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= Resource = | |||
[https://www.lynda.com/Server-tutorials/Managing-DNS-Essential-Training/453346-2.html Managing DNS Essential Training] from lynda.com | [https://www.lynda.com/Server-tutorials/Managing-DNS-Essential-Training/453346-2.html Managing DNS Essential Training] from lynda.com | ||
= DNSCrypt = | |||
* https://en.wikipedia.org/wiki/DNSCrypt | |||
* [https://github.com/jedisct1/dnscrypt-proxy dnscrypt-proxy 2 - A flexible DNS proxy, with support for encrypted DNS protocols] | |||
* [https://www.linuxuprising.com/2018/10/install-and-enable-dnscrypt-proxy-2-in.html Install and Enable DNSCrypt Proxy 2 in Ubuntu 18.04 Or 18.10 / Debian Unstable Or Testing] | |||
= DNS server = | |||
* [https://opensource.com/article/17/4/introduction-domain-name-system-dns Introduction to the Domain Name System (DNS)] | |||
* [https://opensource.com/article/17/4/build-your-own-name-server Build your own DNS name server on Linux] | |||
== setup == | |||
* https://support.rackspace.com/how-to/changing-dns-settings-on-linux/ | |||
* https://helix.nih.gov/user_guides/kerb5_config.html | |||
= DNSmasq (DNS + DHCP server) = | |||
* [http://www.thekelleys.org.uk/dnsmasq/docs/dnsmasq-man.html Man page] and [http://www.thekelleys.org.uk/dnsmasq/docs/setup.html Setup] | |||
* [https://www.linux.com/learn/dnsmasq-easy-lan-name-services Dnsmasq For Easy LAN Name Services] | |||
* https://wiki.archlinux.org/index.php/dnsmasq | |||
* https://wiki.debian.org/HowTo/dnsmasq | |||
* http://www.linuxjournal.com/content/dnsmasq-pint-sized-super-d%C3%A6mon | |||
* https://blogging.dragon.org.uk/howto-setup-dnsmasq-as-dns-dhcp/ | |||
== Local forwarding server == | |||
dnsmasq program is running on my Ubuntu and Linux/Mint machines. | |||
See [https://askubuntu.com/questions/627899/nameserver-127-0-1-1-in-resolv-conf-wont-go-away nameserver 127.0.1.1 in resolv.conf won't go away!] | |||
<syntaxhighlight lang='bash'> | |||
$ ps -ef | grep -i dnsmasq | |||
$ sudo netstat -anp | grep -i dnsmasq | |||
</syntaxhighlight> | |||
= Change DNS setting = | |||
* [https://www.makeuseof.com/tag/change-dns-increase-internet-speed/ Why Changing DNS Settings Increases Your Internet Speed], [https://www.makeuseof.com/tag/best-dns-providers-security/ 5 DNS Servers Guaranteed to Improve Your Online Safety] | |||
** https://1.1.1.1/, [https://www.ithome.com.tw/news/122215 隱私優先、速度最快,公共DNS服務1.1.1.1上線了] | |||
** Google: 8.8.8.8 and 8.8.4.4 | |||
** OpenDNS: 208.67.220.220 and 208.67.222.222 | |||
** DNS Watch: 84.200.69.80 and 84.200.70.40 | |||
** OpenNIC: 206.125.173.29 and 45.32.230.225 | |||
** UncensoredDNS: 91.239.100.100 and 89.233.43.71 | |||
* [https://www.safervpn.com/support/articles/115000327609-Change-DNS-Settings-on-Windows-Mac-Android-IOS-Linux Change DNS Settings on Windows / Mac / Android / IOS / Linux] | |||
* [https://websiteforstudents.com/setup-cloudflare-dns-on-ubuntu-16-04-17-10-18-04-desktop/ Setup CloudFlare DNS On Ubuntu 16.04 / 17.10 / 18.04 Desktop] | |||
*# Open Ubuntu Network Manager (System settings > Network > Settings > Wired or Wireless or both) | |||
*# Select both IPv4 and IPv6 and turn off automatic DNS IP settings… then type the custom Cloudflare DNS IP addresses you want to use… | |||
* [https://www.makeuseof.com/tag/cloudflare-1111-dns-mobile/ You Can Now Use Cloudflare’s 1.1.1.1 DNS on Mobile] | |||
