Questions tagged [dynamic-dns]

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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....
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17 views

Is it possible to enable RFC2136 DNS updates for a samba-AD domain?

I'm experimenting with a Synology NAS that's running bind9 and samba to host a local subdomain with an AD realm of the same name, e.g. domain : sub.x.notcom, realm : sub.x.notcom ... I'll substitute ...
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1answer
55 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 ...
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1answer
26 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 ...
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22 views

Free Dynamic-Dns Paradigm and how the redirections work in this case

(For 4 minutes lecture) BACKGROUND In my high school we're doing a project and my friends and I decided to implemented to our town. So we decided to make a website, and now we need to create our web ...
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1answer
36 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 ...
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3answers
45 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 ...
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0answers
27 views

When I use ruby dns.rb for minidyndns this error appear (Errno::EADDRNOTAVAIL)"

We are running a web server for two websites and no we wanna serve another service to our clients. we want to give them DynamicDNS and we need to have our own ddns server. As we decided before to use ...
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0answers
493 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 ...
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1answer
29 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 ...
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1answer
794 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 ...
1
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1answer
259 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 ...
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56 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 ...
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0answers
91 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 ...
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0answers
194 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 ...
2
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1answer
905 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 ...
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1answer
126 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 ...
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1answer
1k 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....
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3answers
673 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 ...
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3answers
2k 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 ...
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2answers
2k 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 ...
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1answer
352 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 ...
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1answer
459 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 ...
1
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0answers
327 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: ...
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2answers
45 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. ...
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0answers
68 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 ...
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1answer
3k 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,...
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1answer
844 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 ...
3
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4answers
21k 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 ...
1
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1answer
911 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 ...
5
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2answers
3k 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 ...
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0answers
139 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
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2answers
2k 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 ...
1
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3answers
7k 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-...
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4answers
12k 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 ...
5
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2answers
18k 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 ...
3
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1answer
12k 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 ...
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1answer
40 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 ...
0
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1answer
103 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 ...
0
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1answer
321 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
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1answer
537 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
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1answer
191 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 ...
1
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2answers
4k views

Samba4 and BIND9_DLZ - static records with samba_dnsupdate dynamic dlz

I have some records in bind for my DNS zone. Now I want to configure Samba4 Active Directory which wants to add some dynamic records into my zone. So I include /var/lib/samba/private/named.conf in my /...
8
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1answer
6k views

Google Dynamic DNS Wildcard Subdomains

I can't get Google's Dynamic DNS API to work for a wildcard domain. I can get defined subdomains to update their IP just fine but I always get nohost when i attempt to update the wildcard's IP. This ...
1
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1answer
3k views

How to configure dynamic DNS updates when using stateless IPv6 addressing?

I am using Server 2012 with AD/DNS/DHCP. I have successfully configured stateful DHCPv6 however this does not accomplish what I would like to achieve so I disabled it and I'm currently trying to get ...
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1answer
2k views

Dynamic Global Hostname and nsupdate do not send update to authoritative nameserver

I'm trying to do DDNS. I have two Apple products: an Airport Extreme and a Macbook Air, and I want to update my DDNS server via the "Dynamic Global Hostname" feature. I setup DDNS in the cloud (BIND),...
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0answers
1k views

How do I restrict the domain name for reverse DNS updates with bind and nsupdate?

I've set up Bind to allow hosts to update only their own DNS entries, but I'm having trouble with the reverse DNS portion of this. My configuration is as follows: named.conf options { listen-on ...
1
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2answers
3k views

How to limit dynamic DNS updates

First off, I'm sorry if this is vague, but I'm not very familiar with DNS or DNS terminology. What I'm trying to do: I want to limit what hostnames are allowed to dynamically update DNS. I don't ...
3
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2answers
1k views

Microsoft DHCP server and Unix BIND dynamic DNS

Is there any way to make Microsoft DHCP server to securely dynamically update A and PTR records in Unix Bind DNS zone? Microsoft supports secure update using username/password authentication. Bind9 ...
4
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1answer
1k views

Forwarding requests made to Windows DNS server for a domain it's authoritative for but doesn't have a record matching the request, onto BIND?

Is it possible on a Windows DNS server to have it forward/proxy requests for a domain it's authoritative for but doesn't have a record matching the request.. onto another server like a BIND server ? ...