DDNS on a Raspberry Pi using the Cloudflare API (Dynamic DNS)

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DDNS or Dynamic DNS is REQUIRED if you don’t have a static Public IP address for your home network. In this video, I’ll show you how to setup DDNS on a Rasberry Pi (or any Linux computer) using a Linux Bash script and Cloudflare. We’ll also use crontab to make sure it keeps your IP address up-to-date!
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0:00 ⏩ Intro
0:26 ⏩ What is Dynamic DNS??
1:42 ⏩ What do you need?
2:21 ⏩ STEP 1: Setup your Linux (bash) script
9:06 ⏩ STEP 2: Automate your script (crontab)
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#ddns #raspberrypi #pia

[@NetworkChuck]

Protect yourself!! --www.privateinternetaccess.com... --- 83% discount! That's less than 3 dollars a month, PLUS, you get 2 extra months for free! 🔎🔎Links and Guide: bit.ly/3hG55wI DDNS or Dynamic DNS is REQUIRED if you don’t have a static Public IP address for your home network. In this video, I’ll show you how to setup DDNS on a Rasberry Pi (or any Linux computer) using a Linux Bash script and Cloudflare. We’ll also use crontab to make sure it keeps your IP address up-to-date! Get a raspberry pi: geni.us/aBeqAL (affiliate) 🔥🔥Join the NetworkChuck membership: bit.ly/3riRhek SUPPORT NETWORKCHUCK --------------------------------------------------- ➡NetworkChuck membership: bit.ly/3riRhek ☕☕ COFFEE and MERCH: NetworkChuck.coffee Check out my new channel, bit.ly/nc_clips 🆘🆘NEED HELP?? Join the Discord Server: discord.gg/networkchuck STUDY WITH ME on Twitch: bit.ly/nc_twitch READY TO LEARN?? --------------------------------------------------- -Learn Python: bit.ly/3rzZjzz -Get your CCNA: bit.ly/nc-ccna FOLLOW ME EVERYWHERE --------------------------------------------------- Instagram: instagram.com/networkchuck/ Twitter: twitter.com/networkchuck Facebook: facebook.com/NetworkChuck/ Join the Discord server: bit.ly/nc-discord 0:00 ⏩ Intro 0:26 ⏩ What is Dynamic DNS?? 1:42 ⏩ What do you need? 2:21 ⏩ STEP 1: Setup your Linux (bash) script 9:06 ⏩ STEP 2: Automate your script (crontab) AFFILIATES & REFERRALS --------------------------------------------------- (GEAR I USE...STUFF I RECOMMEND) My network gear: geni.us/L6wyIUj Amazon Affiliate Store: www.amazon.com/shop/networkchuck Buy a Raspberry Pi: geni.us/aBeqAL #ddns #raspberrypi #pia

[@calkpon4168]

Let's gooooooooiii

[@superbros1690]

Network Chuck can you do projects on the raspberry pi. Like how to connect sensors to it, how to program it. There isn’t enough clear videos out there on it.

[@enxe.]

WARNING!! 5:26 Zone ID and Account ID is visible .

[@wolfiexii]

Not sure why you are hiding your DNS records - it's not like we can't just go read the records since we have the domain name. lol

[@nopchunk]

WARNING Hey bro, your global key was shown at 5:27 kzbin.info/www/bejne/qHqQiaukrrx5pK8 be quick and edit the video !!!!!!

[@mattrozenboom8497]

hey everyone I just landed my first job in IT as a datacenter tech!

[@What_iv_Don3]

Congratulations! Got into help desk technician while I build my programming portfolio.

[@OldMadScientist]

You have my sympathy and prayers.

[@AbdullahKhan-lc1by]

Congrats 👏

[@sahulhameedabdhulraseedhu9725]

Congrats broo

[@enricocolon226]

Ok

[@theloniuser]

Thanks Chuck! This is great. FYI for anyone doing this recently: K0P1 has added a couple of config items to the script: auth_method="" - it was necessary for me to set mine to "global" instead of "token" proxy=false is the default so if your cloud flare DNS record is proxied, you need to set that to "true" Otherwise, everything is just as Chuck showed in his video. :)

[@jamesgothard7881]

You just saved me thanks so much @James Cantwell I have been trying to work out why mine wasn't working

[@theloniuser]

@@jamesgothard7881 Always good to help people from pulling out their hair. Cheers!

