Questions tagged [dynamic-dns]
The dynamic-dns tag has no usage guidance.
118
questions
0
votes
1
answer
33
views
DynDNS - Solution for site-to-site VPN's over 5G backup internet?
One of our sites have moved to a new locaiton and I have been battling with the fibre provider to install the new connection at the site. Currently, we run a 5G connection as a backup connection at ...
0
votes
0
answers
63
views
How can I do DDNS-like tracking of a remote server without DNS?
I have two servers, one has static IP addresses (the gateway), the other doesn't (the frontend).
Tunneled directly │ Over the public network
[FRONTEND]...
- 111
0
votes
1
answer
168
views
How do i enable DNSSEC on NameSilo (using DS records form YDNS)
(First of all i am new to domains in general and DNSSEC).
I have tried to enable DNSSEC on NamesSilo for my domain.
I only have the ds records in plane text and don't know wich value has to be ...
- 3
0
votes
0
answers
57
views
How create automatic deployement and allow my customer dynamic create and access my app on subdomains?
I have created an nodejs app and i want my customer to be able to dynamic create an instance of my app with automatic deployement on subdomains for example ‘customer1.mydomain.com’.
I know i can ...
- 1
1
vote
0
answers
7k
views
Dynamically register hostnames on DNS server (via DHCP)
I want to set up a small network, where a central DHCP server leases IPv4 addresses to the clients. The clients already have their hostnames set and should advertise those to the central DNS server, ...
- 121
-1
votes
1
answer
717
views
SFTP client connection fails using hostname
I have configured a debian server, hosting a website, for FTPS access using vsftpd. Port 22, SSL enabled.
When testing the connection with FileZilla, I successfully connect if I put the server's IP ...
- 151
1
vote
2
answers
2k
views
How can you de-couple DNS server from the AD Domain Controller?
I have an environment where Active Directory Domain Controllers host their own DNS domains (as is common).
However we are trying to separate DNS and host it on a standalone server (to eventually move ...
- 215
0
votes
3
answers
625
views
MX record pointing to a dynamic IP
I'd like to host simple-login on my home Synology server. For this, I have to register an MX record on a domain that points my IP address.
However, my internet provider does not guarantee a fixed IP, ...
- 111
0
votes
1
answer
885
views
Bind9 with dyndns refuses to update one zone, works OK on another with the same key
I have a Bind9 server (RHEL 8.5) in my lab that was working perfectly fine until a couple of hours ago. Then, it stopped updating one of the 2 zones for which I have setup dynamic DNS.
The example.com ...
- 41
1
vote
1
answer
528
views
Is it possible to have both static and a dynamic A record created for the same host on an internal DNS server?
I am working on a case study related to risks from insecure dynamic DNS updates. Suppose there is an internal DNS configured that has a mix of static and dynamically created addresses. Consider a ...
- 11
0
votes
1
answer
770
views
Automate ssh port forwarding using DNS
I have a number of ssh hosts (a dozen), for simplicity host1, host2, etc.
I frequently need to forward port, e.g.
ssh -L 8888:localhost:8888 host1
ssh -L 8889:localhost:8888 host2
ssh -L 8890:...
- 101
0
votes
1
answer
39
views
Different users coming through VPN to my service
I have a web service (php, sql etc) running on an AWS account. I have openVPN setup, so users must establish the VPN connection, then the IP address will work.
I currently have this set as example123....
- 149
1
vote
1
answer
523
views
Why does nsupdate fail with "operation canceled"?
I'm trying to dynamically update a DNS server using nsupdate, running nsupdate -k mykey.private -d -v ./my-nsupdate-commands.txt.
But I get the error:
Communication with 192.0.2.0#53 failed: operation ...
- 828
0
votes
1
answer
2k
views
Bind9 refuses key from nsupdate
I have a Bind9 DNS server running (and working!). All the zones were managed manually. I now want to change a zone to be updated automatically. After setting things up i tried nsupdate but it fails ...
0
votes
1
answer
109
views
Is there a way to direct traffic coming in on the same port to two different VMs? [closed]
So the basic idea is stated in the question above, but let me explain.
I was thinking of hosting a Minecraft server inside a VM (using bridge mode so I can direct traffic to it via port forwarding) on ...
-2
votes
3
answers
518
views
using a dynamic dns as a name server [closed]
I'm playing with hosting my own website on a residential internet connection. I have a dynamic ip assigned but the isp also gives me a dynamic dns domain name, something like xxx.go.ro . I bought a ...
- 1
1
vote
0
answers
740
views
How does MS DHCP server decide which DNS server to try to dynamically update?
