SSL Cert failto make connection

This support forum board is for support questions relating to Nagios XI, our flagship commercial network monitoring solution.
vhoover
Posts: 123
Joined: Mon Sep 09, 2013 12:17 pm

Re: SSL Cert failto make connection

Post by vhoover »

slansing wrote:I was more referring to the web server's port / cert configuration and usage. NSClient should not be required as this is an active http check initiated from the Nagios server, it is not communicating with NSClient at all.
I appologize then, I not sure exactly what it is your looking for.
User avatar
lmiltchev
Bugs find me
Posts: 13589
Joined: Mon May 23, 2011 12:15 pm

Re: SSL Cert failto make connection

Post by lmiltchev »

I believe slansing was trying to explain that:

1. This doesn't seem to be a nagios (or check_http) problem, but rather it is an issue, specific to your SSL certificate.
2. This check has nothing to do with NSClient++.
Be sure to check out our Knowledgebase for helpful articles and solutions!
vhoover
Posts: 123
Joined: Mon Sep 09, 2013 12:17 pm

Re: SSL Cert failto make connection

Post by vhoover »

I cannot believe that there is a problem with the certificate as it is a wildcard cert used on around 20 servers, give or take. I have verified the cert is installed the same as it is on any other server with that same cert and OS version.
slansing
Posts: 7698
Joined: Mon Apr 23, 2012 4:28 pm
Location: Travelling through time and space...

Re: SSL Cert failto make connection

Post by slansing »

No what I was trying to make a point of, is that this is most likely an issue with the web server on your remote host.. Please run this command against one of your other windows web servers that is working fine:

Code: Select all

openssl s_client -connect addr:443
vhoover
Posts: 123
Joined: Mon Sep 09, 2013 12:17 pm

Re: SSL Cert failto make connection

Post by vhoover »

slansing wrote:No what I was trying to make a point of, is that this is most likely an issue with the web server on your remote host.. Please run this command against one of your other windows web servers that is working fine:

Code: Select all

openssl s_client -connect addr:443
When I run it against another web server with the same certificate and same Operating System and Patches, it is successful, but when I run it against any of the 5 web servers I am having issue with I get the following:

openssl s_client -connect X.X.X.X:443
CONNECTED(00000003)
write:errno=104
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 113 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
---

I guess the web developers did something different with theses servers, is there any places I should start looking?
slansing
Posts: 7698
Joined: Mon Apr 23, 2012 4:28 pm
Location: Travelling through time and space...

Re: SSL Cert failto make connection

Post by slansing »

This was checked a few pages ago.. and is something you would need to talk to your network team about and is the entire problem here as we see it now. Unfortunately we really don't have good advice on where to look or who to talk to as it is an internal network / cert issue.
vhoover
Posts: 123
Joined: Mon Sep 09, 2013 12:17 pm

Re: SSL Cert failto make connection

Post by vhoover »

OK Thanks.
abrist
Red Shirt
Posts: 8334
Joined: Thu Nov 15, 2012 1:20 pm

Re: SSL Cert failto make connection

Post by abrist »

Let us know how this issue proceeds.
Former Nagios employee
"It is turtles. All. The. Way. Down. . . .and maybe an elephant or two."
VI VI VI - The editor of the Beast!
Come to the Dark Side.
vhoover
Posts: 123
Joined: Mon Sep 09, 2013 12:17 pm

Re: SSL Cert failto make connection

Post by vhoover »

The company has decided that since the load balance device is watched for SSL cert expiration, the individual box does not need it.
abrist
Red Shirt
Posts: 8334
Joined: Thu Nov 15, 2012 1:20 pm

Re: SSL Cert failto make connection

Post by abrist »

Fair enough. Can we close this thread?
Former Nagios employee
"It is turtles. All. The. Way. Down. . . .and maybe an elephant or two."
VI VI VI - The editor of the Beast!
Come to the Dark Side.
Locked