[@darkzero11ca]

mine is not working. i did what you said and i keep getting ./cloudflare.sh: line 20: curl: command not found twice and then i get the date i hit enter and it sayes cloudflare: DDNS Updater: No public IP found.

[@Forgetpswd]

Thanks.. it's working now. very helpfull

[@MrWynand2010]

yip thanks man soon as I changed it worked.

[@jasonkkf_]

Hey Network Chuck! K0P1 Here 👋 I was wondering why the script i wrote sometime ago suddenly gain some traction. Big thanks for the feature and great tutorial!

[@psyolent.]

good work mate

[@kwiatriot6190]

Love the script and perfect for my use case. I just got it all up and running and was able to update my record but it is no longer proxied. I think maybe there is an update to the API and possibly need to add something to line 68 in the script where we set the IP via the API. Can you shed any light on this?

[@jasonkkf_]

@@kwiatriot6190 Hi! At the moment I'm out serving the military. If possible, do submit a pull request for fix when you found the solution to the issue. Sorry for the inconvenience 😓

[@kwiatriot6190]

@@jasonkkf_ no problem at all, thank you for your service!!

[@kwiatriot6190]

@@jasonkkf_ I figured it out in the end it was just me not setting the proxy variable correctly. Be safe out there

[@juanguirao]

Good job. Please note the script now requires setting variable auth_method="global" for this to work as described in the video.

[@AgentP91]

Thank you for your comment. I was breaking my head for like five minutes.

[@riccardofelicetti1696]

@@AgentP91 you actually saved the day

[@iiGerbyii]

You ended two hours of failure and internet searching.

[@jasonjackson4555]

Lol, I just discovered the auth_method issue by trial and error!

[@markdheilong]

This is great Chuck! For example, DynDNS and Cloudflare services are great if you do IoT and want access to your devices at home or at a remote site for test and development purposes. Like you've shown with this configuration, you can point your IoT system at home or at a remote site to a URL and display all kinds of device and sensor data with the use of a Dynamic DNS service.

[@kendellkumar9724]

I just found your channel and i love your teaching methods, I can actually understand what you saying and your videos are so enjoyable to look at :).

[@shashanktanwar]

This is very informative. Just a suggestion , the current cron job will keep updating the record every minute even if the ip address is not changing, modifing the shell script a little to put an if condition to check if current ip address is same as the IP a minute ago will help not to hit cloudflare API every minute .

[@davidpower3102]

The author of the script has updated it to do these checks now.

[@juanmacias5922]

LMFAO I was thinking how crazy it was that he set it to hit the API every minute...

[@mtotten2582]

This channel has me gunning for an IT job by the end of the year, thank you for the inspiration

[@nanopone]

i've been on youtube since 2009, and this is the best tutorial i have ever seen by far, and i've seen all of them. thank you so much for turning a topic i spent an hour or 2 being totally perplexed by into a thing i perfectly understand. this is the best ❤

[@joelgray3571]

Perfect and simple solution. I've seen loads of other people suggesting using ddclient instead, but THIS is a much better solution! thanks again Chuck!

[@hamkoqaasim7177]

I've been waiting for you to upload

[@DanielCCM]

This.... is..... genius! I was exactly looking for something like this! Thanks Chuck!!

[@findingcities]

I was looking for this guide!!! Love your videos 😀, helped me to learn a lot!

[@stonecrow00]

Love this lesson. If I ever forfeit my static IP from the ISP I will set up this little device for sure.

[@tonyduong6159]

AMAZING!!!! Love the Pi Cluster you got.

