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    Kerberos Squid without authentication?

    Scheduled Pinned Locked Moved Cache/Proxy
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    • M
      mcury Rebel Alliance @killmasta93
      last edited by

      auth_param negotiate program /usr/local/libexec/squid/negotiate_kerberos_auth -d -k /usr/local/etc/squid/squidkeytab.keytab
      auth_param negotiate children 1000
      auth_param negotiate keep_alive on
      acl auth proxy_auth REQUIRED
      http_access deny auth
      http_access allow auth

      name is squidkeytab.keytab and not squidproxy.keytabb ?

      dead on arrival, nowhere to be found.

      K 1 Reply Last reply Reply Quote 0
      • K
        killmasta93 @mcury
        last edited by

        @mcury
        Thanks for the reply, just realized that it was an error but after changing same issue

        c94d8927-3857-4fc6-85b0-4ef09f37aabd-image.png

        Tutorials:

        https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

        M 1 Reply Last reply Reply Quote 0
        • M
          mcury Rebel Alliance @killmasta93
          last edited by

          df438830-1f39-49e6-a13d-748436058fb2-image.png
          This is the ticket that should appear in klist..

          Everything seems to be OK with your configuration, at least between pfsense and AD.

          Show squid logs again after changing the keytab.
          Can you test with another client?

          dead on arrival, nowhere to be found.

          K 1 Reply Last reply Reply Quote 0
          • K
            killmasta93 @mcury
            last edited by

            @mcury
            Thanks again for the reply, so im trying another machine which is in the domain but same issue

            aed2b95d-d81f-417c-b591-85de356c47f9-image.png

            32bd5b2a-74ea-4215-ab8b-4c65081e31db-image.png

            Tutorials:

            https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

            M 1 Reply Last reply Reply Quote 0
            • M
              mcury Rebel Alliance @killmasta93
              last edited by

              Did you create the user and enabled it in AD ?

              8cbf2dcb-d511-4859-a23d-79155901eca4-image.png

              dead on arrival, nowhere to be found.

              K 1 Reply Last reply Reply Quote 0
              • K
                killmasta93 @mcury
                last edited by

                @mcury
                Thanks for the reply, correct already did that
                on the Service principal name

                f9688ac1-9018-4ebd-8b50-23e2c29f4c76-image.png

                Tutorials:

                https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

                M 1 Reply Last reply Reply Quote 0
                • M
                  mcury Rebel Alliance @killmasta93
                  last edited by mcury

                  Maybe you are facing the same problem as this guy was, take a look:

                  http://squid-web-proxy-cache.1019090.n4.nabble.com/squid-kerb-auth-received-type-1-NTLM-token-td2131613.html

                  Quote:
                  You should see a request from the client to Active Directory asking for a TGS for HTTP/<fqdn of proxy>. If that does not happen or get refused by AD the client will fall back to NTLM (wrapped into the Negotiate response) which is waht you see on the proxy.

                  I would set a packet capture like that guy did to check, port 88

                  dead on arrival, nowhere to be found.

                  K 1 Reply Last reply Reply Quote 0
                  • K
                    killmasta93 @mcury
                    last edited by

                    @mcury
                    Finally got it to authenticate but im still getting the popup

                    525feae3-d657-4d22-b5de-aa1e3611b3fd-image.png

                    Tutorials:

                    https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

                    M 1 Reply Last reply Reply Quote 0
                    • M
                      mcury Rebel Alliance @killmasta93
                      last edited by mcury

                      Why are you authenticating as administrador@CASA.LOCAL ?
                      The user should be appearing there and not administrator. Should be user@CASA.LOCAL

                      The user need to be member of the group used in ldapusersearch in Squidguard

                      dead on arrival, nowhere to be found.

                      K 1 Reply Last reply Reply Quote 0
                      • K
                        killmasta93 @mcury
                        last edited by killmasta93

                        @mcury
                        its because im opening the chrome inside of the windows server which im logged on as administrador

                        this is another user

                        68db97a0-6e2f-4ab8-b790-b01fded9a4c1-image.png

                        Tutorials:

                        https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

                        M 1 Reply Last reply Reply Quote 0
                        • M
                          mcury Rebel Alliance @killmasta93
                          last edited by

                          Ok, in this last screenshot, the username is Windows10?
                          Is this user a member of the group used in ldapusersearch?

                          You are almost there.. soon we will find the problem

                          dead on arrival, nowhere to be found.

