Oh okay, that makes sense.

Thanks brendan

On Wed, Apr 8, 2015 at 1:20 PM, brendan kearney <bpk...@gmail.com> wrote:

> Note the lack of a user-agent string.  This is likely an app that cannot
> authenticate.
>
> My standard for Auth Bypass is source IP, user-agent string and
> destination URL.  Generally the source is preferred to be statically
> assigned otherwise you need to allow the entire dhcp pool or range.
> Because there is no user-agent you can drop the requirement or force it
> with some sort of negated logic (!any)
> On Apr 8, 2015 11:21 AM, "Samuel Anderson" <s...@idsdoc.com> wrote:
>
>> Hello all,
>>
>>
>> I'm having a problem where HTTP 1.1 connect requests do not authenticate
>> using NTLM. Browsing the internet works fine in all major browsers, I
>> mostly see this occurring in programs that are installed locally on a users
>> computer. Using wireshark I'm able to follow the TCP stream and I can see
>> that the server returns the error (407 Proxy Authentication Required). I am
>> able to work around this problem by explicitly bypassing a domain from
>> requiring authentication, however I really don't want to do that. Any ideas
>> would be appreciated very much.
>>
>> Thanks,
>>
>>
>> Below is the content summery of some of the network packets that I'm
>> working with along with my config file
>>
>> TCP Stream Content
>>
>> ####################
>> CONNECT batch.internetpostage.com:443 HTTP/1.1
>> Host: batch.internetpostage.com
>> Proxy-Connection: Keep-Alive
>>
>>
>> HTTP/1.1 407 Proxy Authentication Required
>> Server: squid/3.3.8
>> Mime-Version: 1.0
>> Date: Tue, 07 Apr 2015 21:02:24 GMT
>> Content-Type: text/html
>> Content-Length: 3208
>> X-Squid-Error: ERR_CACHE_ACCESS_DENIED 0
>> Proxy-Authenticate: Negotiate
>> Proxy-Authenticate: NTLM
>> X-Cache: MISS from squid2.****.local
>> X-Cache-Lookup: NONE from squid2.****.local:3128
>> Via: 1.1 squid2.****.local (squid/3.3.8)
>> Connection: close
>> ####################
>>
>> CONFIG File
>>
>> ####################
>>
>> #Kerberos and NTLM authentication
>>
>> auth_param negotiate program /usr/local/bin/negotiate_wrapper --ntlm
>> /usr/bin/ntlm_auth --diagnostics --helper-protocol=squid-2.5-ntlmssp
>> --domain=****.LOCAL --kerberos /usr/lib/squid3/negotiate_kerberos_auth -d
>> -s GSS_C_NO_NAME
>> auth_param negotiate children 30
>> auth_param negotiate keep_alive off
>>
>> auth_param ntlm program /usr/bin/ntlm_auth
>> --helper-protocol=squid-2.5-ntlmssp --domain=****
>> auth_param ntlm children 30
>> auth_param ntlm keep_alive off
>>
>> # AD group membership lookup
>>
>> external_acl_type ldap_group ttl=60 children-startup=10 children-max=50
>> children-idle=2 %LOGIN /usr/lib/squid3/ext_ldap_group_acl -R -K -S -b
>> "DC=****,DC=local" -D "CN=SQUID,OU=**** Service Accounts,DC=****,DC=local"
>> -w "****" -f "(&(objectclass=person)
>> (sAMAccountname=%v)(memberof=CN=%a,OU=PROXY,ou=ALL **** Groups,DC=****
>> ,DC=local))" -h dc1.****.local,dc2.****.local,dc3.****.local,dc4.****.local
>>
>> # auth required
>>
>> acl auth proxy_auth REQUIRED
>> http_access deny !auth all
>>
>> ####################
>>
>> --
>> Samuel Anderson  |  Information Technology Administrator  |
>>  International Document Services
>>
>> IDS  |  11629 South 700 East, Suite 200  |  Draper, UT 84020-4607
>>
>>
>> CONFIDENTIALITY NOTICE:
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>>
>> _______________________________________________
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>>
>>


-- 
Samuel Anderson  |  Information Technology Administrator  |  International
Document Services

IDS  |  11629 South 700 East, Suite 200  |  Draper, UT 84020-4607

-- 
CONFIDENTIALITY NOTICE:
This e-mail and any attachments are confidential. If you are not an 
intended recipient, please contact the sender to report the error and 
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