Acme DNS-NSupdate / RFC 2136 issue

VioletDragon

@Gertjan Just an update, the config I have the HMAC key isn't work at all, running nsupdate -k allows me to send the change but HMAC key isn't even working not sure what is wrong though

VioletDragon

@Gertjan Give up with this, It's either ACME that has the issue or it's just BIND that's the issue,

All I get now is

TSIG error with server: tsig verify failure
update failed: NOTIMP

Did a fresh install with Debian, when running nsupdate -k on the physical name server I get the same error,

dns_request_getresponse: expected a TSIG or SIG(0)

Gertjan

@VioletDragon said in Acme DNS-NSupdate / RFC 2136 issue:

HMAC key

HMAC**-SHA512**, right ?

The nsupdate tool that acme.sh uses isn't from acme.sh, but from the OS ( ? ).

The acme.sh update method called "DNS-NSupdate" uses the nsupdate binary, that should be able to talk to bind, on the other side.

@VioletDragon said in Acme DNS-NSupdate / RFC 2136 issue:

Did a fresh install with Debian, when running nsupdate -k on the physical name server I get the same error,

You mean you couldn't even run nsupdate on the debian server itself ?
The nsupdate tools that comes with the bind package can't 'talk' to bind ?

VioletDragon

@Gertjan update. The configuration for Acme and Certbot is different. Will report back when I’ve done the configuration.

VioletDragon

@Gertjan I've made progress nsupdate now works but the problem I keep getting is on pfSense side,

; TSIG error with server: tsig verify failure
update failed: NOTIMP

VioletDragon

@Gertjan It seems that acme on pfSense has a problem, tested acme.sh on a Debian VM and it works, not sure what the deal is with acme on pfSense though very strange.

Regards

Gertjan

@VioletDragon

There is something that you can test :

as it uses the same 'nsupdate' thus exactly the same parameters :

VioletDragon

@Gertjan how would that work for Acme SSL Certs ?

Gertjan

@VioletDragon

Not at all.
Services > Dynamic DNS > RFC 2136 Clients uses exacly the same DNS server zone update mechanism by using the 'nsupdate' executable.
Exactly like acme.sh, with the DNS dns_nsupdate method.
acme.sh adds TXT records.
"Services > Dynamic DNS > RFC 2136 Clients" adds A and AAAA records.
Both use the same nsupdate executable on pfSense.
Both use the same key, key name, algorithm, server IP (your domain name master DNS server.

VioletDragon

@Gertjan okay sweet I will try that later after doing some work and I will report back.

Do you think that this problem I’m facing is caused by the acme package ? As acme.sh works on Debian, same with Certbot. When running nsupdate that works too just acme package is causing me some problems.

Regards

VioletDragon

@Gertjan Update, This can be marked as solved.

I tried the method you replied above but no dice.

I ended up going with Nginx Reverse Proxy and Certbot with RFC2136 which seems to work better.

Regards

LarryFahnoe

@VioletDragon for what it's worth:

# named -v
BIND 9.18.29 (Extended Support Version) <id:>
# freebsd-version 
14.1-RELEASE-p4

That just happens to be my current nameserver, prior versions were earlier BIND versions running on CentOS. I have not had issues with the Acme package doing RFC 2136 updates on any of the BIND/OS versions that I've run. I also use HMAC-sha512 keys, but have used others without issue. Sorry, no solution to offer you, just confirmation from another user that Acme/RFC-2136/BIND works well. The only issue I did have when initially getting Acme set up was to make sure I was using a long enough DNS-sleep.

--Larry

VioletDragon

@LarryFahnoe yep. I’ve switched away from Haproxy and acme on pfsense due to needing more power under the hood and security reasons.

BIND9 with 2 Nginx Reverse Proxy and RFC2136 works well.

Regards.