Questions tagged [dns]
Translates domain names to IP addresses. DNS stands for Domain Name System.
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How to know when the last dns flush took place?
I'm on a Windows 10 machine and trying desperately to see when the last DNS flush took place. I know you can look at the TTL in a displaydns but is there no event that shows when the system last did a ...
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My Windows (not server) computer can be accessed with IPv6 but not IPv4 (telnet and HTTPs)?
I have a Windows 11 Pro computer with IIS enabled. It has public IPv4 1.2.3.4 and 1:2:3:4 (from https://whatismyipaddress.com/). I setup an IIS website and route my domain to my server with Cloudflare ...
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Add custom domain on Clouflare Worker&Pages
When using Cloudflare Workers&Pages, why do I have to explicitly add a custom domain through the Workers&Pages menu instead of just adding a CNAME record that points to the Workers&Pages ...
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28
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Mac OS Sonoma can't access Windows DNS server
New user to Mac. We have a few at work so I picked a somewhat newer one up so I can get familiar with it.
At home I have a standard Windows Domain with a Windows DNS server running on Windows Server ...
- 166
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13
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DNS not working after switching to VPN and back? (Home network)
I have a raspberry pi, hostname raspberrypi, on my home network that I can usually connect to just fine - I didn't have to set anything up, it just worked after it was plugged in, presumably using my ...
- 101
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32
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Why is my Windows laptop not querying local DNS server?
I have a local PowerDNS server on a Linux box. I can access it fine on my Windows laptop under Windows Subsystem for Linux (WSL). dig @main probitas returns the expected address. ping probitas and ...
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23
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HTTP name resolution for local HP printer
OS is Windows 11
My local HP printer has a web server at http://HPF38629 (That's listed in the printer's network configuration as the printer hostname). This works, I can connect to the printer by ...
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21
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Unable to remove a record from a Dns Client Cache on Windows 11
I set up a website in IIS on my local machine running Windows 11. It had a domain name secured by SSL. I have since deleted this site from IIS, removed the SSL certificates and moved the site to a ...
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1
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63
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What IP adress do I point my domain to?
Im currently trying to host my website after buying a domain and adding it to cloudflare. But I dont get which IP Adress I need to enter there, as it cant be my local IP adress but I also dk if I am ...
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How to set-up Nginx conf to not pick Alphabetic order incase URL doesn't match reques
Wasn't sure how to word out the title but i have multiple docker server running wp/nginx Now we have a conf with a block for 80 and 443 for every site in the conf.d dir and in Cloudflare point the ip ...
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WSL No Internet Connection (Ubuntu, Windows 11)
Clear Network/Internet Connection Problem:
ping google.com returns ping: google.com: Temporary failure in name resolution
pip install streamlit or other packages return network error message; same ...
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2
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Accessing domains via IPv4 inside the browser prompt. Once and for all
Let us discuss so we can come up with a working solution.
Suppose we have an arbitrary address 1.1.1.1 that is a broad domain. Now we know that it hosts a domain named "website.site". But we ...
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27
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User's PC have 2 different IP in the same DHCP network
I currently have an issue with a user on Active Directory where their PC have 2 different IP address but in the same DHCP network (ex: IP 1: 192.168.1.10, IP 2: 192.168.1.11), gateway: 192.168.1.1). ...
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DNS Resolution Issue on Free Hotspot via mobile router: "No address associated with hostname"
I am using an Ubuntu machine connected through a GL.iNet router to access a free hotspot, but I am facing DNS resolution issues. When I try to access the hotspot login page, I get the following error:
...
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How to configure cyberpanel instance hosted on a subdomain to create email addresses for the whole domain [closed]
TL;DR: Is it possible to configure cyberpanel's mail server / DNS records in such a way that the cyberpanel instance is accessible from a subdomain (admin.example.com) and from inside cyberpanel, I ...
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Same website - 2 DNS, 1 Slow and 1 if Fast
When I connect via an old DNS to my website (also API calls to this DNS) it is super fast, loading data is fast, on the new DNS it is slow ! really slow like 10 times. it used to be fast.
I use django ...
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macOS WireGuard not working for IPv6
Using wireguard-tools stable 1.0.20210914 from brew on macOS 14.5 May 31, 2024:
This package didn’t use to work at all, now it works for IPv4, but that’s of little help on a dual-stack IPv4 IPv6 mac. ...
