If you too are tired of relying on outdated software from paid services like NoIP and DynDNS, and are in need for a reliable way to manage your home server with your own domain name, try this simple script with a free Cloudflare account. It just gets the job done...
This is a pretty nice option for Cloudflare domains. An alternative I use is DomainConnect, which provides free DDNS but the main backer of it is GoDaddy so I had to leave the domain I use it with registered there.
I built the exact same thing 5 years ago and I'm using it daily since then. I never have any problems with it. You don't need a config file for it, just a couple of CLI options and you are good to go. You can install it with pip, docker or downloading a binary:
I guess this is something people have to make? I wrote one 6 years ago in Golang and rewrote it in Rust last year. I have stopped using it, but I had them running for 6 years without issues.
Is there any Cloudflare service one can use to determine the IP instead? That way there’s not an extra company in addition to Cloudflare itself that you need to continue existing.
The (above) shared url leveraging the cloudflare.com domain name seems to show ip v6 address, while I've noticed that the following defaults to showing ip v4 address: https://1.1.1.1/cdn-cgi/trace
Pick your poison as you wish - either is great! :-)
Also the reason that the 1.1.1.1 one shows only IPv4 address is because 1.1.1.1 is itself an IPv4 address. So any connection to it will have to be using IPv4.
Yes, but getting it in a response from an external server means I don’t have to be specific about which interface to get the IPv6 address of and so on.
Which is neatly abstracted away so you don’t have to think about it unless you want to. And therefore reaching out to an external server and having it say where the request came from is the path of least resistance for a script that can work across different hosts with minimal machine specific configuration.
Listen, if you want to check the IPv6 address from the interface list go ahead I’m not trying to stop you.
But because I anyway need to reach a third party to know my own IPv4 address then yeah when that third party can also tell me IPv6 address I’m gonna do it that way.
That requires running it on the router/device which gets the public IP address. By using the service you can update your DNS IP address on a system that is behind the router.
I have a router connected to the internet, it gets the public IP address.
The router is connected to the internal network in my home and has the IP address of 192.168.1.1.
Behind the router is my computer which has a non-public IP address, for example 192.168.1.2. My computer is the one I want to run the program to update the DNS entry. My computer does not know what the public IP address is by looking at its interfaces.
As I've said before. The server behind the router does not have a public IPv6 address. It is NATed to the Internet. Getting the internal IPv6 address is useless for this case.
I do not like to have the servers/computers that are on the internal home network directly connected to the Internet.
I feel like it's worth mentioning icanhazip.com [0] as well, since it's now run by Cloudflare [1]. Until recently switching to a custom CF worker, that's been by go-to for ages.
Does Cloudflare have a history of sunsetting products they've bought? Acquisitions by Google, Apple, Meta, etc. are yellow flags that the product may cease to exist soon. I wonder if Cloudflare has a better track record in that regard.
Ugh, same. You’re right. Nothing is safe at Google or even a safe bet with Google. Look at third-party cookies. I can’t believe there isn’t outrage in the streets over the fact that they beat that drum for four straight years and now they suddenly have a change of heart.
At some point their rationale has to become irrelevant. It’s simply unprofessional behavior.
This narrative might be shifting in realtime with the LLM race and privacy wars. How do I advertise in Gemini? Do Google users want me to? I’ve worked in and around digital advertising and marketing for the better part of a decade. We look at Google with all the admiration one would have for a pet crocodile.
the correct answer I think is cloudflare? I'm a little wary of internet homogenization like this but I haven't the time to worry about this sort of thing for my spare one-off domains
NameCheap for the ones they support. I don’t like how tightly wound Cloudflare domains are with the account. I’m nervous about putting too many eggs in one basket with them. I sometimes need to switch hosting a domain in a cloudflare account with another cloudflare account. They don’t let you do that without moving a domain to a third party registrar first. I just shortened that process.
Now we wait until you get burned by Cloudflare. Have we already forgotten the "We've discovered a technical problem with your domain: pay us $150,000 or fuck off"
Not that I'm aware of and this is likely now just a cloudflare worker that returns the IP they already have. I would imagine maintenance is basically zero as its feature complete.
You could host your own VPS for a few dollars specifically for the purpose of responding back to you with your own residential IP. But that wouldn’t be free.
