Hi all, I have installed cups on my ISPConfig 3 server on Debian 7. apt_get update && apt-get install cups cups-client lpr When I try access the server remotely http://ip_address:613 from the browser I get an error. I can however access it via lynx from the localhost on http://localhost:631. Am I correct in saying this is a firewall issue? If so, how can I go about fixing it? Thanks in advance