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    Kerberos Squid without authentication?

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

      Now check if your pfsense can perform these commands:
      Assuming that olympus is the hostname of the AD DNS server and the domain is casa.local

      host -t SRV _ldap._tcp.casa.local.
host -t SRV _kerberos._udp.casa.local.
host -t A olympus.casa.local.

      I would remove these lines from krb5.conf to test:
      You will need to generate a new keytab after changing these settings

      default_tgs_enctypes = aes128-cts-hmac-sha1-96
default_tkt_enctypes = aes128-cts-hmac-sha1-96
permitted_enctypes = aes128-cts-hmac-sha1-96

      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?:

        host -t A olympus.casa.local.

        Thanks for the reply, as for the AD DNS the server is called apolo which has an ip of 192.168.3.150 and olympus is the pfsense with IP 192.168.3.254

        i ran the following commands without removing the lines and seemed to worked

        [2.4.5-RELEASE][root@Olympus.casa.local]/root: host -t SRV _ldap._tcp.casa.local.
_ldap._tcp.casa.local has SRV record 0 100 389 apolo.casa.local.
[2.4.5-RELEASE][root@Olympus.casa.local]/root: host -t SRV _kerberos._udp.casa.local.
_kerberos._udp.casa.local has SRV record 100 100 88 apolo.casa.local.
_kerberos._udp.casa.local has SRV record 0 100 88 apolo.casa.local.
[2.4.5-RELEASE][root@Olympus.casa.local]/root: host -t A apolo.casa.local.
apolo.casa.local has address 192.168.3.150

        Tutorials:

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

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

          @killmasta93 said in Kerberos Squid without authentication?:

          [2.4.5-RELEASE][root@Olympus.casa.local]/root: host -t SRV _kerberos._udp.casa.local.
          _kerberos._udp.casa.local has SRV record 100 100 88 apolo.casa.local.
          _kerberos._udp.casa.local has SRV record 0 100 88 apolo.casa.local.

          I would remove the following lines from krb5.conf to test:
          You will need to generate a new keytab after that, then replace the keytab in pfsense, and logout and login again with the client to test.

          Following lines to remove will use the default enctypes.
          default_tgs_enctypes = aes128-cts-hmac-sha1-96
          default_tkt_enctypes = aes128-cts-hmac-sha1-96
          permitted_enctypes = aes128-cts-hmac-sha1-96

          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 did the following deleted the following lines and recreated the keytab but same issue

            1e13ead3-f8da-481e-bc43-4c9b1dc26d83-image.png

            993a40a7-81b3-4982-a5d0-3b8cf8bee96b-image.png

            7b88e87e-2a79-45b4-bbd4-3962f014576d-image.png

            Tutorials:

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

            M 1 Reply Last reply Reply Quote 0
            • M
              mcury @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 @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 @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 @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 @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 @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 @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 @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
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