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    Guide to filtering web content (http and https) with pfsense 2.3

    Scheduled Pinned Locked Moved Documentation
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    • A
      aGeekhere
      last edited by

      yeah turn off automatic detect setting so the traffic goes direct and gets intercepted by the transparent proxy.

      Never Fear, A Geek is Here!

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      • T
        techbee
        last edited by

        @aGeekHere:

        yeah turn off automatic detect setting so the traffic goes direct and gets intercepted by the transparent proxy.

        By turn off, you mean uncheck the automatic detect settings and others options as well ?

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        • A
          aGeekhere
          last edited by

          yes

          Never Fear, A Geek is Here!

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          • T
            techbee
            last edited by

            May I ask though, what is the exact version of pfsense that you are using just for comparison.  If this will not work, then I will need to reinstall my pfsense box, maybe its broken.

            I am using:

            2.3.4-RELEASE (amd64)
            built on Wed May 03 15:13:29 CDT 2017
            FreeBSD 10.3-RELEASE-p19

            On the other hand, below is the screen shot of my testing NOT USING WPAD but setup the browser proxy.

            Also, I tried direct approach that you said, and the result the same error as before.

            What exact pfsense version are you using ?

            error1.jpg_thumb
            error1.jpg

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            • A
              aGeekhere
              last edited by

              2.3.4-RELEASE (amd64)
              Something is broken.

              Never Fear, A Geek is Here!

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              • T
                techbee
                last edited by

                @aGeekHere:

                2.3.4-RELEASE (amd64)
                Something is broken.

                what is in your wpad file?

                did you install your pfsense or upgraded to 2.3.4 release?

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                • A
                  aGeekhere
                  last edited by

                  wpad is in the guide.

                  I have been upgrading since i joined.

                  Never Fear, A Geek is Here!

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                  • 4
                    4Qman
                    last edited by

                    Hi,

                    I am new to pfsense, can someone have a look at the attached image and tell me if it looks correct please.

                    ![pfsense Nat PortForward 1.png](/public/imported_attachments/1/pfsense Nat PortForward 1.png)
                    ![pfsense Nat PortForward 1.png_thumb](/public/imported_attachments/1/pfsense Nat PortForward 1.png_thumb)

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                    • 4
                      4Qman
                      last edited by

                      I have followed this guide.

                      When I run proxy test it shows that I am under proxy. Google works fine, and so do most websites. But such websites as Amazon won't load, gives error.

                      Any advice would be greatly appreciated.

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                      • A
                        aGeekhere
                        last edited by

                        Post your squid config. Are you using just WPAD or Transparent proxy with mitm (cert of all devices) or Transparent proxy mitm set to splice all?

                        The best setup i found to use is WPAD and transparent proxy with mitm splice all, set devices to auto config.

                        Never Fear, A Geek is Here!

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                        • 4
                          4Qman
                          last edited by

                          @aGeekHere:

                          Post your squid config. Are you using just WPAD or Transparent proxy with mitm (cert of all devices) or Transparent proxy mitm set to splice all?

                          The best setup i found to use is WPAD and transparent proxy with mitm splice all, set devices to auto config.

                          Hi thanks for your reply.

                          I followed the guide, page 1.  I copied and pasted logs from PackageSquidGuardLogs

                          10.07.2017 17:06:47 [squid_reconfigure] Remove old redirector options from Squid config.
                          10.07.2017 17:05:35 [squid_reconfigure] Add new redirector options to Squid config.
                          10.07.2017 17:05:35 [squid_reconfigure] Remove old redirector options from Squid config.
                          10.07.2017 17:05:35 [sg_reconfigure] Save squidGuard config to '/usr/local/etc/squidGuard/squidGuard.conf'.
                          10.07.2017 17:05:35 [sg_redirector_base_url] Select redirector base url (http://192.168.1.1:80/sgerror.php?url=403%20&a=%a&n=%n&i=%i&s=%s&t=%t&u=%u)
                          10.07.2017 17:05:35 [sg_create_config] Add Default
                          10.07.2017 17:05:35 [sg_create_config] Add rewrites: safesearch;
                          10.07.2017 17:05:35 [sg_create_config] Add destinations: whitelist; blacklist;
                          10.07.2017 17:05:35 [sg_create_config] Added: blk_BL_adv; blk_BL_aggressive; blk_BL_alcohol; blk_BL_anonvpn; blk_BL_automobile_bikes; blk_BL_automobile_boats; blk_BL_automobile_cars; blk_BL_automobile_planes; blk_BL_chat; blk_BL_costtraps; blk_BL_dating; blk_BL_downloads; blk_BL_drugs; blk_BL_dynamic; blk_BL_education_schools; blk_BL_finance_banking; blk_BL_finance_insurance; blk_BL_finance_moneylending; blk_BL_finance_other; blk_BL_finance_realestate; blk_BL_finance_trading; blk_BL_fortunetelling; blk_BL_forum; blk_BL_gamble; blk_BL_government; blk_BL_hacking; blk_BL_hobby_cooking; blk_BL_hobby_games-misc; blk_BL_hobby_games-online; blk_BL_hobby_gardening; blk_BL_hobby_pets; blk_BL_homestyle; blk_BL_hospitals; blk_BL_imagehosting; blk_BL_isp; blk_BL_jobsearch; blk_BL_library; blk_BL_military; blk_BL_models; blk_BL_movies; blk_BL_music; blk_BL_news; blk_BL_podcasts; blk_BL_politics; blk_BL_porn; blk_BL_radiotv; blk_BL_recreation_humor; blk_BL_recreation_martialarts; blk_BL_recreation_restaurants; blk_BL_recreation_sports; blk_BL_recreation_travel; blk_BL_recreation_wellness; blk_BL_redirector; blk_BL_religion; blk_BL_remotecontrol; blk_BL_ringtones; blk_BL_science_astronomy; blk_BL_science_chemistry; blk_BL_searchengines; blk_BL_sex_education; blk_BL_sex_lingerie; blk_BL_shopping; blk_BL_socialnet; blk_BL_spyware; blk_BL_tracker; blk_BL_updatesites; blk_BL_urlshortener; blk_BL_violence; blk_BL_warez; blk_BL_weapons; blk_BL_webmail; blk_BL_webphone; blk_BL_webradio; blk_BL_webtv; .
                          10.07.2017 17:05:35 [sg_create_config] Add blacklist entries
                          10.07.2017 17:05:35 [squidguard_rebuild_db] Start rebuild DB.
                          10.07.2017 17:05:24 [squidguard_rebuild_db] Create rebuild config '/usr/local/etc/squidGuard/squidGuard__usrdbrebuild.conf'.
                          10.07.2017 17:05:24 [sg_redirector_base_url] Select redirector base url (http://192.168.1.1:80/sgerror.php?url=403%20404&a=%a&n=%n&i=%i&s=%s&t=%t&;u=%u)
                          10.07.2017 17:05:24 [sg_create_simple_config] Warning Ignored empty item 'blacklist' = '/var/db/squidGuard/blacklist'.
                          10.07.2017 17:05:24 [sg_create_simple_config] Warning Ignored empty item 'whitelist' = '/var/db/squidGuard/whitelist'.
                          10.07.2017 17:05:24 [sg_create_simple_config] Begin with dbhome='/var/db/squidGuard'.
