Docker Networking Tutorial, ALL Network Types explained!

Docker Networking Tutorial where I explain all network types, that you need to know! I show you how and when you should use the different network types and what you need to consider.
Based on the official Documentation: docs.docker.com/network/ #Docker #DockerNetworking #HomeLab
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Timestamps:
00:00 - Introduction
01:02 - Why should you configure Docker Networks?
01:55 - The Default Bridge Network
04:20 - The Custom Bridge Network
08:52 - Bridge Networks and Container Isolation
09:52 - The Host Network
10:49 - When to use MACVLANs or IPVLAN?
12:38 - The MACVLAN Network
17:55 - The IPVLAN Network
19:05 - Summary and what about Overlay Networks?
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[@esra_erimez]

Okay, watching this at normal speed!

[@BenReese]

😂 I listened at 2x while vaccuming, but will definitely have to review again later for the mac/IP vlan stuff.

[@tmagrit]

Totally 🤣

[@SitarHero28]

I thought I was in 2x speed lol. This dude knows his stuff.

[@ivandrofly]

I nearly reach the speed of light when speeded to 2x

[@esra_erimez]

@@ivandrofly 🤣

[@jayp9158]

Incredible video. I’m currently binge watching your channel and I’m amazed by the the quality of all your content. Keep it going man, you are great!

[@FinbarrAherne]

This is exactly what I was looking for! Thank you for the clear and concise explanations for all the different network configs, and also for stepping through each.

[@christianlempa]

Glad it was helpful!

[@D3M0320]

Your videos are absolutely fantastic!! I used some of your tutorials to stand up docker / portainer on my raspberry pi to self host some things without having a potentially power hungry and noisy desktop running 24/7. I greatly appreciate the time you take to provide these wonderful videos!

[@christianlempa]

Thank you so much! I'm glad you like the videos :)

[@Ellyll]

This video was really helpful for me to get a nice quick understanding of docker networking, thank you!

[@c-pup]

Yet another great video! I've recently been struggling setting up two piholes on the same host and your explanation of macvlan was 1000% times more concise than every other forum that I've read through over the past couple days. Keep up the great work! Liked and subscribed!

[@christianlempa]

Thank you so much! Great to hear that :)

[@mal-avcisi9783]

this guy knows his shiat. bravo !

[@jeytis72]

Great job, Christian. Very clear and informative... as always. Thanks

[@christianlempa]

Thank you! :)

[@HiltonT69]

This is a great, clear and concise explanation of these different network types. :)

[@christianlempa]

Thanks! 😀

[@thegrimreaper156]

I spent probably 3h figuring out how to assign another external IP to a Bind9 container, doing a lot of research and trying with ChatGPT. Found your video, solved in 5min !!!

[@xcaptz]

So amazing, this video saves me a lot of research 🧐. Well, thanks a lot bro!

[@datpspguy]

i'll be completely honest, i was literally thinking about this and probably mentioned it out loud near my computer and "boom" this was in my homepage waiting. I was trying to figure out if I should build a lab using containers w/ static IP's or just use Virtualbox in bridged mode so this really helped me.

[@umarchy]

Nice video cristian. The explanation was concise. Just learned about the macvlan through your video. Thanks.

[@giovannipetroselli6103]

Very clear and precise. All your videos are amazing. Thanks Cristian!

[@christianlempa]

Thank you so much 😃

[@rrr92462]

Excellent video. Great examples and explanations.

[@ErickWarden]

Earned a subscriber with this one!! This helped me fix my Docker home assistant network problem!

[@rathio7662]

Hello Christian, your videos are great, from my side perfect to understand. Please stay tuned, I learned so much.

[@christianlempa]

Thanks, I'm glad you like them:)

[@localadm]

this is very good stuff, well explained. going to check that with dockerized pi-hole or adguard. thanks a bunch!

[@christianlempa]

Thanks mate! ❤

[@jlamoree]

This was very helpful. Thank you!

[@majidalikhanquaid984]

Clear and too the point, that's what I was looking for !! Thank you so much

[@christianlempa]

Glad it helped!

[@AnythingGodamnit]

Loved this, thank you. I now feel like I have the knowledge to solve my current Docker networking problem - excited to try!

[@christianlempa]

Thanks for watching :)

[@alex.username]

What a concise, well structured and informative video!

[@christianlempa]

thank you so much!

[@FabianoChagas]

Awesome as always! Thanks for sharing

[@xseman]

simple explanation even with examples, great stuff!

[@christianlempa]

Glad you liked it!

[@dakzer55]

Thank you for this refresher on docker networking. Has fixed my issue with trying to get HADR for Sql Server instances running in docker

[@christianlempa]

You're welcome! Glad it helped you :)

[@josel82]

Really good video. Very well explained and well produced. You got yourself a new suscriber 👍🏽

[@christianlempa]

Thanks and welcome

[@yoddy0]

Thanks for the insight on the various network drivers on docker. I blindly used a macvlan from a tutorial for pihole but wanted to understand how it works.

