Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    PfBlocker

    Scheduled Pinned Locked Moved pfSense Packages
    896 Posts 143 Posters 1.3m Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • T
      taryezveb
      last edited by

      @marcelloc:

      There was a update on squid package today, apply it and see what happens.

      Squid was reinstalled with the latest version, but still the same.

      1 Reply Last reply Reply Quote 0
      • marcellocM
        marcelloc
        last edited by

        I'll try to reproduce it here.

        You get this memory alert once or after squid restart alerts are frequent?

        Treinamentos de Elite: http://sys-squad.com

        Help a community developer! ;D

        1 Reply Last reply Reply Quote 0
        • T
          taryezveb
          last edited by

          @marcelloc:

          I'll try to reproduce it here.

          You get this memory alert once or after squid restart alerts are frequent?

          The memory alerts only shows after a Squid restart. After the initial alerts there are no more alerts. At least that is what is occurring here.

          Dec 30 15:11:54 php: : There were error(s) loading the rules: /tmp/rules.debug:19: cannot define table pfBlockerTBG: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded - The line in question reads [19]: table <pfblockertbg>persist file "/var/db/aliastables/pfBlockerTBG.txt"

          Dec 30 15:11:54 php: : New alert found: There were error(s) loading the rules: /tmp/rules.debug:19: cannot define table pfBlockerTBG: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded The line in question reads [19]: table <pfblockertbg>persist file "/var/db/aliastables/pfBlockerTBG.txt"

          Dec 30 15:11:46 php: : The command '/sbin/pfctl -o basic -f /tmp/rules.debug' returned exit code '1', the output was '/tmp/rules.debug:19: cannot define table pfBlockerTBG: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded'

          Dec 30 15:11:16 php: : There were error(s) loading the rules: /tmp/rules.debug:19: cannot define table pfBlockerTBG: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded - The line in question reads [19]: table <pfblockertbg>persist file "/var/db/aliastables/pfBlockerTBG.txt"

          Dec 30 15:11:16 php: : New alert found: There were error(s) loading the rules: /tmp/rules.debug:19: cannot define table pfBlockerTBG: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded The line in question reads [19]: table <pfblockertbg>persist file "/var/db/aliastables/pfBlockerTBG.txt"

          Dec 30 15:11:07 php: : The command '/sbin/pfctl -o basic -f /tmp/rules.debug' returned exit code '1', the output was '/tmp/rules.debug:19: cannot define table pfBlockerTBG: Cannot allocate memory pfctl: Syntax error in config file: pf rules not loaded'
          Dec 30 15:10:32 php: /pkg_edit.php: Reloading Squid for configuration sync
          Dec 30 15:10:32 check_reload_status: Reloading filter
          Dec 30 15:10:32 check_reload_status: Syncing firewall
          Dec 30 15:10:32 check_reload_status: Reloading filter
          Dec 30 15:10:31 php: /pkg_edit.php: Reloading Squid for configuration sync</pfblockertbg></pfblockertbg></pfblockertbg></pfblockertbg>

          1 Reply Last reply Reply Quote 0
          • T
            taryezveb
            last edited by

            When that error occurs, Squid fails to work as a transparent proxy. Squid still works if you manually set the proxy settings in a browser for example. I disabled pfBlocker for now. Will try a few things.

            1 Reply Last reply Reply Quote 0
            • L
              LEPM
              last edited by

              @marcelloc:

              Increase even more Firewall Maximum Table Entries in system->advanced -> firewall/NAT

              not!!!!      Firewall Maximum States ;)

              Your new system is probably coming with some hyper trash like Windows 8

              1 Reply Last reply Reply Quote 0
              • marcellocM
                marcelloc
                last edited by

                PfBlocker use url tables, so it is firewall maximum table entries for sure.

                Firewall maximum states are related to active connections. When you reach this value, you can't do anything on firewall.

                Treinamentos de Elite: http://sys-squad.com

                Help a community developer! ;D

                1 Reply Last reply Reply Quote 0
                • T
                  taryezveb
                  last edited by

                  After trying out a few things all is fine for now. Disabled the TBG List and left the Bluetack enabled. Also in System -> Advanced -> Firewall and NAT; Firewall Maximum Table Entries, removed that large number[9999999999999999] from there. Restarted pfBlocker and now there are no error messages and Squid works as transparent proxy, even with pfBlocker enabled. So it seems the TBG list is the cause of all these issues I was having.

                  TBG list:

                  http://list.iblocklist.com/?list=ijfqtofzixtwayqovmxn&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=ecqbsykllnadihkdirsh&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=tbnuqfclfkemqivekikv&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=ewqglwibdgjttwttrinl&fileformat=p2p&archiveformat=gz

                  Bluetack list:

                  http://list.iblocklist.com/?list=bt_level1&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=bt_level2&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=bt_level3&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=bt_ads&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=bt_spyware&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=bt_proxy&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=bt_templist&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=bt_hijacked&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=bt_dshield&fileformat=p2p&archiveformat=gz
                  http://list.iblocklist.com/?list=bt_bogon&fileformat=p2p&archiveformat=gz

                  1 Reply Last reply Reply Quote 0
                  • marcellocM
                    marcelloc
                    last edited by

                    You may try if you want add each TBG list until you find what list get errors.

