Turris forwarding not working over CZ.NIC

dns

#1

Hi, I have tried to forward DNS over TLS by using CZ.NIC but it could not resolved any DNS query, but when I switch into Cloudflare everything works. Is CZ.NIC DNS over TLS not yet ready?

Edit: I have restarted: /etc/init.d/resolver service manually, still same.


#2

Ah, yes, I can still reproduce this problem. I’m sorry, I’ve been busy with more urgent things. CZ thread.

For now I suggest you use some other option.


#3

Its not a problem at all, I was just wondering, you know :grin:… As CZ.NIC server should be more close to me, I’m from Czech (ahoj), so it should be quicker I guess (in the future)?


#4

Ahoj :slight_smile: I get DNS replies from 1.1.1.1 to Prague under one millisecond. This connection failure to the cz.nic servers only happens from some networks.


#5

Well, thats weird… Some networks are blocking it? Just curiouse…
My ISP is Poda, btw.


#6

It is weird. I can reproduce it from my “personal” ISP (StarNet) over IPv4 – TCP SYN packets go without any reply, but with IPv6 all works and TCPv4 on different ports than 853 also works :man_shrugging: