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securenets(4)							 securenets(4)

NAME    [Toc]    [Back]

     securenets	- NIS map security file

SYNOPSIS    [Toc]    [Back]


DESCRIPTION    [Toc]    [Back]

     The /etc/securenets file lists networks and hosts that may	participate in
     the NIS protocol with this	host.  This file is used by both the NIS
     server library nisserv(7p).

     This file contains	any number of netmask/address pairs, one per line
     separated by white	space.	The netmask controls which bits	in an address
     are contained in the match.  It should contain all	ones followed by all
     zeros in binary.  A netmask of (all ones in binary) would
     require an	exact match of the address.  An	example	file would be:

     When the NIS libraries are	initially loaded into nsd this file is parsed
     into an internal binary format.  When a request from a host is received
     its source	address	is logically ANDed with	the netmask and	compared to
     the address.  If they are identical then the request is allowed, else a
     message is	logged and the request is ignored.

     When this file is changed a HUP signal must be sent to the	nsd daemon for
     the file to be reparsed.  This can	be done	with the command killall -HUP

FILES    [Toc]    [Back]


SEE ALSO    [Toc]    [Back]

     nsd(1M), nisserv(7P)
     IRIX Admin: Networking and	Mail
     IRIX Admin: NFS and NIS

									PPPPaaaaggggeeee 1111
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