Comments on How to Install LibreNMS Monitoring Tool with Nginx on CentOS 7

So, I went through and got to the point that you are finishing up with the nginx service, but when I go to test it, I get a failure message when I try to restart the service (right before the directions for the firewalld stuff). I went through all of the directions a few more times to see if I could be missing a ";" somewhere, and have still had no luck.

When I try running a 'systemctl status nginx.service', I get the following in the log:

Feb 09 18:52:24 libra1-business-org systemd[1]: Failed to start The nginx HTTP and reverse proxy server.

Feb 09 18:52:24 libra1-business-org systemd[1]: Unit nginx.service entered failed state.

Feb 09 18:52:24 libra1-business-org systemd[1]: nginx.service failed.

When I run 'journalctl -xe', I get the following:

Feb 09 18:54:37 libra1-business-org nginx[5195]: nginx: the configuration file /etc/nginx/nginx.conf syntax is ok

Feb 09 18:54:37 libra1-business-org[5195]: nginx: [emerg] open() "/opt/librenms/logs/access_log" failed (13: Permission denied)

Feb 09 18:54:37 libra1-business-org[5195]: nginx: configuration file /etc/nginx/nginx.conf test failed

Feb 09 18:54:37 libra1-business-org[1]: nginx.service: control process exited, code=exited status=1

Feb 09 18:54:37 libra1-business-org[1]: Failed to start The nginx HTTP and reverse proxy server.

-- Subject: Unit nginx.service has failed

-- Defined-By: systemd

-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

-- 

-- Unit nginx.service has failed.

-- 

-- The result is failed.

Feb 09 18:54:37 libra1-business-org systemd[1]: Unit nginx.service entered failed state.

Feb 09 18:54:37 libra1-business-org systemd[1]: nginx.service failed.

Feb 09 18:54:37 libra1-business-org dbus-daemon[853]: dbus[853]: [system] Activating service name='org.fedoraproject.Setroubleshootd' (using servicehelper)

Feb 09 18:54:37 libra1-business-org dbus[853]: [system] Activating service name='org.fedoraproject.Setroubleshootd' (using servicehelper)

Feb 09 18:54:37 libra1-business-org polkitd[859]: Unregistered Authentication Agent for unix-process:5187:373466 (system bus name :1.159, object path /org/free

Feb 09 18:54:38 libra1-business-org dbus[853]: [system] Successfully activated service 'org.fedoraproject.Setroubleshootd'

Feb 09 18:54:38 libra1-business-org dbus-daemon[853]: dbus[853]: [system] Successfully activated service 'org.fedoraproject.Setroubleshootd'

Feb 09 18:54:38 libra1-business-org setroubleshoot[5201]: SELinux is preventing /usr/sbin/nginx from append access on the file access_log. For complete SELinux

Feb 09 18:54:38 libra1-business-org python[5201]: SELinux is preventing /usr/sbin/nginx from append access on the file access_log.

Could anyone point me to what I am doing wrong here or where I should start looking for errors?

I had the same issue, after religiously following the detailed instructions of the OP. There seems to be some issue with the permissions all I did was: 

chown nginx:nginx /opt/librenms/logs

chown root:root /opt/librenms/logs/access.log

chown root:root /opt/librenms/logs/error.log 

chmod -R 755 /opt/librenms/logs 

Hope that helps.

G

Excellent and very clear guideIf you get nginx: [emerg] open() "/opt/librenms/logs/access_log" failed (13: Permission denied) error this is cauised by SE linux

To fix:Install the policycoreutils-python SELinux Policy tools "yum install policycoreutils-python"Set the nginx to permisssive with "semanage permissive -a httpd_t"

[root@host /]# systemctl restart nginxJob for nginx.service failed because the control process exited with error code. See "systemctl status nginx.service" and "journalctl -xe" for details.[root@host /]# yum install -y policycoreutils-python

[root@host /]# semanage permissive -a httpd_t

[root@host /]# systemctl restart nginx

[root@host /]#

I followed these steps perfectly a few times, and can't get to the web installer. I always get the NGINX test page. Has anybody else encountered this issue?

I also have the same issue. Can't get to Librenms installer page, it takes me to centos default page. Please help.