https://curl.se/mail/lib-2003-12/0264.html
Curl: Re: CURLOPT_IPRESOLVE problem
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https://curl.se/mail/lib-2003-12/0247.html
Curl: Re: CURLOPT_IPRESOLVE problem
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https://curl.se/mail/lib-2004-04/0185.html
Curl: Re: CURLOPT_IPRESOLVE
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