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    SSLBUMP without MITM

    Scheduled Pinned Locked Moved Cache/Proxy
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    • D
      doktornotor Banned
      last edited by

      Well yes, that will no doubt improve splice since you get whole lot more information available at steps 2/3, as explained here:
      https://github.com/pfsense/FreeBSD-ports/blob/devel/www/pfSense-pkg-squid/files/usr/local/pkg/squid.inc#L1539

      The above makes bumping impossible, however.

      It's not possible to do zillion variants in the GUI. Use Advanced Options, Custom ACLs (before auth).

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      • S
        shonjir
        last edited by

        The above makes bumping impossible, however.

        This is understood.  For my use case, I don't need full blown MiTM - logging the site name and simple domain blocking are sufficient.

        Right now I'm using custom ACLs for this.  It's a hack (because it supersedes the auto-generated ssl_bump directives that follow), but it works.

        It would be nice if it were available as a simple toggle in the config or if the various ssl config options were exposed for customization under 'advanced', but it works reasonably well as-is.

        Thank you for your work making this tool available!

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        • D
          doktornotor Banned
          last edited by

          I'll see if something reasonable can be added for

          • splice everything without bump (i.e., splice all)
          • custom splice ACLs/settings (some advanced textarea burried somewhere, if you break it, your problem)

          without overcomplicating the GUI and confusing everyone.

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          • D
            doktornotor Banned
            last edited by

            OK, how's this?

            https://github.com/pfsense/FreeBSD-ports/pull/269

            ssl_mitm_mode_01.png
            ssl_mitm_mode_01.png_thumb
            ssl_mitm_mode_02.png
            ssl_mitm_mode_02.png_thumb

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            • jimpJ
              jimp Rebel Alliance Developer Netgate
              last edited by

              Looks great, we're getting that PR merged in right now, thanks!

              Remember: Upvote with the 👍 button for any user/post you find to be helpful, informative, or deserving of recognition!

              Need help fast? Netgate Global Support!

              Do not Chat/PM for help!

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              • D
                doktornotor Banned
                last edited by

                Thanks for testing/feedback. Any volunteers to fixrewrite SquidGuard now? (No, I cannot do it. Tried many times, unable to work with that code for more than a couple of minutes.)

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                • F
                  fabiomello
                  last edited by

                  e2guardian its more active…
                  if you want to replace squidGuard with e2guardian i could do this!

                  what you think?

                  https://github.com/e2guardian/e2guardian

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                  • D
                    doktornotor Banned
                    last edited by

                    @fabiomello:

                    e2guardian its more active…
                    if you want to replace squidGuard with e2guardian i could do this!

                    what you think?

                    https://github.com/e2guardian/e2guardian

                    Hmmm… good luck.

                    • https://forum.pfsense.org/index.php?topic=87526.0
                    • https://github.com/pfsense/pfsense-packages/pull/866
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                    • jimpJ
                      jimp Rebel Alliance Developer Netgate
                      last edited by

                      From the history there it looks like it had a similar problem to squidGuard. Whatever happens, it needs a ground-up rewrite with up-to-date style and practices all-around.

                      Remember: Upvote with the 👍 button for any user/post you find to be helpful, informative, or deserving of recognition!

                      Need help fast? Netgate Global Support!

                      Do not Chat/PM for help!

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                      • D
                        doktornotor Banned
                        last edited by

                        Yeah. The XMLs in the linked e2guardian PR would be a good starting point to get a grip of potential feature set. The PHP code there still needs major work, though it must have been a  lot better than SquidGuard, considering I've been able to somehow finish the code style at least. :P

                        The PHP-generated package XML is a major can of worms there.

                        Plus note, that PR was for 2.2.x, lots of changes meanwhile.

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                        • S
                          susamlicubuk
                          last edited by

                          Good job. Congratulations.
                          Tag_none / 200 for all https and ip address is not good to appear in logs
                          Do you have a solution for this problem?
                          A manual DNS problem can sometimes cause the page not found error
                          We continue to test this issue

                          Tag_None.JPG
                          Tag_None.JPG_thumb

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                          • D
                            doktornotor Banned
                            last edited by

                            And the issue is exactly what? TAG_NONE/XXX means spliced connection. It works. Really nothing to fix here. This is a TCP tunnel, Squid won't handle any HTTP there.

                            http://squid-web-proxy-cache.1019090.n4.nabble.com/TAG-NONE-xxxx-td4672150.html

                            If you have issues with some sites, you'll need to use some custom ACL and custom config for that at the moment, I'm afraid.

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                            • S
                              susamlicubuk
                              last edited by

                              @doktornotor:

                              And the issue is exactly what? TAG_NONE/XXX means spliced connection. It works. Really nothing to fix here. This is a TCP tunnel, Squid won't handle any HTTP there.

                              http://squid-web-proxy-cache.1019090.n4.nabble.com/TAG-NONE-xxxx-td4672150.html

                              If you have issues with some sites, you'll need to use some custom ACL and custom config for that at the moment, I'm afraid.

