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    SQUID 0.4.29_1 +LDAP. authentication problem

    Cache/Proxy
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    • H
      hery524
      last edited by

      Im using the latest pfsense version 2.3.2-RELEASE-p1 (amd64)  with the latest squid+squidguard release 0.4.29_1

      i have configured with previous squid release+ LDAP authentication. and it work like charm before.decided to update to latest release and its running ok for several minutes. the AD authenticate the user and squidguard also working blacklisting the url. after several minutes,  the authentication start to make a problem whereby it keep asking for the authentication and from the log the error 407 is prompted. which i believe it indicate the authentication problem. i didn't  know whether some script/rules has been changed in the background that make the authentication is not working or there is a bug in the latest release for ldap authentication.. can some one guide me to cater these error.. i have tested with squidguard-=OFF. still the same, the browser keep asking the authentication

      MY squid.conf
      –--------------------------------------------------------------------------------------------------------------

      This file is automatically generated by pfSense

      Do not edit manually !

      http_port 192.168.0.130:3128
      icp_port 0
      dns_v4_first on
      pid_filename /var/run/squid/squid.pid
      cache_effective_user squid
      cache_effective_group proxy
      error_default_language en
      icon_directory /usr/local/etc/squid/icons
      visible_hostname localhost
      cache_mgr admin@local
      access_log /var/squid/logs/access.log
      cache_log /var/squid/logs/cache.log
      cache_store_log none
      netdb_filename /var/squid/logs/netdb.state
      pinger_enable on
      pinger_program /usr/local/libexec/squid/pinger

      logfile_rotate 30
      debug_options rotate=30
      shutdown_lifetime 3 seconds
      forwarded_for on
      httpd_suppress_version_string on
      uri_whitespace strip

      acl dynamic urlpath_regex cgi-bin ?
      cache deny dynamic

      cache_mem 64 MB
      maximum_object_size_in_memory 256 KB
      memory_replacement_policy heap GDSF
      cache_replacement_policy heap LFUDA
      minimum_object_size 0 KB
      maximum_object_size 4 MB
      cache_dir ufs /var/squid/cache 1000 16 256
      offline_mode off
      cache_swap_low 90
      cache_swap_high 95
      cache allow all

      Add any of your own refresh_pattern entries above these.

      refresh_pattern ^ftp:    1440  20%  10080
      refresh_pattern ^gopher:  1440  0%  1440
      refresh_pattern -i (/cgi-bin/|?) 0  0%  0
      refresh_pattern .    0  20%  4320

      #Remote proxies

      Setup some default acls

      From 3.2 further configuration cleanups have been done to make things easier and safer. The manager, localhost, and to_localhost ACL definitions are now built-in.

      acl localhost src 127.0.0.1/32

      acl allsrc src all
      acl safeports port 21 70 80 210 280 443 488 563 591 631 777 901  3128 3129 1025-65535 80 53 443 389 21
      acl sslports port 443 563  443

      From 3.2 further configuration cleanups have been done to make things easier and safer. The manager, localhost, and to_localhost ACL definitions are now built-in.

      #acl manager proto cache_object

      acl purge method PURGE
      acl connect method CONNECT

      Define protocols used for redirects

      acl HTTP proto HTTP
      acl HTTPS proto HTTPS
      acl allowed_subnets src 192.168.0.0/22
      http_access allow manager localhost

      http_access deny manager
      http_access allow purge localhost
      http_access deny purge
      http_access deny !safeports
      http_access deny CONNECT !sslports

      Always allow localhost connections

      From 3.2 further configuration cleanups have been done to make things easier and safer.

      The manager, localhost, and to_localhost ACL definitions are now built-in.

      http_access allow localhost

      request_body_max_size 0 KB
      delay_pools 1
      delay_class 1 2
      delay_parameters 1 -1/-1 -1/-1
      delay_initial_bucket_level 100
      delay_access 1 allow allsrc

      Reverse Proxy settings

      Custom options before auth

      auth_param basic program /usr/local/libexec/squid/basic_ldap_auth -v 3 -b DC=mydomain,DC=int -D CN=pfsense,OU=ITADMIN,DC=mydomain,DC=int -w MYpassword11 -f '(&(memberOf=CN=proxyusers,OU=ITADMIN,DC=mydomain,DC=int)(sAMAccountName=%s))' -u sAMAccountName -P 192.168.0.133:389
      auth_param basic children 5
      auth_param basic realm Please enter your Radius credentials to access the proxy
      auth_param basic credentialsttl 5 minutes
      acl password proxy_auth REQUIRED

