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.
Mexico (/ËmÉksÉ¨koÊ/ ; Spanish: Mexico [mÃ©xico]. ), Ëmexiko officially The United Mexican (States: Spanish Estados Unidos, mexicanos (listenÂ·help)), info is a federal republic In North. americaÄxihco is the Nahuatl term for the heartland of the Aztec Empire, namely, the Valley of Mexico, and its people, the Mexica, and surrounding territories which became the future State of Mexico as a division of New Spain prior to independence (compare Latium).