                              I have tested it for a long time on the old version
                              I have tested the following settings
                              I used 2 different settings

                              acl https_proto proto https
                              always_direct allow https_proto
                              ssl_bump none localhost
                              sslproxy_options NO_SSLv2,NO_SSLv3,No_Compression
                              sslproxy_cipher ALL:!SSLv2:!ADH:!DSS:!MD5:!EXP:!DES:!PSK:!SRP:!RC4:!IDEA:!SEED:!aNULL:!eNULL

                              TLS/SSL bumping definitions

                              acl tls_s1_connect at_step SslBump1
                              acl tls_s2_client_hello at_step SslBump2
                              acl tls_s3_server_hello at_step SslBump3

                              TLS/SSL bumping steps

                              ssl_bump peek tls_s1_connect all
                              ssl_bump splice all

                              peek at TLS/SSL connect data

                              splice: no active bumping

                              acl bump_step1 at_step SslBump1
                              ssl_bump peek bump_step1 all
                              ssl_bump splice all
                              sslproxy_cert_error deny all
                              ssl_bump splice whitelist
                              ssl_bump bump all

                              There are too many reverse ip addresses in squid logs.
                              So the lightsquid report is mixed.
                              Maybe it's about reverse proxy.
                              It works fine at startup
                              But there are some page faults that are sometimes not found when using for a long time.
                              (Google search result after clicking on page unresponsive or https sites sometimes very slow)
                              I think squid is having trouble with https dns resolution.
                              I only saw problems with windows pc's
                              I have not received any errors on iOS and android mobile devices
                              This caused the reason for not continuing with wpad for PCs.
                              But mobile devices can use it.

                              We can do acl setting but we need to enter too many https domain gui den
                              A difficult and problematic job
                              But I added some sites squid- acl- white list
                              I'm not sure we're adding it this way

                              ..google.com
                              .
                              .google.com.tr

                              Please manually enter external dns on windows computers and test
                              This problem is a bit strange
                              Sometimes page not found or too slow browser problem
                              For example 8.8.8.8 or open dns
                              Maybe we can solve this problem with all the DNS requests with the Pfsense redirection rule.

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                              • D
                                doktornotor Banned
                                last edited by

                                Please, start your own thread. DNS issues are totally off-topic here. Also, this thread is NOT about reverse proxy, at all. Thanks.

                                Finally, as noted above and linked on the Squid ML, the log is absolutely normal, expected and there is nothing that could be done here. If you don't want things spliced, then don't use splice. If you don't want logs, don't log. If you need logs filtered, you'll need to filter them as you need. And if you want something better than TAG_NONE in logs, you'll need to get that implemented upstream.

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                                • S
                                  shonjir
                                  last edited by

                                  @doktornotor:

                                  OK, how's this?

                                  https://github.com/pfsense/FreeBSD-ports/pull/269

                                  This is awesome, thanks @doktornotor!  I'll be installing this package and testing shortly.

                                  Edit:  Package works great!  One thing I noticed is that custom MITM options only get added when 'custom' mode is set - the package works fine as is, but a note in the help text would make this clearer.

                                  Thanks again!

                                  1 Reply Last reply Reply Quote 0
                                  • S
                                    shonjir
                                    last edited by

                                    @jimp:

                                    From the history there it looks like it had a similar problem to squidGuard. Whatever happens, it needs a ground-up rewrite with up-to-date style and practices all-around.

                                    @doktornotor:

                                    Yeah. The XMLs in the linked e2guardian PR would be a good starting point to get a grip of potential feature set. The PHP code there still needs major work, though it must have been a  lot better than SquidGuard, considering I've been able to somehow finish the code style at least. :P

                                    Maybe the right solution isn't to rewrite/replace squidGuard but to abandon it altogether?

                                    There's at least one provider of blocklists that provides Squid ACL format, so from a blocklist/whitelist perspective it seems the necessary functionality is there - what's lacking is translation of the categorized blocklists into Squid ACLs.

                                    It seems that an interface to translate existing squidGuard blocklist format and category management into the necessary ACLs might bridge the gap nicely.  The e2 package might provide base for this.

                                    Is this an approach that might be feasible?

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                                    • D
                                      doktornotor Banned
                                      last edited by

                                      @shonjir:

                                      but a note in the help text would make this clearer.

                                      Apparently it wouldn't, because it's already there (twice - at the checkbox info and at the textarea info), but you still didn't read it.  :P (Try clicking the blue "i")

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                                      • P
                                        pfsensation
                                        last edited by

                                        Thanks for the fantastic work Doktornotor. I am loving the new updates to Squid and how user friendly you are making it. Even the small things like the explanation. Helps me out a lot! Thanks again mate!

                                        EDIT : I'm having issues with splice all messing up certain apps such as Telegram, or Instagram (sometimes). On Telegram it was getting no connection to their servers at all, I turned off the splice all setting. Everything worked perfectly, put it back on, messages went through, images didn't work. Turned splice all off, images, everything worked…It's very strange.

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                                        • D
                                          doktornotor Banned
                                          last edited by

                                          Not using Telegram or Instagram (or Facebook, or Twitter). Will be of no help there. Maybe someone else.

                                          1 Reply Last reply Reply Quote 0
                                          • S
                                            shonjir
                                            last edited by

                                            @doktornotor:

                                            Apparently it wouldn't, because it's already there (twice - at the checkbox info and at the textarea info), but you still didn't read it.  :P (Try clicking the blue "i")

                                            Actually I did read them, but the descriptions didn't seem to be fully clear to me.  ???

                                            I do appreciate the updates however - they're working great.  8)

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