well, technically it has two IP addresses. the machine has two NICs, configured with one public IP address and one private IP address. it is set up to listen for internet traffic on the public IP and local network traffic on the private IP.
Apache and pretty much most all other services are set up to listen on both interfaces. could this be causing a problem? the current apache config doesn't name any addresses specifically, it uses *:80 and *:443 for pretty much everything.
what i can't figure out is where that error "Multiple RSA server certificates not allowed" is coming from when we load SSLEngine On. we've tried using Listen 443 https in listen.conf but that returns the same error. my guess is, it's calling SSL from somewhere else during apache's initial startup, but buggered if i can see where.