.\" SCCSID: @(#)protocols.5	8.1	9/11/90.TH protocols 5 .SH Nameprotocols \- protocol name file.SH Description.NXR "protocols file" "format".NXR "Internet" "specifying protocols".NXR "Internet File Transfer Protocol".NXA "protocols file" "remote file".NXAM "getprotoent subroutine" "protocols file"The.PN protocolsfile is an ASCII file that contains information regarding the knownprotocols used in the DARPA Internet.  For each protocol, a single line should be presentwith the following information:.PPOfficial protocol name.brProtocol number.brAliases.PPEach .PN protocolname is separated from the next by a new line.Items are separated by any number of blanks ortab characters or both.  A number sign (#) indicates the beginning ofa comment; characters up to the end of the line arenot interpreted by routines that search the file..PPProtocol names can contain any printablecharacter other than a field delimiter, newline,or comment character..PPThe .PN protocolsdatabase may be distributed in a network by a naming service, such as Yellow Pages or BIND/Hesiod.  See the.I Guide to the Yellow Pages Servicesor the chapter on Hesiod in the.I Guide to the BIND/Hesiod Servicefor setup information..SH Files.PN /etc/protocols.SH See Alsogetprotoent(3n).br.I Guide to the BIND/Hesiod Service.br.I Guide to the Yellow Pages Service