Thank's for you reply Amos, I have downloaded negotiate_wrapper and set my squid-config as Markus described here; http://squid-web-proxy-cache.1019090.n4.nabble.com/NTLM-Kerberos-Authentication-with-Windows-7-td3331448.html Now I can connect the web over Squid, but it seems like it still use the old NTLM system; here is the new log files; --> tail -f cache.log 2012/01/12 16:00:24| negotiate_wrapper: Got 'YR TlRMTVNTUAABAAAAl4II4gAAAAAAAAAAAAAAAAAAAAAGAbEdAAAADw==' from squid (length: 59). 2012/01/12 16:00:24| negotiate_wrapper: Decode 'TlRMTVNTUAABAAAAl4II4gAAAAAAAAAAAAAAAAAAAAAGAbEdAAAADw==' (decoded length: 40). 2012/01/12 16:00:24| negotiate_wrapper: received type 1 NTLM token [2012/01/12 16:00:24, 3] libsmb/ntlmssp.c:debug_ntlmssp_flags(62) Got NTLMSSP neg_flags=0xe2088297 2012/01/12 16:00:24| negotiate_wrapper: Return 'TT <the ticket code removed to make the mail more clean> ' 2012/01/12 16:00:24| negotiate_wrapper: Got 'KK <the ticket code removed to make the mail more clean> from squid (length: 615). 2012/01/12 16:00:24| negotiate_wrapper: Decode <the ticket code removed to make the mail more clean> (decoded length: 458). 2012/01/12 16:00:24| negotiate_wrapper: received type 3 NTLM token [2012/01/12 16:00:24, 3] libsmb/ntlmssp.c:ntlmssp_server_auth(747) Got user=[test1] domain=[LABRISTEST] workstation=[DELL1-DESTEK] len1=24 len2=276 [2012/01/12 16:00:24, 3] libsmb/ntlmssp_sign.c:ntlmssp_sign_init(337) NTLMSSP Sign/Seal - Initialising with flags: [2012/01/12 16:00:24, 3] libsmb/ntlmssp.c:debug_ntlmssp_flags(62) Got NTLMSSP neg_flags=0xe2088215 2012/01/12 16:00:24| negotiate_wrapper: Return 'AF = test1 ******************* --> tail -f access.log 192.168.0.147 - - [12/Jan/2012:16:03:06 +0200] "GET http://www.google.com.tr/ HTTP/1.1" 407 1524 TCP_DENIED:NONE 192.168.0.147 - - [12/Jan/2012:16:03:07 +0200] "GET http://www.google.com.tr/ HTTP/1.1" 407 1773 TCP_DENIED:NONE 192.168.0.147 - test1 [12/Jan/2012:16:03:07 +0200] "GET http://www.google.com.tr/ HTTP/1.1" 200 16160 TCP_MISS:DIRECT 192.168.0.147 - test1 [12/Jan/2012:16:03:07 +0200] "GET http://www.google.com.tr/csi? HTTP/1.1" 204 413 TCP_MISS:DIRECT ******************* As you can see in access.log my client computer (test1) is connected. But if you look at cache.log you will see that it still gets NTLM 1 token instead of kerberos. "2012/01/12 16:00:24| negotiate_wrapper: received type 1 NTLM token" I have also checked the credentials on client side with 'Network Identify Manager' When I try to get new credentials it gives this error; "Could not obtain Kerberos v4 credentials" But my client seems to got Kerberos v5 credentials, since after trying this, time stamp renewed to 10hours. (I'm not sure if v4 situation can break anything) So, for this point, can you give me some information about 'what breaks the kerberos and it keeps falling back to NTLM' or at least, where should I look for the debug and inspect what may effect the kerberos auth. Thanks again, and sorry for my English if it disturbs a lot. On Thu, Jan 12, 2012 at 5:57 AM, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote: > On 12/01/2012 1:18 a.m., Muhammet Can wrote: >> >> Hi all, >> >> I have been trying to get squid running with kerberos auth for a few >> days but I'm in some trouble. The problem has been asked and replied >> many times on both the squid-users list and on the web, I have read >> them all, and tried to solve the problem. But still no luck. >> >> Here is some of my log files and tests. >> (config files are prepared with using wiki; >> http://wiki.squid-cache.org/ConfigExamples/Authenticate/Kerberos) >> >> --> tail -f cache.log >> 2012/01/11 11:54:06| squid_kerb_auth: DEBUG: Got 'YR >> TlRMTVNTUAABAAAAl4II4gAAAAAAAAAAAAAAAAAAAAAGAbEdAAAADw==' from squid >> (length: 59). >> 2012/01/11 11:54:06| squid_kerb_auth: DEBUG: Decode >> 'TlRMTVNTUAABAAAAl4II4gAAAAAAAAAAAAAAAAAAAAAGAbEdAAAADw==' (decoded >> length: 40). >> 2012/01/11 11:54:06| squid_kerb_auth: WARNING: received type 1 NTLM token >> 2012/01/11 11:54:06| authenticateNegotiateHandleReply: Error >> validating user via Negotiate. Error returned 'BH received type 1 NTLM >> token' > > > As no doubt you have seen in those