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- rrrreeeessssoooollllvvvveeeerrrr((((4444)))) rrrreeeessssoooollllvvvveeeerrrr((((4444))))
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- NNNNAAAAMMMMEEEE
- resolver, resolv.conf - host-address resolver configuration file
- (DNS/NIS)
-
- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- /etc/resolv.conf
-
- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- This file controls the behavior of then _r_e_s_o_l_v_e_r(3N) routines in the C
- library. It is read by these 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
- keyword and value must appear on a single line, and the keyword (for
- example, nnnnaaaammmmeeeesssseeeerrrrvvvveeeerrrr) must start the line. The value follows the keyword,
- separated by white space.
-
- This file is not necessary if there is a name server running on the local
- machine and the hostname contains the domain name. It is necessary,
- however, if the system administrator wants to override the default
- ordering of the host lookup services.
-
- nnnnaaaammmmeeeesssseeeerrrrvvvveeeerrrr
- Internet address (in dot notation) of a name server that the
- resolver should query. Up to three of these lines can be
- specified; the resolver library queries them in the order
- listed. If no nnnnaaaammmmeeeesssseeeerrrrvvvveeeerrrr 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.) When
- specifying a nnnnaaaammmmeeeesssseeeerrrrvvvveeeerrrr entry for the local machine, use the
- address 0 instead of the llllooooccccaaaallllhhhhoooosssstttt address of 127.1.
-
- ddddoooommmmaaaaiiiinnnn Local domain name. Most queries for names within this domain
- can use short names relative to the local domain. If no ddddoooommmmaaaaiiiinnnn
- entry is present, the domain is determined from the local
- hostname returned by _g_e_t_h_o_s_t_n_a_m_e(2); the domain part is taken to
- be everything after the first `.'. Finally, if the hostname
- does not contain a domain part, the root domain is assumed.
-
- sssseeeeaaaarrrrcccchhhh Search list for host-name lookup. The search list is normally
- determined from the local domain name; by default, it begins
- with the local domain name, then successive parent domains that
- have at least two components in their names. This can be
- changed by listing the desired domain search path following the
- _s_e_a_r_c_h keyword with spaces or tabs separating the names. Most
- resolver queries are attempted using each component of the
- search path in turn until a match is found. This process can be
- slow and generates a lot of network traffic if the servers for
- the listed domains are not local. Queries time out if no server
-
-
-
- PPPPaaaaggggeeee 1111
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- rrrreeeessssoooollllvvvveeeerrrr((((4444)))) rrrreeeessssoooollllvvvveeeerrrr((((4444))))
-
-
-
- is available for one of the domains.
-
- The first item in the list becomes the default domain name; the
- remaining items are the other domains to search after the
- default one.
-
- The ddddoooommmmaaaaiiiinnnn and sssseeeeaaaarrrrcccchhhh keywords are mutually exclusive. If more than one
- instance of these keywords is present, only the first instance is used.
-
- ssssoooorrrrttttlllliiiisssstttt
- List of preferred networks. The sortlist keyword is followed by a
- list of network addresses. On each lookup the address list is
- sorted according to the list of addresses. If multiple addresses
- match for a single subnet they are presented in the order returned
- from the server. The format of the items of the list is a dotted
- quad with an optional slash '/' and netmask.
-
- e.g. sortlist 130.155.160.0/255.255.240.0 130.155.0.0
-
- ooooppppttttiiiioooonnnnssss
- A list of resolver options. Currently the only supported option is
- nnnnddddoooottttssss which specifies how many dots need to be in a name for the
- resolver to attempt to lookup the name as a fully qualified name if
- the name does not contain a trailing dot. It is followed by a colon
- ':' and a number. The default is nnnnddddoooottttssss::::1111.
-
- NNNNOOOOTTTTEEEE
- The hhhhoooossssttttrrrreeeessssoooorrrrddddeeeerrrr keyword is now ignored. Resolve order for gethostbyname
- and gethostbyaddr is now done in the nsswitch.conf file.
-
- In previous IRIX releases, the _r_e_s_o_l_v._c_o_n_f file was in the /_u_s_r/_e_t_c
- directory. In order for pre-IRIX5 binaries that use BIND to work
- correctly, a symbolic link from /_e_t_c/_r_e_s_o_l_v._c_o_n_f must be made to the old
- name.
-
- FFFFIIIILLLLEEEESSSS
- /etc/resolv.conf
-
- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- named(1M), gethostbyname(3N), resolver(3N), hostname(5).
- nsswitch.conf(3);
-
- _I_R_I_X _A_d_m_i_n: _N_e_t_w_o_r_k_i_n_g _a_n_d _M_a_i_l
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- PPPPaaaaggggeeee 2222
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