In my experience, you have to be careful if relying on one IP source because if they give you the wrong one, then your servers could be MITM’d. I say this because I have a script which does this exact thing, and found a couple of these ‘what’s my ip’ services giving me someone else’s IP. Because of that, I randomly select a few IP addresses and ensure they are identical before I trust any of them.
there's a way to tell caddy server to host its own access.log
So you have some junk VPS or whatever that just has caddy hosting its log with an easy to remember domain (they're cheap enough), and you go like "curl http://easydomain.com/idreallylikemyip" and then once more:
curl http://easydomain.com/N | grep "idreallylikemyip"
the code that used to work is on my github, i uploaded it there a week or two ago. Someone who needs a way to find out the public ipv4 of any device not just their own can probably figure out how to get it to work again!
Instead of using DDNS, I have been using Cloudflare tunnels to expose my home services to the internet. The setup is much simpler and it seems like it's more secure too
You specify a port and point it to a subdomain and it just immediately works, no maintenance necessary. The daemon only needs to be installed once with a simple terminal command
– TLS termination mandatorily happens at Cloudflare (i.e. your traffic is mitm'ed). That's because this free product is meant as a gateway drug (aka a loss leader) to Cloudflare's WAF/Anti-DDOS products (which require TLS termination to happen on their side for technical reasons).
– Other TCP protocols (including SSH) require every client to run the software too. So if you were thinking about bypassing the TLS termination restriction by creating a TCP tunnel instead of an HTTP(S) tunnel you can't.
FWIW, I have been using it with Plex (just two users, me and my parents) and haven't gotten banned. The ToS are kind of unclear on whether this is allowed if I have to be honest.
Video streaming in general is one of their red lines, you're not supposed to shove any kind of video through their CDN unless the origin is another Cloudflare product (e.g. CF Stream or R2).
It rarely is clear cut with Cloudflare, many of their policies are ambiguous so you never really know if you're stepping over the line until you get an email from sales asking you to either cut it out, start paying, or pay more. Others experience might give you a rough idea of what they'll tolerate, but since none of it is in writing they can change their minds on a whim.
Agreed with sibling, but TBH if you're just using it for personal streaming, it's not likely to trip any bandwidth alerts on a free account, and CF will probably be happy that you're using it for personal stuff (because you'll probably take it with you to your day job too)
> – TLS termination mandatorily happens at Cloudflare (i.e. your traffic is mitm'ed). That's because this free product is meant as a gateway drug (aka a loss leader) to Cloudflare's WAF/Anti-DDOS products (which require TLS termination to happen on their side for technical reasons).
But on the flip side, this allows you to have a nice certificate on your outside connection without having to fiddle with letsencrypt or whathaveyou.
If someone finds LetsEncrypt challenging, they don't have sufficient network andsystem administrator skills to be running a private, public-facing web server. They should be running tailscale.
HTTPS when used in the ubiquitous manner it is now always strikes me as unnecessary complexity and tedium, and reasonings like yours addressing them with even more complexity and tedium.
It happened that the last S changed from "stupid" to "secure".
If I use HTTPS I can safely enough connect to my home services through an open cafe Wifi, for example
I’ve been using caddy for a year which does everything for you. Basically nginx/haproxy but with https built-in via LE, no fiddling about with cert files and brittle LE scripts, also supports subdomains equally easily.
Well, one of the "challenges" is the one in a different comment: most registrars don't allow fine-grained control over who can update what DNS records.
Can it be done? Sure. But do I want to spend money on this for my home lab if I can work around it? Not a chance.
I'm kinda sensitive to the "MITM as a service" argument, but for my use case, it's not a problem.
You don’t need automated DNS fiddling for lets encrypt. Certbot can either hook into Apache or NGINX, or run its own standalone server for verification.
Aside from sibling comment, you also need automated DNS fiddling if you want CloudFlare Strict TLS support, because if LE can only connect to CF proxy, it will never issue via HTTPS.
You don't necessarily need to do that, Cloudflare can generate you a long-lived certificate to install on your origin server which isn't publicly trusted but is trusted by their proxies, so it works with Strict TLS. YMMV with other CDNs though, you might need to fall back to using LE with a DNS challenge in some cases.
Not true. I have a CF rule that matches . well-known/acme-challenge and sets SSL off. The main setting is on full strict but the rule disables the auto redirect to https and the strict checking so an acme client behind a CF tunnel can bootstrap a cert with the HTTP-01 method.
Certbot has a Cloudflare extension so all you need to do is provide a credentials file and it will automatically apply everything. I have a monthly cronjob running that runs the cloudflare certbot in Docker.
> Well, one of the "challenges" is the one in a different comment: most registrars don't allow fine-grained control over who can update what DNS records.
