If you are experiencing problems using the service, there are several issues you need to review. However, if you need immediate access to the catalogue you can use our Telnet version and carry out your review later. If you have an older version of the above browsers we recommend that you upgrade to a more recent version. If you are using a Java capable browser but still unable to access WebPAC, it may be due to the browser Java settings being disabled. Your browser must be set to Enable Java and Enable JavaScript .
Many organisations use firewall technologies to ensure network security.
Sometimes the way that organisational firewalls are set up prevents WebPAC from communicating directly with the computer you are using. Ask your IT Support staff if your organisation uses a firewall and if so, direct them to this page as it contains relevant information for allowing access to WebPAC from within your organisation. The end user's browser sends an HTTP request to the WebPAC URL on socket 80 . The WebPAC server receives the request and sends back an HTML document on socket 80 . The document instructs the browser to start it's Java interpreter and asks for the WebPAC client Java applet on socket 5050 .