I need to access the internet and a completely separate private network from a single Windows 7 computer. Each network is connected to my computer with its own network interface card.
The private network uses the '10.0.0.0' address space and provides its own DNS services. This network is not connected to the Internet and I do not want to connect it to the Internet in a way, other than being able to access both from my computer.
Basic routing is not that big deal. The problem is that no one wants to have to deal with IP addresses to get everywhere.
My default gateway points to the Internet and the default gateway is blank on the network interface for my private network.
My DNS server points to the Internet.
The show stopper at this point is figuring out a way to have my system use the DNS server on my private network for the DNS suffix used on my private network and still allow everything else to go out on the Internet.
Is there any way to make this work?
Bob
In the properties of the network interface card connected to the private LAN have you gone into the TCP properties and set a search domain and DNS server under the DNS tab? If you only need to hit a few hosts on the private LAN host file entries are also an option.
Related
I have a raspberry pi connected to my router with a local IP. I want to access the raspberry pi from outside (from another country) the local network via web browser. So, I have purchased a VPS which has its public IP.
Now how can I assign this VPS IP to the raspberry pi or any other local devices?
how can I assign this VPS IP to the raspberry pi or any other local devices?
That's not how the internet works.
In short, the VPS provider has a pool of IPs and it or its ISP is responsible for publishing routes to the rest of the internet, informing the rest of the internet how to route to those IPs.
You can't just "move" the public IP to your local network; the rest of the internet won't route traffic to it. It would be kind of like writing "1600 Pennsylvania avenue" on the front of your house - you wouldn't cause you to get White House mail, right? Because regardless of what you write there, the post office doesn't use it as a source of truth for mail routing.
There's a few of the options you have:
use ngrok to expose an endpoint to your local service. Ngrok's servers can proxy connections back to your local environment without it having to be online. This will be accessible by anyone on the internet, but is more obscure than an ipv4 address which can and will be easily found (see below). This is a quick and easy solution, and what I'd recommend in your case.
you already have the VPS. Run the code there instead of on the raspberry pi. It will almost certainly be more reliable and higher speed than your home internet.
you also already have a public IP, assuming your pi's local router has a route to the internet. the router is performing NAT so that devices "behind" it with only internal addresses can still communicate with the world. You can almost certainly configure your router to forward a certain port to your pi's internal IP address.
set up a VPN between the private networks, or between the individual hosts on the private networks. This is a lot of work and will require more knowledge of IP networking. If this interested you, I'd recommend looking at Wireguard (recommended) or OpenVPN.
Finally, keep in mind that unless you do something to make it not the case, your service, once on a public IP, will be accessible from the wide world. Since IPv4 space is pretty small by 2022 standards, and there are only 65000 some IP ports per address, it won't take nefarious parts of the internet long to find your service. You can't hide in the obscurity of an IPv4 network.
If your public address is ipv6 instead, those are essentially unguessable and much more likely to go unnoticed. Same thing is true of ngrok - since it has very large set of potential URLs, it's hard to guess. Still, I'd set up some sort of authentication in front of the service. It's just good practice, like locking your house.
Run this on vps:
echo "GatewayPorts yes" >> /etc/ssh/sshd_config
And this on your raspberry pi:
ssh -L remote-port:localhost:your-local-port your-vps.com
You will access server using: your-vps.com:remote-port
I am struggeling to connect to my home server that is connected via a Fritzbox router to the internet. I want to connect to the home server from outside of the home net, as it serves as a NAS and provides HTTP(S) services.
The problem is, that I don't understand how to connect to the server over the internet. My Fritzbox is connected to my internet provider via DS-Lite internet connection. As far as I understood, this means that my Fritzbox has no public IPv4 address and therefore the server is not reachable.
Is it still somehow possible to connect to the server?
Reading your question, I can see that there are multiple steps to solve this.
figure out if your internet provider allows you to have incoming connections
I do not know, what a ds lite connection is. Depending on your connection type, e.g. glass fibre, dsl, mobile and your provider incoming connections might be allowed or not. Also specific ports might be forbidden.
Enable port forwarding for incoming connections to your lan server.
Your fritzbox does not know, where to route the incoming connection to.
Make your lan server ip address static. Go to your fritzbox admin page and create a port forwarding rule and map data incoming on port 80(HTTP) and 443(HTTPS) to the lan server ip address.
You can read further here: https://en.wikipedia.org/wiki/Port_forwarding
Figure out the fritzbox's public ip address by checking out this website from within your lan. https://whatismyipaddress.com/
Connect to your server via http(s)://publicip
setup dynamic dns to have a public domain, which you can use instead of the ip address.
Usually private customer internet connections use dynamic ip addresses. So your ip address changes regularly. This is annoying, because you need to lookup the ip address before you can connect again. To avoid this issue, you can use a dynamic dns provider to give you a domain name, which you can use instead of the public ip address. Your fritzbox should have this kind of functionality already. If not, you can also configure it on your server with a cron job.
You can read further here: https://en.wikipedia.org/wiki/Dynamic_DNS
This provider is easy to use and for free: https://freedns.afraid.org/
use the dynamic dns domain name instead othe public to access your server from anywhere
Be aware, that having open connections to your local network gives attack surface from the public internet. So people might steal or delete data on your server or abuse it in other ways.
I've got difficulties in understanding NAT, NAPT, and port forwarding.
I got what NAT does. But when I try to describe port forwarding, NAT's concept becomes too vague.