[@John._.T]

Really informative. Just stumbled on to your channel. Fast paced and great information. Just managed to keep up as I'm completely new to docker. Subscribed to your channel. Thanks 🙂

[@christianlempa]

Thank you! Hope you find some useful stuff here :)

[@jakedeng2288]

very useful video, I solved one of my docker issues right after watching this!

[@christianlempa]

Thank you! :) Glad you could solve some issues with it!

[@ivandrofly]

4:21 - DNS limitation by using the DEFAULT bridge network 10:51 - mentioned about PI-hole (adguard like) issue

[@Error_404-F.cks_Not_Found]

Best docker video i've watched. Super informative.

[@Error_404-F.cks_Not_Found]

I will say it would have been nice to see all these in compose also though.

[@christianlempa]

Wow, thanks!

[@axreds]

even if the video is 1 year old it made my day!!! Thanks Chris very clear and well done

[@christianlempa]

Thank you :) I’m glad it helps you!

[@PeterBatah]

I created a docker instance in VMWare ESXi and proceeded to follow your instructions. I could not get past the part where I assigned the newly created macvlan to an nginx container for example. The fix was to configure "Promiscuous Mode set to Accept" in my VMWare network settings. In case anyone should run into the same issue. Thank you for sharing Christian. Much appreciated as always. All the best in 2024.

[@palandiagmail]

Amazing explanation thanks

[@HideBuz]

Finally somebody who explains that stuff clearly and without jargon! Thank you so much for your contributation!

[@pierrer3109]

Thanks ! Great explanations. Have a nice day

[@christianlempa]

Thx you too ;)

[@oppailover3087]

Thank You man! I was just randomly watching this video and figured out how to solve port 53 issue for pi-hole in docker

[@christianlempa]

Thank you! I’m glad it helped you :)

[@GlenMillard]

Now I have watched your video - it was very informative. Thanks much for this. Much appreciated! 😎😎

[@christianlempa]

Thank you ;)

[@AlejandroRodriguez-wt2mk]

wonderful work

[@mr.wayfarer6082]

Much appreciated, sir. Home Assistant and Plex containers conflict listening the same 1900 port while running on bridge connection fe

[@chriscrafty]

This was very helpful - thank you!

[@christianlempa]

Glad it was helpful!

"Who needs swarm?'" everyone who wants a simple cluster running one command "docker swarm init"

[@m3kbeatz]

Indeed.

[@paulkalus41]

Hi Cristian, this is a another great video. The Macvlan part is something I've been searching and searching for, always coming to a dead end. The way you have explained and demonstrated it is spot on and has solved my issues, and I've actually learned something! :)

[@yaroslavozerov1121]

Bro! Thanks for the video, but the biggest thanks for picture on your t-shirt! I had such poster on my wall in 90th! That's awsome))

[@marcoroose9973]

Thanks for this video and especially for the netshoot hint. This was something I missed a lot - until now ;-)

[@christianlempa]

You're welcome! :)

[@GlenMillard]

I just started watching and I hope this lands nicely! You sound exactly like 'Klaus' on 'American Dad' I love the show, by the way. Now I'm going to watch your video!

[@christianlempa]

lol

[@sbkpilot1]

Great video! One thing I noticed is that in WSL2 with Docker Desktop the behavior is rather different - when you create a new bridge network there is no interface created. I wonder how it works in this case.

[@okoeroo]

Excellent explanation

[@christianlempa]

Thanks ❤

[@jameshunt5184]

Awesome video, really liking your content 🔥 I was wondering if you could help clear up something. In portainer I'm able to change the network of a container to 'container' mode that allows me to run containers through another containers network. In my case I run containers through a VPN container. However how is this done in a Docker compose file?

[@zhitoooo]

short, useful , great, awesome thanks alot

[@ricoshen18]

great job.

[@cloud2050]

Great video! You cleared up my confusion on docker network. BTW! What are you using to show the AD block statistics in your browser startpage?

[@fbifido2]

1. Can you modify the default bridge (name, ip, subnet, type) ? 2. When you create a custom network, how do you tell it what type to create, ip-range, subnet, etc... 3. Type shown: Host, Bridge, Null?, macvlan, ipvlan. Are there more ? 4. Can you change the default bridge that docker use for new containers? 5. Can any of these network do dhcp ip reservation using mac-address, or support static ip-address? 6. Does any of the network support ipv6, default seems to be ipv4?

[@derBerg]

VIelen Dank! Ich kann nicht verstehen, wie Menschen hier downvoten.. Very interesting! As a guy having a new job in IT as a career changer i need to close alot of knowledge gaps of stuff which seems to be common sense in IT. I like your style!

