Hello, Ok as I ran a whole bunch of test and in short the following happened: CURLOPT_URL -> url on internet CURLOPT_PROXY -> proxy in local environment CURLOPT_CONNECTTIMEOUT -> 3 seconds
set a firewall to drop packages on proxy -> curl errno 28 (3 seconds) (error message Connection timed out) -- enabling proxy, but disable url on internet --- Set firewall to drop packages on internet url -> curl errno 28 (3 seconds). (error message Operation timed out) The point which like to do is that if the first proxy is down, to switch to a backup proxy. (can do with CONNECTTIMEOUT 3 seconds). But as it also applies on the remote internet url, it can give problems as it sometimes takes longer to connect to the remote internet url than 3 seconds. could be 20-25 seconds. But that is too long to check if the first proxy is down and to switch to the second proxy. We have a workaround, but wanted to verify if there was somehow a: CURLOPT_CONNECTTIMEOUT (set 20 seconds) CURLOPT_CONNECTTIMEOUT_PROXY (set 3 seconds) Or some other trick... As the "proxy" connecttimeout should be short in our scenario vs the "internet url" connecttimeout. The CURLOPT_TIMEOUT does not help here, unfortunately. (Did more tests, but trying to keep this short and not to post too much data) Thank you for your replies. V. ------- Original Message ------- On Friday, March 4th, 2022 at 10:30 PM, Ray Satiro via curl-library <curl-library@lists.haxx.se> wrote: > On 3/4/2022 10:08 AM, vin9999 via curl-library wrote: > > > Would like to ask if it is possible to set a different connecttimeout for > > the proxy connection vs the actual url connection. Would like to > > distinguish between them, in some way. > > > > Incase of PHP > > > > CURLOPT_URL > > > > CURLOPT_PROXY > > > > CURLOPT_CONNECTTIMEOUT -> they seem to share the same value. > > There is no specific proxy connect timeout. If curl is tunneling through > > the connected-to proxy [1] (CONNECTING => TUNNELING phase) then that is > > counted as part of the connect timeout. HTTPS transfer over proxy > > implies tunneling, HTTP doesn't. If you need the transfer to timeout > > review the documentation for CURLOPT_TIMEOUT [2] to see if it's right > > for you. > > [1]: https://curl.se/libcurl/c/CURLOPT_HTTPPROXYTUNNEL.html > > [2]: https://curl.se/libcurl/c/CURLOPT_TIMEOUT.html > > -- > > Unsubscribe: https://lists.haxx.se/listinfo/curl-library > > Etiquette: https://curl.haxx.se/mail/etiquette.html -- Unsubscribe: https://lists.haxx.se/listinfo/curl-library Etiquette: https://curl.haxx.se/mail/etiquette.html
