[squid-users] Parent proxy chaining

[Alex Rousskov]

On 11/27/18 9:33 AM, Phillip McCollum wrote:

> 2018/11/27 16:22:54 kid1| WARNING: Forwarding loop detected for:
> Via: 1.1 squid (squid/3.5.27)

> [[Transparent Proxy]]:
> visible_hostname squid

> [[Squid Parent Proxy]]:
> visible_hostname squid

> Any thoughts or suggestions are greatly appreciated.

Squid uses Via headers to detect loops. Squid sends unique_hostname in
its Via header. unique_hostname defaults to visible_hostname. On each
Squid in your hierarchy, either use unique visible_hostname values or
use unique unique_hostname values, as appropriate in your environment.

Both directives are documented. For an expanded still-being-polished but
soon-to-become-official visible_hostname documentation, see
https://github.com/squid-cache/squid/pull/302/

Alex.