                          K 1 Reply Last reply Reply Quote 0
                          • K
                            killmasta93 @mcury
                            last edited by

                            @mcury
                            thanks for the reply,
                            so on the squidguard

                            ldapusersearch ldap://apolo.casa.local:3268/dc=casa,dc=local?userPrincipalName?sub?(&(memberof=%2cCN=Users%2cDC=casa%2cDC=local)(userPrincipalName=%s))

                            and the user is located in

                            CN=windows10,CN=Users,DC=casa,DC=local

                            Tutorials:

                            https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

                            M 1 Reply Last reply Reply Quote 0
                            • M
                              mcury Rebel Alliance @killmasta93
                              last edited by mcury

                              ldapusersearch ldap://apolo.casa.local:3268/dc=casa,dc=local?userPrincipalName?sub?(&(memberof=%2cCN=Users%2cDC=casa%2cDC=local)(userPrincipalName=%s))

                              You used a %2c in the wrong place (It means a ',')

                              It should be:

                              ldapusersearch ldap://apolo.casa.local:3268/dc=casa,dc=local?userPrincipalName?sub?(&(memberof=CN=Users%2cDC=casa%2cDC=local)(userPrincipalName=%s))

                              It's important to notice that you are not filtering users by group in this case..
                              I would create a group, like internet, add the members to this group, and then filter like this:

                              ldapusersearch ldap://apolo.casa.local:3268/dc=casa,dc=local?userPrincipalName?sub?(&(memberof=CN=internet%2cCN=Users%2cDC=casa%2cDC=local)(userPrincipalName=%s))

                              dead on arrival, nowhere to be found.

                              K 1 Reply Last reply Reply Quote 0
                              • K
                                killmasta93 @mcury
                                last edited by

                                @mcury said in Kerberos Squid without authentication?:

                                ldapusersearch ldap://apolo.casa.local:3268/dc=casa,dc=local?userPrincipalName?sub?(&(memberof=CN=internet%2cCN=Users%2cDC=casa%2cDC=local)(userPrincipalName=%s))

                                Thanks again for the reply, so i changed to

                                ldapusersearch ldap://apolo.casa.local:3268/dc=casa,dc=local?userPrincipalName?sub?(&(memberof=CN=internet%2cCN=Users%2cDC=casa%2cDC=local)(userPrincipalName=%s))

                                then created group called internet added windows10 and administrador but same issue with popup

                                CN=internet,CN=Users,DC=casa,DC=local

                                Im thinking its a squid issue but dont know what else to do :(

                                Tutorials:

                                https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

                                M 1 Reply Last reply Reply Quote 0
                                • M
                                  mcury Rebel Alliance @killmasta93
                                  last edited by

                                  Try port 389 instead of 3268.. Who knows..

                                  dead on arrival, nowhere to be found.

                                  K 1 Reply Last reply Reply Quote 0
                                  • K
                                    killmasta93
                                    last edited by killmasta93

                                    @mcury

                                    Thanks for the reply,
                                    so on squid i had to remove

                                    http_access allow deny

                                    now i got to squidguard i see this log

                                    (squidGuard): ldap_search_ext_s failed: Operations error (params: dc=casa,dc=local, 2, (&(memberof=CN=internet,CN=Users,DC=casa,DC=local)(userPrincipalName=administrador)),

                                    i also had to configure on squidguard
                                    21f45554-d0d5-41a6-9fb8-52ef0216d7ff-image.png

                                    Tutorials:

                                    https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

                                    M 1 Reply Last reply Reply Quote 0
                                    • M
                                      mcury Rebel Alliance @killmasta93
                                      last edited by

                                      So, is it working now ?

                                      if not, I would focus on the ldapusersearch..

                                      dead on arrival, nowhere to be found.

                                      1 Reply Last reply Reply Quote 0
                                      • K
                                        killmasta93 @mcury
                                        last edited by

                                        thanks for the reply,
                                        so correct its navigating with the user now i need to block but i see the log on squidguard

                                        12.05.2021 19:45:34	(squidGuard): ldap_search_ext_s failed: Operations error (params: DC=casa,DC=local, 2, (&(memberof=CN=internet,CN=Users,DC=casa,DC=local)(userPrincipalName=administrador)), userPrincipalName)

                                        Tutorials:

                                        https://www.mediafire.com/folder/v329emaz1e9ih/Tutorials

                                        M 1 Reply Last reply Reply Quote 0
                                        • M
                                          mcury Rebel Alliance @killmasta93
                                          last edited by mcury

                                          Try to tick that option in squidguard: Strip NT domain name.
                                          If ticking it doesn't work, undo it..

                                          dead on arrival, nowhere to be found.

                                          M 1 Reply Last reply Reply Quote 0
                                          • M
                                            mcury Rebel Alliance @mcury
                                            last edited by

                                            Test this:

                                            1 - Disable Squidguard authentication tab
                                            2 - Enable Squid authentication tab with the following details:

                                            Squid Authentication LDAP Settings > LDAP Base Domain:
                                            DC=casa,DC=local -R

                                            (-R option will enable the recursive search in domain).

                                            Note: keep the ldapusersearch the same as before, using port 3268

                                            Then try again and post here in case it works.

                                            dead on arrival, nowhere to be found.

                                            K 1 Reply Last reply Reply Quote 0
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