In MS DHCP, under Scope Properties, on the DNS tab, it says:
You can setup the DHCP server to automatically update authoritative DNS servers with the host (A) and pointer (PTR) records of DHCP ...
0
votes
1
answer
53
views
Several redundant automatic entries for all DHCP client machine host names in Samba 4 AD DC DNS
We have a Samba 4 AD DC installation wich is also the DNS in our network.
It collects entries of all DHCP client machines with their addresses automatically. I can remember to have activated this ...
- 111
0
votes
1
answer
912
views
Dynamic Dns changing for GCP f1 micro instance
I am quite new to this ordeal. I am trying to host my ghost blog on GCP f1 instance, the point being that I want to host a website free forever (as per the current condition). GCP f1 instance was the ...
google-cloud-platform
1
vote
1
answer
1k
views
Allow connections to apache from a dynamic IP
When setting up an Apache server, it's obviously possible to allow connections from a specific IP address [/range].
I have a dynamic IP and I'm wondering, if I use a DDNS service, whether it's ...
- 145
3
votes
0
answers
120
views
What is the practical difference between krb5-self and krb5-subdomain in BIND9 update-policy statement?
What is the practical difference between krb5-self and krb5-subdomain policies in BIND9 on update-policy statement while dealing with dynamic DNS updates on zones?
From the BIND9 documentation it ...
- 5,520
0
votes
0
answers
388
views
NGINX allow directive with domain instead of IP
In Nginx the allow directive (from module ngx_http_access_module) does not seem to work with domains. It just seems to work with IP.
Why would that be useful, you ask? Let's say you want your family ...
- 153
1
vote
0
answers
407
views
ddclient Returns 7000 Error Connecting to Cloudflare
I am setting up DDNS using ddclient. I have searched the web, and nothing seems to help. I looked up examples, and I don't see what's going wrong. I tried using both api.cloudflare.com/client/v4 and ...
- 111
2
votes
1
answer
2k
views
Dynamic DNS with Bind9 and BIND_DLZ cannot start?
I have a device running Samba as an Active Directory Domain Controller using BIND_DLZ as a backend.
On top of that I am running a secondary device also configured as an Active Directory Domain ...
0
votes
1
answer
527
views
timeout issues when connecting to local tomcat server with afraid.org dynamic dns
background
i'm working on a very small team to update the css on a struts 2 website. i'm deploying my code to a tomcat server for testing, and the server pulls its data from an oracle database ...
- 1
1
vote
1
answer
3k
views
Can I disable dynamic dns update during "realm join"?
When (re-)joining an EL7 system to the AD domain, something somewhere issues a dynamic dns update for $FQDN. How can I suppress that?
The sssd.conf itself is pre-populated with
[domain/ad.example....
- 1,111
0
votes
3
answers
2k
views
Domain Name Routing Across Multiple Varying Servers
How can you use one public IP address to host multiple domain names that span across multiple servers in your LAN?
Let's say I have 5 web servers, serving 5 different domain names, using 5 different ...
- 1,510
2
votes
3
answers
5k
views
using (windows) PowerShell to perform a dynamic DNS update with TSIG to a BIND9 server
I run BIND9 DNS servers and allow Dynamic DNS updates from my customers by using a TSIG key.
One of my customers uses only a Windows environment, and therefore PowerShell to run scripts. He wants to ...
- 587
2
votes
2
answers
4k
views
List dynamically added DNS records
I can't figure out how to list dynamically added DNS records. Lets say I add a record like this:
~$ nsupdate
> update add test.domain.com 3600 A 1.2.3.4
> send
After this I can look up the sub ...
- 163
0
votes
1
answer
487
views
ssl (letsencrypt) for the following scheme: server (dynamic ip) -> ddns (no-ip) -> cloudflare -> hostname
My setup is as follows:
Dedicated server (Linux) with dynamic IP address
NO-IP domain name
domain name
When I want to access my system (server), I access my domain, which redirects me to my NO-IP ...
- 101
-1
votes
1
answer
566
views
BIND with Dynamic DNS [closed]
I'm using a DDNS service provider for my domain. Because my server is behind a router that changes IP.
I have just figure out that I can have a dns server (like BIND) inside my local server and, from ...
- 225
1
vote
0
answers
411
views
DHCP DDNS + Samba AD?
I'm working on moving a small business network away from a Windows Small Business Server. I've set up the active directory using Samba, and it all works well, but I see one potential problem: ...
- 539
0
votes
2
answers
89
views
How can I specify mail "MX" records on the "A" record server
My internet provider automatically creates a dynamic dns that points a name like client120.example.com to my dynamic ip address.
I see this is done by replying with a DNS "A" record containing my IP.
...
