CentOS 6 에서 Zabbix 서버 에서 경 고 를 실행 하지 않 음(SMTP 전송 실패 문제 해결)

원본 주소:http://www.sysads.co.uk/2013/11/zabbix-server-running-alert/
In some occasions after installing Zabbix server, the following message gets displayed at the home screen:
Zabbix server is not running: the information displayed may not be current
This issue is related to the Linux Security Module (SELinux) which is a mandatory access control (MAC) security mechanism implemented in the kernel.
To clear the alert, follow the steps outlined below:
- First confirm that SELinux is causing this by running the following command from within Linux console: tail -f /var/log/audit/audit.log |grep -i avc
- You should see the following lines:
type=AVC msg=audit(1383850274.731:32113): avc:  denied  { name_connect } for  pid=2060 comm=”httpd” dest=10051 scontext=unconfined_u:system_r:httpd_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=tcp_socket
The best and recommended option to fixing this is to add a policy to allow the connection
- Run the command “getsebool -a“. Locate the following line which should give you a value ‘–> off“ httpd_can_network_connect --> off
- Run the command to turn it on setsebool httpd_can_network_connect on

- Now run the command “ getsebool httpd_can_network_connect “. The result should now indicate that the policy is now set to ON setsebool -P httpd_can_network_connect on
Now the Zabbix alert message should disappear and also the “Zabbix server is running” value should now show ‘Yes‘
위 설정 을 마 친 후 HTTPD 서 비 스 를 다시 시작 한 후 테스트 합 니 다.SMTP 를 보 낼 수 없 으 면 setsebool-P httpd 를 추가 합 니 다.can_sendmail=1 명령 을 내리 고 HTTPD 서 비 스 를 다시 시작 하면 됩 니 다.