Editing File Service Protocol (section)

== History ==
FSP never reached the popularity of FTP for legitimate use (although [[WU-FTPD|wuarchive]] and [[id Software]] provided FSP service in addition to FTP for some time), but became very popular in the early-to-mid-1990s for [[Darknet|underground]] sites containing [[pornography]] and/or [[warez]].{{Citation needed|date=September 2008}} Because an FSP server only requires one process (as opposed to one process per client for most FTP servers), it is much harder for a [[system administrator]] to notice it in a process list; also, since it uses UDP, it is less likely to be noticed by a [[network administrator]].

Eventually, however, an increased use of [[Firewall (networking)|firewall]]s, a decreasing usage of the [[shell account]]s required to run a server or most of the clients, and a lack of FSP support in [[web browser]]s caused its use to taper off, and the [[warez scene]] moved to [[HTTP]] and [[File eXchange Protocol|FXP]] while pornography moved to publicly advertised [[web server]]s.{{Citation needed|date=September 2008}}