Nagios Support Forum

Sharing your ssl config for apache would also be helpful. it should have a VirtualHost directive in it with port 443.

Please find the SSL configuration as requested

Just a couple of things I'm noticing, that may be nothing, and I'm not expecting them to be anything since the tls/ssl is negotiating correctly. It looks like the CA and CA certificate chain files are commented out. Does /etc/pki/tls/certs/SocAvailMonitor1.schneider-electric.com.crt contain the entire certificate chain?

It also looks like you have this set: SSLPassPhraseDialog exec:/usr/local/nagios/libexec/passphrase-file. Is your key file secured with a password? Again since SSL and TLS seem to be working, I'm going to guess that this is not the case. Even with the 403 error you ought to be able to check this in a browser.

Do you still have your httpd and ssl config files from the pre-migration server that you could compare to these.

Alternately, try changing the LogLevel line in the SSL configuration to something more verbose to see if we can't track down why you're getting a 403 error. See the apache guide here: https://httpd.apache.org/docs/2.4/mod/c ... l#loglevel

Reconfiguring the SSL configuration based on the instructions provided in https://answerhub.nagios.com/support/s/ ... 4-de3cd2cd helped me to resolve the UI issue.

Still not sure whether it is the API versions in the virtual host entries or changes made in /etc/httpd/conf.d/nagiosxi.conf file resolved the issue.

For now the issue is resolved.

Thanks everyone for your wonderful support.

We're glad you got this sorted out! I will lock the thread now.