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    Creating My Own IP4 Deny List Within PFB

    Scheduled Pinned Locked Moved General pfSense Questions
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    • LPD7L Offline
      LPD7 @johnpoz
      last edited by

      @johnpoz
      You just id'd my next issue...Sudo is not available and I cant do apt-get or any update. I was trying to use nano to edit the txt file which is how I stumble upon this. Not sure why. I know I did this on my Ubuntu VM instances from the terminal but dont recall installing any packages on the FW outside of what PFS installed when I built it.

      How do i crack this nut?

      Thinking cap is on tonight.

      Intelligence is not a substitute for common sense.
      Intel i5-3427 * 1.80GHz * 8GB Memory * 100GB HDD
      Putting legacy equipment into service and out of landfills.

      S johnpozJ 2 Replies Last reply Reply Quote 0
      • S Offline
        SteveITS Rebel Alliance @LPD7
        last edited by

        @lpd7 you’re making it hard. :)

        Diagnostics/Edit file.

        System/Packages , install sudo package.

        pfSense is not Linux, and it isn’t designed to have lots of things installed on it.

        Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
        When upgrading, allow 10-15 minutes to reboot, or more depending on packages, and device or disk speed.
        Upvote 👍 helpful posts!

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        • johnpozJ Offline
          johnpoz LAYER 8 Global Moderator @LPD7
          last edited by

          @lpd7 @SteveITS is right I think your making this harder than it needs to be, and just install the sudo package via the gui

          pkg.jpg

          Also to the linux comment by Steve - while sure there is cmd line, and stuff you can do from that - generally speaking pfsense is meant to be fully managed by the gui. You should really never have to do anything directly from the cmd line.

          While you might be used to editing files directly on linux, conf files, and etc - with pfsense your meant to do it via the gui.

          Also nano can just be installed with pkg install nano

          I have it installed on mine, it is in the pfsense repo

          [22.05-RELEASE][admin@sg4860.local.lan]/root: pkg info nano
          nano-6.0
          Name           : nano
          Version        : 6.0
          Installed on   : Sat Jul  2 09:25:52 2022 CDT
          Origin         : editors/nano
          Architecture   : FreeBSD:12:amd64
          Prefix         : /usr/local
          Categories     : editors
          Licenses       : GPLv3
          Maintainer     : danilo@FreeBSD.org
          WWW            : http://www.nano-editor.org/
          Comment        : Nano's ANOther editor, an enhanced free Pico clone
          Options        :
                  DOCS           : off
                  EXAMPLES       : off
                  NLS            : on
          Shared Libs required:
                  libintl.so.8
          Annotations    :
                  FreeBSD_version: 1203506
                  build_timestamp: 2022-06-01T19:10:49+0000
                  built_by       : poudriere-git-3.3.99.20211130
                  port_checkout_unclean: no
                  port_git_hash  : 44b5542e32b4
                  ports_top_checkout_unclean: yes
                  ports_top_git_hash: eac3af4a7698
                  repo_type      : binary
                  repository     : pfSense
          Flat size      : 2.38MiB
          Description    :
          nano is a small, free and friendly editor which aims to replace
          Pico, the default editor included in the non-free Pine package.
          Rather than just copying Pico's look and feel, nano also implements
          some missing (or disabled by default) features in Pico, such as
          "search and replace" and "goto line number".
          
          WWW: http://www.nano-editor.org/
          [22.05-RELEASE][admin@sg4860.local.lan]/root: 
          

          If what your looking to do is block IPs and CIDRs - that is just much easier to do with the built in aliases to be honest via gui, you can load in a bunch if you have them already in some other file.

          import.jpg

          You can then just edit that added to it remove from it via the gui.

          An intelligent man is sometimes forced to be drunk to spend time with his fools
          If you get confused: Listen to the Music Play
          Please don't Chat/PM me for help, unless mod related
          SG-4860 25.07 | Lab VMs 2.8, 25.07

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          • stephenw10S Online
            stephenw10 Netgate Administrator
            last edited by

            Yes, 'big' here would be a list of >10,000 subnets for example.

            If you are dealing with, say, <1000 subnets then just use an alias in pfSense directly.

            Side note; whilst not as powerful as Nano the Easy Editor ee is included in pfSense by default and is more than enough to edit a few txt files. Also it has almost zero learning curve!

            Steve

            LPD7L 1 Reply Last reply Reply Quote 1
            • LPD7L Offline
              LPD7 @stephenw10
              last edited by LPD7

              @stephenw10 @johnpoz @SteveITS
              All good info, I know that I may be going about this the hard way but thats how I learn that is until my brain overloads and I need to take a twizzler and pepsi break or maybe something stronger like a skittles and red bull. Let me digest this and take some notes and summarize and see if I cant settle on a solution you think would work best. Thank you.

              Intelligence is not a substitute for common sense.
              Intel i5-3427 * 1.80GHz * 8GB Memory * 100GB HDD
              Putting legacy equipment into service and out of landfills.

