| Word |
Description |
| MS SQL (Microsoft SQL Server) |
A relational database management system produced by Microsoft. Its primary query language is Transact-SQL. |
| MX Record (Mail Exchanger Record) |
Type of resource record in the DNS specifying how internet email should be routed. MX records point to the servers that should receive and email and their priority relative to each other. An MX record must contain a host name defined by an A record. CNAME aliases are not allowed. When an email is sent, the MTA makes a DNS query requesting the MX record for the recipient’s domain name. This returns a list of host names of MX servers for that domain. The sending agent then tries to establish an SMTP connection to one of the servers and then deliver the message to the first server with which a connection can be made. The MX mechanism makes it possible to run multiple mail servers for a single domain and the order in which they should be tried. The MX mechanism doesn’t grant the ability to provide mail service on alternate ports or to distribute mail delivery across a set of equal-priority mail servers by assigning a weighting value to each one. The relative priority of an MX server is determined by the preference number present in the DNS MX record. A technique of spammers is to connect to the lowest priority MXs for a domain in an attempt to avoid any anti-spam filters. |
| MySQL |
A multithreaded, multi-user SQL database management system. MySQL acts as the database component of the LAMP, MAMP, and WAMP platforms and for open-source bug tracking tools. MySQL is an essential component for running content management systems, such as WordPress or Drupal. |
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