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ethers(5)

ethers(5)                        File Formats                        ethers(5)



NAME
       ethers - Ethernet address to hostname database

DESCRIPTION
       The  ethers  file  is  a local source of information about the (48-bit)
       Ethernet addresses of hosts on the network. The ethers file can be used
       in  conjunction  with or instead of other ethers sources, including the
       NIS maps ethers.byname and  ethers.byaddr,  or  Ethernet  address  data
       stored  on  an  LDAP  server.  Programs  use the ethers(3C) routines to
       access this information.


       The ethers file has one line for each host on an Ethernet. The line has
       the following format:


       Ethernet-address  official-host-name


       Items are separated by any number of SPACE and/or TAB characters. A '#'
       indicates the beginning of a comment extending to the end of line.


       The standard form for Ethernet addresses is "x:x:x:x:x:x" where x is  a
       hexadecimal number between 0 and ff, representing one byte. The address
       bytes are always in network order. Host names may contain any printable
       character other than SPACE, TAB, NEWLINE, or comment character.

USAGE
       Few  systems  other than boot servers have an ethers file. Most systems
       instead rely on arp(4P)  to  map  between  Ethernet  addresses  and  IP
       addresses on their local network.

FILES
       /etc/ethers    file listing Ethernet hosts


SEE ALSO
       ethers(3C), arp(4P), hosts(5), nsswitch.conf(5)



Oracle Solaris 11.4               2 Feb 2021                         ethers(5)
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