Unbound

nlnetlabs.nl/projects/unbound
Unbound Icon

Validating, recursive, caching DNS resolve with support for DNS-over-TLS. Designed to be fast, lean, and secure Unbound incorporates modern features based on open standards. It's fully open source, and recently audited. (For an in-depth tutorial, see this article by DNSWatch.)

Open Source

Unbound Source Code

Author

NLnetLabs

Description

Unbound is a validating, recursive, and caching DNS resolver.

#dns#dns-privacy#dnssec#recursor#resolver

Homepage

https://nlnetlabs.nl/unbound

License

BSD-3-Clause

Created

13 Jun 17

Last Updated

04 Oct 24

Latest version

release-1.21.1

Primary Language

C

Size

101,568 KB

Stars

3,063

Forks

349

Watchers

3,063

Language Usage

Language Usage

Star History

Star History

Recent Commits

  • Yorgos Thessalonikefs (03 Oct 24)

    - The fix for CVE-2024-8508 was part of 1.21.1, a security point release on 1.21.0. The code repository continues with this fix and the version number 1.22.0.

  • Yorgos Thessalonikefs (03 Oct 24)

    Merge branch 'release-1.21.1'

  • Yorgos Thessalonikefs (03 Oct 24)

    - Fix CVE-2024-8508, unbounded name compression could lead to denial of service.

  • Yorgos Thessalonikefs (03 Oct 24)

    - Set version to 1.21.1

  • W.C.A. Wijngaards (30 Sept 24)

    - Fix unbound dnstap socket test program analyzer warnings about unused variable assignments and variable initialization.

  • W.C.A. Wijngaards (30 Sept 24)

    - Fix negative cache NSEC3 parameter compares for zero length NSEC3 salt.

  • W.C.A. Wijngaards (25 Sept 24)

    - Fix #1144: [FR] log timestamps in ISO8601 format with timezone. This adds the option `log-time-iso: yes` that logs in ISO8601 format.

  • Yorgos Thessalonikefs (24 Sept 24)

    Changelog entry for #1143: - Merge #1143: Fix cache update when serve expired is used. Expired records are favored over resolution and validation failures when serve-expired is used.

  • Yorgos Thessalonikefs (24 Sept 24)

    Fix cache update when serve expired is used (#1143) - Fix cache update when serve expired is used in order to not evict still usable expired records. Modules are forbidden to update the cache if their answer is DNSSEC unchecked or bogus and a valid (expired) entry already exists. Bogus replies from the validator are also discarded in favor of existing (expired) valid replies. - serve-expired-ttl-reset should try to keep expired records in the cache in case they are reset.

  • Yorgos Thessalonikefs (24 Sept 24)

    - More clear text for prefetch and minimal-responses in the unbound.conf man page.

  • Yorgos Thessalonikefs (24 Sept 24)

    - Attempt to further fix doh_downstream_buffer_size.tdir flakiness.

  • Yorgos Thessalonikefs (23 Sept 24)

    - Fix doxygen warnings by commenting out CLANG_ASSISTED_PARSING, CLANG_ADD_INC_PATHS, CLANG_OPTIONS and CLANG_DATABASE_PATH; they were already disabled.

  • W.C.A. Wijngaards (23 Sept 24)

    - Fix dns64 with prefetch that the prefetch is stored in cache.

  • W.C.A. Wijngaards (17 Sept 24)

    - Add redis-command-timeout: 20 and redis-connect-timeout: 200, that can set the timeout separately for commands and the connection set up to the redis server. If they are not specified, the redis-timeout value is used.

  • W.C.A. Wijngaards (16 Sept 24)

    Changelog comment for #1140. - Merge #1140: Fix spelling mistake in comments.

  • Tochus (16 Sept 24)

    Fix spelling mistake in comments (#1140) I noticed a spelling mistake in the comments. The term “chain of trust” was incorrectly written as “chainoftrust”. This change corrects the spelling to “chain of trust” which is the correct term used in English.

  • Yorgos Thessalonikefs (11 Sept 24)

    - Fix and add comments in testdata/val_negcache_ttl.rpl.

  • W.C.A. Wijngaards (10 Sept 24)

    - Add unit test for ttl limit for aggressive nsec.

  • W.C.A. Wijngaards (10 Sept 24)

    - Fix to limit NSEC and NSEC3 TTL when aggressive nsec is enabled (RFC9077).

  • Yorgos Thessalonikefs (06 Sept 24)

    - Fix comment to not trigger doxygen unknown command.

  • Yorgos Thessalonikefs (06 Sept 24)

    - Fix alloc-size and calloc-transposed-args compiler warnings.

  • W.C.A. Wijngaards (05 Sept 24)

    - Fix config file read for dnstap-sample-rate.

  • W.C.A. Wijngaards (02 Sept 24)

    Changelog note for #1135 - Merge #1135: Add new IANA trust anchor.

