[resolved][ovh] dig connection timed out on external udp enquiry to bind (tcp work)

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#1 Tue, 10/31/2017 - 04:46
MrGreen

[resolved][ovh] dig connection timed out on external udp enquiry to bind (tcp work)

Hello

When i do : dig @dns1.greendns.net www.coinmontagne.com i've a : connection timed out; no servers could be reached

On local server, it's ok.... the dns1.greendns.net is the same server as www.coinmontagne.com

If i do nmap -sU -p 53 dns1.greendns.net i've got :

nmap -sU -p 53 dns1.greendns.net

Starting Nmap 6.00 ( http://nmap.org ) at 2017-10-30 09:50 CET
Nmap scan report for dns1.greendns.net (87.98.140.68)
Host is up (0.00048s latency).
PORT   STATE SERVICE
53/udp open  domain

Nmap done: 1 IP address (1 host up) scanned in 0.28 seconds

and now if i do dig @dns1.greendns.net www.coinmontagne.com it's ok.... i've a good answer....

but tomorrow, there is the same problem...

An idea please ?

Thu, 11/02/2017 - 01:32
MrGreen

up please

Mon, 11/06/2017 - 13:38
adamjedgar

Someone is going to have to explain this to me, if your coinmontagne website is working what is the problem exactly?

AJECreative is the home of $5 webhosting, $15/month VPS servers (1cpu,1gb RAM, 25GB storage)
Centos7, Debian9, or Ubuntu18LTS
Available Control Panels = Centos-Webpanel, Cyberpanel, or Virtualmin

https://ajecreative.com.au

Mon, 05/07/2018 - 07:00
MrGreen

After a few month, i've resolved the problem.

In ovh, and on the ip failover, there was activated a "firewall gaming" for gamer, and block udp connection like 53/udp for bind.

That was complicated to find that, because if i initialise a connection on tcp/53 the udp/53 was worked....

Just disable this firewall and all is ok.

Regards

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