Afaik, every major registrar allows you to add an NS record for the _acme-challenge subdomain, allowing you to put the _acme-challenge subdomain on a custom, self-hosted DNS server.
That in turn allows you to make the permissions as specific as you'd like. Personally I just run powerdns in docker for this.
Using CNAME delegation for the ACME challenge domain and directing that to a Route 53 zone is my preferred approach. Then (as long as you have CloudWatch configured) you get inherent auditing and very flexible privilege management.
That wouldn't work for this use case though would it? AWS doesn't allow downloading the certificate (I could be wrong)? Typically certificates can only be used with other AWS services. E.g. you can't download the certificate and serve it from a home server.
You're not wrong, but the idea here is not to use AWS' certificate manager but their DNS service on which you would only handle the acme-challenge subdomain. This would allow you to limit who can update which subdomain. The LE cert is obtained normally.
Just seeing this. Yeah, you're technically right. But I never sit at my headless boxes. I SSH to them and then from there could SSH Jump if I really needed to use SSH out of those boxes.
Also I wouldn't use Cloudflare Tunnels so this is a moot point.
At which point is the MITM happening? What I mean is: browser → Cloudflare server → cloudflared on my server → web service. Is TLS only from browser to Cloudflare server, or is it browser to cloudflared?
>Is TLS only from browser to Cloudflare server, or is it browser to cloudflared?
It's encrypted between the browser and Cloudflare, but you can also create a cert and encrypt between Cloudflare and your origin server. (but that isn't mandatory)
You need to have a domain that you manage DNS for in Cloudflare. Look up what a "registrar" is, a common one people go through would be Namecheap. Get a domain, and then look up how to set up a DNS zone in Cloudflare from an external registrar. If you plan on working in tech, this is one of those things you'll absolutely need experience with doing. Good luck!
Though it occurs to me their may just be a language barrier and you may have a domain that you manage your DNS in Cloudflare already. If that's the case, a subdomain is just an A record under your domain's DNS settings for anything other than the root domain. So, if your domain is "example.com", the A record could be like "service" with an IP of "192.168.1.10", and your subdomain would then be served on "service.example.com" for example. Subdomains are free, if you have a domain in the first place.
If you're asking if you would already need the subdomain configured in your DNS settings in Cloudflare, then yes, most likely. Though there are tools that create those for you, like external-dns in kubernetes.
I asked Perplexity:
Using the same provider for both domain registration and DNS hosting can present several risks. Here are the primary risks and ways to mitigate or prevent them:
## Risks
1. *Single Point of Failure*:
- If the provider experiences an outage, both your domain registration and DNS services could be affected, leading to downtime for your website and email services[2].
2. *Security Vulnerabilities*:
- Using a single provider increases the risk of DNS hijacking, DNS cache poisoning, and other DNS attacks if the provider's security is compromised[3][4].
3. *Limited DNS Features*:
- Some domain registrars that offer DNS services may not provide advanced DNS features like DNSSEC, Anycast, or DDoS protection, which are crucial for security and performance[2][5].
4. *Vendor Lock-in*:
- It may be more challenging to transfer your domain or DNS services to another provider if both are managed by the same company, potentially leading to higher costs or service disruptions[1].
## Mitigation Strategies
1. *Use DNSSEC*:
- Implement DNSSEC (Domain Name System Security Extensions) to protect against DNS hijacking and cache poisoning. DNSSEC adds a layer of security by enabling DNS responses to be verified using digital signatures[3][4].
2. *Redundancy and Backup*:
- Use secondary DNS providers to ensure redundancy. This way, if your primary DNS provider experiences an outage, the secondary provider can handle DNS queries, minimizing downtime[2][5].
3. *Choose a Reputable Provider*:
- Select a provider that specializes in DNS services and offers robust security features, including DDoS mitigation, Anycast networks, and DNSSEC. This ensures that you are using the latest DNS technologies and security measures[2][7].
4. *Regular Security Audits*:
- Conduct regular security audits of your DNS configurations and keep your DNS software updated to protect against vulnerabilities and exploits[7].
5. *Enable Two-Factor Authentication (2FA)*:
- Use 2FA for accessing your domain and DNS management interfaces to prevent unauthorized access. Additionally, consider IP whitelisting to restrict access to trusted IP addresses only[3][5].
6. *Client Lock*:
- Utilize client lock features provided by your registrar to prevent unauthorized changes to your DNS records without approval from a specific individual within your organization[3][5].
By implementing these strategies, you can significantly reduce the risks associated with using the same provider for domain registration and DNS hosting, ensuring better security, reliability, and performance for your online services.
