一样所造成的，即在zabbix web页面Monitoring->Configuration->Hosts 页面的Name和zabbix_agentd.conf里面的Hostname要一样。
解决方法：
1.查看zabbix_agentd.conf文件中的Hostname
[root@bjsd-zabbix-x86v-app01 ~]# cat /etc/zabbix/zabbix_agentd.conf | grep Hostname
### Option: Hostname
# Value is acquired from HostnameItem if undefined.
# Hostname=
Hostname=zabbix.linuxidc.com
### Option: HostnameItem
# Item used for generating Hostname if it is undefined. Ignored if Hostname is defined.
# HostnameItem=system.hostname
# Aliases can be used in HostMetadataItem but not in HostnameItem parameters.
2.在zabbix web页面Monitoring->Configuration->Hosts 页面更改Host name和zabbix_agentd.conf里面的Hostname一样。
3.重新启动zabbix-agent服务
[root@zabbix ~]# service zabbix-agent restart
Shutting down Zabbix agent: [ OK ]
Starting Zabbix agent: [ OK ]
4.再次查看日志文件
[root@bjsd-zabbix-x86v-app01 ~]# tail /var/log/zabbix/zabbix_agentd.log
1262:20140523:063900.738 Got signal [signal:15(SIGTERM),sender_pid:2615,sender_uid:0,reason:0]. Exiting ...
1257:20140523:063900.741 Got signal [signal:15(SIGTERM),sender_pid:2615,sender_uid:0,reason:0]. Exiting ...
1257:20140523:063900.762 Zabbix Agent stopped. Zabbix 2.2.3 (revision 44105).
2627:20140523:063900.929 Starting Zabbix Agent [zabbix.linuxidc.com]. Zabbix 2.2.3 (revision 44105).
2627:20140523:063900.929 using configuration file: /etc/zabbix/zabbix_agentd.conf
2628:20140523:063900.941 agent #0 started [collector]
2630:20140523:063900.943 agent #2 started [listener #2]
2629:20140523:063900.944 agent #1 started [listener #1]
2631:20140523:063900.947 agent #3 started [listener #3]
2632:20140523:063900.948 agent #4 started [active checks #1]
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