Redirect stands for divert or forward. The redirect function is used in transmission technology and telecommunications in various applications. Some transmission protocols have a redirect function for optimal routing.
- In communication technology, a redirect is the forwarding of a message to the recipient(s), for example, in an e-mail service. Other recipients are not named in the messages.
- In telecommunications, a redirect can be call forwarding or call forwarding.
- As for the protocol world, some routing protocols have redirect algorithms that allow them to switch the optimal route. For example, in the Internet Control Message Protocol( ICMP), where a router tells a host a more effective route.
- Redirect also exists in the web world with DNS redirect. This is the immediate or automatic redirection of a visitor to another website. Thus, visitors can be redirected from a website with a high ranking index to one with a low one. This technique is used, among other things, in hijacking, which is the hijacking of Internet addresses. The redirect function can be activated instantaneously, after a certain time or in case of an error message. The situation is different with DNS poisoning, where attackers have access to the DNS table of a server and replace a valid Internet address with a false one.