Using the same provider for both domain registration and DNS hosting can introduce several risks. Here are some of the main risks and ways to mitigate them:
1. Single point of failure: If the provider experiences an outage or security breach, both your domain registration and DNS hosting could be affected simultaneously. This can cause your website or services to become unavailable.
Mitigation: Consider using separate providers for domain registration and DNS hosting to reduce the impact of a single provider's issues.
2. Provider lock-in: Some providers make it difficult to transfer your domain or DNS management to another provider, leaving you dependent on their services.
Mitigation: Choose a provider that allows easy domain transfers and supports standard DNS management protocols like EPP (Extensible Provisioning Protocol). Familiarize yourself with the transfer process before committing to a provider.
3. Security vulnerabilities: If the provider's security measures are inadequate, attackers may be able to gain unauthorized access to your domain and DNS settings, potentially leading to domain hijacking or DNS tampering.
Mitigation: Select a reputable provider with strong security practices, such as two-factor authentication, IP restrictions, and regular security audits. Enable additional security features like DNSSEC (Domain Name System Security Extensions) to protect against DNS spoofing.
4. Lack of redundancy: Relying on a single provider for both domain registration and DNS hosting means you don't have a backup if that provider experiences issues.
Mitigation: Consider using secondary DNS services from a different provider to ensure redundancy and failover capabilities.
5. Limited control and flexibility: Some providers may offer limited control over your DNS settings or have restrictions on the types of records you can configure.
Mitigation: Opt for a provider that offers a comprehensive and user-friendly DNS management interface with support for various record types and advanced features like GeoDNS or failover.
To further mitigate risks, consider the following best practices:
1. Keep your domain registration and DNS hosting accounts secure with strong, unique passwords and enable two-factor authentication.
2. Regularly monitor your domain and DNS settings for any unauthorized changes.
3. Keep your contact information up to date with your domain registrar to ensure you receive important notifications and can respond promptly to any issues.
4. Familiarize yourself with the domain transfer process and keep backups of your DNS configuration to ease migration to another provider if needed.
5. Choose reputable providers with a track record of reliability, security, and customer support.
By being aware of these risks and implementing appropriate mitigation measures, you can minimize the potential impact of using the same provider for domain registration and DNS hosting.
Those are valid. I would personally be worried about getting kicked off Cloudflare and the procedure for transferring domains being messy and time consuming.
How can you claim it's simpler in the light of the revelations in noname120's comment?
Dynamic DNS is literally one little service you run to "phone home" to the dynamic DNS provider. This service is bundled in consumer routers; just find it in the WebUI, put in the credentials and turn it on.
You know what could be simple: a periodic job that figures out your public IP address, and if it has changed, generates a hosts file entry for it, and e-mails it to you. If all you care about is just you having access to home while you are roaming about, that could do it. It also occurs to me that it makes a good backup strategy in case something goes wrong with DDNS while you are traveling.
Consumer firewalls, the largest names in open source firewalls, and at least one webserver/reverse proxy that I know of.
There also dozens of existing DDNS daemons out there already with far more developer, testing, and user eyeballs on them.
The firewall solution is preferred because the firewall knows when the external interface changes IP addresses, so there's no system or network overhead from having an agent repeatedly testing if the IP has changed, nor any downtime between when the IP changes and when the next check happens.
Assuming you can add a custom URL, you can still do this through the firewall instead of an event to check the public IP. I like using my own, custom domain for this use case. I've also used and put a couple of domains up on freedns.afriad.org for others to be able to use.
That said, the only hole in my firewall/router is a port for Wireguard.
I use tailscale's DNS feature and run my own DNS server. That way I can have a subset of my services available on the internet via CF tunnels and when I connect to tailscale I get all of them directly, and I can use the same domain names
It's better to do a script on your router, which knows exactly when the ISP's DHCP changes. Mikrotik has an event to capture this, and *sense has built in scripts for various DDNS providers.
I used ddclient with Cloudflare for years with no issues.
Recently upgraded my home router and the manufacturer operates a free dynamic dns service enabled with a toggle button. I have a cname record in my domain’s dns records pointing to the dynamic dns entry. I actually don’t even need that anymore. All the services I run at home are only for immediate family so only available remotely via a Wireguard vpn connection. I migrated that to the router also because it can do 900Mbs of Wireguard traffic and has a great vpn server management implementation. By default the client configs it generates points to the dynamic dns name. No real need for the cname but I have it out of habit.