earlier posts type 1 is Negotiate/NTLM. > The easiest solution is to use the negotiate_wrapper Marcus developed last > year. That should get things working for the users while the details about > why NTLM is being used get more of a look at. > > > >> >> --> tail -f access.log >> 192.168.0.147 - - [11/Jan/2012:11:54:08 +0200] "GET >> http://www.google.com.tr/ HTTP/1.1" 407 1524 TCP_DENIED:NONE >> 192.168.0.147 - - [11/Jan/2012:11:54:08 +0200] "GET >> http://www.google.com.tr/ HTTP/1.1" 407 1524 TCP_DENIED:NONE >> >> I have tested kerberos on the server side with; >> >> --> klist >> Ticket cache: FILE:/tmp/krb5cc_0 >> Default principal: administrator@xxxxxxxxxxxxxx >> >> --> kinit -V -k -t /opt/labris/etc/labris-webcache/HTTP.keytab >> HTTP/test2008.labristest.com >> Authenticated to Kerberos v5 >> >> And, on the client side, I have used kerbtray, it seems client has the >> tickets. >> >> I have captured the packets with wireshark as suggested some of the >> earlier messages, it looks like client still tries to authenticate >> with NTLM while we want to use kerberos. >> >> Here is the some of the parts of wireshark log; >> (if needed, you can get the full log from here: >> http://pastebin.com/btp9PzYu ) >> >> client to server; >> Hypertext Transfer Protocol >> GET http://www.google.com.tr/ HTTP/1.1\r\n >> [Expert Info (Chat/Sequence): GET http://www.google.com.tr/ >> HTTP/1.1\r\n] >> Request Method: GET >> Request URI: http://www.google.com.tr/ >> Request Version: HTTP/1.1 >> Host: www.google.com.tr\r\n >> User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:8.0) Gecko/20100101 >> Firefox/8.0\r\n >> Accept: >> text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n >> Accept-Language: tr-tr,tr;q=0.8,en-us;q=0.5,en;q=0.3\r\n >> Accept-Encoding: gzip, deflate\r\n >> Accept-Charset: ISO-8859-9,utf-8;q=0.7,*;q=0.7\r\n >> Proxy-Connection: keep-alive\r\n >> >> >> server reply; >> Hypertext Transfer Protocol >> HTTP/1.0 407 Proxy Authentication Required\r\n >> [Expert Info (Chat/Sequence): HTTP/1.0 407 Proxy >> Authentication Required\r\n] >> Request Version: HTTP/1.0 >> Status Code: 407 >> Response Phrase: Proxy Authentication Required >> Server: squid/3.1.12\r\n >> Mime-Version: 1.0\r\n >> Date: Wed, 11 Jan 2012 11:28:01 GMT\r\n >> Content-Type: text/html\r\n >> Content-Length: 1152\r\n >> X-Squid-Error: ERR_CACHE_ACCESS_DENIED 0\r\n >> Proxy-Authenticate: Negotiate\r\n >> X-Cache: MISS from labris-1\r\n >> X-Cache-Lookup: NONE from labris-1:3128\r\n >> Via: 1.0 labris-1 (squid/3.1.12)\r\n >> Connection: keep-alive\r\n >> \r\n >> >> >> client tries authentication; >> Hypertext Transfer Protocol >> GET http://www.google.com.tr/ HTTP/1.1\r\n >> [Expert Info (Chat/Sequence): GET http://www.google.com.tr/ >> HTTP/1.1\r\n] >> Request Method: GET >> Request URI: http://www.google.com.tr/ >> Request Version: HTTP/1.1 >> Host: www.google.com.tr\r\n >> User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:8.0) Gecko/20100101 >> Firefox/8.0\r\n >> Accept: >> text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n >> Accept-Language: tr-tr,tr;q=0.8,en-us;q=0.5,en;q=0.3\r\n >> Accept-Encoding: gzip, deflate\r\n >> Accept-Charset: ISO-8859-9,utf-8;q=0.7,*;q=0.7\r\n >> Proxy-Connection: keep-alive\r\n >> Proxy-Authorization: Negotiate >> TlRMTVNTUAABAAAAl4II4gAAAAAAAAAAAAAAAAAAAAAGAbEdAAAADw==\r\n >> NTLM Secure Service Provider >> NTLMSSP identifier: NTLMSSP >> NTLM Message Type: NTLMSSP_NEGOTIATE (0x00000001) >> Flags: 0xe2088297 >> Calling workstation domain: NULL >> Calling workstation name: NULL > > > That might be important. If the browser is not aware for some reason that it > has a Windows domain. > > >> Version 6.1 (Build 7601); NTLM Current Revision 15 >> Major Version: 6 >> Minor Version: 1 >> Build Number: 7601 >> NTLM Current Revision: 15 >> >> >> Please see me as a newbie, >> I'd really appreciate a detailed solution to get squid working with >> kerberos and what may cause the problem. > > > So far as this shows Squid is working well up to the point when the client > sends it NTLM response credentials. Those are rejected due to not being > Kerberos credentials. > > Amos -- code is poetry! muhammetcan.net