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62
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Systemd-resolved and ping
The question
Systemd-networkd succesfully requests an IP address for my computer and routes its traffic to and from the gateway as expected.
Systemd-resolved can correctly resolve FQDNs and IP ...
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25
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1
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What is the maximum length of a domain name?
According to domain name specifications RFC 1035:
2.3.4. Size limits
names 255 octets or less
According to the SMTP RFC 5321:
4.5.3.1.2. Domain
The maximum total length of a domain name ...
- 487
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81
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mDNS Discovery with Panasonic TV
TV Model: Panasonic 77LZ2000
tldr:
I want to get the name an IP of my panasonic TV using mDNS discovery. I can see other smart devices and my phone (when wireless debugging is switched on) with things ...
- 113
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48
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Migrating from Bind9 to PowerDNS - forwarders
I have been studying how to migrate the Bind9 DNS server to PowerDNS, but I am stuck in the following situation:
In Bind9 in the named.conf file, I have the "forwarders" settings for 8.8.8.8,...
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MS-domain: Some SRV-records not working thru resolver
Hi all!
I'm trying to fix this problem for several months now. We are using Cisco Umbrella as DNS protection, but when using it's DNS server, my endpoints wont work properly. Because of that, we are ...
- 801
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42
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Bind9 Response Rate limiting for a specific subnet
I want to configure bind9 so that a specific IP range is restricted from sending too many requests.
Suppose I want to limit the range 2001:dead:beef/48 to 5 requests per second. This can, according to ...
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1
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39
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Wix does not allow to add NS records
I want to delegate internal.infraheads.com to my internal nameservers, but I depend on Wix as they enforce the use of their NS servers. And they don't support adding NS records required for NS ...
- 405
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81
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macOS refusing to use my primary dns server (dnsmasq on same network)
I run dnsmasq 2.89 to resolve IPs for local services on my network. I use DHCP to set the primary DNS server IP to my dnsmasq instance, and the primary to Cloudflare DNS. I am using macOS 14.3.1 as my ...
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61
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AdGuard Home: DNS IPv4 Rewrite (Discard AAAA) for CNAME Domains
After reading Docs, I still cannot figure out how to:
By default, 2024.aclweb.org CNAMEs to acl-org.github.io.
Lots of domains CNAME to *.github.io, and I want to specify 185.199.111.153 for all ...
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39
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Understanding DNS IPv6 result using dnsmasq
I'm new to IPv6.
I've redirected a domain to 0.0.0.0 on dnsmasq DNS server like so:
address=/domain.com/0.0.0.0
when I use nslookup on this domain using my DNS server I get the following result:
...
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1
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23
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What is the difference/precedence of resolved.conf and a .network configuration?
There are two places where I can set up the DNS server for a systemd linux (static configuration):
in /etc/systemd/resolved.conf, in the [Resolve] section, a DNS= entry
in /etc/systemd/network/<...
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Why does Firefox refuse to load sites if there is an entry in the ‘/etc/hosts’ file in macOS 14.4.1 (Sonoma)?
If I make an entry in /etc/hosts for a site, Firefox (v125.0.3) refuses to load the site. I'm running macOS 14.4.1 (Sonoma).
The entry in the /etc/hosts file is:
93.184.215.14 example.com www.example....
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45
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If both RA and DHCPv6 provide DNS servers, which one would devices use?
I use a home router that also has a DNS server that forwards to the ISP DNS servers and caches them. But I don't want to use ISP DNS servers, so I configured the router's DHCP and DHCPv6 server to ...
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105
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Setting up reverse DNS for home email server with IPv6 on Linux Ubuntu 22.04 or Debian
I'm trying to set up an email server at home using Ubuntu 22.04 and IPv6. I would like to configure a reverse DNS for my IPv6 address to ensure reliable email delivery.
I've followed this guide to set ...
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47
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Rebooting breaks dns-server docker container
This is my ~/docker-webdev-stack/docker-compose.yml
services:
dns-server:
container_name: dns-server
hostname: dns-server
image: technitium/dns-server:latest
# For DHCP deployments, ...
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how to block http://tplinkwifi.net/ url
let's say we are on windows 7, and we want to block a specific URL from getting resolved. one would assume to throw it into HOSTS file and job is done, but for some reason this does not work, so the ...