I didn’t need all the features or complexity of a Mikrotik router so I went simpler. I have a GL.iNet MT-6000. Underneath it runs openwrt and you can access the openwrt luci web interface or ssh to it if you want to do anything more complex than their web ui allows. So far besides enabling sftp so certbot can deploy a ssl cert to replace the default self-signed cert I haven’t needed to.
It also runs AdGuard Home so that is another thing I have been able to remove from my home server.
Wow! May I know the router model that does 900+mbps of Wireguard? The dedicated GLinet box I got for tailscale does only about 60-90mbps. Apple TV 4K does a paltry 20-40...
The GL.iNet MT-6000 Flint2. I have a site to site Wireguard VPN with my brother which I use for offsite backups. It saturates my 500Mbs internet connection when performing backups. I have seen YouTube videos of others successfully testing the 900Mbs throughput claim. I stopped using tailscale myself about a year ago so can’t comment on the performance with it. It uses a user space Wireguard implementation instead of the kernel one so that may impact performance.
Is that being limited from your connection's uplink speed? My uplink is only 100mbit (I can sometimes get as much as 120mbps though). When I connect remotely through wireguard, I have to issue reaching that. I can set to my home connection at whatever the location I'm at has allowed.
I've got my additional services on a Ryzen R9 5900HX mini pc. My router is an N300 mini-pc with 4 network ports. I had trouble configuring wireguard on the router, so it's in a VM on the mini-pc and runs as well as can be expected.
I'm calling out the elephant in the room - you’re putting way too much faith in these IP lookup services without questioning their obvious ability to screw you over with giving the wrong IP. Is no-one in here able to see this is terrible security??
The script was not using Cloudlfare to grab the IP, it was using iptools website. Plus, it doesn’t even need to be malicious - it can simply hive you the wrong IP. I know this because I ran a script querying 40 different sites which provided the IP address, and I found at least 4 of them giving incorrect IP addresses over the course of 24 hours. This is why you shouldn’t trust any single source, but compare multiple different sources and THEN update cloudflare with the IP. You see?
You can achieve the same on virtually any DNS hosting with RGAP[1]. The trick is to delegate name of your interest to server which runs RGAP DNS server and let it respond to queries for such domain name. Bonus: you can have more than one address running RGAP-agent and exporting its address to DNS.
Same. Our wireline ISPs used to issue new public IPs every 1-12 weeks. Now it's more like 6 mos to never.
I'm thinking this is due to pressure from IPv4 exhaustion and the rise of easy DDNS. There's also an overall shift - from using tech to protect profit-generating services to using lobbyists.
To share an anecdote from the before times: I was once trying to setup a VPN endpoint on a client's DSL connection. Every time I initiated the connection, their public IP would change. The lease renewal was fairly quick and I could trigger 5 changes a minute.
For me it changes reliably on every reconnect, but there are no forced reconnects, and I now have my router not restarting basically ever since I am on openwrt and am done with setting everything up.
Very cool! For anyone interested in a bash script instead of installing a Python runtime, I made this tool some time ago for the same purpose: https://github.com/ddries/d2c.sh
If only this didn't require an API token with write access to the entire domain. Please Cloudflare, let us grant access to specific (or regexp!) records
Last I checked AWS has the same limitation. One workaround is creating a separate sub-zone and giving access only to that to whatever you need. But for a "cheap homelab" solution, that's gonna cost you a bit more per month.
I’ve been favoring Tailscale lately for establishing magical access to machines at home. Because it permits two-factor authentication based on Google and other systems, it seems more secure than just having things exposed via public IP. That being said I definitely appreciate that being really on the internet has its uses!
I wanted to do this a long time ago but I wouldn't trust my router with a Cloudflare API key. Paranoid or is there a way to limit that key to one domain or, even better, one DNS entry?
As the other commenter says, you can get pretty granular with the permissions. If you want to go even further, you can build a Cloudflare Worker that performs exactly the request that you want to do, and nothing else. Then you can configure your router to hit that instead of the API directly.
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[ 2.9 ms ] story [ 224 ms ] thread>
> sudo systemctl restart cron
Hello author, there's no need to restart cron, crontab -e applies changes automatically on exit. And the daemon is called "cron", not "cronjobs".
ddclient already works with Cloudflare: https://developers.cloudflare.com/dns/manage-dns-records/how...
https://github.com/kissgyorgy/cloudflare-dyndns
https://github.com/AndreasBackx/update-dns
Is there any Cloudflare service one can use to determine the IP instead? That way there’s not an extra company in addition to Cloudflare itself that you need to continue existing.
