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    Alternative DNS Servers - no filter/censorship (buydomains.com problem)

    Scheduled Pinned Locked Moved General pfSense Questions
    72 Posts 11 Posters 15.4k Views
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    • K
      kejianshi
      last edited by

      Not sure what you mean by "Needle in a haystack"

      It will simply query the root servers for sites you visit very often instead of allowing them to age off.

      Yes, there will be more DNS traffic, but thats not a bad thing in anyway I can think of.

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      • DerelictD
        Derelict LAYER 8 Netgate
        last edited by

        That's how they found Bin Laden, or so I hear.  Constant DNS cache refreshes for 72virgins.haha.sexyfun.net.

        Chattanooga, Tennessee, USA
        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
        Do Not Chat For Help! NO_WAN_EGRESS(TM)

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        • K
          kejianshi
          last edited by

          I'll be  expecting boots at my door any moment then I guess…

          Since I couldn't find a good answer on how hardening DNSSEC and glue might impact my DNS performance, and no one answered my several posts on the subject, I just turned it on, turned on the Unwanted Reply Threshold also...

          If it does something unwanted, I will post back - somewhere...

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          • F
            firewalluser
            last edited by

            Just trying TTL 2147483647 which will generate its own operational signature.

            https://www.ietf.org/rfc/rfc2181.txt Section 8 TTL.

            Capitalism, currently The World's best Entertainment Control System and YOU cant buy it! But you can buy this, or some of this or some of these

            Asch Conformity, mainly the blind leading the blind.

            1 Reply Last reply Reply Quote 0
            • K
              kejianshi
              last edited by

              Ohhhhh. Tell me how that turns out…

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              • KOMK
                KOM
                last edited by

                Just today

                D-Link Routers Vulnerable To DNS Hijacking

                1 Reply Last reply Reply Quote 0
                • K
                  kejianshi
                  last edited by

                  Actually anything not running DNSSEC is vulnerable to this attack:

                  1st Man on the side attack where you someone listening passively on the side does packet injection and spoofs a DNS response faster than the real DNS server.  They send you to their fake server loaded with forged certs and forged websites that look like the real thing.  (Thats the really evil version) or perhaps they just redirect you to some BS crap shopping site.

                  2nd Once your server connects to theirs they fake the website you were trying to visit and complete the HTTPS transaction and forward you on to the real site - via their server.  Now they are the man in the middle and can read your supposedly encrypted traffic, inject packets inject malware, whatever.

                  So, thats pretty much 99% of the web users are vulnerable.

                  IMHO pfsense doesn't sell its self hard enough on its security features.  Not in terms average buyers can grasp anyway.

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                  • T
                    Trel
                    last edited by

                    @kejianshi:

                    1st Man on the side attack where you someone listening passively on the side does packet injection and spoofs a DNS response faster than the real DNS server.  They send you to their fake server loaded with forged certs and forged websites that look like the real thing.  (Thats the really evil version) or perhaps they just redirect you to some BS crap shopping site.

                    Wonder if that was the case with this one: https://forum.pfsense.org/index.php?topic=87491.0

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                    • K
                      kejianshi
                      last edited by

                      No idea - maybe.

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                      • M
                        MrGlasspoole
                        last edited by

                        Ok, i made some screen shoots of the settings i have now.

                        @kejianshi
                        I'm still not sure about the gateway.
                        You said pointing to the modem is how grandmother did it: https://forum.pfsense.org/index.php?topic=87678.msg483085#msg483085
                        But then you said: "Don't mess with the gateways".

                        And to make sure i get it right: With this settings i get name resolving directly from the 13 Root-Nameservers (Anycast aside)?
                        If thats the case then why everywhere are this alternative DNS server lists and why is this not the default in routers from ISPs?

                        I guess i change the title of this thread - maybe it helps others.

                        Interfaces---LAN.png
                        Interfaces---LAN.png_thumb
                        Interfaces---WAN.png
                        Interfaces---WAN.png_thumb
                        Services---DNS-Resolver.png
                        Services---DNS-Resolver.png_thumb
                        Services---DNS-Resolver---Advanced.png
                        Services---DNS-Resolver---Advanced.png_thumb
                        System---Gateways---Edit-gateway.png
                        System---Gateways---Edit-gateway.png_thumb
                        System---General-Setup.png
                        System---General-Setup.png_thumb

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                        • DerelictD
                          Derelict LAYER 8 Netgate
                          last edited by

                          Name servers that return a bullshit IP address instead of NXDOMAIN for A records that don't exist are an abomination.

                          I will be switching over to a resolver-based configuration this weekend now that I'm on 2.2.

                          Chattanooga, Tennessee, USA
                          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                          Do Not Chat For Help! NO_WAN_EGRESS(TM)

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

                            well your resolver is on all all, which is not how I would set it up.

                            Resolver should only listen on your lan port, and should only talk to other dns on your wan.

                            And don't see how you expect pfsense to resolve anything - so its not going to be able to check for updates..

                            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 24.11 | Lab VMs 2.8, 24.11

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                            • K
                              kejianshi
                              last edited by

                              You could deselect WAN without hurting anything or you could just not open port 53 on WAN…  Either way.  (P.S. Its not open) 
                              It should work and resolve just fine the way you have it here.

                              Easy way to check if your system is resolving and if you can get updates is to go to the main pfsense gui and see if it show "you are on current version"

                              If it does, your pfsense is resolving fine for its self and probably for all the other machines on the LAN.

                              Now, go to https://www.dnsleaktest.com/ and see how many resolvers show up.

                              Hopefully its like...1

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                              • M
                                MrGlasspoole
                                last edited by

                                Selecting just LAN on "Network Interfaces" and "Outgoing Network Interfaces" gives the error:
                                This system is configured to use the DNS Resolver as its DNS server, so Localhost or All must be selected in Network Interfaces.

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                                • K
                                  kejianshi
                                  last edited by

                                  Select all.  Port 53 is closed on the WAN.  No issues there.

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

                                    Now only the gateway question is still open :)

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

                                      Then select both lan and localhost ;)  ALL is BAD practice!!

                                      Here is mine

                                      setupdnsresolver.png
                                      setupdnsresolver.png_thumb

                                      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 24.11 | Lab VMs 2.8, 24.11

                                      1 Reply Last reply Reply Quote 0
                                      • K
                                        kejianshi
                                        last edited by

                                        I wouldn't screw with the gateway…  unless you are in the mood to upgrade to a ISP/Modem combo that gets you a public IP on the pfsense wan?

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                                        • K
                                          kejianshi
                                          last edited by

                                          Not sure if you know, but you select individual interfaces by holding the cntl key while clicking on the ones you want.

                                          What johnpoz is saying is best - I was trying to keep it simple…

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                                          • M
                                            MrGlasspoole
                                            last edited by

                                            @kejianshi:

                                            Not sure if you know, but you select individual interfaces by holding the cntl key while clicking on the ones you want.

                                            I know that :-) - My computer knowledge is good but pfSense is overwhelming :-)

                                            So the important part here is that on "Network Interfaces" you just have the internal and
                                            on "Outgoing Network Interfaces" the external stuff?

                                            Gateway:
                                            I did check my ISP router and i have the bridge option now.
                                            I made the hack a year ago and the option was not there - seems like after
                                            some firmware update it changed.
                                            I have a warning "from manufacture not supported change".

                                            So i can select LAN2 as bridged.
                                            But if i do that and connect my pfSense WAN NIC to LAN2 i can not reach the router anymore with 10.0.0.1.

                                            What changes do i need to make in pfSense to test it?
                                            I guess in "Interfaces > WAN" and "System > Routing > Gateways"

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