  • Keelan Cannoo (02 Sept 24)

    Add new IANA trust anchor (#1135) Signed-off-by: Keelan Cannoo <[email protected]> Co-authored-by: Keelan10 <[email protected]>

  • W.C.A. Wijngaards (30 Aug 24)

    - Fix for #1132, comment about adjusted copy of reference check.

  • W.C.A. Wijngaards (30 Aug 24)

    Changelog note for #1132 and fix for #1132. - Merge #1132: b.root renumbering. - Fix for #1132, adjusted unit test for change in the test file.

  • Loganaden Velvindron (30 Aug 24)

    b.root renumbering (#1132) https://b.root-servers.org/news/2023/05/16/new-addresses.html Worked together with Jaykishan Muktawoa <[email protected]>

  • W.C.A. Wijngaards (29 Aug 24)

    - Fix to print port number in logs for auth zone transfer activities.

  • W.C.A. Wijngaards (29 Aug 24)

    - Unit test for auth zone transfer TLS, and TLS failure.

  • W.C.A. Wijngaards (28 Aug 24)

    - Fix that stub-zone and forward-zone clauses do not exhaust memory for long content.

Unbound Website

Website

NLnet Labs - Unbound - About

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS and DNS-over-HTTPS which allows clients to encrypt their communication. In addition, it supports various modern standards that limit …

Redirects

Redirects to https://nlnetlabs.nl/projects/unbound/about/

Security Checks

All 66 security checks passed

Server Details

  • IP Address 185.49.140.10
  • Hostname open.nlnetlabs.nl
  • Location Amsterdam, Noord-Holland, Netherlands (Kingdom of the), EU
  • ISP Stichting NLnet Labs
  • ASN AS8587

Associated Countries

  • NL
  • US
  • DE

Saftey Score

Website marked as safe

100%

Blacklist Check

nlnetlabs.nl was found on 0 blacklists

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Website Preview

Unbound Docker

Container Info

pihole-unbound

A Linux network-level advertisement and Internet tracker blocking application which acts as a DNS sinkhole. This version has Ubound software installed on it so you don't need to rely on external DNS providers. When the installation is complete, navigate to your.ip.goes.here:1010/admin. Follow the article <a href='https://medium.com/@niktrix/getting-rid-of-systemd-resolved-consuming-port-53-605f0234f32f'>here</a>

#Other#Tools

DockerHub Metrics

  • Pull Count 2,223,601
  • Stars 63
  • Date Created 31 Dec 20
  • Last Updated 5 months ago

View on DockerHub

cbcrowe/pihole-unbound

Run Command

docker run -d \ 
  -p 53:53/tcp \
  -p 53:53/udp \
  -p 1010:80/tcp \
  -p 4443:443/tcp \
  -e ServerIP=${ServerIP} \
  -e TZ=${TZ} \
  -e DNSSEC=${DNSSEC} \
  -e DNS1=${DNS1} \
  -e DNS2=${DNS2} \
  -v /portainer/Files/AppData/Config/PiHole-Unbound:/etc/pihole \
  -v /portainer/Files/AppData/Config/PiHole-Unbound/DNS:/etc/dnsmasq.d \
  --restart=unless-stopped \
  cbcrowe/pihole-unbound:latest

Compose File

version: 3.8
services:
  pi-hole-unbound:
    image: cbcrowe/pihole-unbound:latest
    ports:
      - 53:53:tcp
      - 53:53:udp
      - 1010:80:tcp
      - 4443:443:tcp
    environment:
      ServerIP: 192.168.0.X
      TZ: Europe\London
      DNSSEC: 
      DNS1: 127.0.0.1#5335
      DNS2: 127.0.0.1#5335
    volumes:
      - /portainer/Files/AppData/Config/PiHole-Unbound:/etc/pihole
      - /portainer/Files/AppData/Config/PiHole-Unbound/DNS:/etc/dnsmasq.d
    restart: unless-stopped

Environment Variables

  • Var Name Default
  • ServerIP 192.168.0.X
  • TZ Europe\London
  • DNSSEC null
  • DNS1 127.0.0.1#5335
  • DNS2 127.0.0.1#5335

Port List

  • 53:53/tcp
  • 53:53/udp
  • 1010:80/tcp
  • 4443:443/tcp

Volume Mounting

  • /portainer/Files/AppData/Config/PiHole-Unbound /etc/pihole
  • /portainer/Files/AppData/Config/PiHole-Unbound/DNS /etc/dnsmasq.d

Permissions

  • read ✅ Yes
  • write ✅ Yes
  • admin ✅ Yes

Unbound Reviews

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About the Data: Unbound

API

You can access Unbound's data programmatically via our API. Simply make a GET request to:

https://api.awesome-privacy.xyz/networking/dns-clients/unbound

The REST API is free, no-auth and CORS-enabled. To learn more, view the Swagger Docs or read the API Usage Guide.

About the Data

Beyond the user-submitted YAML you see above, we also augment each listing with additional data dynamically fetched from several sources. To learn more about where the rest of data included in this page comes from, and how it is computed, see the About the Data section of our About page.

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