ethers(4)                                               ethers(4)



     NAME
          ethers - Ethernet address to hostname database or YP domain

     DESCRIPTION
          The /etc/ethers  file  contains  information  regarding  the
          known  (48 bit) Ethernet addresses of hosts on the Internet.
          For each host on  an  Ethernet,  a  single  line  should  be
          present with the following items of information:

               ethernet-address  hostname

          Items are separated by any number  of  blanks  and/or  tabs.
          Use # to introduce a single line or midline comment.

          The  standard  form  for  ethernet-address  is  x:x:x:x:x:x:
          where   x  is  a  hexadecimal  number  between  0  and  255,
          representing one byte.  The address bytes are always in net-
          work  order.   hostname  may contain any printable character
          other than a space, tab, newline, or comment character.  The
          hostnames  in the ethers file should correspond to the host-
          names in the /etc/hosts file (see hosts(4)).

          The ether_line() routine from the Ethernet address manipula-
          tion  library,  ethers(3N)  may be used to scan lines of the
          ethers file.

     FILES
          /etc/ethers

     SEE ALSO
          ethers(3N), hosts(4).
























     April, 1990                                                     1