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Re: missing negotiate_kerberos_auth on my squid

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Hi Louise;
refer the comment on below questions.

 
1)       is the time in sync with the proxy and AD server?  - YES
2)       Did you set the krb5.conf  with or without the enctypes types? it is set with enctypes
3)       Which browser are you using? we tried using IE and chorme.
4)       Did you configure the browser to use the kerberos auth? YES.
5)       Did the PC join the domain, and are u using a domain user login? YES.
6)       Does kinit user@REALM work?  ( kdestroy to remove the user ticket ) YES. it shows the desire O/P
7)       Last, does the proxy server have an A and PTR record? YES.

below error got in cache.log

negotiate_kerberos_auth:ERROR: gss_accept_sec_context() failed: Unsepecified GSS failure. Minor code may provide more information.
Kid1 | ERROR: negotiate Authentication validating user. Error returned 'BH gss_accept_sec_context_() failed: Unspecified GSS failure. Minor code may provide more information.


Thanks & Regards
Nilesh Suresh Gavali






From:        L.P.H. van Belle <belle@xxxxxxxxx>
To:        Nilesh Gavali <nilesh.gavali@xxxxxxx>
Cc:        squid-users@xxxxxxxxxxxxxxx <squid-users@xxxxxxxxxxxxxxx>
Date:        01/06/2016 09:53
Subject:        RE: missing negotiate_kerberos_auth on my squid




Wel first, great, you made it to install it,
 
Yes, but your auth pop-up can be normal, but we need more info, this can be multple things.
 
So, few small questions.
 
1)       is the time in sync with the proxy and AD server?
2)       Did you set the krb5.conf  with or without the enctypes types?
3)       Which browser are you using?
4)       Did you configure the browser to use the kerberos auth?
5)       Did the PC join the domain, and are u using a domain user login?
6)       Does kinit user@REALM work?  ( kdestroy to remove the user ticket )
7)       Last, does the proxy server have an A and PTR record?
 
Also check this site, review your settings.
https://ping.force.com/Support/PingFederate/Integrations/How-to-configure-supported-browsers-for-Kerberos-NTLM
 
And last tip your auth line.
auth_param negotiate program /usr/lib/squid/negotiate_kerberos_auth -s HTTP/hostname.domain.org@xxxxxxxxxx
 
Can also be a problem so test, if the upn is setup incorrectly, then above does not work, below the should work.
auth_param negotiate program /usr/lib/squid/negotiate_kerberos_auth -s GSS_C_NO_NAME
 
add  -d to get more debug info.
 
greetz,
 
Louis
 


Van: Nilesh Gavali [mailto:nilesh.gavali@xxxxxxx]
Verzonden:
dinsdag 31 mei 2016 21:20
Aan:
squid-users@xxxxxxxxxxxxxxxxxxxxx
CC:
L.P.H. van Belle
Onderwerp:
missing negotiate_kerberos_auth on my squid

 
Hello All;

Configured the steps require for kerberos authentication as given at
http://wiki.squid-cache.org/ConfigExamples/Authenticate/Kerberos
but instead of SSO to work when we try to open url; it is prompt for username and password, when passing credential it is not authenticating.

attached is our squid config for your reference.


Kindly let us know what went wrong.


we are using windows 2012 AD.




Thanks & Regards
Nilesh Suresh Gavali





From:        
Nilesh Gavali/MUM/TCS
To:        
squid-users@xxxxxxxxxxxxxxxxxxxxx, belle@xxxxxxxxx
Date:        
27/05/2016 15:07
Subject:        
missing negotiate_kerberos_auth on my squid




Thanks louise for reply.


but


Should be include imo. -- not sure what is imo



Shoud be in any Squid-3.2 and later.



And on my debian server its locate here.

/usr/lib/squid/negotiate_kerberos_auth - check the path but it is not there on my linux box.



Did you enable : --enable-auth-negotiate=kerberos,wrapper on compile ?  ---- NO didn't gave this option while compilation



Run squid –v to check it. -- we have"--enable-auth-negotiate" only and some other configured option.


can you help me how to get hit recomipled with reuqire options.



