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
sudo snap start --enable knot-resolver-gael.kresd
sudo snap logs -n 30 knot-resolver-gael.kresd
Deny domain resolution (refreshed every 4 hrs)
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
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
sudo snap start --enable knot-resolver-gael.deny-policy
sudo snap logs -n 30 knot-resolver-gael.deny-policy
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))
sudo snap restart knot-resolver-gael.kresd
sudo journalctl --follow --lines 30 -u snap.knot-resolver-gael.kresd
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Snap can be installed from the command line on openSUSE Leap 15.x and Tumbleweed.
You need first add the snappy repository from the terminal. Choose the appropriate command depending on your installed openSUSE flavor.
Tumbleweed:
sudo zypper addrepo --refresh https://download.opensuse.org/repositories/system:/snappy/openSUSE_Tumbleweed snappy
Leap 15.x:
sudo zypper addrepo --refresh https://download.opensuse.org/repositories/system:/snappy/openSUSE_Leap_15.6 snappy
If needed, Swap out openSUSE_Leap_15. for, openSUSE_Leap_16.0 if you’re using a different version of openSUSE.
With the repository added, import its GPG key:
sudo zypper --gpg-auto-import-keys refresh
Finally, upgrade the package cache to include the new snappy repository:
sudo zypper dup --from snappy
Snap can now be installed with the following:
sudo zypper install snapd
You then need to either reboot, logout/login or source /etc/profile to have /snap/bin added to PATH.
Additionally, enable and start both the snapd and the snapd.apparmor services with the following commands:
sudo systemctl enable --now snapd
sudo systemctl enable --now snapd.apparmor
To install knot-resolver-gael, simply use the following command:
sudo snap install knot-resolver-gael
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