Diferenças

no way to compare when less than two revisions

Aqui você vê as diferenças entre duas revisões dessa página.

@@ Linha 1: / Linha 1: @@
+<code>
+RESOLV.CONF(5)             Linux Programmer's Manual            RESOLV.CONF(5)
+NAME
+       resolv.conf - resolver configuration file
+SYNOPSIS
+       /etc/resolv.conf
+DESCRIPTION
+       The  ________ is a set of routines in the C library that provide access
+       to the Internet Domain Name System (DNS).  The  resolver  configuration
+       file  contains  information  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.
+       If this file doesn't exist the only name server to be queried  will  be
+       on  the local machine; the domain name is determined from the host name
+       and the domain search path is constructed from the domain name.
+       The different configuration options are:
+       nameserver Name server IP address
+              Internet address (in dot notation) of a  name  server  that  the
+              resolver   should   query.    Up  to  MAXNS  (currently  3,  see
+              __________) name servers may be listed,  one  per  keyword.   If
+              there are multiple servers, the resolver library queries them in
+              the order listed.  If no nameserver  entries  are  present,  the
+              default  is  to  use the name server on the local machine.  (The
+              algorithm used is to try a name server, and if the  query  times
+              out, try the next, until out of name servers, then repeat trying
+              all the name servers until  a  maximum  number  of  retries  are
+              made.)
+       domain 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 the local host name returned by
+              gethostname(3); the domain part is taken to be everything  after
+              the  first  '.'.   Finally,  if the host name does not contain a
+              domain part, the root domain is assumed.
+       search 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.  This
+              may be changed by listing the desired domain search path follow-
+              ing the ______ keyword with spaces or tabs separating the names.
+              Resolver queries having fewer than _____ dots (default is 1)  in
+              them  will  be attempted using each component of the search path
+              in turn until a match is found.  For environments with  multiple
+              subdomains  please  read  options ndots:_ below to avoid man-in-
+              the-middle attacks and unnecessary  traffic  for  the  root-dns-
+              servers.  Note that this process may be slow and will generate a
+              lot of network traffic if the servers for the listed domains are
+              not local, and that queries will time out if no server is avail-
+              able for one of the domains.
+              The search list is currently limited to six domains with a total
+              of 256 characters.
+       sortlist
+              Sortlist  allows  addresses  returned  by gethostbyname(3) to be
+              sorted.  A sortlist is specified 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  sepa-
+              rated by slashes.  Up to 10 pairs may be specified.  E.g.,
+                  sortlist 130.155.160.0/255.255.240.0 130.155.0.0
+       options
+              Options  allows  certain internal resolver variables to be modi-
+              fied.  The syntax is
+                     options ______ ___
+              where ______ is one of the following:
+              debug  sets RES_DEBUG in ____________.
+              ndots:_
+                     sets a threshold for the number of dots which must appear
+                     in  a name given to res_query(3) (see resolver(3)) before
+                     an _______ ________ _____ will be made.  The default  for
+                     _ is 1, meaning that if there are any dots in a name, the
+                     name will be tried first as an absolute name  before  any
+                     ______ ____ elements are appended to it.
+              timeout:_
+                     sets  the  amount  of  time  the resolver will wait for a
+                     response from a remote name server  before  retrying  the
+                     query  via a different name server.  Measured in seconds,
+                     the default is RES_TIMEOUT (currently 5, see __________).
+              attempts:_
+                     sets  the  number of times the resolver will send a query
+                     to its name servers before giving  up  and  returning  an
+                     error   to  the  calling  application.   The  default  is
+                     RES_DFLRETRY (currently 2, see __________).
+              rotate sets RES_ROTATE in ____________, which causes round robin
+                     selection  of  nameservers from among those listed.  This
+                     has the effect of spreading  the  query  load  among  all
+                     listed  servers,  rather  than having all clients try the
+                     first listed server first every time.
+              no-check-names
+                     sets RES_NOCHECKNAME in ____________, which 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 ____________.  This has the effect
+                     of trying a AAAA query before an A query inside the geth-
+                     ostbyname(3)  function,  and of mapping IPv4 responses in
+                     IPv6 "tunneled form" if no AAAA records are found but  an
+                     A record set exists.
+                     Some programs behave strangely when this option is turned
+                     on.
+       The ______ and ______ keywords are mutually exclusive.   If  more  than
+       one instance of these keywords is present, the last instance wins.
+       The  ______ keyword of a system's ___________ file can be overridden on
+       a per-process basis by setting the environment variable LOCALDOMAIN  to
+       a space-separated list of search domains.
+       The  _______ keyword of a system's ___________ file can be amended on a
+       per-process basis by setting the environment variable RES_OPTIONS to  a
+       space-separated  list  of  resolver  options  as  explained above under
+       options.
+       The keyword and value must appear on a single  line,  and  the  keyword
+       (e.g., nameserver) must start the line.  The value follows the keyword,
+       separated by white space.
+FILES
+       ________________, __________
+SEE ALSO
+       gethostbyname(3), resolver(3), hostname(7), named(8)
+       Name Server Operations Guide for BIND
+COLOPHON
+       This page is part of release 2.77 of the Linux  _________  project.   A
+       description  of  the project, and information about reporting bugs, can
+       be found at http://www.kernel.org/doc/man-pages/.
+th Berkeley Distribution         2004-10-31                    RESOLV.CONF(5)
+</code>