                          10.07.2017 17:05:24 [squidguard_rebuild_db] Begin with path '/var/db/squidGuard'.
                          10.07.2017 17:05:24 [sg_reconfigure_user_db] Add user entries
                          10.07.2017 17:05:24 [sg_reconfigure_user_db] Begin with '/var/db/squidGuard'
                          10.07.2017 16:36:15 [squid_reconfigure] Add new redirector options to Squid config.
                          10.07.2017 16:36:15 [squid_reconfigure] Remove old redirector options from Squid config.
                          10.07.2017 16:36:15 [sg_reconfigure] Save squidGuard config to '/usr/local/etc/squidGuard/squidGuard.conf'.
                          10.07.2017 16:36:15 [sg_redirector_base_url] Select redirector base url (http://192.168.1.1:80/sgerror.php?url=403%20&a=%a&n=%n&i=%i&s=%s&t=%t&u=%u)
                          10.07.2017 16:36:15 [sg_create_config] Add Default
                          10.07.2017 16:36:15 [sg_create_config] Add rewrites: safesearch;
                          10.07.2017 16:36:15 [sg_create_config] Add destinations: whitelist; blacklist;
                          10.07.2017 16:36:15 [sg_create_config] Added: blk_BL_adv; blk_BL_aggressive; blk_BL_alcohol; blk_BL_anonvpn; blk_BL_automobile_bikes; blk_BL_automobile_boats; blk_BL_automobile_cars; blk_BL_automobile_planes; blk_BL_chat; blk_BL_costtraps; blk_BL_dating; blk_BL_downloads; blk_BL_drugs; blk_BL_dynamic; blk_BL_education_schools; blk_BL_finance_banking; blk_BL_finance_insurance; blk_BL_finance_moneylending; blk_BL_finance_other; blk_BL_finance_realestate; blk_BL_finance_trading; blk_BL_fortunetelling; blk_BL_forum; blk_BL_gamble; blk_BL_government; blk_BL_hacking; blk_BL_hobby_cooking; blk_BL_hobby_games-misc; blk_BL_hobby_games-online; blk_BL_hobby_gardening; blk_BL_hobby_pets; blk_BL_homestyle; blk_BL_hospitals; blk_BL_imagehosting; blk_BL_isp; blk_BL_jobsearch; blk_BL_library; blk_BL_military; blk_BL_models; blk_BL_movies; blk_BL_music; blk_BL_news; blk_BL_podcasts; blk_BL_politics; blk_BL_porn; blk_BL_radiotv; blk_BL_recreation_humor; blk_BL_recreation_martialarts; blk_BL_recreation_restaurants; blk_BL_recreation_sports; blk_BL_recreation_travel; blk_BL_recreation_wellness; blk_BL_redirector; blk_BL_religion; blk_BL_remotecontrol; blk_BL_ringtones; blk_BL_science_astronomy; blk_BL_science_chemistry; blk_BL_searchengines; blk_BL_sex_education; blk_BL_sex_lingerie; blk_BL_shopping; blk_BL_socialnet; blk_BL_spyware; blk_BL_tracker; blk_BL_updatesites; blk_BL_urlshortener; blk_BL_violence; blk_BL_warez; blk_BL_weapons; blk_BL_webmail; blk_BL_webphone; blk_BL_webradio; blk_BL_webtv; .
                          10.07.2017 16:36:15 [sg_create_config] Add blacklist entries
                          10.07.2017 16:36:15 [squidguard_rebuild_db] Start rebuild DB.
                          10.07.2017 16:36:05 [squidguard_rebuild_db] Create rebuild config '/usr/local/etc/squidGuard/squidGuard__usrdbrebuild.conf'.
                          10.07.2017 16:36:05 [sg_redirector_base_url] Select redirector base url (http://192.168.1.1:80/sgerror.php?url=403%20404&a=%a&n=%n&i=%i&s=%s&t=%t&;u=%u)
                          10.07.2017 16:36:05 [sg_create_simple_config] Warning Ignored empty item 'blacklist' = '/var/db/squidGuard/blacklist'.
                          10.07.2017 16:36:05 [sg_create_simple_config] Warning Ignored empty item 'whitelist' = '/var/db/squidGuard/whitelist'.
