[squid-users] Squid transparent not caching apt requests from deb.debian.org

Alex Rousskov rousskov at measurement-factory.com
Fri Apr 3 20:34:01 UTC 2020

On 4/3/20 4:26 PM, zrm wrote:
> In the first case we get TCP_MISS every time because it isn't caching
> the data, in the second case it's only the first time and after that we
> get TCP_REFRESH_UNMODIFIED. But how and why is this happening?

Those questions can often be answered by looking at HTTP headers
received and sent by Squid when talking to clients and origin servers.
You can see those headers in basic packet captures or if you set
debug_options to ALL,2.


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