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Description

This is NOT an original piece of work, just a snap of Knot Resolver

Knot Resolver is a caching full resolver implementation written in C and LuaJIT, both a resolver library and a daemon. The core architecture is tiny and efficient, and provides a foundation and a state-machine like API for extensions. There are three modules built-in - iterator, validator, cache, and a few more are loaded by default. Most of the rich features are written in Lua(JIT) and C. Batteries are included, but optional.

The LuaJIT modules, support DNS privacy and DNSSEC, and persistent cache with low memory footprint make it a great personal DNS resolver or a research tool to tap into DNS data. TL;DR it's the OpenResty of DNS.

First use

• Read the doc at https://knot-resolver.readthedocs.io/en/stable/ on how to get started.

• Configure the resolver sudo vi /var/snap/knot-resolver-gael/current/kresd.conf

• Restart Knot Resolver sudo snap restart knot-resolver-gael.kresd

• Read the logs sudo journalctl --follow --lines 30 -u snap.knot-resolver-gael.kresd

Deny domain resolution (refreshed every 4 hrs)

• Enter hosts lists URLs (optional)

sudo vi /var/snap/knot-resolver-gael/common/policies/deny_hosts.url

Sample deny host files URLs

https://pgl.yoyo.org/adservers/serverlist.php?hostformat=hosts;showintro=0 https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts https://raw.githubusercontent.com/anudeepND/blacklist/master/adservers.txt http://sysctl.org/cameleon/hosts

• Enter domains lists URLs (optional)

sudo vi /var/snap/knot-resolver-gael/common/policies/deny_domains.url

Sample deny domains URLs

https://gitlab.com/quidsup/notrack-blocklists/raw/master/notrack-blocklist.txt https://s3.amazonaws.com/lists.disconnect.me/simple_ad.txt https://s3.amazonaws.com/lists.disconnect.me/simple_tracking.txt https://v.firebog.net/hosts/AdguardDNS.txt https://v.firebog.net/hosts/Easyprivacy.txt

• Restart deny policy sudo snap restart knot-resolver-gael.deny-policy

• Read the logs sudo journalctl --follow --lines 30 -u snap.knot-resolver-gael.deny-policy

• Add the deny policy list to kresd.conf

sudo vi /var/snap/knot-resolver-gael/current/kresd.conf

policy.add(policy.rpz(policy.DENY, '/var/snap/knot-resolver-gael/common/policies/deny_policy.rpz',true))

• Restart Knot Resolver sudo snap restart knot-resolver-gael.kresd

• Read the logs sudo journalctl --follow --lines 30 -u snap.knot-resolver-gael.kresd

2022-09-26

• Updated to v5.5.3
• Fix CVE-2022-40188

2022-06-14

• Updated to v5.5.1

2022-03-20

• Updated to v5.5.0

2022-01-11

• Updated to v5.4.4

2021-12-13

• Updated to v5.4.3

2021-10-14

• Updated to v5.4.2

2021-08-22

• Updated to v5.4.1
• Dependencies cleanup

2021-08-16

• Added DNStap module. See https://snapcraft.io/dnstap-gael

2021-07-30

• Updated to v5.4.0

2021-07-08

• New build to resolve CVE-2021-22918/USN-5007-1

2021-05-11

• Updated to v5.3.2

2021-04-11

• Updated to v5.3.1
• Added deny list with Response Policy Zone (RPZ) refreshed every 4 hrs

2021-03-28

• First release of knot-resolver-gael v5.3.0 on arm64 architecture
• Caveat: I don't have the hardware to test it properly

2021-03-14

• First release of knot-resolver-gael v5.3.0 on amd64