[@christianlempa]

Vielen Dank! :)

[@nicoladellino8124]

Very nice video, THX.

[@christianlempa]

Thanks! :)

[@Eratzer]

Thx macvlan is what i needed for some containers

[@christianlempa]

👍

[@davidsomething4867]

Just getting started with docker and loving it. One thing I am struggling with is getting IPvLAN L2 working with fixed IP addresses through compose when the ipvlan already exists on the host, jus seem to get one error after another when specifying the existing network. I've got multiple USB interfaces on a debian instance loaded on a PC and am using IPvLAN as alternative to macvlan and having to setup promiscuous mode although I have macvlan 802.1q working on another host so I have no issue with the concept and have a good understanding of networking as a whole. I've setup an ipvlan with fixed addresses for a ipam container with a separate container for the database and this works no problem but I had to setup the containers the old fashioned way.

[@lakshminarasimmanv]

it would be helpful if you can make a dedicated video on overlay networks and try to install Traefik and Portainer in swarm mode.

[@awd4ever]

Thank you

[@spop1974]

Great stuff! Thanks!

[@christianlempa]

Glad you liked it!

[@liquidintegrity]

Wow. Just wow. Thank you!

[@christianlempa]

You're very welcome!

[@mal-avcisi9783]

this guy knows his shiat. bravo !

[@jmtfreelancer4473]

Hello, Your video is what i needed . But I woul dlik eto do the same on MAC OSX . what is the solution to have two static IP on my HOST OSX?

[@dpicollege]

I have two docker machine on same host one on overlay network of swarm and another one is on bridge network so which rules for my iptables or route i should write that my both container can communicate each other?

[@NetanelZa]

That search-result seemed to be the answer to all my problems; I'm running PhotonOS ( docker environment for ) on my ESXi and just cannot figure that out. I cannot ping the host, nor does it seem like it got to talk to my router ( according to the devices list ). How should I debug this? I tried to enable promiscuous mode for the vmswitch but it is still not working.

[@victoryosikwemhe2280]

Nice. Just a quick question, if we can ping a device (in a macvlan network) from another device in a spearate network, why is the scope local?

[@RamiKattan]

Nice tutorial, I knew a lot about networks in docker but learnt a couple of things, including the netshoot container, very useful. Something that was not mentioned: macvlan containers can't reach bridge containers with their internal IP address (172.16.x.x), they can only reach the host ip and port, is this correct? I created a traefik container and bound it to macvlan to make it get a distinct IP address, but it was unable to reach any container until I added a second network for traefik on the bridge network.

[@nicoladellino8124]

Nice video, TNX

[@HewaSaleem]

Moin Moin, Best explanation ever! keep up.

[@christianlempa]

Moin moin! Danke :)

[@donya_ayandeh]

You're wonderful 👍

[@elmarulian]

Hello! awesome videos as always, I'm struggling to achieve two docker hosts on a physical server that has two ethernet ports, on of the hosts should expose a service in one of the ethernet ports and the other host should connect and receive data from services in the other port, this is an overlay network use case for what it looks like, or is there another way?

[@elmarulian]

Or is the macvlan the key to attach some containers to a physical network and other containers to another physical network?

[@psicodelico6]

Greetings from Argentina

[@PaulDickson7]

Great video, started watching network chucks got confused and came to your video. Makes a lot more sense. Couldn't find your cheat sheet in Github though :(

[@christianlempa]

Thanks, mate! Sorry, the cheat-sheet is still a work in progress. github.com/xcad2k/cheat-sheets

[@PaulDickson7]

@@christianlempa All good thank you for putting the time to explain everything in this video. It was clear, concise and easy to follow. I literally spent my weekend going round in circles with Docker networking only to give up and delete everything and start again.

[@sidharthanp5163]

Great video.

[@christianlempa]

Thanks!

[@anikrahman9871]

Your video is fantastic

[@christianlempa]

Thank you so much 😀

[@mdawas1986]

Hello Christian, Many thanks for the video where is the cheat sheet located, I visited your github and I cant find it, seems you have changed the location since your video hope you can share link thanks

[@TheLaelkrol]

How can I make my container use a specific interface on a host system i.e. I have one cable connection and two wlan interfaces and I've got 3 containers. I'd like each to use a dedicated interface. Which type of network will be best and how would I go about it?

[@wieliewiel2630]

Great video!

[@christianlempa]

Thanks! :)

[@banalidadesculturapop4988]

Hey I I love your content and im learning a lot , can you please advise , How should the network from traefik be configured if i want it to also ping another internal server ?

[@christianlempa]

It depends where the server is running, if it's on the same host you should be able to connect via bridge network, otherwise you might checkout host mode.