== Flush DNS cache == | |||
[https://support.opendns.com/hc/en-us/articles/227988627-How-to-clear-the-DNS-Cache- How to clear the DNS Cache?] | |||
== Test if you are using OpenDNS == | |||
https://welcome.opendns.com/ | |||
== Query DNS server == | |||
To [https://askubuntu.com/questions/152593/command-line-to-list-dns-servers-used-by-my-system list the current DNS servers used by my system], | |||
Method 1: | |||
<syntaxhighlight lang='bash'> | |||
# Ubuntu >= 15 | |||
$ nmcli dev show | grep 'IP4.DNS' | |||
$ nmcli device show <interfacename> | grep IP4.DNS | |||
# Ubuntu <= 14 | |||
$ nmcli dev list iface <interfacename> | grep IP4 | |||
</syntaxhighlight> | |||
Method 2: | |||
<syntaxhighlight lang='bash'> | |||
$ cat /etc/resolv.conf | |||
</syntaxhighlight> | |||
Another way is to use the R packages: [https://cran.r-project.org/web/packages/gdns/index.html gdns] and [https://github.com/hrbrmstr/dnsflare dnsflare]. [https://rud.is/b/2018/04/01/more-options-for-querying-dns-from-r-with-1-1-1-1/ More Options For Querying DNS From R with 1.1.1.1]. | |||
== 3 Ways to Check DNS Propagation Status == | |||
https://www.makeuseof.com/tag/check-dns-propagation-status/ |
Revision as of 08:39, 30 August 2019
Resource
Managing DNS Essential Training from lynda.com
DNSCrypt
- https://en.wikipedia.org/wiki/DNSCrypt
- dnscrypt-proxy 2 - A flexible DNS proxy, with support for encrypted DNS protocols
- Install and Enable DNSCrypt Proxy 2 in Ubuntu 18.04 Or 18.10 / Debian Unstable Or Testing
DNS server
setup
- https://support.rackspace.com/how-to/changing-dns-settings-on-linux/
- https://helix.nih.gov/user_guides/kerb5_config.html
DNSmasq (DNS + DHCP server)
- Man page and Setup
- Dnsmasq For Easy LAN Name Services
- https://wiki.archlinux.org/index.php/dnsmasq
- https://wiki.debian.org/HowTo/dnsmasq
- http://www.linuxjournal.com/content/dnsmasq-pint-sized-super-d%C3%A6mon
- https://blogging.dragon.org.uk/howto-setup-dnsmasq-as-dns-dhcp/
Local forwarding server
dnsmasq program is running on my Ubuntu and Linux/Mint machines.
See nameserver 127.0.1.1 in resolv.conf won't go away!
$ ps -ef | grep -i dnsmasq $ sudo netstat -anp | grep -i dnsmasq
Change DNS setting
- Why Changing DNS Settings Increases Your Internet Speed, 5 DNS Servers Guaranteed to Improve Your Online Safety
- https://1.1.1.1/, 隱私優先、速度最快,公共DNS服務1.1.1.1上線了
- Google: 8.8.8.8 and 8.8.4.4
- OpenDNS: 208.67.220.220 and 208.67.222.222
- DNS Watch: 84.200.69.80 and 84.200.70.40
- OpenNIC: 206.125.173.29 and 45.32.230.225
- UncensoredDNS: 91.239.100.100 and 89.233.43.71
- Change DNS Settings on Windows / Mac / Android / IOS / Linux
- Setup CloudFlare DNS On Ubuntu 16.04 / 17.10 / 18.04 Desktop
- Open Ubuntu Network Manager (System settings > Network > Settings > Wired or Wireless or both)
- Select both IPv4 and IPv6 and turn off automatic DNS IP settings… then type the custom Cloudflare DNS IP addresses you want to use…
- You Can Now Use Cloudflare’s 1.1.1.1 DNS on Mobile
Flush DNS cache
Test if you are using OpenDNS
Query DNS server
To list the current DNS servers used by my system,
Method 1:
# Ubuntu >= 15 $ nmcli dev show | grep 'IP4.DNS' $ nmcli device show <interfacename> | grep IP4.DNS # Ubuntu <= 14 $ nmcli dev list iface <interfacename> | grep IP4
Method 2:
$ cat /etc/resolv.conf
Another way is to use the R packages: gdns and dnsflare. More Options For Querying DNS From R with 1.1.1.1.