Issue My shared hosting cannot use my squid proxies from my plesk server

[Clement]

I'm sorry if my title seems a bit confusing but it's quite hard to find a fitting title to my problem, considering I'm not still sure where the problem comes from.

I currently have 2 servers:

1. OVH Cloud server with (Debian) Plesk on it + Squid Proxy and 40 ips.
2. Shared hosting on a small Netherland provider.

My ultimate goal is to be able to curl from my shared hosting through my Squid proxies.

Squid works great and I am able to use the proxies from my computer, but when I am trying to curl from my shared hosting using the proxies, I always hit a "connection refused".

For a moment I thought my acl were wrongly configured but everything was fine there. Checking the squid access log, I realized my requests never arrived there.

Any help is greatly appreciated.

 

[MarkM]

Sounds like the host may be blocking outgoing connections higher up the food chain. From your shared host, are you able to curl anything from the outside?