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    DNS Resolver

    2.2 Snapshot Feedback and Problems - RETIRED
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    • D
      dstroot
      last edited by

      My bad.  I wasn't filling it out correctly - it works if you do it as I show in the attached.

      blocked.png
      blocked.png_thumb

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      • H
        Hugovsky
        last edited by

        Can I pass "include: /etc/unbound/local-blocking-data.conf" in the advanced field of the resolver? I want to block some domains.

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        • H
          Hugovsky
          last edited by

          Apparently the options in the advanced field are not parsed to the config file. Am I doing it wrong?

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          • E
            Escorpiom
            last edited by

            I'm sorry to say that Unbound in 2.2 beta has (still) issues:

            Nov 12 18:21:42	unbound: [94783:0] notice: Restart of unbound 1.4.22.
Nov 12 18:21:42	unbound: [94783:0] warning: too many file descriptors requested. The builtinmini-event cannot handle more than 1024\. Config for less fds or compile with libevent
Nov 12 18:21:42	unbound: [94783:0] warning: continuing with less udp ports: 91

            I've seen this a couple of times here, but no solution was found.
            From what can be found on the web, it seems to be a problem with multicore cpu's (mine's a 2558 SOC).
            The "Number of queries per thread" in the web interface shows 512, but in the actual config file it's still set at 1024.

            The value should sit around 250 for a 4-core cpu, not exceeding a total of 1024.
            Manually adjusting the Unbound config is no use, after saving a change in the admin interface, it resets to 1024 again.

            This issue is causing Unbound to restart and when it does, delays the DNS lookups.
            Old bug that really need to be fixed.

            Cheers.

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            • H
              Hugovsky
              last edited by

              Seems some options are not parsed to the config file. I've already posted about the advanced field, but I've found another:

              2.2-BETA (amd64)
              built on Thu Nov 13 06:05:47 CST 2014
              FreeBSD 10.1-RELEASE

              check in the config file below and check the pic:

              /var/unbound: cat unbound.conf
              ##########################

              Unbound Configuration

              ##########################

              Server configuration

              server:
              chroot: /var/unbound
              username: "unbound"
              directory: "/var/unbound"
              pidfile: "/var/run/unbound.pid"
              use-syslog: yes
              port: 53
              verbosity: 1
              harden-referral-path: no
              do-ip4: yes
              do-ip6: yes
              do-udp: yes
              do-tcp: yes
              do-daemonize: yes
              module-config: "validator iterator"
              unwanted-reply-threshold: 0
              num-queries-per-thread: 1024
              jostle-timeout: 200
              infra-host-ttl: 900
              infra-lame-ttl: 900
              infra-cache-numhosts: 10000
              outgoing-num-tcp: 10
              incoming-num-tcp: 10
              edns-buffer-size: 4096
              cache-max-ttl: 86400
              cache-min-ttl: 0
              harden-dnssec-stripped: yes
              num-threads: 2
              msg-cache-slabs: 4
              rrset-cache-slabs: 4
              infra-cache-slabs: 4
              key-cache-slabs: 4
              msg-cache-size: 4m
              rrset-cache-size: 8m
              outgoing-range: 462
              #so-rcvbuf: 4m
              auto-trust-anchor-file: /var/unbound/root.key
              prefetch: no
              prefetch-key: no

              Statistics

              Unbound Statistics

              statistics-interval: 0
              extended-statistics: yes
              statistics-cumulative: yes

              Interface IP(s) to bind to

              interface: 192.168.50.1
              interface: 10.1.2.1
              interface: 192.168.51.1
              interface: 127.0.0.1
              interface: ::1

              Outgoing interfaces to be used

              outgoing-interface: #####
              outgoing-interface: #####

              DNS Rebinding

              For DNS Rebinding prevention

              private-address: 10.0.0.0/8
              private-address: 172.16.0.0/12
              private-address: 192.168.0.0/16
              private-address: 192.254.0.0/16
              private-address: fd00::/8
              private-address: fe80::/10

              Set private domains in case authoritative name server returns a Private IP address

              private-domain: "hsnetworks"
              domain-insecure: "hsnetworks"

              Access lists

              include: /var/unbound/access_lists.conf

              Static host entries

              include: /var/unbound/host_entries.conf

              Domain overrides

              include: /var/unbound/domainoverrides.conf

              Remote Control Config

              include: /var/unbound/remotecontrol.conf

              (edited to include snapshot version)

              general.jpg
              general.jpg_thumb
              advanced.jpg
              advanced.jpg_thumb

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              • H
                Hugovsky
                last edited by

                More info on this:

                although the config file of unbound doesn't have it, config.xml does have the right settings:

                <custom_options>include:/var/unbound/local-blocking-data.conf</custom_options>
                <dnssec><prefetch><prefetchkey><msgcachesize>4</msgcachesize>
                <outgoing_num_tcp>0</outgoing_num_tcp>
                <incoming_num_tcp>0</incoming_num_tcp>
                <edns_buffer_size>1480</edns_buffer_size>
                <num_queries_per_thread>512</num_queries_per_thread>
                <jostle_timeout>100</jostle_timeout></prefetchkey></prefetch></dnssec>

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                • P
                  phil.davis
                  last edited by

                  The code in /etc/inc/unbound.inc simply does not implement the settings into the conf file.
                  I am looking at this. It will be easy to finish the implementation - pull request in 1 hour hopefully.

