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1
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0answers
27 views

Bind9 dynamic zone: where does the delay between update and availability come from?

I have set up a bind9 name server and created a dedicated (internal) subdomain, which can be updated by everybody for whatever purpose. The setup is very in simple and does work in general, but there ...
2
votes
1answer
39 views

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 ...
0
votes
0answers
17 views

dnsbind not working from client end

I am trying to configure dnsmasq in a virtual environment. I have created 2 VMs in VMWare Work Station. Was successful in installing and configuring DNS Server and able to do nslookup of client and ...
2
votes
2answers
19 views

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 ...
1
vote
0answers
27 views

Is dynamic DNS the only possible way to establish a connection between two routers with temporally IPs?

the situation is as follows. My and my friends Pcs are connected within a WLAN with a local IP to a router, the router gets its global IP from different ISP with a limited pool of IPs, so the ISPs ...
0
votes
0answers
24 views

Linux Amateur Radio device connected to PC

The PC is running Windows 7. What would be the best Network solution (VPN, SSH, DDNS, etc) when connecting these two devices? I am wanting my radio to be able to authorize my device easily without a ...
2
votes
0answers
103 views

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) ...
0
votes
0answers
74 views

Port forwarding Configuration for Webcam

I have a webcam which is streaming via mjpg-streamer on http://localhoste:8121/?action=stream. Now, I'm wishing to access the camera from outside. I'm using an DDNS system and now I have a domain name ...
1
vote
1answer
32 views

Visitors cannot reach my local apache server

I have a machine running the client of noip to provide dynamic DNS. This machine is in a network where I put its ip on the DMZ because I want visitors acessing its services. I am succesfull on ...
-1
votes
1answer
89 views

Hardware configuration required for DNS server

How can I know Hardware configuration required for DNS server: What will be the expected QPS (Queries Per Second) on the server. 5/Sec and peak time 10-20/Sec How many hosts will be ...
3
votes
1answer
347 views

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 ...
1
vote
1answer
112 views

DDNS (dynamic-dns) setup and adding a hostname to a device (to be visible on the network)

How do I provide a fixed Hostname to my device so that a netscan can shows up the device name across all platforms? How can I reach the device using the hostname/MAC-ID (something which is fixed) ...
1
vote
0answers
33 views

how to ensure stable domain names for newly-provisioned cloud server instances?

I've been playing with server configuration management tool Ansible, whose use often depends on reference to a local inventory file containing arbitrary host names. For example, # file: my_hosts ...
2
votes
1answer
428 views

SSH Setup - How will the router know my computer's ip?

I'm very new to the networking side of the house and am trying to set up SSH on my new Ubuntu machine. I have my DD-WRT router working with DDNS now and can log in to the router page -- but I'm not ...
1
vote
0answers
56 views

Deliver emails outside network, from a server behind router DNS and port forwarding

I've been trying to configure webserver to deliver emails outside the local network. Server is connected directly to the router and relay on its DNS service, and one of that online service for resolve ...
12
votes
1answer
12k views

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 ...
0
votes
1answer
446 views

Apache subdomain can not be resolved

<VirtualHost *:80> ServerAdmin webmaster@localhost ServerName domain.no-ip.org ServerAlias www.domain.no-ip.org DocumentRoot /var/www/main ErrorLog ...
0
votes
2answers
205 views

DenyHosts and no-ip.com

I recently installed DenyHosts and after a few remote logins I noticed that sshd: 8.23.224.110 had been added to the host.deny file after /var/log/auth.log showed a few sshd: Did not receive ...
2
votes
4answers
4k views

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 ...
2
votes
1answer
717 views

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. ...
1
vote
2answers
1k views

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 ...
10
votes
4answers
20k views

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 ...
5
votes
3answers
12k views

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 ...
2
votes
1answer
2k views

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 ...