Nagios Support Forum

OK when i got this issue again i will follow your step but one more this is public forum so how to share my attachment system profile?

You can send me (or any other member of the Nagios Support team) the profile via a private message (PM). This way, you are not going to be posting sensitive info on the public forum.

The system profile only has a short snapshot of the log file entries so there is not data for September 5th so to troubleshoot this, we will need to know the Names of the Host and Services that generated the Warnings and unknowns when the server was setup to access the internet.

What changes are you doing to allow the internet access and what device are you changing the settings on?

The error from the first post could be caused by a yum cache that needs to be cleared, run this to clean it out.
yum clean all

If there is a Proxy server available, there are some settings you can change on the Nagios server to use it.
See this article.
https://support.nagios.com/kb/article/n ... s-147.html

tgriep wrote:The system profile only has a short snapshot of the log file entries so there is not data for September 5th so to troubleshoot this, we will need to know the Names of the Host and Services that generated the Warnings and unknowns when the server was setup to access the internet.

What changes are you doing to allow the internet access and what device are you changing the settings on?

The error from the first post could be caused by a yum cache that needs to be cleared, run this to clean it out.
yum clean all

If there is a Proxy server available, there are some settings you can change on the Nagios server to use it.
See this article.
https://support.nagios.com/kb/article/n ... s-147.html

when i allow the internet to NagiosXI i got the WARNING all Host and Service

WARNING: SNMP error: No response from remote host 'x.x.x.x'

What I suspect that when the changes are done to allow the Nagios server access to the internet, it is changing the way the SNMP traffic is routed across your network.
Make sure that when you do the changes, that you are allowing port 161 UDP to route back and forth between the remote devices and the Nagios server.

Please guide me a few ways to check this issue?

I cannot as I do not know how your network is setup and what sort of device and changes you are doing to allow the Nagios server to connect to the internet.