If you need immediate access to the catalogue, however, you can still use the telnet version of the library catalogue. Older versions of web browsers do not incorporate the ability to run Java applications such as WebPac. If you have an older browser version than these, we recommend that you upgrade to a more recent version. If you are using a Java capable browser but are 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. Firewalls and Dynix Java WebPac socket requirements To enable WebPac to function, sockets 80 and 5050 are required to be opened on firewalls. 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.