Thanks & Regards
Nilesh Suresh Gavali


----- Forwarded by Nilesh Gavali/MUM/TCS on 27/05/2016 15:01 -----


From:        
squid-users-request@xxxxxxxxxxxxxxxxxxxxx
To:        
squid-users@xxxxxxxxxxxxxxxxxxxxx
Date:        
27/05/2016 12:42
Subject:        
squid-users Digest, Vol 21, Issue 101
Sent by:        
"squid-users" <squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx>





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Today's Topics:

 1. NULL characters (joe)
 2. Re: Looking for a way to route into cache_peer traffic
    dynamically. (Alex Rousskov)
 3. The system returned: (111) Connection refused; (deepa ganu)
 4. Re: NULL characters (Eliezer Croitoru)
 5. missing negotiate_kerberos_auth on my squid (Nilesh Gavali)
 6. Re: missing negotiate_kerberos_auth on my squid (L.P.H. van Belle)


----------------------------------------------------------------------

Message: 1
Date: Thu, 26 May 2016 07:30:16 -0700 (PDT)
From: joe <chip_pop@xxxxxxxxxxx>
To: squid-users@xxxxxxxxxxxxxxxxxxxxx
Subject: NULL characters
Message-ID: <1464273016183-4677691.post@xxxxxxxxxxxxx>
Content-Type: text/plain; charset=us-ascii

2016/05/26 06:41:28 kid1| ctx: enter level  0:
'http://js.advert.mirtesen.ru/data/js/82090.js'
2016/05/26 06:41:28 kid1| WARNING: HTTP header contains NULL characters
{Server: nginx
Date: Thu, 26 May 2016 03:46:52 GMT
Content-Type: application/_javascript_;charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding
X-MaxSize: 5
X-MaxShm: 5
X-ShmTol: 2
X-Loc: 2347
X-MID: 16
X-Node: ssel6
X-ChosenReserve: 2
X-TotalPrimary: 290
X-ExclByGeo: 266
X-TotalPrimaryPayable: 219
X-ChosenPrimary: 3
X-ExclByTime: 18
X-ShmNews: 1989237,2010118,2009700,
X-TotalPrimaryExchange: 0
X-TotalReserve: 332
X-ChosenPayable: 3
X-ShmCnt: 3
Set-Cookie: nid}
NULL
{Server: nginx
Date: Thu, 26 May 2016 03:46:52 GMT
Content-Type: application/_javascript_;charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding
X-MaxSize: 5
X-MaxShm: 5
X-ShmTol: 2
X-Loc: 2347
X-MID: 16
X-Node: ssel6
X-ChosenReserve: 2
X-TotalPrimary: 290
X-ExclByGeo: 266
X-TotalPrimaryPayable: 219
X-ChosenPrimary: 3
X-ExclByTime: 18
X-ShmNews: 1989237,2010118,2009700,
X-TotalPrimaryExchange: 0
X-TotalReserve: 332
X-ChosenPayable: 3
X-ShmCnt: 3
Set-Cookie: nid
2016/05/26 06:41:28 kid1| ctx: exit level  0

is it bad ?????



--
View this message in context:
http://squid-web-proxy-cache.1019090.n4.nabble.com/NULL-characters-tp4677691.html
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------------------------------

Message: 2
Date: Thu, 26 May 2016 09:16:52 -0600
From: Alex Rousskov <rousskov@xxxxxxxxxxxxxxxxxxxxxxx>
To: squid-users@xxxxxxxxxxxxxxxxxxxxx
Subject: Re: Looking for a way to route into cache_peer
               traffic dynamically.
Message-ID: <57471364.4030007@xxxxxxxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8

On 05/26/2016 03:52 AM, Eliezer Croitoru wrote:

> I think that the best way is to use an ICAP meta header instead of altering
> the request itself

Agreed.


> but I am not sure if it is possible

It is not possible today: Converting ICAP headers into annotations
understood by Squid ACLs is only supported for eCAP services.

IIRC, somebody posted a patch (on squid-dev) with a similar feature for
ICAP, but that implementation needed to be redone to be officially
accepted (IMO). I do not know whether the author will adjust their code
to follow my recommendations. Perhaps you can do it for them.

Alex.



------------------------------

Message: 3
Date: Fri, 27 May 2016 14:25:19 +0530
From: deepa ganu <deepaganu@xxxxxxxxx>
To: squid-users@xxxxxxxxxxxxxxxxxxxxx
Subject: The system returned: (111) Connection refused;
Message-ID:
               <CA+qV5k+cSUThvZYCS1JLcNuXsFCA8Vnk1Rmc5opK1w15W6asyg@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="utf-8"

Hi
I am using squid as a reverse.