[@lexdevelop]

You can have timeout in between. When script executes (depends how cron is setup) and also 5 min to apply changes. Also the other side can have issue with cache and this will not work if you are behind CGNAT which is popular this days since providers are out of ipv4 and they don't support ipv6. Thanks for the great video, just wanted to add some issues that someone can run into

[@anthonyvollmer3104]

thank you so much for showing us this. i needed that so hard for my home lab

[@albertgroeneveld4731]

I found your videos and I enjoy. I just moved to another country and my goal is to work in the IT again. I have done it before but got behind with the latest developments. Really thank for this video since having a static IP is difficult to get.

[@Kanthon]

I’ve been using no-up and their DUC but this is much more elegant and I already use cloudflare. Thanks!

[@okekeebube1426]

Been looking for this video for a while now, thanks man

[@ridwa]

Update: while editing the script change auth_method to global from token.

[@Blue-bz6dm]

THANKYOU!!!

[@bufmouse13]

did this like 2 years ago I really wish I had had your video! great job again

[@AustinEschweiler]

There's a HomeAssistant integration for Cloudflare that I use to do this. Works wonders!

[@gauravwaghmare1169]

Yesterday at my organization I came across some situations where I came to know the concept of DDNS and see today I am getting your video about this.i think something will very Good happen upcoming days will be so good for me

[@kevinh21labs]

Dude! Awesome. This is an extremely valuable video for me. I use cloudflare but I've never taken time to use their dynamic DNS capability although that's exactly the reason I signed up. Now I can get this done in an hour watching your video so I'll go ahead and take advantage of that, thank you so much.

[@lpkampen]

You got to be the first person within IT I've ever heard admit that nano is your favorite editor 😂 I've felt so alone for so long!

[@Miles-Oldenburger]

nano is one of my fav's, kinda hate vim tbh... tried it/was forced to for class and hated every second of it.

[@lpkampen]

@@Miles-Oldenburger yeah I had to try vim, obviously. It looks efficient when people know how to use it, but I always comes back to nano

[@psyolent.]

so much for dyndns. thanks for sharing mate, this is a great video. for any of those who don't use a PI if you use another linux box and you get an error on line 15 ; apt install curl :)

[@Davidyoelw]

"line 21: curl: command not found" also with line 24. Now it works, thanks for that!

[@Waitwhat469]

Awesome stuff, yeah honestly helps with a big barrier to self-hosted stuff!

[@Jotammaa]

Great videos chuck! Would like to see a video implementing this scrip directly on synology instead Pi.

[@MANONTHEMOON419]

these home lab videos are dope

[@hawkgamedev]

man Im new at this but you are the best, your videos are so spot on and filled with small details like pointers and drawing on the screen thank you, loyal sub now.

[@bandanaboii3136]

This dude is giving out the best free information

[@jmaus2k]

Awesome. I suggested this topic on another video. Thanks for listening.

[@nick12321k]

Nice to see that the freenom free tlds limitation with cloudflare has been addressed here.

[@stathiskapnidis9389]

Hey Chuck, love your videos and I binge watch them all the time. Question, could you add Closed Captions? I watch vids on 2x or 3x speed so I like having them on

[@pabss3193]

Thank you for sharing this, lifesaver, running it in a VM in my case

[@ismailelayachi9337]

Chuck, You're The Man. Thank you.

[@tecnopadre]

ATTENTION: Git has updated and for your video the variable auth_method has to be change to "global" if you want it to work with the Global API Key. Cheers Chuck. thnks

[@riccardofelicetti1696]

life savior

[@jeeash]

There goes my hero!

[@andriahardtveil8626]

thanks

[@alvaxak7920]

While i watch you i became addicted to coffee ☕🤣 I wish you all the best

[@muhammadsyafiqyusni9503]

Love yourr video chuck from Malaysia🇲🇾

[@Sai-zu2hy]

I was looking for this video thankyou thank you very much

[@eliascerne6786]

Worked like a charm for me on arch linux 👍

[@repje2010]

Cool! Thanks for this video!! i do use your setup with cloudflare and Kemp Load Balancer.. workst very great!! and this is what i need too.. i have Dynamic Ip here.. and sometime it change yes! drama when that happen lol!!! Great Job..

[@Asherstitusworld]

Super video I was waiting for the video Chuck And your videos are awesome And informative I like your videos

[@evanesceful]

Love your video. I am setting it up now.