                    Treinamentos de Elite: http://sys-squad.com

                    Help a community developer! ;D

                    1 Reply Last reply Reply Quote 0
                    • T
                      taryezveb
                      last edited by

                      @marcelloc:

                      You may try if you want add each TBG list until you find what list get errors.

                      Yes, I'm going to try that. I might spring for the i-block lists, need to do some research on that. Are the i-block lists any better than the public lists?

                      1 Reply Last reply Reply Quote 0
                      • T
                        taryezveb
                        last edited by

                        Did some testing.

                        With the following in the TBG list, whenever I try to enable them[one at a time], get the Fatal error below.

                        http://list.iblocklist.com/?list=ijfqtofzixtwayqovmxn&fileformat=p2p&archiveformat=gz
                        http://list.iblocklist.com/?list=ecqbsykllnadihkdirsh&fileformat=p2p&archiveformat=gz

                        Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 8650655 bytes) in /usr/local/pkg/pfblocker.inc on line 268

                        Note, the Bluetack list is still enabled. When testing the above.

                        1 Reply Last reply Reply Quote 0
                        • marcellocM
                          marcelloc
                          last edited by

                          the total download exceeds php memory limit.

                          try to apply one list at time

                          Treinamentos de Elite: http://sys-squad.com

                          Help a community developer! ;D

                          1 Reply Last reply Reply Quote 0
                          • T
                            taryezveb
                            last edited by

                            @marcelloc:

                            the total download exceeds php memory limit.

                            try to apply one list at time

                            @taryezveb:

                            whenever I try to enable them[one at a time]

                            I did, or do you mean something else?

                            1 Reply Last reply Reply Quote 0
                            • marcellocM
                              marcelloc
                              last edited by

                              I mean that.  Sorry, I didn't saw the "[one at a time]"

                              Treinamentos de Elite: http://sys-squad.com

                              Help a community developer! ;D

                              1 Reply Last reply Reply Quote 0
                              • T
                                taryezveb
                                last edited by

                                @marcelloc:

                                I mean that.  Sorry, I didn't saw the "[one at a time]"

                                No problem and guess no more lists for me :(

                                1 Reply Last reply Reply Quote 0
                                • marcellocM
                                  marcelloc
                                  last edited by

                                  The are some file hacks to increase php memory limit, but it is not supported or recommended by core team.

                                  DO IT AT YOUR OWN RISK

                                  edit ini_set("memory_limit","128M"); to 500M in /etc/inc/config.inc file

                                  and include ini_set('memory_limit', '490M'); on pfblocker.inc

                                  Do not increase it to a value greater then 510M, suhosin.memory_limit is set to 512M

                                  Treinamentos de Elite: http://sys-squad.com

                                  Help a community developer! ;D

                                  1 Reply Last reply Reply Quote 0
                                  • T
                                    taryezveb
                                    last edited by

                                    @marcelloc:

                                    edit ini_set("memory_limit","128M"); to 500M in /etc/inc/config.inc file

                                    and include ini_set('memory_limit', '490M'); on pfblocker.inc

                                    Do not increase it to a value greater then 510M, suhosin.memory_limit is set to 512M

                                    I take it a reboot is needed for these changes to take affect?

                                    1 Reply Last reply Reply Quote 0
                                    • marcellocM
                                      marcelloc
                                      last edited by

                                      Not at all. There is no changes on php.ini

                                      Treinamentos de Elite: http://sys-squad.com

                                      Help a community developer! ;D

                                      1 Reply Last reply Reply Quote 0
                                      • T
                                        taryezveb
                                        last edited by

                                        Hmm, I edited the following to test:

                                        /etc/inc/config.inc  and changed  ini_set("memory_limit","128M"); to 500M

                                        /usr/local/pkg/pfblocker.inc  and added  ini_set('memory_limit', '490M');

                                        Then tried to enable the TBG list, but still get the Fatal error. Did I do something wrong?

                                        1 Reply Last reply Reply Quote 0
                                        • marcellocM
                                          marcelloc
                                          last edited by

                                          Not sure, I did it on a x64 virtual machine and I do not get php limit errors.

                                          All files are uploaded.

                                          EDIT

                                          With all these large files, my virtual machine gets 100% cpu for more then a minute and even with a very large table size, it reach virtual machine memory limit (384Mb).

                                          Treinamentos de Elite: http://sys-squad.com

                                          Help a community developer! ;D

                                          1 Reply Last reply Reply Quote 0
                                          • marcellocM
                                            marcelloc
                                            last edited by

                                            Something interesting about table-entries limit:

                                            I've set up maximum table entries to a very high value 99999999999 at gui and could see it reflected on /tmp/rules.debug

                                            BUT

                                            on pfctl -sa I get this:
                                            LIMITS:
                                            states        hard limit  1000000
                                            src-nodes     hard limit  1000000
                                            frags         hard limit     5000
                                            tables        hard limit     1000
                                            table-entries hard limit 1215752191

                                            I saw my virtual machine freezing console with 99999999999 value, so I reduced it on gui to 5000000

                                            EDIT

                                            After 2G RAM, Firewall Maximum Table Entries set to 5000000 and a reboot

                                            I get no erros with both large lists applied

                                            as x64 version already has ini_set("memory_limit","256M");, I've just included ini_set('memory_limit', '250M'); on line two of /usr/local/pkg/pfblocker.inc

                                            Treinamentos de Elite: http://sys-squad.com

                                            Help a community developer! ;D

                                            1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.