45 lines
1.1 KiB
Groff
45 lines
1.1 KiB
Groff
'\"macro stdmacro
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.if n .pH man4.ethers @(#)ethers 30.3 of 2/1/86
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.TH ETHERS 4
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.SH NAME
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ethers \- ethernet address to hostname database
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.SH DESCRIPTION
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The
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.I ethers
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file contains information regarding the
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known (48 bit) ethernet addresses of hosts on the internet.
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For each host on an ethernet,
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a single line should be present with the following information:
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.LP
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ethernet address
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.br
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official host name
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.LP
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Items are separated by any number of blanks and/or tabs.
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A `#' indicates the beginning of a comment
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extending to the end of line.
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.LP
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The standard form for ethernet addresses is ``x:x:x:x:x:x'' where
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.I x
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is a hexadecimal number between 0 and ff, representing one byte.
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The address bytes are always in network order.
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Host names may contain any printable character other than
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a space, tab, newline, or comment character.
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It is intended that host names in the
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.I ethers
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file correspond to the host names in the
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.IR hosts (4)
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file.
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.LP
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The
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.IR ether_line ()
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routine from the ethernet address manipulation library,
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.IR ethers (3Y)
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may be used to scan lines of the
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.I ethers
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file.
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.SH FILES
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/etc/ethers
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.SH "SEE ALSO"
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rarpd(1M), ethers(3Y), hosts(4)
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