GET ERROR_INTERNET_SECURITY_CHANNEL_ERROR image/gif https://www.domain.com/path/to/image.gif
Now the majority of our SSL certificates for the site in question are server out via a SSL accelerator on our Cisco LBAL’s but this site wasn’t. It was still using a cert on the local box. Having dug deeper I noticed that a couple of the servers had the following lines of code in whereas all the others didn’t. Due to the load balancing that solves the randomness side of it.
AddType application/x-x509-ca-cert .crt AddType application/x-pkcs7-crl .crl SSLPassPhraseDialog builtin SSLSessionCache shmcb:/var/cache/mod_ssl/scache(512000) SSLSessionCacheTimeout 300 SSLMutex default SSLRandomSeed startup file:/dev/urandom 256 SSLRandomSeed connect builtin SSLCryptoDevice builtin
Something in those lines of code causes the issues, I’m stabbing in the dark that it’s the session cache as none of the others would seem to be causing the problem. I’ve not tried line by line to find the offender. Hopefully that will help someone out as I found lots of results in Google but not many solutions!