Questions tagged [dns]
For questions pertaining to Domain Name System (DNS), a service that provides the resolution of host names to IP addresses. Use this tag when you are troubleshooting DNS issues, configuring a DNS resolver or server, or are trying to understand DNS's involvement in your situation.
1,563 questions
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1answer
27views
BIND9 on Debian refusing to bind to a localhost address
This is on a Debian 12.10 lxc machine. I'm trying to get bind9/named to listen on a second localhost IP: /etc/bind/named.conf.options: options { ...
- 2,432
1vote
1answer
49views
Caching-only bind9, connecting exclusively by tcp outward
On various, mostly security and privacy related reasons, I would be more happy if my caching-only bind9 would only use TCP to make outward connections. Of course, it should be able to accept and ...
- 10.3k
1vote
1answer
46views
BIND9 refusing DNS queries
I cannot for the life of me work out why BIND9 is refusing queries. I have followed so many tutorials and watched so many configuration setup videos, both using Webmin and in the CLI, following them ...
- 159
1vote
0answers
37views
unable to access internet from exported vm machine either on nat or bridged
Problem: I’m unable to access the internet in my Red Hat 9.5 Enterprise VM, despite the VM having an IP address and being configured in VMware Workstation with NAT mode. The VM's network interface is ...
- 11
0votes
1answer
24views
nslookup times out when type is set to MX
In order to send 2FA emails from a PHP web site to myself, I set up an MX record override and created a firewall rule that allows access to the mail server for the destination domain, but when I ...
- 141
0votes
1answer
74views
How can I determine which software is sending TCP packets on port 53 with undefined local IP addresses?
I'm seeing a ton of the following two lines in my dmesg logs¹: [602956.308844] [iptables] (10): IN=eno1 OUT=eno2 MAC=xx:yy:..:zz SRC=10.174.26.245 DST=192.168.22.59 LEN=60 TOS=0x00 PREC=0x00 TTL=63 ID=...
- 3,075
0votes
3answers
74views
Arch Linux systemd-resolve not resolving dns
Hi I have a small desktop/home network that local applications aren't able to resolve dns on. For example: dig reddit.com ;; communications error to ::1#53: connection refused ;; communications error ...
user534830
1vote
0answers
31views
DNS Problem with local Zone
Following Situation: an authoritive DNS Server for zone intranet.local wirh 192.168.0.30 a Client 192.168.0.106 dns cache only server 192.168.0.33 with /etc/bind/named.conf.local: zone "...
0votes
2answers
60views
Any real use cases that we are NOT prioritise Local Files Over DNS in `nsswitch.conf` [closed]
Background Recently, I learned that there is a name Service Switch configuration file - nsswitch.conf in some Unix-like operating systems. We can change the domain name resolution order using nsswitch....
-1votes
1answer
34views
How to setup certificate for duckdns
Running user@nextcloudpi:/$ `sudo certbot -d downwind.duckdns.org --manual --preferred-challenges dns certonly~` returned: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
- 1,524
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1answer
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Route DNS query to my tunnel
I have the following system: root@debian:~# dpkg -l systemd-resolved Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(...
- 11.2k
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2answers
60views
Can a linux bridge have a DNS different from the host?
I am using Kind on my workstation, Kind creates a network bridge for itself and uses it to provide network functionality to its Kubernetes [container] nodes You can see it here: ip route show 172.18....
- 101
2votes
3answers
254views
Replacing a string in a file with GAWK issue
I have a program that will run a set of commands against new server installs and I need to change an entry in a file for each install. We need to change the default DNS from 127.0.0.X (which it ...
0votes
0answers
16views
Configure bind9 to use Dnsmasq for local LAN names
I have a dnsmasq server (10.0.0.1) with knowledge of a hostnames and IP addresses for couple of local networks, say a Guest Wireless and Wired Networks. I also have a bind9 DNS running on a separate ...
- 993
1vote
1answer
101views
Force ssh LocalForward to use IPv4 when resolving the hostname
I have the following problem. I need to send report emails for one of our customers to his customers. Our customer provided an SMTP endpoint for that and added the IPv4 Address of our server to his ...
- 244
