Unix and Linux Stack Exchange
Unix and Linux Stack Exchange

Questions tagged [dynamic-dns]

42 questions
56
votes
9 answers

UFW: Allow traffic only from a domain with dynamic IP address

I run a VPS which I would like to secure using UFW, allowing connections only to port 80. However, in order to be able to administer it remotely, I need to keep port 22 open and make it reachable from home. I know that UFW can be configured to allow…
Carles Sala
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23
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4 answers

How to find out if Ubuntu is using DHCP (Ubuntu 12.04 LTS GUI)

How can I find out if my IP address is DHCP, Fixed or Dynamic? I need to tell my network administrator what the IP address is, that my Virtual Machine is using. I know the numbers, but I don't know if it is fixed or not. I have tried: ifconfig and…
Kevdog777
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7
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7 answers

Make nslookup use specific interface

On my computer I have two network cards. Both are using different Internet Providers service. Both Internet service provider have different DNS server and their IP address are known to me. I want to make sure when nslookup sends queries, it passes…
Rahul Gautam
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6
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4 answers

How to create a custom dynamic DNS solution?

You all probably know commercial dynamic DNS providers like dyndns.org or no-ip.com. But how to create a similar service for just a handful of machines? What server software would be best suited for such a setup (under Linux)? Advantages: the…
maxschlepzig
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5
votes
1 answer

How does one automatically update Route53 from a raspberry pi server at home?

A raspberry pi at home running Rasbian Jessie 8.0 is running Apache. Using dig TXT +short o-o.myaddr.l.google.com @ns1.google.com produces an IPv4 that is used to update the value in the record sets of the hosted zone in AWS's route 53 circled in…
Manics lie ohm
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5
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4 answers

Is there a way to find self's dynamic public ip address using cli in Debian?

The easiest/simplest understanding of the web is a. When you connect to your ISP, the ISP gives a dyanmic address (like a temporary telephone number) only for the duration of that connection, the next time you connect, you will again have a…
shirish
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3
votes
2 answers

redirect web server with no-ip and port forwarding in livebox

I want my Apache web server running on a Livebox (home router appliance running Linux) to be accessible from the Internet (WAN). I installed and configured the application noip2 on my Ubuntu PC. When I ping my hostname, it redirects me to my WAN…
tmedtcom
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3
votes
1 answer

Hosts file on server with dynamic DNS?

I am setting up a RHEL-based server that is associated with dynamic DNS from DynDNS, with a domain of, say, "abc.dyndns.org" that is dynamically updated with the server's IP address. I have read that in order to ensure access to your server's…
hpy
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3
votes
2 answers

Running my own dynamic DNS record hosting

I intend to run a debian server at home, it will host various websites, SSH server and email. I have a dynamic IP address and I am unwilling to pay the extra for a static IP. I was thinking I could probably get around the DNS issue if I ran my own…
John Hunt
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2
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0 answers

NICs, DHCP and IP addresses

I am the sysadmin in a small company, where we build a lot of PC-/workstation type of computers. They usually come with several LAN ports as well as WIFI on the motherboard, and because the machines are moved around and disconnected a lot, they are…
j4nd3r53n
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2
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3 answers

How can my server detect IP changes in order to notify my dynamic-DNS provider?

Just set up ubuntu server, which has a dynamic ip. I am looking for a way to keep my dns server updated. Im using entrydns to do this and they provide the following command to update the server. curl -k -X PUT -d ""…
geminiCoder
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2 answers

Trick to create restricted linux user I can remotely control no matter where it connects

Short version: I need to give my 4 yr old son a laptop so that he can skype with me from the other side of the globe. The only help I can expect from his legal guardian is turning the laptop on at the designated times and enter the wifi password.…
Mephisto
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1 answer

Bind DNS A Record priority

I am working on 2 scenarios: Scenario 1: DNS A Record with 2 IPs [Default it works on Round Robin], but I am looking for option where if First IP not reachable then share 2nd IP. Scenario 2: DNS A Record with 2 IPs [Default it works on Round…
Ashish
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2
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2 answers

ssh and VNC connections are directed back to the original machine by dynamic DNS server

First question I've asked here so please forgive me if I accidentally break a rule. I recently set up an ssh server on my home machine, and am using ddclient to keep the dynamic DNS service at home_hostname.my_domain.me updated with the home…
jzimbel
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2
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0 answers

How to set the remote host to a domain name with dynamic IP in *swan client?

I am now setting a vpn client for my university's own L2TP/IPSec VPN network, using both openswan, libreswan and strongswan (for different distros). Here is the problem: The remote site (VPN server) is a domain name (say xxx.com) with multiple IP…
nnkken
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