              1 Reply Last reply Reply Quote 0
              • LPD7L Offline
                LPD7
                last edited by

                @lpd7 said in Creating My Own IP4 Deny List Within PFB:

                @stephenw10 @johnpoz @SteveITS

                Hello all my apologies for the delay but I can only devote time in chunks, my family wont give me space to play unless its something they want to play. I have to remind myself where I left off but I did enter a bunch of TikTok ip addresses via the bulk import option but yet I can still access the web site, I am going to do a bit more digging to see if I cant locate more addresses to see if there are others that were missed. Since the kids are back to school my oldest is once again "playing silly buggers" so I have to find a way to clamp down or at the very least log with specific detail (url, duration, frequency, etc) what they are up to so we can decide on how best to address or ban the devices all together (now wouldnt that make me popular). I will regroup and see where I had left off (need to take notes) and go from there. Thanks for all of your help.

                Intelligence is not a substitute for common sense.
                Intel i5-3427 * 1.80GHz * 8GB Memory * 100GB HDD
                Putting legacy equipment into service and out of landfills.

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                • stephenw10S Online
                  stephenw10 Netgate Administrator
                  last edited by

                  Something like Tiktok exists over many, many IP addresses. If I was attempting that I would first try using their AS number in an alias via pfBlocker. That usually blocks enough things to make it unusable even if not blocked entirely. Works quite well for Facebook and Netflix. I've never tried it for Tikok.

                  Steve

                  LPD7L 1 Reply Last reply Reply Quote 0
                  • LPD7L Offline
                    LPD7 @stephenw10
                    last edited by LPD7

                    @stephenw10
                    Hey Stephen thanks for the recommend, I may give this a whirl. Now the question, how do I find the AS numbers? I did a search for TikTok AS routing and nothing came up, gonna have to do a bit more research. Would they be listed in an internet registry somewhere? Thanks.

                    Intelligence is not a substitute for common sense.
                    Intel i5-3427 * 1.80GHz * 8GB Memory * 100GB HDD
                    Putting legacy equipment into service and out of landfills.

                    johnpozJ 1 Reply Last reply Reply Quote 0
                    • johnpozJ Offline
                      johnpoz LAYER 8 Global Moderator @LPD7
                      last edited by johnpoz

                      @lpd7

                      tiktok.jpg

                      its right there built into pfblocker

                      But there prob way more than that - because I believe lots of it is hosted on other CDNs

                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                      If you get confused: Listen to the Music Play
                      Please don't Chat/PM me for help, unless mod related
                      SG-4860 25.07 | Lab VMs 2.8, 25.07

                      LPD7L 1 Reply Last reply Reply Quote 0
                      • stephenw10S Online
                        stephenw10 Netgate Administrator
                        last edited by

                        Yup. Many, many IPs!
                        But that's usually enough to break it sufficiently. 😉

                        LPD7L 1 Reply Last reply Reply Quote 0
                        • LPD7L Offline
                          LPD7 @johnpoz
                          last edited by

                          @johnpoz
                          Thanks for that John. Just by way of education, how would I find all the numbers associated with a domain? I found https://ipinfo.io which had the AS# you mentioned and seems if I input an IP it will provide the AS# is there a way (hoping) where I can input the domain name and get a complete list?

                          Intelligence is not a substitute for common sense.
                          Intel i5-3427 * 1.80GHz * 8GB Memory * 100GB HDD
                          Putting legacy equipment into service and out of landfills.

                          johnpozJ 1 Reply Last reply Reply Quote 0
                          • LPD7L Offline
                            LPD7 @stephenw10
                            last edited by

                            @stephenw10
                            So if I filter one or two AS's it should be enough to break it to the point where it becomes unusable?

                            Intelligence is not a substitute for common sense.
                            Intel i5-3427 * 1.80GHz * 8GB Memory * 100GB HDD
                            Putting legacy equipment into service and out of landfills.

                            1 Reply Last reply Reply Quote 0
                            • stephenw10S Online
                              stephenw10 Netgate Administrator
                              last edited by

                              Yup, that has been my experience with other sites like Netflix and Facebook.

                              1 Reply Last reply Reply Quote 0
                              • johnpozJ Offline
                                johnpoz LAYER 8 Global Moderator @LPD7
                                last edited by johnpoz

                                @lpd7 said in Creating My Own IP4 Deny List Within PFB:

                                find all the numbers associated with a domain?

                                Can entail some detective work to be sure. For example you have www.domain.com, while easy enough to look up that IP.. And from that IP get the ASN that IP is part of, so any other IPs in that ASN.

                                But what if this company using domain.com also hosts their backend stuff for their services of CDNnetwork, or OtherCompany, etc. etc..

                                So while you might be able to block some of their front end stuff they host on ASN1, but they could providing their whole software or system using ASN2, and ASNX, etc.

                                The more global and complex a system might be, the harder it can be to block or find all the possible IPblocks being used to host that system on a global scale. Don't forget IPv6 as well - that would be completely different ASNs

                                And don't forget if you start blocking CDNnetworkX ASN, you could end up blocking other stuff hosted there that you didn't want to block.

                                If it was me, I would just block on dns - don't allow clients to use external dns. Blocking doh can come with its own headaches, but easier than trying to block a huge list of IPs service might use, and some of these ip ranges these days quite often shared with other services you might not want to block.. Most everything these days is hosted of very large CDNs (content delivery network)..

                                Blocking those can be very problematic when comes to stuff you want to work, now not working.

                                Prob easier to just find the fqdn client is trying to access to get it to said service, and block those via dns.

                                An intelligent man is sometimes forced to be drunk to spend time with his fools
                                If you get confused: Listen to the Music Play
                                Please don't Chat/PM me for help, unless mod related
                                SG-4860 25.07 | Lab VMs 2.8, 25.07

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