nsswitch.conf (HPUX)

vendredi 17 avril 2009
par  Jerome ROBERT
popularité : 3%


Syntax
of the nsswitch.conf File 



Each
line in the /etc/nsswitch.conf file has the following
syntax :

lookup_type name_service [status=action status=action ...] name_service ...

If you include any <I>status</I>=<I>action</I> pairs
after a name service, the square brackets are required.





lookup_type

 

The type of information to be looked up. The supported keywords
and the information types they represent are listed in Types
of Lookups Controlled by the Name Service Switch
. These
keywords are case-sensitive.

name_service

 

One of the following name services to use for the type of
information in the lookup_type field. These keywords must
be in lowercase.

files

 

Files in the /etc directory on the local host
(/etc/hosts, /etc/services, and so on).

nis

 

Network Information Service (NIS).

dns

 

Domain Name System (DNS), which is implemented by Berkeley
Internet Name Domain (BIND) on HP-UX. See the Installing
and Administering Internet Services
manual for more
information. The dns keyword may be used only on the
line beginning with hosts.

status

 

One of the following statuses returned by a name service query.
These values may be entered in uppercase or lowercase.

SUCCESS

 

The lookup was
successful, and the requested information was found.

NOTFOUND

 

The name service
returned a response, but the requested data was not in its
database.

UNAVAIL

 

The name service is not
configured.

TRYAGAIN

 

The name service was
busy and the request timed out. This value is returned only by
DNS.

action

 

The action to take based on the status of the name service
query. The following values may be entered in uppercase or
lowercase.

continue

 

Try the next name
service in the list.

return

 

End the lookup and
return control to the calling process without consulting the next
name service in the list.

If a line beginning with one of the
lookup_types does not exist in the /etc/nsswitch.conf

file, the default Name Service Switch configuration for that type of
information is used. If the /etc/nsswitch.conf file does
not exist, the default configuration is used for every type of
information. The default Name Service Switch configuration is
described in Default Configuration.


Table
 Types of Lookups Controlled by the Name
Service Switch

Keyword

Type of Information Represented by Keyword

<FONT SIZE=2><FONT FACE="helvetica">automount</FONT></FONT>

NFS automounter
maps stored in files like /etc/auto_master and
/etc/auto_home or in NIS maps like auto.master
and auto.home.

<FONT SIZE=2><FONT FACE="helvetica">hosts</FONT></FONT>

Host names and
IP addresses stored in the /etc/hosts file or the NIS
hosts.byaddr and hosts.byname maps.

<FONT SIZE=2><FONT FACE="helvetica">netgroup</FONT></FONT>

NFS netgroups stored in the /etc/netgroup

file or the NIS netgroup, netgroup.byhost
and netgroup.byuser maps.

<FONT SIZE=2><FONT FACE="helvetica">networks</FONT></FONT>

Network names and IP addresses stored in the
/etc/networks file or the NIS networks.byaddr
and networks.byname maps.

<FONT SIZE=2><FONT FACE="helvetica">protocols</FONT></FONT>

Networking protocol names and numbers stored in the
/etc/protocols file or the NIS protocols.byname

and protocols.bynumber maps.

<FONT SIZE=2><FONT FACE="helvetica">rpc</FONT></FONT>

RPC program
names and numbers stored in the /etc/rpc file or the
NIS rpc.byname and rpc.bynumber maps.

<FONT SIZE=2><FONT FACE="helvetica">services</FONT></FONT>

Mapping of networking services to port numbers and
protocols, stored in the /etc/services file or the
NIS services.byname and services.bynp

maps.



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