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12

tl;dr - Nope. The difference between static addresses and dynamic ones is merely that dynamic addresses are handed out by a DHCP server. Period. The range of IP addresses that a DHCP server can hand out is completely arbitrary, so without access to the DHCP server's configuration, there's no way to tell definitively which is which. Depending on what lease ...


8

No, pay them. Nothing is free.


7

Instead of creating A records use CNAME records and point them to your Dyndns host. So CNAME = WWW -> your.dyndns.addy This covers your requirements and if you have configured dyndns to update automatically shouldn't require any further maintenance.


7

You don't specify the IPs on your client, nobody does that, you point them at the matching DNS record for your services. And for your second question you're update your DNS records to match your new IP addresses. Please don't take this as rude or offensive but this is a very basic question that anyone with even the smallest experience with web/IP systems ...


4

So far it has happened (to you) just once and that was for extraordinary reasons. Considering the drawback of dynamic DNS I really don't think it's worth the bother. If you still want to do it anyway just get one of the DDNS clients and run it on the server itself, as that's the only place it will work correctly. If you are seriously concerned you should ...


4

Unfortunately your PublicDNS/IP will always get changed at start/stop, but there is a workaround which implies using EIP(Elastic IP). You can create yourself an EIP and assign it to this server. In case of a stop/start you'll need to do the assign of the EIP again though since in case of a server stop the EIP gets de-assigned. Also please note there is a fee ...


4

DynDNS will provide a name to IP resolution (something.homeip.net to 123.123.123.123). You don't need Custom DNS to do this unless you require your own domain. Your port forwarding will work regardless of which option you choose. Your router will provide the port forwarding. You can configure your router to forward like this: WAN IP, Port 5900 -> PC ...


4

The FAQ -- Running an OpenVPN server on a dynamic IP address While OpenVPN has no trouble handling the situation of a dynamic server, some extra configuration is required. The first step is to get a dynamic DNS address which can be configured to "follow" the server every time the server's IP address changes. There are several dynamic DNS service ...


4

It is not necessary to have a static IP to run a webserver from home as long as there is a static name in DNS that will update if your IP happens to change. This is possible through a variety of DNS providers. Dyndns and No-IP are probably the most well-known providers. Another DNS provider, EveryDNS (which is now owned by Dyn), also provides this ...


3

What happens if you turn it off and ping the server's IP that it's supposed to have? Anything answering? What if you remove and reinstall the network card driver? Does the server have more than one card, or is it teamed with a second card? Redundancy? What kind of hardware is it? Update the driver on the card? Change the port the network cable is plugged ...


3

I wondering why the clients behind the inside interface have to enter the Public IP, wouldn't it be easier for them to use the private IP of the DMZ host. Then you could make a normal nat eg. static (dmz,inside) tcp (Inside IP Range) www 192.168.1.5 www netmask 255.255.255.255 As far as I get it the problem in your case is, that when a client makes a DNS ...


3

Well AT&T will have a range of IP addresses that they give out to clients via DHCP. This range however will be very large, it will be used to service all their clients, giving you this IP range would be no use to you anyway, as you can't really go to LexisNexis and ask them to allow you access for this range of IP's, as it would effectively open it up ...


3

Try using VPN servers for that, order somewhere a VPN server with static IP.


3

It sounds like you need to port forward TCP port 3389 to the server in the router/firewall.


3

Some possibilities: 1) What about using dynamic DNS for each host? The last poll time indicated in the service can be a rough uptime gauge. 2) Something equivalent to Logmein Hamachi can create a virtual private network of all the hosts. The IP addresses of each host in the VPN can be static. Then the normal Nagios monitoring can be done. Or simply regular ...


3

I use http://freedns.afraid.org having using them for 2+ years without any problem. Disclaimer. I use it for home use and not production.


3

You've already mentioned DynDNS, it sounds like all you're missing is the client. They mention a couple linux-compatible clients on their website. ddclient inadyn Using either of these in combination with a dynamic DNS service should accomplish what you want. I originally assumed that your shared hosting would provide you with shell access. Without ...


2

The bellow script would ping your dynamic address and grab the ip only and then compare against the ip stored in last_ip.txt, if they are different the ip in hosts.allow will be removed and replaced with the new ip aswell as the ip in last_ip.txt. You can then set this code on your crontab to run every 5 minutes or 10 or whatever you seem fit. It is not as ...


2

You could use www.dyndns.com to monitor your dynamic ip and change the dns records automatically. I've used it for simple setups and it works well. But, a home internet connection might not be the best solution for a reliable 24/7 software service that always needs to be available.


2

I'm going to go ahead and preach the VPN option. All you have to do is setup a small and simple OpenVPN server and the web server. Generate certificates for each iPad, then allow only the IPs from the VPN to access the website in question. OpenVPN can be hard at first but once you start playing around with it, it should rapidly get simpler. The solution ...


2

Is this machine on a domain? Some squirrely issues can be caused by having a network set as something other than a "Home" network in Windows 7. Also, netsh winsock reset may help, so may Dial-A-Fix (Dial-A-Fix does not work with Windows 7, per here). Also, ensure the machine is getting the proper DNS suffix and the gateway is an IP (not a hostname). Try a ...


2

The reason split horizon DNS is set up is almost always because an internal service cannot be reached off of the LAN. For example, Active Directory domain controllers that also hold internal DNS. If your all of your services are intended to be externally reachable then split DNS isn't necessary, strictly speaking. Discard any use of split DNS in your design ...


2

If you have a dynamic IP address on your server then you need to have some method of detecting the change and then updating your DNS records with the updated information. During the time between the IP address changing and your update to the DNS your site will be effectively down. You will need to find out if amen.pt allow and have some method of ...


2

There are several tools (e.g., DynDNS) to update DNS records dynamically. If amen.pt does not allow to change your DNS configuration with an external tool you can create a fix CNAME record for your www address which point to the dynamic address. For example you can have a CNAME entry for www.example.com pointing to dynamic.example.com. You can then use any ...


2

You can use a dynamic DNS provider so you have an easy to remember (and fixed) URL for your machine. You will need to set up an account with a Dynamic DNS provider and install their update client on your VM. Set the client to run when the VM starts, so its new IP will be updated with the DNS server. A few free Dynamic DNS options: http://dyn.com/ ...


2

Don't bother with using your ISP's DNS. You're going to run a DNS server on your DC anyway, so just leave the DNS server configured to use root hints (as it is by default).


2

My current solution for this is webknocking where I first make a request to a special web page (optionally with my user/pass) that opens up the SSH gates for the IP that I request from. This is how I ssh into some of my servers from my phone. This keeps the extra software involved to a minimum so I could sit down at some cafe computer and authorize it for ...


2

There's a plugin in my evldns framework that can do this. The chaos demo will answer for queries for client.bind with the client's IP address, in either A, AAAA or TXT format as applicable.


2

Some of the content will be software that need to run reliably 24/7. Don't run it from home, then.


2

There isa good chance to do a reverse ptr naming analysis and check for a dynamic / dial in name pattern there. THis should help for internet. http://www.debouncer.com/reverse-dns-check has a short mention of that - most providers use recognizable naming standards for dynamic ip addresses. ...



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