Pick your poison as you wish - either is great! :-)
Listen, if you want to check the IPv6 address from the interface list go ahead I’m not trying to stop you.
But because I anyway need to reach a third party to know my own IPv4 address then yeah when that third party can also tell me IPv6 address I’m gonna do it that way.
Every device gets a public ipv6 (usually).
The router is connected to the internal network in my home and has the IP address of 192.168.1.1.
Behind the router is my computer which has a non-public IP address, for example 192.168.1.2. My computer is the one I want to run the program to update the DNS entry. My computer does not know what the public IP address is by looking at its interfaces.
https://superuser.com/questions/468727/how-to-get-the-ipv6-i...
I do not like to have the servers/computers that are on the internal home network directly connected to the Internet.
[0]: https://www.icanhazip.com/ [1]: https://major.io/p/a-new-future-for-icanhazip/
I’m in the middle of transferring all my domains from Squarespace thanks to Googles sale of that business to that incredibly lousy vendor.
At some point their rationale has to become irrelevant. It’s simply unprofessional behavior.
Google Ads
In my experience, you have to be careful if relying on one IP source because if they give you the wrong one, then your servers could be MITM’d. I say this because I have a script which does this exact thing, and found a couple of these ‘what’s my ip’ services giving me someone else’s IP. Because of that, I randomly select a few IP addresses and ensure they are identical before I trust any of them.
Example: https://www.fullspectrum.dev/a-less-suspect-way-to-get-exter...
So you have some junk VPS or whatever that just has caddy hosting its log with an easy to remember domain (they're cheap enough), and you go like "curl http://easydomain.com/idreallylikemyip" and then once more: curl http://easydomain.com/N | grep "idreallylikemyip"
the code that used to work is on my github, i uploaded it there a week or two ago. Someone who needs a way to find out the public ipv4 of any device not just their own can probably figure out how to get it to work again!
Similar things are also possible with nginx and Apache.
And they offer a similar service on their DNS resolver over IPv6.
This page lists the IPv6 addresses to use when connecting to their resolver over IPv6
https://developers.cloudflare.com/1.1.1.1/ip-addresses/
and with that I just tried
And it works, returning the IPv6 address that the request came from :)You specify a port and point it to a subdomain and it just immediately works, no maintenance necessary. The daemon only needs to be installed once with a simple terminal command
– TLS termination mandatorily happens at Cloudflare (i.e. your traffic is mitm'ed). That's because this free product is meant as a gateway drug (aka a loss leader) to Cloudflare's WAF/Anti-DDOS products (which require TLS termination to happen on their side for technical reasons).
– Other TCP protocols (including SSH) require every client to run the software too. So if you were thinking about bypassing the TLS termination restriction by creating a TCP tunnel instead of an HTTP(S) tunnel you can't.
– Max 100 MB uploads for HTTP(S).
– No media servers allowed.
Otherwise it's a really good service!
FWIW, I have been using it with Plex (just two users, me and my parents) and haven't gotten banned. The ToS are kind of unclear on whether this is allowed if I have to be honest.
https://old.reddit.com/r/PleX/comments/152wfdh/can_i_use_a_c...
Cloudflare threatened to terminate our $15k enterprise license last week for serving 76 TB of API JSON files last month (90% cache hits).
I moved half of the traffic to a new domain with a Business license to see what they say...
https://news.ycombinator.com/item?id=40481808#40482405
But on the flip side, this allows you to have a nice certificate on your outside connection without having to fiddle with letsencrypt or whathaveyou.
I find fiddling with LE tedious because it has to be repeated too often.
Whatever happened to KISS?
Can it be done? Sure. But do I want to spend money on this for my home lab if I can work around it? Not a chance.
I'm kinda sensitive to the "MITM as a service" argument, but for my use case, it's not a problem.
https://developers.cloudflare.com/ssl/origin-configuration/o...
Afaik, every major registrar allows you to add an NS record for the _acme-challenge subdomain, allowing you to put the _acme-challenge subdomain on a custom, self-hosted DNS server.
That in turn allows you to make the permissions as specific as you'd like. Personally I just run powerdns in docker for this.
https://developers.cloudflare.com/cloudflare-one/connections...
That said, personally I don't really have any devices that can use SSH but not a browser.
Read the docs, you can do it either way.
No headless boxes?
Also I wouldn't use Cloudflare Tunnels so this is a moot point.
