Feature Requests item #3151789, was opened at 2011-01-05 13:09
Message generated for change (Settings changed) made by bagder
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>Category: None
>Group: None
>Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: Johan van Selst (koresh)
Assigned to: Daniel Stenberg (bagder)
Summary: [patch] Ignore certain IPs in connections

Initial Comment:
The attached patch adds an option to blacklist certain IP addresses for a specific connection. I use this in an environment with many DNS load-balanced webservers. Sometimes one of these servers consistently throws errors (e.g. HTTP 500 Internal error), while others work fine. Curl already does automatic fail-over to another address if a connection is refused, but there is no way to connect to (or ignore) a specific server in a DNS load-balanced setup when it is reachable.
With this patch I can retry a request that failed to provide a usable result, while 'blacklisting' the specific address that produced this result. This way I can still quickly get a sensible result from another server, unless all of them fail.
The patch introduces the --ignoreip command-line option (may be repeated with multiple addresses) and the CURLOPT_IGNORE_IPS library flag (takes a string list). Suggestions for better names are welcome.

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>Comment By: Daniel Stenberg (bagder)
Date: 2011-01-11 00:23

Message:
We're discussing this on the mailing list. Closing this entry.

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Comment By: Daniel Stenberg (bagder)
Date: 2011-01-05 13:46

Message:
As this is not a bug, but a new feature and a patch, the correct procedure
would be to resend the patch and the above explanation to the curl-library
mailing list for discussion and review. Thanks for your contribution!

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Received on 2011-01-11