Mercurial > hg > nginx-site
comparison xml/en/docs/http/ngx_http_core_module.xml @ 527:58d79f8c412d
Documented 1.3.1 changes in "resolver".
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Tue, 05 Jun 2012 22:11:50 +0000 |
parents | ef11546f75ee |
children | d8c7160527ae |
comparison
equal
deleted
inserted
replaced
526:4f907cde0382 | 527:58d79f8c412d |
---|---|
1843 <context>http</context> | 1843 <context>http</context> |
1844 <context>server</context> | 1844 <context>server</context> |
1845 <context>location</context> | 1845 <context>location</context> |
1846 | 1846 |
1847 <para> | 1847 <para> |
1848 Configures name servers used to resolve names of upstream servers, | 1848 Configures name servers used to resolve names of upstream servers |
1849 for example: | 1849 into addresses, for example: |
1850 <example> | 1850 <example> |
1851 resolver 127.0.0.1 192.0.2.1; | 1851 resolver 127.0.0.1 [::1]:5353; |
1852 </example> | 1852 </example> |
1853 An <value>address</value> parameter may be specified as | 1853 An address can be specified as a domain name or IP address, |
1854 either an IPv4 address or a hostname; | 1854 and an optional port (1.3.1). |
1855 in the latter case, the first resolved IPv4 address is used. | 1855 <!-- |
1856 If address is specified using a domain name, only the first | |
1857 resolved IPv4 address is used. | |
1858 --> | |
1859 If port is not specified, the port 53 is used. | |
1856 Name servers are queried in a round-robin fashion. | 1860 Name servers are queried in a round-robin fashion. |
1857 <note> | 1861 <note> |
1858 Before version 1.1.7, only a single name server could be configured. | 1862 Before version 1.1.7, only a single name server could be configured. |
1863 Specifying name servers using IPv6 addresses is supported | |
1864 starting from version 1.3.1. | |
1859 </note> | 1865 </note> |
1860 By default, nginx caches answers using the TTL value of a response. | 1866 By default, nginx caches answers using the TTL value of a response. |
1861 An optional <literal>valid</literal> parameter allows to override it: | 1867 An optional <literal>valid</literal> parameter allows to override it: |
1862 <example> | 1868 <example> |
1863 resolver 127.0.0.1 192.0.2.1 valid=30s; | 1869 resolver 127.0.0.1 [::1]:5353 valid=30s; |
1864 </example> | 1870 </example> |
1865 <note> | 1871 <note> |
1866 Before version 1.1.9, tuning of caching time was not possible, | 1872 Before version 1.1.9, tuning of caching time was not possible, |
1867 and nginx always cached answers for the duration of 5 minutes. | 1873 and nginx always cached answers for the duration of 5 minutes. |
1868 </note> | 1874 </note> |