title: Failed to start Zabbix Agent for every 10 seconds
body: <p>I am using centos 7.</p>
  <p>How did I check the log.</p>
  <pre><code>journalctl -xe
  </code></pre>
  <p>What I got from the log.(I saw the same log every 10 seconds.)</p>
  <pre><code>Oct 02 10:19:51 lp01.localdomain systemd[1]: zabbix-agent.service holdoff time over, scheduling restart.
  Oct 02 10:19:51 lp01.localdomain systemd[1]: Starting Zabbix Agent...
  -- Subject: Unit zabbix-agent.service has begun start-up
  -- Defined-By: systemd
  -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
  --
  -- Unit zabbix-agent.service has begun starting up.
  Oct 02 10:19:51 lp01.localdomain zabbix_agentd[8985]: zabbix_agentd [8987]: cannot open &quot;/var/log/zabbix/zabbix_agentd.log&quot;: [13] Permission denied
  Oct 02 10:19:51 lp01.localdomain systemd[1]: PID file /run/zabbix/zabbix_agentd.pid not readable (yet?) after start.
  Oct 02 10:19:51 lp01.localdomain systemd[1]: zabbix-agent.service never wrote its PID file. Failing.
  Oct 02 10:19:51 lp01.localdomain systemd[1]: Failed to start Zabbix Agent.
  -- Subject: Unit zabbix-agent.service has failed
  -- Defined-By: systemd
  -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
  --
  -- Unit zabbix-agent.service has failed.
  --
  -- The result is failed.
  Oct 02 10:19:51 lp01.localdomain systemd[1]: Unit zabbix-agent.service entered failed state.
  Oct 02 10:19:51 lp01.localdomain systemd[1]: zabbix-agent.service failed.
  </code></pre>
  <p>So I checked &quot;/var/log/zabbix/zabbix_agentd.log&quot; file first.</p>
  <pre><code>ll /var/log/zabbix/zabbix_agentd.log
  </code></pre>
  <p>But it said No such file or directory.</p>
  <pre><code>ls: cannot access /var/log/zabbix/zabbix_agentd.log: No such file or directory
  </code></pre>
  <p>and then I checked &quot;/run/zabbix/zabbix_agentd.pid&quot; file.</p>
  <pre><code>ll /run/zabbix/zabbix_agentd.pid
  </code></pre>
  <p>It also said No such file or directory.</p>
  <pre><code>ls: cannot access /run/zabbix/zabbix_agentd.pid: No such file or directory
  You have new mail in /var/spool/mail/root
  </code></pre>
  <p>I checked if Selinux is running.</p>
  <pre><code>getenforce
  </code></pre>
  <p>and it said Selinux is Disabled..</p>
  <p>My questions are</p>
  <ol>
  <li>How can I start zabbix?</li>
  <li>If I can't start zabbix, can I stop zabbix from starting-failing every 10 seconds?</li>
  </ol>
  <p>Thank you.</p>