As the title implies.

The configuration is a CentOS 6.2 running Squid 2.7STABLE9 + inComum helper (http://sourceforge.net/projects/incomum/ - Youtube caching). Squid 2.7 was chosen because inComum is not supported with Squid 3.x.

Squid is using a very basic configuration (no cache hierarchy, no delay_pools, no access control, no transparent proxy) with only black/white listing. Squid is running solo (network firewall is being provided by another machine).

Internet access and content caching are working okay. The main issue is with uploading.

When I try to upload anything (file sharing, mail attachment and so on) it goes extremely slow. I´ve already pinpointed it to Squid being the source, but I can´t find out why.

Here´s what I´ve tested:

1. Removed browser proxy configuration so internet access goes directly through the firewall: Upload´s normal
2. Removed browser proxy configuration and set default gateway as the squid machine (SNAT rules adjusted to allow that); squid service is shutdown: Upload´s normal
3. Set browser proxy configuration; squid is running: Upload´s slow

Tests were made using the same file and the same website (Gmail mail attachment). I can´t seen to find the cause. I´ve found some people with the same issue but no one had any answer so far.

Any ideas?

Thank you very much.

Well, once again answering my own questions. Although I just can´t explain or understand why, the solution was to put Squid and Firewall into the same box.

r u got soltuion of this, i am also facing same issue.
We had configured Squid 3 on Ubuntu 13 server.

http://www.linuxquestions.org/questi...ow-4175494605/

Again, you need to spell out your words, and don't double post questions. You asked this in another thread, and reopened a thread that was closed for two years to do it...please read the LQ Rules. Post reported.