                  As the Greek philosopher Isosceles used to say, "There are 3 sides to every triangle."
                  If I helped you, then help someone else - buy someone a gift from the INF catalog http://secure.inf.org/gifts/usd/

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                  • P
                    phil.davis
                    last edited by

                    Pull request: https://github.com/pfsense/pfsense/pull/1336

                    That makes it implement all the parameters that can be specified in the "Advanced" section (the custom options box) and on the "Advanced" tab. unbound.conf has all this stuff now after pressing Apply.

                    And it took me 72 minutes between posts - there were a few little extra bits to think about, software project estimation is never an exact science, and I actually tested it also  ;)

                    As the Greek philosopher Isosceles used to say, "There are 3 sides to every triangle."
                    If I helped you, then help someone else - buy someone a gift from the INF catalog http://secure.inf.org/gifts/usd/

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                    • H
                      Hugovsky
                      last edited by

                      Thanks again for being so fast. I'll test it and report back.

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                      • H
                        Hugovsky
                        last edited by

                        It's working perfectly on the latest snapshot. Thanks again. Although, I was reading unbound docs and noticed this:

                        "FILE FORMAT
                              There  must be whitespace between keywords. Attribute keywords end with a colon ':'. An attribute is followed by its containing attributes, or a value."

                        Text parsed in the advanced field breaks the line with spaces. Do you think this is important?

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                        • E
                          Escorpiom
                          last edited by

                          Phil and Hugovsky, thanks for following up on this. I know it's community so it's awesome you helped out with this.
                          Will test it shortly.

                          Cheers.

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                          • A
                            athurdent
                            last edited by

                            @athurdent:

                            I'm using CARP virtual IPs and run Unbound on "All" interfaces.
                            If I query the CARP IP from a Linux box, I get this:

                            root@none:~# dig @192.168.xxx.254 www.heise.de
;; reply from unexpected source: 192.168.xxx.5#53, expected 192.168.xxx.254#53
;; reply from unexpected source: 192.168.xxx.5#53, expected 192.168.xxx.254#53
;; reply from unexpected source: 192.168.xxx.5#53, expected 192.168.xxx.254#53

                            Snapshot is AMD64 from today.

                            I took another look at this:

                            IP aliases can be explicitly chosen in the GUI but do not appear in unbound.conf so this does not help with the problem. Seems like a bug and should be fixed I guess.

                            If you set

                            interface-automatic: yes

                            then it replies properly when doing a dig@ the alias IP.
                            This feature is marked experimental though, I don't know the downsides.

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                            • P
                              p1erre
                              last edited by

                              Hi

                              I've another issue, all my DHCP6 static bindings are not included in /var/unbound/host_entries.conf. It shows only the IPv4 entries.

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                              • ?
                                Guest
                                last edited by

                                file a bug.

                                1 Reply Last reply Reply Quote 0
                                • P
                                  p1erre
                                  last edited by

                                  @gonzopancho:

                                  file a bug.

                                  Bug #4013

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                                  • C
                                    cmb
                                    last edited by

                                    Most things should be fixed here now. Open DNS Resolver bug tickets can be viewed here:
                                    https://redmine.pfsense.org/projects/pfsense/issues?query_id=42

                                    if you notice anything not on the list, please post here on this board, either in this thread or start your own. If you have a clearly-defined bug report, open a ticket at redmine.pfsense.org. If you're not sure the specific issue, it's best to discuss here first, where someone can help quantify the issue.

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                                    • A
                                      athurdent
                                      last edited by

                                      Does not seem to work properly with IP Aliases or CARP interfaces here. IP Aliases don't work at all, CARP virtual IPs create an interface entry with "Array" and unbound fails to start.

                                      To reproduce:
                                      -create an IP Alias
                                      -choose it as the only Network interface in Unbound
                                      Result in /var/unbound/unbound.conf

                                      # Interface IP(s) to bind to

                                      Or:
                                      -create a CARP virtual IP
                                      -choose it as the only Network interface in Unbound
                                      Result in /var/unbound/unbound.conf

                                      # Interface IP(s) to bind to
interface: 192.168.xxx.6
interface: Array

                                      I'm testing on the latest:

                                      2.2-BETA (amd64) 
built on Mon Nov 17 19:31:46 CST 2014 
FreeBSD 10.1-RELEASE
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                                      • P
                                        phil.davis
                                        last edited by

                                        cmb fixed that "Array" thing with very recent commit https://github.com/pfsense/pfsense/commit/845fd268c94e3c4de31700ce29963038e28fa017
                                        But I suspect that now you might just get no binding.
                                        You could install the latest /etc/inc/unbound.inc and then report back what remains wrong.

                                        As the Greek philosopher Isosceles used to say, "There are 3 sides to every triangle."
                                        If I helped you, then help someone else - buy someone a gift from the INF catalog http://secure.inf.org/gifts/usd/

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                                        • A
                                          athurdent
                                          last edited by

                                          Thanks Phil!
                                          CARP seems to work Ok now, also verified that it can be queried with dig@.
                                          An IP alias still behaves as described above.

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                                          • D
                                            dstroot
                                            last edited by

                                            Used to do this with dnsmasq:

                                            Insert the following into the “Advanced” text area field on the DNS Forwarder page in pfSense:  bogus-nxdomain=92.242.140.2

                                            This stopped my ISP from hijacking DNS.

                                            Doesn't seem to work with unbound.  Is there an equivalent command?  If I put it in the unbound advanced box unbound dies.

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