[@cjntrade4717]

Awesome brother

[@christianlempa]

Thx

[@stevefxp]

I am a tech professional of over 35 years and I am learning Docker on my own. I understand networks well but in beginning to think about how I want networks deployed. I would prefer having a subnet that is container only. If I did this would I still use bridge or macvlan driver?

[@coltennabers634]

So how does mac vlan solve the port issue? Can I have multiple containers in macvlan network using same port?

[@annahri]

You can just drop grep and use `ip a ` instead

[@rhb.digital]

good stuff.. thnx

[@christianlempa]

Thanks!

[@jslegers1973]

Thank you Christian for this great explanation. I do have a question is it possible to have a container in two networks? I'm trying to create a compose file with PiHole and Unbound. The Pihole has a macvlan for my network and also a bridge to communicate to unbound. But every time I want to compose it the bridge network on the PiHole gives an error Cannot start service pihole: No available addresses on this pool. IS it even possible to create a container in two different networks?

[@christianlempa]

Thank you! :) It's possible to add a container to more networks, but I'm not sure how that works with a macvlan.

[@39zack]

setting up an reverse proxy is easy enough, but how do you setup "client-containers" behind the proxy that can only access the outside though the proxy? I guess if you set up the other containers on the same network as the proxy or an vlan network, they have direct access to the outside network If this was physical machines or VMs, I would just have put 2NICs on the proxy machine but no clue if this is possible on dockers or if that is how you do it

[@christofferahlback]

Great video! Thanks! I’m on a mac and have had a gard time getting ipvlan to work over the wifi. As for now, I just need some containers for development tools (web dev) and would really like to get their own ip-numbers rather than running them as localhost… seems like it’s not as easy on Mac OS as in Linux at the moment. Any ideas? Cheers!

[@christianlempa]

hmm I've not tried it out unfortunately, only used it on linux

[@brandoneadie8566]

I'm trying to figure out how to use my 5 external public ip addresses, and have my router see lets say 5 containers from docker. Which I would give each one its own external public ip address. Would you have any idea how to achieve this?

[@coolglass6672]

Great videos dude! can i ask why Owasp says we should set ICC to false? I am guessing they just mean they want us to use custom networks?

[@mikekane9734]

Interesting! What type of network should I use for my home server setup and run containers behind wireguard client for my torrenting?

[@christianlempa]

Depends on if the wireguard is in docker as well or not.

[@interestedperson1865]

thanks helpful

[@christianlempa]

Thanks!

[@fbifido2]

- @3:41 what is the number in-front of the docker0: network? "6: docker0: " - the "###: vethxxx@if(###-1):" is virtual ethernet interface, can the route command work with them?

[@RockTheCage55]

Hi Christian this has been excellent. When you created the macvlan why did you specify it on a different subnet '/32'?

[@christianlempa]

thank you! :) subnet /32 basically means "1" address

[@syetrack3374]

I have multiple public static ip on host interface but I can't figure out how to use each of them on separate containers for docker. When I run a container its assessable by every public ip I have

[@sposada00]

Im having an issue with the macvlan. I can ping the containers from my home computer but i cant get a response from the gateway. I am running virtual box for my machine and i have promiscuous mode on. I have been troubleshooting but cant seem to get it to have connectivity to outside the network

[@sonalkumarjha5200]

@admin can you please upload a solution video for issue "use of closed network connection" while pushing large to docker hub.

[@YeOldeTraveller]

What is the visibility from the host to the containers on that host in each of these scenarios? I have a system where the containers get their own IP and are visible to other devices in the network, but are not visible to the host OS. I would like to be able to see the services provided by the containers on the host from the host OS itself.

[@francocastilloAR]

I also need to know how to do that.

[@songokussj4cz]

Wow, didn't k ow about macvlan. So it's possible to run both Traefik (for docker apps) and Nginx (for non-docker apps to reverse proxy) at once so that both listen to port 80?

[@christianlempa]

Absolutely!

[@MahmudDomili]

i just follow the tutorial here using macvlan but i cant ping the gateway or the internet from netshoot container using macvlan is it okay to running the macvlan inside hyper-v ? Bare Metal ( Windows Server ) > Hyper-V ( Ubuntu Server ) > Ubuntu Server ( Docker )

[@JelmerBoumaJeebeevee]

Hi, first I love this and the other videos. Just a question. Is it possible to do this in docker-compose? And how do I do that? I tryed it but it did not work for me. Keep up the good work.

[@christianlempa]

Sure, Docker-Compose offers the same features. Btw, when you create a docker-compose stack it will automateically create a new bridge network for your Docker compose, but you could also assign existing networks to your containers by defining it in the file.

[@fahadnaif2170]

Can you please explain the CNI and CSI, differences like for example CNI’s Flannel, calico,, etc. Thanks.

[@christianlempa]

That's unfortunately a topic where I have NO experience at all :D Maybe in the future.