52 lines
1.3 KiB
Groff
52 lines
1.3 KiB
Groff
'\"macro stdmacro
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.\" Copyright (c) 1983 Regents of the University of California.
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.\" All rights reserved. The Berkeley software License Agreement
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.\" specifies the terms and conditions for redistribution.
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.\"
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.\" @(#)protocols.5 6.2 (Berkeley) 5/6/86
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.\"
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.if n .pH man4.protocols @(#)protocols 30.3 of 2/1/86
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.TH PROTOCOLS 4
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.UC 5
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.SH NAME
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protocols \- protocol name database
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.SH DESCRIPTION
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The
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.B /etc/protocols
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file contains information regarding the known protocols used in the
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Internet. For each protocol a single line should be present
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with the following information:
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.RS 3
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.IP \(bu 2
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official protocol name
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.IP \(bu 2
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protocol number
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.IP \(bu 2
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aliases (optional)
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.RE
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.PP
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Items are separated by any number of blanks and/or
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tab characters. A ``#'' indicates the beginning of
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a comment; characters up to the end of the line are
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not interpreted by routines which search the file.
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.PP
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Protocol names may contain any printable
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character other than a field delimiter, newline,
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or comment character.
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For example,
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.Ex
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tcp 6 TCP # transmission control protocol
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.Ee
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.SH FILES
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/etc/protocols
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.PP
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If the
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.SM NFS
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option is installed and NIS is running,
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the \f2getprotoent\f1(3N) library routines do not access this file.
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.SH "SEE ALSO"
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getprotoent(3N)
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.SH BUGS
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A name server should be used instead of a static file.
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'\".so /pubs/tools/origin.bsd
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