It's encrypted between the browser and Cloudflare, but you can also create a cert and encrypt between Cloudflare and your origin server. (but that isn't mandatory)
Though it occurs to me their may just be a language barrier and you may have a domain that you manage your DNS in Cloudflare already. If that's the case, a subdomain is just an A record under your domain's DNS settings for anything other than the root domain. So, if your domain is "example.com", the A record could be like "service" with an IP of "192.168.1.10", and your subdomain would then be served on "service.example.com" for example. Subdomains are free, if you have a domain in the first place.
If you're asking if you would already need the subdomain configured in your DNS settings in Cloudflare, then yes, most likely. Though there are tools that create those for you, like external-dns in kubernetes.
Let Cloudflare do DNS, let your registrar be a registrar.
## Risks
1. *Single Point of Failure*: - If the provider experiences an outage, both your domain registration and DNS services could be affected, leading to downtime for your website and email services[2].
2. *Security Vulnerabilities*: - Using a single provider increases the risk of DNS hijacking, DNS cache poisoning, and other DNS attacks if the provider's security is compromised[3][4].
3. *Limited DNS Features*: - Some domain registrars that offer DNS services may not provide advanced DNS features like DNSSEC, Anycast, or DDoS protection, which are crucial for security and performance[2][5].
4. *Vendor Lock-in*: - It may be more challenging to transfer your domain or DNS services to another provider if both are managed by the same company, potentially leading to higher costs or service disruptions[1].
## Mitigation Strategies
1. *Use DNSSEC*: - Implement DNSSEC (Domain Name System Security Extensions) to protect against DNS hijacking and cache poisoning. DNSSEC adds a layer of security by enabling DNS responses to be verified using digital signatures[3][4].
2. *Redundancy and Backup*: - Use secondary DNS providers to ensure redundancy. This way, if your primary DNS provider experiences an outage, the secondary provider can handle DNS queries, minimizing downtime[2][5].
3. *Choose a Reputable Provider*: - Select a provider that specializes in DNS services and offers robust security features, including DDoS mitigation, Anycast networks, and DNSSEC. This ensures that you are using the latest DNS technologies and security measures[2][7].
4. *Regular Security Audits*: - Conduct regular security audits of your DNS configurations and keep your DNS software updated to protect against vulnerabilities and exploits[7].
5. *Enable Two-Factor Authentication (2FA)*: - Use 2FA for accessing your domain and DNS management interfaces to prevent unauthorized access. Additionally, consider IP whitelisting to restrict access to trusted IP addresses only[3][5].
6. *Client Lock*: - Utilize client lock features provided by your registrar to prevent unauthorized changes to your DNS records without approval from a specific individual within your organization[3][5].
By implementing these strategies, you can significantly reduce the risks associated with using the same provider for domain registration and DNS hosting, ensuring better security, reliability, and performance for your online services.
Sources [1] Everything About Website Domain Registration : Best Practices And ... https://monsterhost.com/everything-about-website-domain-regi... [2] Should you keep your DNS management and domain registration ... https://blog.dnsimple.com/2015/03/benefits-and-drawbacks-of-... [3] What is DNS Hijacking and Mitigation Methods - GlobalDots https://www.globaldots.com/resources/blog/what-is-dns-hijack... [4] DNS Attacks: Tutorial & Prevention Best Practices - Catchpoint https://www.catchpoint.com/dns-monitoring/dns-attack [5] How to Prevent DNS Attacks: DNS Security Best Practices https://www.esecurityplanet.com/networks/how-to-prevent-dns-... [6] Unraveling the roles o...
Using the same provider for both domain registration and DNS hosting can introduce several risks. Here are some of the main risks and ways to mitigate them:
1. Single point of failure: If the provider experiences an outage or security breach, both your domain registration and DNS hosting could be affected simultaneously. This can cause your website or services to become unavailable. Mitigation: Consider using separate providers for domain registration and DNS hosting to reduce the impact of a single provider's issues.
2. Provider lock-in: Some providers make it difficult to transfer your domain or DNS management to another provider, leaving you dependent on their services. Mitigation: Choose a provider that allows easy domain transfers and supports standard DNS management protocols like EPP (Extensible Provisioning Protocol). Familiarize yourself with the transfer process before committing to a provider.
3. Security vulnerabilities: If the provider's security measures are inadequate, attackers may be able to gain unauthorized access to your domain and DNS settings, potentially leading to domain hijacking or DNS tampering. Mitigation: Select a reputable provider with strong security practices, such as two-factor authentication, IP restrictions, and regular security audits. Enable additional security features like DNSSEC (Domain Name System Security Extensions) to protect against DNS spoofing.
