protocols(5)
NAME
protocols − protocol name data base
DESCRIPTION
The /etc/protocols file contains information regarding the known protocols used in the DARPA Internet. For each protocol a single line should be present with the following information:
•Official protocol name
•Protocol number
•Aliases
Items are separated by any number of blanks and/or tab characters. A “#” indicates the beginning of a comment. Characters up to the end of the line are not interpreted by routines which search the file.
Protocol names may contain any printable character other than a field delimiter, newline, or comment character.
FILES
/etc/protocols