[@LostOnTheLine]

Thank you for mentioning the problem with Freenom Domains at the beginning of the video. I was pully my hair out trying to figure what was wrong. I was using the Docker version `oznu/cloudflare-ddns:latest` which hasn't been updated in 2 years, but everywhere I found, some just 3 months ago, they were using it. Never was a problem with Freemon mentioned so I thought the problem was somewhere else. It's a bummer it doesn't work, but knowing means I can stop trying to get it to

[@89suburban350]

was scared to death to do this but i did it. Broke some stuff but i fixed it also. Thanks Chuck!

[@amos660]

this channel is the shit! thank you, NetworkChuck! you're the best!

[@TimHolmes222]

I wrote a version that runs as a Cloudflare Worker. The idea is you POST an api token & the id of the hostname you want to update to the worker - Cloudflare adds a header containing your public IP address which the worker can then use to update the DNS record specified. This makes the client side incredibly simple and can be entered as a single command line directly into your Crontab. AS it can use the free tier of CF workers it costs nothing to run.

[@thomascontassot6497]

Hey Tim, awesome idea! Could you share the code of your worker please?

[@asmodeus4310]

Love your video chuck, can you make more videos on networking with python

[@user-gk9oh2fp2u]

There's a Channel called IPv0 ... It has a great network automation using python playlist . Check it out

[@asmodeus4310]

@@user-gk9oh2fp2u its not like I don't know anything about networking with python, ive been using Python for 2 years now and I just wanted to get little tips and tricks on network automation and stuff like that on a daily basis

[@asmodeus4310]

@Just Some Random Channel yeah Python is simple yet its the most powerful one out there

[@asmodeus4310]

@Just Some Random Channel python is a REAL THING man!

[@thefox1703]

Outstanding video Chuck!

[@firdoshirahaman1795]

It is 2 am here.... But this is more important then my sleep..... Love your content Chuck...

[@NetworkChuck]

Hack your sleep

[@Alain9-1]

Always golden content. Chapeau 🧢

[@arkangel7330]

I like this video. thanks Chuck!

[@docbrown5160]

Thank you! Works perfect!

[@stephanegagnon3090]

Oh yes, thanks for the tips ! The api + script was the missing part in my setup. I do sudo -i to be God mode I will do the job with VIM, I like things clean

[@kaitlynk2145]

Is it just me or does anyone else just want more and more raspberry Pi videos

[@PacificDev]

Thanks dude, that is exactly what I needed. 👊

[@marcasite6870]

"What the Chuck is going on?" 😂

[@seppneimusser5723]

You helped me a lot, thank you so much^^

[@maop2k]

awesome tutorial. Thanks man!

[@chrispeterson6941]

Hey Chuck, I just wanted to say thanks for all time that you have put into your network videos! I have learned a ton from you! That being said I don’t know anyone other than you that could possibly answer my question. I know you’re a lucky man. Lol. What I’m looking for is a device or pi that has some type of software or vpn settings that I can plug into an internet connection and report back home so I can access the devices that are plugged it’s network I can access remotely. I would need to have several out in the field. I have heard of a Cloud Bridge service that uses a something similar to a pi but I can’t seem to find and details about it. Thanks for any input.

[@rraudales]

Great video, very informative. I have learned a lot from all of your videos.

[@shubhamgupta8706]

Great explanation buddy 👍

[@GameOutlaw12]

Not sure if you meant to but, love the Loki reference! "Not sure if am a robot?"

[@GameOutlaw12]

kzbin.info/www/bejne/qZyqk5aFiM9oepI

[@islas192]

Last night I was actually installing and testing a VPN through a NoIP DDNS and a RPi, now this I gotta try too.

[@valtervalente5302]

Love your channel! One question, what app is that which allows you to use the yellow arrow to point at things so easily? Thanks!