- 1,107
0
votes
0
answers
77
views
VPN to dynamic IP behind a Comcast modem
I previously had my Windows server, which handles VPN, on a static IP. However, I just moved and I can only get Comcast (CenturyLink doesn't have fiber into our area yet).
And Comcast is all dynamic ...
- 303
-1
votes
1
answer
4k
views
NGINX Reverse Proxy to Dynamic DNS
I have a VPS that hosts my personal portfolio. My DNS (*) is set to point to the VPS's IP. I'm also setting up some local self-hosted (Off a NAS in my home) applications such as Cloud storage and sync,...
0
votes
1
answer
1k
views
Nginx reverse proxy arbitrary directory to subdomain
We currently use Nginx as a reverse proxy in front of several IOT devices to access them from outside our internal network. Up until now, I've statically mapped a location to each device's interal IP ...
6
votes
4
answers
27k
views
How to set an IP address in server_name directive, not a domain name?
For some reason NGINX doesn't work if I set a bare IP address in server_name directive:
server {
listen 80;
server_name xx.xx.xxx.xx; # doesn't work
server {
listen 80;
server_name ...
- 177
1
vote
1
answer
1k
views
Virtual machine - DNS hostname problems on Windows Server
I have a Windows Server 2012 R2 in a local domain with an local DNS server running. My clients are configured to use this DNS server.
Today, I had the problem with a client that could not log in due ...
- 11
5
votes
2
answers
5k
views
How to fully disable Dynamic DNS on Windows Server?
so we're a University campus, and in DNS Manager, all the students phones, tables, etc, are registering their A records in DNS. We don't want them to. Ideally, we'd just have domain joined devices ...
- 83
0
votes
0
answers
269
views
Restricting Source IP of DDNS Updates
Goal:
For a non-Microsoft DHCP server to send dynamic DNS updates on behalf of non-Microsoft domain clients.
Question:
With a particular zone in a Microsoft DNS server configured for "Nonsecure and ...
4
votes
2
answers
3k
views
Non-secure DNS server - Allow dynamic updates only from DHCP server
I have a standalone DNS server configured for "Secure and Non-Secure" dynamic updates. I also have the DHCP role installed on the same server.
How do I ensure that only the DHCP server can update ...
- 536
1
vote
3
answers
10k
views
AD Dynamic DNS Updates not triggering on clients
The problem
Recently the computers at our organization moved to a new AD domain, due to a merger. We are having problems getting the clients to dynamically register their DNS records in our AD-...
- 659
0
votes
4
answers
15k
views
Resolve Dynamic DNS to internal IP
I am not very familiar with dynamic DNS, and was curious if I could get it to work for a certain use case.
I have a few Raspberry Pi's I'm setting up for mocking server setups of applications we use ...
- 3,454
5
votes
2
answers
24k
views
bind: "nsupdate -l" failed with status "update failed: REFUSED"
I just switched to bind 9.9.5 dynamic DNS feature with semi-automatic management of DNSSEC entries, the whole process went good and my zone files were updated well, but now I can't update or add ...
- 468
3
votes
1
answer
14k
views
Disabling dynamic DNS updates with Group Policy
I am administering a system which for reasons beyond my control have a disjoint DNS namespace. I don't like it, but that's how it is, and I have no way of changing this. The reason is that the servers ...
- 2,625
-2
votes
1
answer
43
views
Multiple Physical (and Virtual) servers (mail, web, etc.) on single link. Can I use DDNS to use top level domains to each box? [closed]
This all started last year when I switched to a LISP based solution for my old "C" address block without the expense of T1 lines. I have a cable link and a dsl link into my Cisco 2800 that then ...
- 1
0
votes
1
answer
135
views
Can I define a sub-domain for a record set at my ISP? [closed]
My ISP for home internet is giving me some kind of DNS record that lets me redirect a name to my dynamic IP address, I set something like
MYNAME.go.myisp.tld
So accessing that domain shows my home ...
- 1,107
0
votes
1
answer
375
views
Google app cloud - Redirect to naked domain
I have google app engine application working on my naked domain but I can't find any tutorials on how to redirect the non naked (www) sub domain to the naked domain.
It seems only like they build in ...
1
vote
1
answer
681
views
Using static records in dynamic zone with Samba and BIND_DLZ
I've deployed Samba4 as AD controller using BIND_DLZ as a backend. It works ok. Now I have a bunch of servers with static IP's, and I would like to resolve them, but I can't find a way to do this.
So ...
2
votes
1
answer
436
views
BIND DNS A Record File
I've been adding about 10 DNS A records a week for the past 2 weeks. After updating a record using nsupdate it occurred to me that maybe I should find a way to separate the DNS A records from the ...
- 326