Re: [squid-users] Follow up question from Wiki... "how do I configure Squid not to cache a specific server?"

Hi Amos,
      Could you please explain what should by placed instead of ¨squid¨?
I ran this
        iptables -t nat -A squid -j DNAT --to-destination 10.0.0.1:81
But i get this message:
iptables: No chain/target/match by that name

Seems to me that the ¨-A squid¨ part is what is not working for me.

I have the exact same problem as the guy that opened this thread.
>If I understand you correctly you want requests sent to a particular site
>not even to enter Squid yes?

This is correct for me, i want to allow the browser to retrieve the website
without passing thru squid.

Tnx for your prompt reply.

Amos Jeffries-2 wrote:
>
>> Hi Folks,
>>
>> I need a specific site to completely bypass my squid cache due to a
>> broken
>> external webapp.
>>
>> I have read the section "how do I configure Squid not to cache a specific
>> server?" from the wiki, which I can implement with no issues, but what I
>> am not sure is what this will actually do :)
>>
>> Will this allow traffic to pass through squid without caching it, or will
>> this block the site for users?
>
> The bit that says to configure "cache deny" ?
> Simply prevents storage of the request/reply objects as they go through
> Squid.
>
> If I understand you correctly you want requests sent to a particular site
> not even to enter Squid yes? once they enter squid there is no bypassing,
> so it must be done at the firewall.
> For such sites I use a custom chain a bit like this to decide of the
> request is intercepted or not (all the lines ending in ACCEPT, are not
> intercepted):
> iptables -t nat -A squid -s 10.0.0.1 -j ACCEPT
> ...
> iptables -t nat -A squid -j DNAT --to-destination 10.0.0.1:81
>
> You want something like:
> iptables -t nat -A squid -d ip-of-website-to-permit -j ACCEPT
> in your list of bypasses.
>
> Amos
>
>
>

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