When I am using squid proxy in the server, I get an error message, "The request or reply is too large" from any node in the LAN.
How can I solve this?
This error message appears when you try downloading large file using GET or uploading it using POST/PUT. There are several parameters to look for:
request_body_max_size
reply_body_max_size
These two are set to 0 by default, which means no limits at all. They should not be limited unless you really know how that affects your squid behavior. Or at all in standard proxy.
request_header_max_size
reply_header_max_size
These two default to 64kB starting from Squid-3.1. Earlier versions of Squid had defaults as low as 2 kB. In some rather rare circumstances even 64kB is too low, so you can increase this value.
from wiki sqid faq