There are over 2500 RFC's. Each RFC is known by a number. For instance, RFC 1180 presents a tutorial on TCP/IP, RFC 1920 lists the current standards RFC's and explains the RFC standards process, and RFC 1941 is a FAQ list on the topic of Internet deployment in educational establishments.
MX record. A mail exchanger record (MX record) is a type of resource record in the Domain Name System that specifies a mail server responsible for accepting email messages on behalf of a recipient's domain, and a preference value used to prioritize mail delivery if multiple mail servers are available.
If the enthusiasm generated by foreign networks like Facebook, Twitter, or LinkedIn is very powerful, it does not stifle African efforts in the field. The following networks are in Africa and in some countries they cartonnent as well as the classics. 1. MXIT: SOCIAL NETWORK # 1 Mxit is an application for communicating. Because of its shape, halfway between Facebook and Whatsapp, Mxit easily pass for a social network. The progress has been impressive since Mxit statistics gathered in 2013 show 50 million users of which 10 million are active members.