|
Hopefully, this page is exactly what you are looking for, but if not, you can always find further assistance on Unix/Linux Forum!
File Formats resolv.conf(4)
NAME
resolv.conf - resolver configuration file
SYNOPSIS
/etc/resolv.conf
DESCRIPTION
The resolver is a set of routines that provide access to the
Internet Domain Name System. See resolver(3RESOLV).
resolv.conf is a configuration file that contains the infor-
mation that is read by the resolver routines the first time
they are invoked by a process. The file is designed to be
human readable and contains a list of keywords with values
that provide various types of resolver information.
The resolv.conf file contains the following configuration
directives:
nameserver Specifies the IPv4 or IPv6 Internet
address of a name server that the
resolver is to query. Up to MAXNS
name servers may be listed, one per
keyword. See <resolv.h>. If there
are multiple servers, the resolver
library queries them in the order
listed. If no name server entries
are present, the resolver library
queries the name server on the local
machine. The resolver library fol-
lows the algorithm to try a name
server until the query times out. It
then tries the name servers that
follow, until each query times out.
It repeats all the name servers
until a maximum number of retries
are made.
domain Specifies the local domain name.
Most queries for names within this
domain can use short names relative
to the local domain. If no domain
entry is present, the domain is
determined from sysinfo(2) or from
gethostname(3C). (Everything after
the first `.' is presumed to be the
domain name.) If the host name does
not contain a domain part, the root
domain is assumed. You can use the
LOCALDOMAIN environment variable to
override the domain name.
SunOS 5.10 Last change: 15 Dec 2004 1
File Formats resolv.conf(4)
search The search list for host name
lookup. The search list is normally
determined from the local domain
name. By default, it contains only
the local domain name. You can
change the default behavior by list-
ing the desired domain search path
following the search keyword, with
spaces or tabs separating the names.
Most resolver queries will be
attempted using each component of
the search path in turn until a
match is found. This process may be
slow and will generate a lot of net-
work traffic if the servers for the
listed domains are not local.
Queries will time out if no server
is available for one of the domains.
The search list is currently limited
to six domains and a total of 256
characters.
sortlistaddresslist Allows addresses returned by the
libresolv-internal gethostbyname()
to be sorted. A sortlist is speci-
fied by IP address netmask pairs.
The netmask is optional and defaults
to the natural netmask of the net.
The IP address and optional network
pairs are separated by slashes. Up
to 10 pairs may be specified. For
example:
sortlist 130.155.160.0/255.255.240.0 130.155.0.0
options Allows certain internal resolver
variables to be modified. The syntax
is
options option ...
where option is one of the follow-
ing:
SunOS 5.10 Last change: 15 Dec 2004 2
File Formats resolv.conf(4)
debug
Sets RES_DEBUG in the
_res.options field.
ndots:n
Sets a threshold floor for the
number of dots which must appear
in a name given to res_query()
before an initial absolute (as-
is) query is performed. See
resolver(3RESOLV). The default
value for n is 1, which means
that if there are any dots in a
name, the name is tried first as
an absolute name before any
search list elements are
appended to it.
timeout:n
retrans:n
Sets the amount of time the
resolver will wait for a
response from a remote name
server before retrying the query
by means of a different name
server. Measured in seconds, the
default is RES_TIMEOUT. See
<resolv.h>. The timeout and
retrans values are the starting
point for an exponential back
off procedure where the timeout
is doubled for every retransmit
attempt.
attempts:n
retry:n
Sets the number of times the
resolver will send a query to
its name servers before giving
up and returning an error to the
SunOS 5.10 Last change: 15 Dec 2004 3
File Formats resolv.conf(4)
calling application.
The default is RES_DFLRETRY.
See <resolv.h>.
rotate
Sets RES_ROTATE in _res.options.
The name servers are queried
round-robin from among those
listed. The query load is spread
among all listed servers, rather
than having all clients try the
first listed server first every
time.
no-check-names
Sets RES_NOCHECKNAME in
_res.options. This disables the
modern BIND checking of incoming
host names and mail names for
invalid characters such as
underscore (_), non-ASCII, or
control characters.
inet6
Sets RES_USE_INET6 in
_res.options. In the Solaris
BIND port, this has no effect on
gethostbyname(3NSL). To retrieve
IPv6 addresses or IPv4
addresses, use
getaddrinfo(3SOCKET) instead of
setting inet6.
The domain and search keywords are mutually exclusive. If
more than one instance of these keywords is present, the
last instance takes precedence.
You can override the search keyword of the system
resolv.conf file on a per-process basis by setting the
environment variable LOCALDOMAIN to a space-separated list
SunOS 5.10 Last change: 15 Dec 2004 4
File Formats resolv.conf(4)
of search domains.
You can amend the options keyword of the system resolv.conf
file on a per-process basis by setting the environment vari-
able RES_OPTIONS to a space-separated list of resolver
options.
The keyword and value must appear on a single line. Start
the line with the keyword, for example, nameserver, followed
by the value, separated by white space.
FILES
/etc/resolv.conf
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Standard BIND 8.3.3 |
|_____________________________|_____________________________|
SEE ALSO
domainname(1M), sysinfo(2), gethostbyname(3NSL),
getnameinfo(3SOCKET), getipnodebyname(3SOCKET),
gethostname(3C), resolver(3RESOLV), attributes(5)
Vixie, Paul, Dunlap, Keven J., Karels, Michael J. Name
Server Operations Guide for BIND. Internet Software Consor-
tium, 1996.
SunOS 5.10 Last change: 15 Dec 2004 5
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Wed Sep 12 21:37:31 GMT 2007
|
Your favourite pages:
No pages logged yet.
Trying to save cookie... Top 10 most popular pages:
sqlite3 man page (5334 hits)
(openSUSE 10.2)
svn man page (5208 hits)
(FreeBSD 6.2)
adv_cap_autoneg man page (4870 hits)
(Solaris 10 11_06)
CPAN man page (4607 hits)
(Suse Linux 10.1)
ssh man page (4342 hits)
(Suse Linux 10.1)
ssh-socks5-proxy-connect man page (2876 hits)
(Solaris 10 11_06)
netcat man page (2717 hits)
(Suse Linux 10.1)
pprosetup man page (2487 hits)
(Solaris 10 11_06)
startproc man page (2471 hits)
(Suse Linux 10.1)
signal man page (2407 hits)
(Suse Linux 10.1)
|
Man Pages 