4. Lack of redundancy: Relying on a single provider for both domain registration and DNS hosting means you don't have a backup if that provider experiences issues. Mitigation: Consider using secondary DNS services from a different provider to ensure redundancy and failover capabilities.
5. Limited control and flexibility: Some providers may offer limited control over your DNS settings or have restrictions on the types of records you can configure. Mitigation: Opt for a provider that offers a comprehensive and user-friendly DNS management interface with support for various record types and advanced features like GeoDNS or failover.
To further mitigate risks, consider the following best practices:
1. Keep your domain registration and DNS hosting accounts secure with strong, unique passwords and enable two-factor authentication.
2. Regularly monitor your domain and DNS settings for any unauthorized changes.
3. Keep your contact information up to date with your domain registrar to ensure you receive important notifications and can respond promptly to any issues.
4. Familiarize yourself with the domain transfer process and keep backups of your DNS configuration to ease migration to another provider if needed.
5. Choose reputable providers with a track record of reliability, security, and customer support.
By being aware of these risks and implementing appropriate mitigation measures, you can minimize the potential impact of using the same provider for domain registration and DNS hosting.
(Although CF seems perfectly happy hosting really shady sites that host primarily illegal content)
When I deleted the cloudflare DNS for one of my domains I also completely lost access to the cloudflare registrar for that domain.
Even though they should not be coupled at all and the UI makes it very much appear like they are decoupled.
I imagine this is a bug that's been fixed by now but it was still super panic inducing in the moment.
So ya keep those DNS and domains separate if possible.
Dynamic DNS is literally one little service you run to "phone home" to the dynamic DNS provider. This service is bundled in consumer routers; just find it in the WebUI, put in the credentials and turn it on.
You know what could be simple: a periodic job that figures out your public IP address, and if it has changed, generates a hosts file entry for it, and e-mails it to you. If all you care about is just you having access to home while you are roaming about, that could do it. It also occurs to me that it makes a good backup strategy in case something goes wrong with DDNS while you are traveling.
There also dozens of existing DDNS daemons out there already with far more developer, testing, and user eyeballs on them.
The firewall solution is preferred because the firewall knows when the external interface changes IP addresses, so there's no system or network overhead from having an agent repeatedly testing if the IP has changed, nor any downtime between when the IP changes and when the next check happens.
That said, the only hole in my firewall/router is a port for Wireguard.
I setup some Cloudflare DNS records to the tail scale 100.x IPs to make them easy to remember.
Will this work if the "home services" include authoritative DNS.
(last time I checked was last year though)
Perhaps DoH proxy is possible.
Recently upgraded my home router and the manufacturer operates a free dynamic dns service enabled with a toggle button. I have a cname record in my domain’s dns records pointing to the dynamic dns entry. I actually don’t even need that anymore. All the services I run at home are only for immediate family so only available remotely via a Wireguard vpn connection. I migrated that to the router also because it can do 900Mbs of Wireguard traffic and has a great vpn server management implementation. By default the client configs it generates points to the dynamic dns name. No real need for the cname but I have it out of habit.
It also runs AdGuard Home so that is another thing I have been able to remove from my home server.
I've got my additional services on a Ryzen R9 5900HX mini pc. My router is an N300 mini-pc with 4 network ports. I had trouble configuring wireguard on the router, so it's in a VM on the mini-pc and runs as well as can be expected.
Also, if running a home server you’d want that 5min wait time brought down to something like 1 minute.
https://github.com/zebradil/cloudflare-dynamic-dns
[1]: https://github.com/SenseUnit/rgap
It’s also trivial if you run your own nsd/bind instance.
Same. Our wireline ISPs used to issue new public IPs every 1-12 weeks. Now it's more like 6 mos to never.
I'm thinking this is due to pressure from IPv4 exhaustion and the rise of easy DDNS. There's also an overall shift - from using tech to protect profit-generating services to using lobbyists.
To share an anecdote from the before times: I was once trying to setup a VPN endpoint on a client's DSL connection. Every time I initiated the connection, their public IP would change. The lease renewal was fairly quick and I could trigger 5 changes a minute.
What kind of reconnect?
[1] - https://openwrt.org/packages/pkgdata/ddns-scripts-cloudflare
https://github.com/willswire/unifi-ddns
Which got me into a 4-year exploration of FreeBSD! I'm still a bit sad I had to replace it with Proxmox on Debian to get what I wanted.