Thursday, May 21, 2015

Ubuntu 15.04, OpenFire and "Unable to validate certificate" problem

While Upgrading to OpenFire 3.10 from 3.9, I encountered this error on my clients running either pidgin or empathy. I'm running OpenFire with a mix of Empathy and Pidgin clients on a corporate LAN.

Took me a bit for figure out that the certificates isn't the problem but the names. Here's the steps, I did:

1. Check your OpenFire server settings and look for the xmpp.domain value. Remember that value.

2. In the clients, flush the certificates folder; I'm running linux so that folder is ~/.purple/certificates/. In hindsight, I think this step can be skipped because I think Empathy or Pidgin overwrites the folder with the most current certificate.

3. Make sure clients don't log in using the ip address. So no accounts in the form of, username@10.209.70.19 but rather username@xmpp.domain. (so if your xmpp.domain is appsvr1 then the username is username@appsvr1). 

4. Edit the host file to satisfy the FQDN requirement. Assuming that your OpenFire server is at 10.209.70.19 and the xmpp.domain is appsvr1, the you have a host entry of 10.209.70.19 appsvr1. You basically alias it.

My users now can bother me again. 

Haiz...


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