#http_port  80 accel defaultsite=202.53.13.19
https_port 443 accel  cert=/var/www/html/webrtc/imp/teleuniv.net.crt
key=/var/www/html/webrtc/imp/teleuniv.net.key
cafile=/var/www/html/webrtc/imp/intermediate.crt defaultsite=202.53.13.19
no-vhost


#this ACL is url path specific which accepts only portal urls and deny
others.
acl portal urlpath_regex ^/portal6may
cache_peer 172.20.36.144 parent 80 0 no-query originserver name=portalserver
cache_peer_access portalserver allow portal
cache_peer_access portalserver deny all
http_access allow portal


cache_peer 172.20.36.150 parent 443 0 no-query originserver ssl
sslflags=DONT_VERIFY_PEER login=PASS connection-auth=off name=teleuniv
acl our_sites dstdomain 202.53.13.19
http_access allow our_sites
cache_peer_access teleuniv allow our_sites
cache_peer_access teleuniv deny all

SO when i try to access the url
MailScanner heeft een e-mail met mogelijk een poging tot fraude gevonden van "202.53.13.19" MailScanner warning: numerical links are often malicious: https://202.53.13.19/ I get the following
error
"The following error was encountered while trying to retrieve the URL: The
system returned: (111) Connection refused; The remote host or network may
be down. Please try the request again."

It only gives for 172.20.36.144 not for the urlpath acl. But this happens
only sometimes. When I physically go to that server (172.20.36.150) and
click on the wired connection (one of the LAN options using linux). It
works again. I am very confused

--
Regards
Deepa Ganu
R&D Head(CSE) KMIT
Ph no : 9908036660
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Message: 4
Date: Fri, 27 May 2016 14:17:17 +0300
From: "Eliezer Croitoru" <eliezer@xxxxxxxxxxxx>
To: "'joe'" <chip_pop@xxxxxxxxxxx>,
               <squid-users@xxxxxxxxxxxxxxxxxxxxx>
Subject: Re: NULL characters
Message-ID: <33b501d1b809$541a9620$fc4fc260$@ngtech.co.il>
Content-Type: text/plain;                 charset="utf-8"

If it ended with some kind of server issues else then the logs, then it would be considered not nice.

Eliezer

----
Eliezer Croitoru
Linux System Administrator
Mobile: +972-5-28704261
Email: eliezer@xxxxxxxxxxxx


-----Original Message-----
From: squid-users [
mailto:squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of joe
Sent: Thursday, May 26, 2016 5:30 PM
To: squid-users@xxxxxxxxxxxxxxxxxxxxx
Subject: NULL characters

2016/05/26 06:41:28 kid1| ctx: enter level  0:
'http://js.advert.mirtesen.ru/data/js/82090.js'
2016/05/26 06:41:28 kid1| WARNING: HTTP header contains NULL characters
{Server: nginx
Date: Thu, 26 May 2016 03:46:52 GMT
Content-Type: application/_javascript_;charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding
X-MaxSize: 5
X-MaxShm: 5
X-ShmTol: 2
X-Loc: 2347
X-MID: 16
X-Node: ssel6
X-ChosenReserve: 2
X-TotalPrimary: 290
X-ExclByGeo: 266
X-TotalPrimaryPayable: 219
X-ChosenPrimary: 3
X-ExclByTime: 18
X-ShmNews: 1989237,2010118,2009700,
X-TotalPrimaryExchange: 0
X-TotalReserve: 332
X-ChosenPayable: 3
X-ShmCnt: 3
Set-Cookie: nid}
NULL
{Server: nginx
Date: Thu, 26 May 2016 03:46:52 GMT
Content-Type: application/_javascript_;charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding
X-MaxSize: 5
X-MaxShm: 5
X-ShmTol: 2
X-Loc: 2347
X-MID: 16
X-Node: ssel6
X-ChosenReserve: 2
X-TotalPrimary: 290
X-ExclByGeo: 266
X-TotalPrimaryPayable: 219
X-ChosenPrimary: 3
X-ExclByTime: 18
X-ShmNews: 1989237,2010118,2009700,
X-TotalPrimaryExchange: 0
X-TotalReserve: 332
X-ChosenPayable: 3
X-ShmCnt: 3
Set-Cookie: nid
2016/05/26 06:41:28 kid1| ctx: exit level  0

is it bad ?????



