Connection problems to upstream proxies after squid package upgrade

patrick75

Dear all,

I am running a Netgate 1541, which is configured as transparent firewall and transparent firewall. I upgraded the machine recently to "22.05-RELEASE" and squid package to 0.4.45_8 with squid-5.4.1. Squidguard is not installed.

Squid is configured to use 2 upstream Squid proxies and following advanved config:

never_direct allow all 
always_direct deny all

Since the Upgrade, web access is completely unreliable, even when accessing the proxy directly via Port 3128, bypassing the transparent proxy.

Adding

debug_options 15,2

gives some errors in cache.log:

2023/02/07 16:00:01.037 kid1| TCP connection to xxx.xxx.243.53/3128 failed
    current master transaction: master6841308
2023/02/07 16:00:01.037 kid1| TCP connection to xxx.xxx.243.54/3128 failed
    current master transaction: master6841308

There is no ressource problem with States, MBUF, Files or CPU. Squid never uses Swap. I did package captures at various points, where I do not see anything wrong.

Any ideas? Is there a chance to upgrade or downgrade squid?

patrick75

Similar issues found until now:

https://www.spinics.net/lists/squid/msg94690.html

patrick75

@patrick75 said in Connection problems to upstream proxies after squid package upgrade:

I am running a Netgate 1541, which is configured as transparent firewall and transparent firewall

Should have been:
I am running a Netgate 1541, which is configured as transparent firewall and transparent proxy