Library items tagged: manual

Routers are network devices that forward packets of data between different networks. A router between an organisation's LAN and JANET will not have a direct connection to every other router on the Internet. It is however possible to set up that router to forward packets to their destinations by the most efficient path. The router does this by referring to its routing tables, which list all the possible paths that data can take to get from source to destination IP address. Each router on the path repeats this process until the data reaches its final destination.
Every organisation that wishes to send and receive e-mail, or gain access to the Internet, needs a globally unique address, known as an IP address. These addresses are numeric and uniquely identify one network interface on a computer. Each address is written as four fields, separated by dots, and each field can be a number ranging from 0 to 255, e.g.
The Domain Name System (DNS) allows a computer presented with a textual name to convert or map it to the numeric IP address of another computer with which it needs to communicate, say to fetch a web page or deliver an e-mail. The process is called DNS resolution.
Primary Connections
Janet operates a fault reporting process to deal with all problems at both a network and a site level, as quickly and efficiently as possible. However, this process can only work if all Janet-connected organisations are familiar with the correct reporting routes. Reporting Problems
There are many sources of information about Janet, but it can take time to access specific details. This manual has been produced to place all essential material in one document. It is aimed at systems administrators and technical contacts at Janet sites. It is designed to work on a number of different levels and contains both non-technical and technical details.
This section is a user manual to help users with aspects of the Jisc community site Dealing with: Content Groups Login and accounts Users