--
View this message in context:
http://squid-web-proxy-cache.1019090.n4.nabble.com/NULL-characters-tp4677691.html
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http://lists.squid-cache.org/listinfo/squid-users



------------------------------

Message: 5
Date: Fri, 27 May 2016 12:32:15 +0100
From: Nilesh Gavali <nilesh.gavali@xxxxxxx>
To: squid-users@xxxxxxxxxxxxxxxxxxxxx
Subject: missing negotiate_kerberos_auth on my squid
Message-ID:
               <OF9C6F8F89.5CF2ECB1-ON80257FC0.003EE232-80257FC0.003F5EF7@xxxxxxx>
Content-Type: text/plain; charset="utf-8"

Hello ;
I have installed latest squid 3.5.19 on red hat Linux yesterday. That
means I am new to squid and linux.
able to start the squid and its working fine.
now we are trying to authenticate user via Kerberos with windows AD. but
facing issues.
followed the steps provided on

http://wiki.squid-cache.org/ConfigExamples/Authenticate/Kerberos
But unable to find negotiate_kerberos_auth  on my Linux box at any
location.
now I need to know where i can find/download  negotiate_kerberos_auth  and
compile it to make authentication successful.

Thanks & Regards
Nilesh Suresh Gavali
Tata Consultancy Services
3rd Floor, Tithebarn House
Tithebarn Street
Liverpool - L2 2NZ
United Kingdom
Mailto: nilesh.gavali@xxxxxxx
Website:
http://www.tcs.com
____________________________________________
Experience certainty.   IT Services
                      Business Solutions
                      Consulting
____________________________________________

Tata Consultancy Services Limited , incorporated  with limited liability
and registered with Registrar of Companies, Mumbai, India - No: 11-84781
HQ : Nirmal Building , 9th Floor, Nariman Point, Mumbai - 400 021, India -
Registered  in UK : 18 Grosvenor Place, London SW1X 7HS - BR :007627
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Message: 6
Date: Fri, 27 May 2016 13:41:34 +0200
From: L.P.H. van Belle <belle@xxxxxxxxx>
To: squid-users@xxxxxxxxxxxxxxx  <squid-users@xxxxxxxxxxxxxxx>
Subject: Re: missing negotiate_kerberos_auth on my squid
Message-ID:
               <vmime.5748326e.63bf.32264d027089be4e@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
               
Content-Type: text/plain; charset="windows-1252"

Should be include imo.



Shoud be in any Squid-3.2 and later.



And on my debian server its locate here.

/usr/lib/squid/negotiate_kerberos_auth



Did you enable : --enable-auth-negotiate=kerberos,wrapper on compile ?



Run squid –v to check it.



Greetz,



Louis






Van: squid-users [
mailto:squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx] Namens Nilesh Gavali
Verzonden: vrijdag 27 mei 2016 13:32
Aan: squid-users@xxxxxxxxxxxxxxxxxxxxx
Onderwerp: missing negotiate_kerberos_auth on my squid




Hello ;
I have installed latest squid 3.5.19 on red hat Linux yesterday. That means I am new to squid and linux.
able to start the squid and its working fine.
now we are trying to authenticate user via Kerberos with windows AD. but facing issues.
followed the steps provided on
http://wiki.squid-cache.org/ConfigExamples/Authenticate/Kerberos
But unable to find negotiate_kerberos_auth  on my Linux box at any location.
now I need to know where i can find/download  negotiate_kerberos_auth  and compile it to make authentication successful.

Thanks & Regards
Nilesh Suresh Gavali
Tata Consultancy Services
3rd Floor, Tithebarn House
Tithebarn Street
Liverpool - L2 2NZ
United Kingdom
Mailto: nilesh.gavali@xxxxxxx
Website:
http://www.tcs.com
____________________________________________
Experience certainty.        IT Services
                      Business Solutions
                      Consulting
____________________________________________

Tata Consultancy Services Limited , incorporated  with limited liability and registered with Registrar of Companies, Mumbai, India - No: 11-84781
HQ : Nirmal Building , 9th Floor, Nariman Point, Mumbai - 400 021, India -  Registered  in UK : 18 Grosvenor Place, London SW1X 7HS - BR :007627

=====-----=====-----=====
Notice: The information contained in this e-mail
message and/or attachments to it may contain
confidential or privileged information. If you are
not the intended recipient, any dissemination, use,
review, distribution, printing or copying of the
information contained in this e-mail message
and/or attachments to it are strictly prohibited. If
you have received this communication in error,
please notify us by reply e-mail or telephone and
immediately and permanently delete the message
and any attachments. Thank you


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