Jon DeLee wrote:
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Hi All,
I'm using Squid 3.0. STABLE 8 as my main cache, and I have two other
2.7 caches set up, one on each WAN connection. The only reason we
have multiple proxy servers is to load balance; in reality I only need
the one 3.0 server, which has access to both WAN links.
I don't want any ACLs that force one group of users to one outgoing
IP; I just want Squid to see that it has two paths to the internet and
use them in a weighted round-robin fashion.
I have tried setting up one direct and one parent, but no weighting
occurs because Squid prefers direct routes if possible.
I have tried to force squid to use an IP address on the machine and
set up multiple weighted routes from that IP, but strange things
happen with web sites that check source IP address, so it needs to be
something that Squid can control.
Any suggestions?
For two links, I would think that an external_acl_type that makes a hash
of the domain (or perhaps just the top level domain) and returns true
for half (or whatever distribution you want) and false for the rest,
associated with tcp_outgoing_address would work.
external_acl_type domainhash %DST /my/helper/scripts/domainhash
acl domainhash external domainhash
tcp_outgoing_address 192.168.18.45 domainhash
tcp_outgoing_address 10.32.97.43 !domainhash
I can't make any promises regarding the fail-over capability of this setup.
Thanks,
Jon DeLee
Chris