- 896
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85
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LAN Networking - Local DNS Name not Working in Windows Browser
I have a home server (running Ubuntu, which I named "lenovo") that runs a couple of HTTP servers. These HTTP servers are accessible to other clients on my home LAN. They are always ...
- 1,804
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165
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Set wsl2 to use host nameserver
I'm using wsl2 on Windows 11, and I recently encountered a problem where when I change networks, the wsl2 dns (nameserver at resolve.conf) address doesn't update, to match, and there for cannot lookup ...
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87
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New OPNsense setup, almost all default, 1111&8888 DNS set but can only access few sites?
So, I have a protectli box with opnsense 23.7.5 installed, currently I have the ISP router/modem in front of the opnsense box and a laptop (which I have been dual booting between win/lin) to try to ...
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0
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25
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Mirror traffic to two different loadbalancers
We have infrastructure that receives traffic from devices through a route53 subdomain pointed to a load balancer. The domain is configured on the devices and its not feasible to update/add another ...
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1
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67
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Windows 10/11 network does not show all the computers
Three PC - Win 11 Home, Win 10 Pro (2x)
Gigabit Ethernet, router (CISCO/TP-Link/Mikrotik) as DNS and DHCP server (static/dynamic/predetermined), the same workgroup
Setting is the same in all the PCs:...
0
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2
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106
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Can't configure Windows to reply me with proper IP address from ping utility
I have a problem with my OS. The ping utility is returning me wrong IP address when I try to ping local hostname server.
On my server I have 3 interfaces:
Ethernet0,
Ethernet1,
Ethernet2
The primary ...
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1
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360
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Connecting to WireGuard no Internet Access
I'm using an old laptop as a Home server and I wanted to set up a VPN (Wireguard & DuckDNS using PiVPN) following this guide: https://chriskalos.notion.site/The-0-Home-Server-Written-Guide-...
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What could be a possible reason for a server within a local network not being accessible as external domain?
I have a domain name "example.com" that points to my public IP (80.92.102.112). The router connected to the internet (192.168.0.1) forwards specific ports to a router within the network ...
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2
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63
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Expected local range address not resolving to local host
I have a web server running locally with the this address: 127.0.0.1:8000.
127.0.0.1 <-- Local IP address
8000 <-- Port number
When I use netstat command, I see the many IP addresses under ...
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1
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How to use DuckDNS for multiple letsencrypt DNS challenges (normal + wildcard cert)
The tools
Let's encrypt is the source of nearly all SSL/TLS certificates for HTTPS at the hobbyist level, offering automatic issuance and renewal of certificates, using challenges offered over HTTP or ...
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Can you forward custom domain traffic to an ip address that is behind a NAT?
I do not know much about this topic so any help would be appreciated. I live in university residences and the internet connection that is provided to us is hosted by Wifinity networks. I run a media ...
1
vote
1
answer
78
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Is it possible to have a single IP for a VM in different networks?
I am learning about DNS administration in Linux. And I do it in my office and home. In office my IP range is 10.x.x.x/21 whereas in my home, my IP range is 192.x.x.x/24. Since I am learning DNS by ...
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328
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Enable DNS Windows 10 host for WSL2
By default, WSL2 appears to pick up the Windows Host IP Address as its autoconfigured DNS server.
This can be seen by inspecting the contents of /etc/resolv.conf.
For example
$ cat /etc/resolv.conf
...
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ping and getent hosts give different result
I have entry in /etc/hosts
1.1.1.1 db_external
When I am doing ping I get it correct
ping db_external
PING db_external (1.1.1.1)
When I am doing
getent hosts db_external
for some reason I got :
::...
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322
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AdguardHome DNS not working for Wireguard VPN clients on OpnSense
For my home network I have a x86 System running OpnSense. I use Wireguard to connect external devices with my network (set up according to the official documentation).
This setup worked fine until I ...
- 51
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0
answers
74
views
docker container can't resolve hostnames defined in dns-server container
dns-server container
version: "3"
services:
dns-server:
container_name: dns-server
hostname: dns-server
image: technitium/dns-server:latest
# For DHCP deployments, use &...
- 118
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0
answers
107
views
CentOS Stream 9 Name or service not known frequently
I have a computer running CentOS Stream 9 as server. It is connected to my router directly by wire. It is working well except getting 'Name or service not known' frequently (like about 10 mins once)
...
