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curl/docs/cmdline-opts/resolve.d

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cmdline-opts: more command line options documented Moved over to the new format
2016-11-27 18:50:25 -05:00
Long: resolve
dns: extend CURLOPT_RESOLVE syntax for adding non-permanent entries Extend the syntax of CURLOPT_RESOLVE strings: allow using a '+' prefix (similar to the existing '-' prefix for removing entries) to add DNS cache entries that will time out just like entries that are added by libcurl itself. Append " (non-permanent)" to info log message in case a non-permanent entry is added. Adjust relevant comments to reflect the new behavior. Adjust documentation. Extend unit1607 to test the new functionality. Closes #6294
2020-12-10 11:38:14 -05:00
Arg: <[+]host:port:addr[,addr]...>
cmdline-opts: more command line options documented Moved over to the new format
2016-11-27 18:50:25 -05:00
Help: Resolve the host+port to this address
Added: 7.21.3
docs: add categories to all cmdline opts Adapted gen.pl with 'listcats' This commit is a part of "--help me if you can" Closes #5680
2020-07-13 08:15:04 -04:00
Category: connection
cmdline-opts: more command line options documented Moved over to the new format
2016-11-27 18:50:25 -05:00
---
Provide a custom address for a specific host and port pair. Using this, you
can make the curl requests(s) use a specified address and prevent the
otherwise normally resolved address to be used. Consider it a sort of
/etc/hosts alternative provided on the command line. The port number should be
the number used for the specific protocol the host will be used for. It means
you need several entries if you want to provide address for the same host but
different ports.
hostip: support wildcard hosts This adds support for wildcard hosts in CURLOPT_RESOLVE. These are try-last so any non-wildcard entry is resolved first. If specified, any host not matched by another CURLOPT_RESOLVE config will use this as fallback. Example send a.com to 10.0.0.1 and everything else to 10.0.0.2: curl --resolve *:443:10.0.0.2 --resolve a.com:443:10.0.0.1 \ https://a.com https://b.com This is probably quite similar to using: --connect-to a.com:443:10.0.0.1:443 --connect-to :443:10.0.0.2:443 Closes #3406 Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2018-12-27 08:23:13 -05:00
By specifying '*' as host you can tell curl to resolve any host and specific
port pair to the specified address. Wildcard is resolved last so any --resolve
with a specific host and port will be used first.
cmdline-opts: more command line options documented Moved over to the new format
2016-11-27 18:50:25 -05:00
The provided address set by this option will be used even if --ipv4 or --ipv6
is set to make curl use another IP version.
dns: extend CURLOPT_RESOLVE syntax for adding non-permanent entries Extend the syntax of CURLOPT_RESOLVE strings: allow using a '+' prefix (similar to the existing '-' prefix for removing entries) to add DNS cache entries that will time out just like entries that are added by libcurl itself. Append " (non-permanent)" to info log message in case a non-permanent entry is added. Adjust relevant comments to reflect the new behavior. Adjust documentation. Extend unit1607 to test the new functionality. Closes #6294
2020-12-10 11:38:14 -05:00
By prefixing the host with a '+' you can make the entry time out after curl's
default timeout (1 minute). Note that this will only make sense for long
running parallel transfers with a lot of files. In such cases, if this option
is used curl will try to resolve the host as it normally would once the
timeout has expired.
resolve: allow IP address within [] brackets ... so that IPv6 addresses can be passed like they can for connect-to and how they're used in URLs. Added test 1324 to verify Reported-by: Alex Malinovich Fixes #2087 Closes #2091
2017-11-17 05:21:12 -05:00
Support for providing the IP address within [brackets] was added in 7.57.0.
CURLOPT_RESOLVE: Add support for multiple IP addresses per entry This enables users to preresolve but still take advantage of happy eyeballs and trying multiple addresses if some are not connecting. Ref: https://github.com/curl/curl/pull/2260
2018-01-30 19:33:51 -05:00
Support for providing multiple IP addresses per entry was added in 7.59.0.
hostip: support wildcard hosts This adds support for wildcard hosts in CURLOPT_RESOLVE. These are try-last so any non-wildcard entry is resolved first. If specified, any host not matched by another CURLOPT_RESOLVE config will use this as fallback. Example send a.com to 10.0.0.1 and everything else to 10.0.0.2: curl --resolve *:443:10.0.0.2 --resolve a.com:443:10.0.0.1 \ https://a.com https://b.com This is probably quite similar to using: --connect-to a.com:443:10.0.0.1:443 --connect-to :443:10.0.0.2:443 Closes #3406 Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2018-12-27 08:23:13 -05:00
Support for resolving with wildcard was added in 7.64.0.
dns: extend CURLOPT_RESOLVE syntax for adding non-permanent entries Extend the syntax of CURLOPT_RESOLVE strings: allow using a '+' prefix (similar to the existing '-' prefix for removing entries) to add DNS cache entries that will time out just like entries that are added by libcurl itself. Append " (non-permanent)" to info log message in case a non-permanent entry is added. Adjust relevant comments to reflect the new behavior. Adjust documentation. Extend unit1607 to test the new functionality. Closes #6294
2020-12-10 11:38:14 -05:00
Support for the '+' prefix was was added in 7.75.0.
cmdline-opts: more command line options documented Moved over to the new format
2016-11-27 18:50:25 -05:00
This option can be used many times to add many host names to resolve.
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