Running Squid with its basic setup. When IE's proxy connection setting is configured to use squid, the download speed decreases by about 10KB/s. Unchecking the 'use proxy' setting will resolve the slower download speed issue.

1) Is there any setting in IE or Squid that I can use to fine tune the download speed of clients?

2) What do I look out for when checking access.log to see if cached pages are been successfully served? (Squid automatically cache pages right?)

3) I have 2 PCs, A and B. A downloads a file. After A's download is completed, B download the same file. Will this same file downloaded by B be retrieved from Squid (intranet speed) or from the internet?

Thanks !