                          10.07.2017 16:36:05 [sg_create_simple_config] Begin with dbhome='/var/db/squidGuard'.
                          10.07.2017 16:36:05 [squidguard_rebuild_db] Begin with path '/var/db/squidGuard'.
                          10.07.2017 16:36:05 [sg_reconfigure_user_db] Add user entries
                          10.07.2017 16:36:05 [sg_reconfigure_user_db] Begin with '/var/db/squidGuard'
                          09.07.2017 18:01:06 [squid_reconfigure] Add new redirector options to Squid config.
                          09.07.2017 18:01:06 [squid_reconfigure] Remove old redirector options from Squid config.
                          09.07.2017 18:01:06 [sg_reconfigure] Save squidGuard config to '/usr/local/etc/squidGuard/squidGuard.conf'.
                          09.07.2017 18:01:06 [sg_redirector_base_url] Select redirector base url (http://192.168.1.1:80/sgerror.php?url=403%20&a=%a&n=%n&i=%i&s=%s&t=%t&u=%u)
                          09.07.2017 18:01:06 [sg_create_config] Add Default
                          09.07.2017 18:01:06 [sg_create_config] Add rewrites: safesearch;
                          09.07.2017 18:01:06 [sg_create_config] Add destinations: whitelist; blacklist;
                          09.07.2017 18:01:06 [sg_create_config] Added: blk_BL_adv; blk_BL_aggressive; blk_BL_alcohol; blk_BL_anonvpn; blk_BL_automobile_bikes; blk_BL_automobile_boats; blk_BL_automobile_cars; blk_BL_automobile_planes; blk_BL_chat; blk_BL_costtraps; blk_BL_dating; blk_BL_downloads; blk_BL_drugs; blk_BL_dynamic; blk_BL_education_schools; blk_BL_finance_banking; blk_BL_finance_insurance; blk_BL_finance_moneylending; blk_BL_finance_other; blk_BL_finance_realestate; blk_BL_finance_trading; blk_BL_fortunetelling; blk_BL_forum; blk_BL_gamble; blk_BL_government; blk_BL_hacking; blk_BL_hobby_cooking; blk_BL_hobby_games-misc; blk_BL_hobby_games-online; blk_BL_hobby_gardening; blk_BL_hobby_pets; blk_BL_homestyle; blk_BL_hospitals; blk_BL_imagehosting; blk_BL_isp; blk_BL_jobsearch; blk_BL_library; blk_BL_military; blk_BL_models; blk_BL_movies; blk_BL_music; blk_BL_news; blk_BL_podcasts; blk_BL_politics; blk_BL_porn; blk_BL_radiotv; blk_BL_recreation_humor; blk_BL_recreation_martialarts; blk_BL_recreation_restaurants; blk_BL_recreation_sports; blk_BL_recreation_travel; blk_BL_recreation_wellness; blk_BL_redirector; blk_BL_religion; blk_BL_remotecontrol; blk_BL_ringtones; blk_BL_science_astronomy; blk_BL_science_chemistry; blk_BL_searchengines; blk_BL_sex_education; blk_BL_sex_lingerie; blk_BL_shopping; blk_BL_socialnet; blk_BL_spyware; blk_BL_tracker; blk_BL_updatesites; blk_BL_urlshortener; blk_BL_violence; blk_BL_warez; blk_BL_weapons; blk_BL_webmail; blk_BL_webphone; blk_BL_webradio; blk_BL_webtv; .
                          09.07.2017 18:01:06 [sg_create_config] Add blacklist entries
                          09.07.2017 18:01:06 [squidguard_rebuild_db] Start rebuild DB.
                          09.07.2017 18:00:56 [squidguard_rebuild_db] Create rebuild config '/usr/local/etc/squidGuard/squidGuard__usrdbrebuild.conf'.
                          09.07.2017 18:00:56 [sg_redirector_base_url] Select redirector base url (http://192.168.1.1:80/sgerror.php?url=403%20404&a=%a&n=%n&i=%i&s=%s&t=%t&;u=%u)
                          09.07.2017 18:00:56 [sg_create_simple_config] Warning Ignored empty item 'blacklist' = '/var/db/squidGuard/blacklist'.

