I have a Rails server that's a bit API heavy and so I want to run a Squid caching transparent proxy, between all port 80 activity, and the real world. However I don't need incoming traffic to go through that Squid proxy. Eg
Rails -> Squid -> Internet Internet -> Rails
I can't imagine this is an unusual setup but I can't seem to find any examples of it online. Following transparent Squid tutorials has just ended in all incoming traffic hitting the Squid proxy and outgoing traffic seemingly going straight past it (though I'm not so sure about that).
ifconfig's output. I imagine it will be relevant to any answers.
eth0 Link encap:Ethernet HWaddr f2:3c:91:ae:33:6b inet addr:18.104.22.168 Bcast:22.214.171.124 Mask:255.255.255.0 inet6 addr: fe80::f03c:91ff:feae:336b/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:330029 errors:0 dropped:0 overruns:0 frame:0 TX packets:185242 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:333723993 (333.7 MB) TX bytes:34410551 (34.4 MB) Interrupt:44 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:684735 errors:0 dropped:0 overruns:0 frame:0 TX packets:684735 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:54837497 (54.8 MB) TX bytes:54837497 (54.8 MB)