Re:Free DDNS with Cloudflare and a Cronjob
by KennyBlanken on Saturday July 27, 2024 @01:08PM
(#41087917)
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.
Re:Free DDNS with Cloudflare and a Cronjob
by vladvasiliu on Saturday July 27, 2024 @01:49PM
(#41088198)
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.
Re:Free DDNS with Cloudflare and a Cronjob
by kuschku on Saturday July 27, 2024 @02:20PM
(#41088366)
> 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.
Re:Free DDNS with Cloudflare and a Cronjob
by TheNewsIsHere on Saturday July 27, 2024 @05:55PM
(#41089605)
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.
Re:Free DDNS with Cloudflare and a Cronjob
by vladvasiliu on Sunday July 28, 2024 @08:27AM
(#41092772)
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.
Re:Free DDNS with Cloudflare and a Cronjob
by attentive on Saturday July 27, 2024 @08:17PM
(#41090339)
there is also https://github.com/joohoi/acme-dns and LE clients like lego supporting it.
Re:Free DDNS with Cloudflare and a Cronjob
by skinner927 on Saturday July 27, 2024 @02:10PM
(#41088313)
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.
Re:Free DDNS with Cloudflare and a Cronjob
by gunapologist99 on Saturday July 27, 2024 @02:58PM
(#41088543)
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.
Re:Free DDNS with Cloudflare and a Cronjob
by jsheard on Saturday July 27, 2024 @03:02PM
(#41088568)
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.
https://developers.cloudflare.com/ssl/origin-configuration/o...
Re:Free DDNS with Cloudflare and a Cronjob
by Arrowmaster on Saturday July 27, 2024 @05:00PM
(#41089304)
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.
Re:Free DDNS with Cloudflare and a Cronjob
by jsheard on Saturday July 27, 2024 @02:49PM
(#41088502)
You do need DNS fiddling if you want a wildcard cert, LE only accepts DNS challenges for those.
Re:Free DDNS with Cloudflare and a Cronjob
by PokestarFan on Saturday July 27, 2024 @08:02PM
(#41090273)
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.
Re:Free DDNS with Cloudflare and a Cronjob
by pnutjam on Saturday July 27, 2024 @09:31PM
(#41090633)
I've had excellent controls using NearlyFreeSpeech.net for DNS (minor cost) and time4vps.com (free).
Maybe very old registrars restrict DNS records..?
Re:Free DDNS with Cloudflare and a Cronjob
by janwillemb on Saturday July 27, 2024 @01:28PM
(#41088041)
Parent did not say it was challenging.
I find fiddling with LE tedious because it has to be repeated too often.
Re:Free DDNS with Cloudflare and a Cronjob
by slt2021 on Saturday July 27, 2024 @02:05PM
(#41088288)
certbot and crontab needs to be setup just once, to solve cert problem
Re:Free DDNS with Cloudflare and a Cronjob
by Dalewyn on Saturday July 27, 2024 @08:08PM
(#41090306)
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.
Whatever happened to KISS?
Re:Free DDNS with Cloudflare and a Cronjob
by darkwater on Saturday July 27, 2024 @09:40PM
(#41090663)
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
Re:Free DDNS with Cloudflare and a Cronjob
by wibblewobble125 on Monday July 29, 2024 @05:22PM
(#41103935)
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.
Re:Free DDNS with Cloudflare and a Cronjob
by jgalt212 on Saturday July 27, 2024 @04:34PM
(#41089155)
so public server via http only then?
The point of TLS is to prevent your traffic getting MITMed. This benefit disappears if you have to let someone MITM your traffic to get TLS.
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.