      Custom options after auth

      http_access allow password allowed_subnets

      Default block all to be sure

      http_access deny allsrc

      log from squid

      1483690613.492      0 192.168.1.198 TCP_DENIED/407 4053 CONNECT www.google.com:443 - HIER_NONE/- text/html
      1483690619.387    13 192.168.1.198 TCP_DENIED/407 4163 CONNECT www.google.com:443 h.khairi HIER_NONE/- text/html
      1483690694.408      0 192.168.1.198 TCP_DENIED/407 4053 CONNECT www.google.com:443 - HIER_NONE/- text/html
      1483690699.760      5 192.168.1.198 TCP_DENIED/407 4155 CONNECT www.google.com:443 aduser HIER_NONE/- text/html
      1483690898.047    12 192.168.1.198 TCP_DENIED/407 4163 CONNECT www.google.com:443 h.khairi HIER_NONE/- text/html
      1483690904.673      5 192.168.1.198 TCP_DENIED/407 4155 CONNECT www.google.com:443 aduser HIER_NONE/- text/html
      1483691091.631    19 192.168.1.198 TCP_DENIED/407 4155 CONNECT www.google.com:443 aduser HIER_NONE/- text/html
      1483692872.978    72 192.168.1.198 TCP_DENIED/407 4155 CONNECT www.google.com:443 aduser HIER_NONE/- text/html
      1483692928.361    27 192.168.1.198 TCP_DENIED/407 4163 CONNECT www.google.com:443 h.khairi HIER_NONE/- text/html
      1483693827.151      0 192.168.1.198 TCP_DENIED/407 4053 CONNECT www.google.com:443 - HIER_NONE/- text/html

      1 Reply Last reply Reply Quote 0
      • D
        doktornotor Banned
        last edited by

        No, there was nothing changed in the pfSense package regarding LDAP.

        1 Reply Last reply Reply Quote 0
        • H
          hery524
          last edited by

          Ty for the confirmation.. Can you sir help me to identify what is the problem with my configuration.. I dont know what could be wrong or where to look to cater this problem

          1 Reply Last reply Reply Quote 0
          • D
            doktornotor Banned
            last edited by

            No idea. The authentication either works or does not. Perhaps try bumping the number of authentication processes

            1 Reply Last reply Reply Quote 0
            • H
              hery524
              last edited by

              (SOLVED)

              Just find a remedy to my problem. Somehow the port 389 is not working with AD (mine is Windows Server 2012 - AD). so change it to 3286 and voila!! the mystery solved.  ;D ;D

              but still using the previous squid version the 389 is working, i still dont get why it is not working in the latest version. :-\ :-\ :-\

              Anyway credit to the solver.. ;) ;) ;)

              https://www.experts-exchange.com/questions/21449783/Problem-using-squid-ldap-auth-against-AD-domain.html

              TESTING!!!!

              389 is not working

              –---------------------------------------------------------------
              [2.3.2-RELEASE][root@proxyent.mydomain.int]/root: /usr/local/libexec/squid/basic_ldap_auth -v 3 -b DC=mydomain,DC=int -D CN=pfsense,OU=ITADMIN,DC=mydomain,DC=int -w MYpassword11 -f "(&(memberof=CN=proxyusers,OU=ITADMIN,DC=mydomain,DC=int)(sAMAccountName=%s))" -u sAMAccountName -P 192.168.0.133:389
              aduser password
              basic_ldap_auth: WARNING, LDAP search error 'Operations error'
              ERR Operations error
              pfsense MYpassword11
              basic_ldap_auth: WARNING, LDAP search error 'Operations error'
              ERR Operations error
              ^C
              –------------------------------------------------------------------

              change to 3286

              [2.3.2-RELEASE][root@proxyent.mydomain.int]/root: /usr/local/libexec/squid/basic_ldap_auth -v 3 -b DC=mydomain,DC=int -D CN=pfsense,OU=ITADMIN,DC=mydomain,DC=int -w MYpassword11 -f "(&(memberof=CN=proxyusers,OU=ITADMIN,DC=mydomain,DC=int)(sAMAccountName=%s))" -u sAMAccountName -P 192.168.0.133:3268
              aduser password
              OK
              pfsense MYpassword11
              ERR Success
              –-------------------------------------------------------------------

              1 Reply Last reply Reply Quote 1
              • D
                doktornotor Banned
                last edited by

                As noted above, noone touched LDAP for ages in the pfSense package. If someone screwed things upstream, it needs to be fixed upstream.

                http://bugs.squid-cache.org/index.cgi

                Also, there shouldn't be any need to use a GC unless you cannot specify the search domain/OU.

                1 Reply Last reply Reply Quote 0
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