                          Proxy Config # This file is automatically generated by pfSense

                          Do not edit manually !

                          http_port 192.168.1.1:3128
                          http_port 127.0.0.1:3128
                          icp_port 0
                          digest_generation off
                          dns_v4_first off
                          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 drobinson@brightsure.co.uk
                          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 off
                          pinger_program /usr/local/libexec/squid/pinger

                          logfile_rotate 2
                          debug_options rotate=2
                          shutdown_lifetime 3 seconds

                          Allow local network(s) on interface(s)

                          acl localnet src  192.168.1.0/24 127.0.0.0/8
                          forwarded_for on
                          httpd_suppress_version_string on
                          uri_whitespace strip

                          cache_mem 1000 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 1000 MB
                          cache_dir ufs /var/squid/cache 3000 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

                          ACLs all, manager, localhost, and to_localhost are predefined.

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

                          acl purge method PURGE
                          acl connect method CONNECT

                          Define protocols used for redirects

                          acl HTTP proto HTTP
                          acl HTTPS proto HTTPS
                          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

                          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

                          Setup allowed ACLs

                          Allow local network(s) on interface(s)

                          http_access allow localnet

                          Default block all to be sure

                          http_access deny allsrc

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                          • A
                            aGeekhere
                            last edited by

                            if you set squidguard to allow all do still get the issue?

                            Never Fear, A Geek is Here!

                            1 Reply Last reply Reply Quote 0
                            • 4
                              4Qman
                              last edited by

                              @aGeekHere:

                              if you set squidguard to allow all do still get the issue?

                              Hi, thank you for the reply.

                              I have it sorted now, i didn't go to internet properties/connections/LAN settings - tick automatically detect settings

                              At the moment I have Wpad.dat working, I also have MSSL MITM working on splice all, I have android working now (manually entered wpad.dat address).

                              Is this method the best functioning method, or am i better to setup a websever to to host the wpdad files?  What are the main benifits of setting up a VM hosting these files?

                              1 Reply Last reply Reply Quote 0
                              • A
                                aGeekhere
                                last edited by

                                Is this method the best functioning method, or am i better to setup a websever to to host the wpdad files?  What are the main benifits of setting up a VM hosting these files?

                                Not sure, maybe if you had a very large number of users you could use another webserver for the wpad.

                                I have it sorted now, i didn't go to internet properties/connections/LAN settings - tick automatically detect settings

                                Even if you left that unticked the transparent proxy should have still connected you, verify that the transparent proxy is working (e.g block port 80 and 443 and use a program that gets updates form the net to check).

                                Never Fear, A Geek is Here!

                                1 Reply Last reply Reply Quote 0
                                • R
                                  rebytr
                                  last edited by

                                  @4Qman:

                                  Hi,

                                  I am new to pfsense, can someone have a look at the attached image and tell me if it looks correct please.

                                  Was looking at this guide, https://doc.pfsense.org/index.php/Redirecting_all_DNS_Requests_to_pfSense and comparing to your screenshot.  What are the implications of unchecking the "invert match" box and not disabling NAT reflection?

                                  1 Reply Last reply Reply Quote 0
                                  • B
                                    bwlinux
                                    last edited by

                                    Thanks aGeekHere!  This guide encouraged me to revisit HTTPS filtering for several of my sites.

                                    The WPAD options seems great for PCs but didn't work well on Android devices.  Things get really difficult when you have 2 or more network interfaces you want to proxy/filter using WPAD.

                                    In the end, I just set up transparent proxy for both http and https. Creating a CA on the firewall and then assigning that in Squid for the CA along with "Splice All" for SSL/MITM Mode works great!

                                    I think it's been mentioned before but your guide would really benefit from having 2 completely separate sets of instructions for transparent only and WPAD only.

                                    1 Reply Last reply Reply Quote 0
                                    • A
                                      aGeekhere
                                      last edited by

                                      I now recommend that you use both, WPAC as the default and transparent with splice all as backup. So software that has no proxy settings still get redirected to the proxy in stead of getting blocked by the firewall rule 80 443. For android you can manually set the proxy, sometimes splice all can show SSL errors when web browsing. I will clean up the guide when I have time.

                                      Never Fear, A Geek is Here!

                                      1 Reply Last reply Reply Quote 0
                                      • M
                                        minhgi
                                        last edited by

                                        After using the guide and having everything setup correctly, I noticed pfblockerng easy_list stop blocking ads.  Have anyone have this issue and know how to fix it?

                                        1 Reply Last reply Reply Quote 0
                                        • V
                                          vielfede
                                          last edited by

                                          @aGeekHere:

                                          sometimes splice all can show SSL errors when web browsing.

                                          I'd say "often" a  lot of SSL errors!  ;)
                                          In my opinion Splice All is not usable in the way it is now (without WPAD).

                                          1 Reply Last reply Reply Quote 0
                                          • O
                                            originalsin
                                            last edited by

                                            guess it is way too late for asking abbration.

                                            But what does "Tic" stands for?

                                            I can not find out the Tic in Pfsense and can not figure it out.

                                            Plz somebody help me!!!

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