[@cobraviky2799]

Great video’s i love it thanks a lots 🤞

[@sparkeyjones6261]

I remember running servers at home over dial-up and DSL circuits with dynamic IP's. I wrote a program that would alert me to a change in external IP. Unfortunately, I'd then have to manually change public DNS records. I guess I would have had something unique at the time if I had figured out a way to automate that process ;)

[@ngthav]

about the get one part 0:39 in US a dell poweredge cost about 150$ here in Cambodia the same spec cost about 600$

[@loganwil2]

Thank you! My brain hurts now but it worked!

[@0ffGridTechClub]

Love this guy! Sudo Coffee and nano ☕ 👏

[@riteshpradhan9328]

Thats great ...😀 please make a video about nic bonding

[@toplist3088]

i like these videos, so entertaining lol

[@mohammadasadkhan5535]

Full support to you sir

[@nicat232]

My dyn "lifetime" account expires next year, just got this set up so I won't have to worry about it, thanks for this

[@kerryh8er04]

Lifesaver chuck.

[@aravbudhiraja]

Gonna get coffee and watch the vid ☕

[@carlitosar5155]

Great tutorial as usual @NetworkChuck. I think it might be worth to mention that there's one last step in order to access the Raspberry PI from the internet, port forwarding needs to be setup on the router the PI is connected to

[@Bloomythegoat]

you make all this coding shit less scary, and it inspires me to follow along and learn

[@EverydayAdmin]

Great video sir!

[@eiskaffe0]

Thanks, nice tutorial!

[@Viveksingh-nu8re]

Thanks for the information

[@htm111]

God i like watching every video on your channel Long time fan!

[@johnh10000]

Thanks been fighting acme under pfsense, for my freenom domains, I see the light!

[@jareeq]

Great tutorial, currently you need to create specific DNS token (read /write) to make it work.

[@reversed-coffee]

I actually implemented this on my own with .NET not too long ago and this video got recommended to me. Interesting to see how we can all create useful things our own ways.

[@eddycolaiacovo6863]

Let me begin with a big hearty thanks for these videos! Your enthusiasm certainly makes these stand out way above all others!! Great Job... Your instructions are very clear to follow and I can confirm that this DDNS solution definitely works! However, I did notice one anomaly which I'm hoping you might help me understand. It seems that when testing the script execution, not only does it change the IP address back to my Public IP, it also changes the Proxy status from "Proxied" back to "DNS Only". Anyone else encounter this??

[@hU5k1]

hi if you havent seen it yet, James Cantwell posted that the config has been updated, change proxy to true in your script and proxy will stay enabled in cloudflare..

[@landolsi]

that is what I need, thank you

[@baratthuj]

U can also use tplink ddns if u have tp link router and it will automatically bind your ip to ur ddns w/o much configuration.

[@zadekeys2194]

The CloudFlare Ddns can also be run at your local network edge, using a Mikrotik script or PFSense DDNS config.

[@fabiofusco6944]

Hi, great video, thanks. I have one question: does it need batting on your router to work? Thanks

[@whiskeylinux]

nano is def the best! Great video as usual, thanks again.

[@usmanumer5099]

vim is better, nano is a mess

[@dejecj]

@NetworkChuck You should do video on a more secure version of this using cloudflared to bypass having to open up ports on your network.

[@thecrownofnoah9100]

Cool I learned something new 😁

[@babyyodar3426]

man i really want a rasberry pi 4! im a begginner to linux and only know python and a little front end deveolpment of websites, it would be nice to get better at linux! thnx for the vid, ur probably one of my favourite tech/programming youtubers, among linus, your a god!

[@jcgonnard]

It's already been said in some previous comments, but */1 is useless, you could just write *. * means "every" minute/hour/etc while */N notation means "every N" minute/hour/etc Another thing: restarting cron is also useless since using "crontab -e" automatically installs the new crontab.

[@xxicewolfxx4913]

I was literally at work today messing with my new load balancer and cloud flare managed domain name and thought “man if only there was a guide to move my dyn dns to cloud flare so I could get away from my current solution” and I got home from work and sat down and here we are 😂😂😂 almost like he’s got this stuff planned out 😉

[@user-bq3ns3kj6c]

tbh I love no-ip. It has it own DDNS programm for linux/windows/mac and you can get a subdomain aswell. Love it.