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Re: Dst and dstdomain ACLs

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On 21/01/2017 3:19 a.m., creditu@xxxxxx wrote:
> On Fri, Jan 20, 2017, at 01:42 AM, Amos Jeffries wrote:
>> On 20/01/2017 3:01 p.m., creditu wrote:
>>> Had a question about dst and dstdomain acls.  Given the sample below:
>>>
>>> http_port 192.168.100.1:80 accel defaultsite=www.example.com vhost
>>> acl www dstdomain www.example.com dev.example.com
>>> cache_peer 10.10.10.1 parent 80 0 no-query no-digest originserver
>>> round-robin
>>> cache_peer_access 10.10.10.1 allow www
>>> cache_peer_access 10.10.10.1 deny all
>>> .......
>>> http_access allow www
>>> http_access deny all
>>>
>>> When someone tries to access the site by specifying an IP
>>> (192.168.100.1) instead of the name the client gets a standard access
>>> denied squid page.
>>
>> What is the rDNS for 192.168.100.1 ?
> 
> Shoot and thanks.  It's a rDNS issue.  We were using vport in a previous
> config and it may have not been noticed because of that.
> 
>>
>> The dstdomain you have configured only the exact two domains listed to
>> match.
>>
>>>  It seems that a separate acl needs to be defined for
>>> when someone tries to access the site using an IP?  For instance:
>>> acl dst www_ip 192.168.100.1
>>
>> You could add the raw-IP to the www ACL:
>>  acl www dstdomain -n 192.168.100.1
>>
>>  ... but what will 10.10.10.1 do when asked for the site hosted at
>> 192.168.100.1 ?
> 
> 10.10.10.1 doesn't allow it, so might as well stop at squid. So, is the
> best way be to create an ACL and deny cache peer access then do
> something with deny info?  Something like:
> 
> acl www_ip dstdomain -n 192.168.100.1
> cache_peer_access 10.10.10.1 deny www_ip
> ....
> deny_info http://.... www_ip
> http_access deny www_ip
> 

Pretty much. But without the cache_peer_access bit. The denied request
never gets near the cache_peer.

Amos

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