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.
Gold price in Mexico in Mexican Peso (MXN) Gold price in Mexico in Mexican Peso (MXN) is a free service provided by Gold Price Network website, where you can find daily reports about gold price in Mexico in Mexican Peso per ounce, gram, and kilo gram in different carats 24k, 21k, 18k, 14k, and 10k.