I found NAPT and there is only a vague assumption that port forwarding is related to this.
Is port forwarding related to NAPT? If not, what is the difference?
NAPT stands for Network Address Port Translation and it specifically is in reference to be able to have many private IP addresses (ie - inside your building) all able to share a single public IP address (that would be assigned to your router from your ISP).
Think of it like this ... your public IP Address which is visible to the entire Internet exists on the ethernet port that you have connected to your Internet service.
Then, the other ports on your router / firewall / WiFi are all on a different network entirely - that's called your PRIVATE network.
In order to get all of those IP addresses on the inside private network to be able to have autonomous access to the Internet, your router/firewall does what we traditionally call NATting - Network Address Translation. So lets say that you and three other people access the same web site from inside your house... your firewall will see those requests to access that web site on your three different private IP addresses and it will assign to that browsing session, a unique session ID to that datastream and it will then go out and contact that web server but that unique session id rides with that datastream so that when packets come back from the web site the router knows which private IP address to send them to ... it acts as a facilitator for the internet packets going to and from the private IP addresses inside your building.
And a private IP address can be assigned to computers, tablets, cell phones, printers etc. etc.
PORT ADDRESS TRANSLATION is the exact same thing, only in reverse.
You do NOT want anyone on the Internet to be able to access any of the devices on your private network, so by default, your router/fireall denys any requests coming from somewhere on the internet that might be trying to access your public IP address.
But there are times when you have something running on one of your private IP devices ... like a gaming console, or maybe a remote desktop session that you need someone to access from the Internet ... what we typically do, is go into the routers configuration settings, and we create a PAT rule that says, "Allow any attempts to access my public IP address ON this specific port number and send those requests back to this specific private IP address." - in a nut shell.
NATting is when traffic is generated from the inside of your private network and it is going out to the Internet where PATting is for traffic coming FROM the Internet into your private network.
Hope that help clarify things a little ...
Edit: I should point out, that these days, when a device or some software running on your computer needs to allow traffic from the Internet to reach it, there is a feature in most home routers called UPNP (Universal Plug And Play) that, when enabled, devices like XBOX and other software can create - on the fly and without you having to give it any thought at all - PAT rules inside your firewall. UPNP was created because most home users don't remotely understand how network traffic works so trying to teach the non-tech person how to create PAT rules was becoming an issue, so UPnP was invented... it has its issues, but for the most part it's fairly reliable and nothing to worry about.
In my setup, I have a virtual machine in VMWare for development purposes using a bridged adapter. I can connect to it from another computer, but not from the host machine. My host is located at 192.168.1.16 and the guest is 192.168.1.10. Both can connect to the internet, but not to eachother. Upon pinging one IP from the other, I get a Request timed out from my host (Windows 10) and Destination Host Unreachable from the guest (Ubuntu Server 16.04.1). Is this a limitation of the bridged connector? Or is there some config that I have missed in making this happen?
EDIT: I am connected to my router using an ethernet cable, and the network is listed as a 'private' one
Can you connect to your host computer from the other (Non-VM) computer?
This sounds to me like your host computer is blocking incoming and outgoing pings which is probably a firewall issue. Try ensuring that you're on a "private" network instead of a "public" network.
The best way to check is by going to the Network and Sharing Center and looking for your bridged adapter. If it says Private network (or Domain network) That's not your problem. If it says Public network, you'll have to change it.
The easiest way to change it is to make sure that's the only network you're connected to and go to "Network" (Just type it in the address bar of any explorer window) A yellow bar will drop down telling you that you're not allowing file sharing on public networks. Click on it and you can get a box that lets you either share files on public networks (NO!!!) or change the network you're connected to, to a private network. (Yes!)
Hope that fixes your problem!
I've Created My Own FileZilla FTP server and I wanted to access it from my local Network.
So I've done that. but there are Two Problems I'm Facing right now.
Problem 1:- Can't connect ON PC which is connected with same Router But with LAN
My father's PC is connected with LAN And My Laptop is Connected with WiFi
So over WiFi with Any Device I can connect to my Server but when I try to connect my FTP to my father's PC (which is connected on LAN and with same Router)
I can't connect it
Problem 2:- Can't connect it Remotely
I want to access my this FTP server with Internet so that I can connect it with Remotely. I've referred on so many websites. but Can't Find a complete step by step Tutorial... I've Configured my FTP but still Can't connect it with Internet for remote access.. plzz help me out.
Thanks In Advance...
Problem 1: As you say wifi-connected devices can access the server, so there are different cases you shall check, as where my experience reaches, these two might be the reasons:
Is client/network isolation enabled in your router's wifi settings? This can be checked and solved by accessing your router's management console.
Is your father's PC on a different subnet (XXX.XXX.SUBNET.XXX)? If so, you have two choices, changing all devices' subnet masks to 255.255.0.0 (This might be applicable in your router's DHCP settings too.), or changing your father's PC's IP address to match the local subnet.
Problem 2: This has two solutions, both need resources that might not be worth it, but yet:
Connect to a virtual private network on the cloud (VPN), this way, your PC will become a part of a private network. You can connect other devices from other networks which can access the VPN server to the private network, so your PC and the device will now be in a same network like in your home network.
Some ISPs provide static IP addresses or internet plans with static IPs. Check if the internet plan you use is so, if not, you might be able to rent an IP address from them. With static IPs your network can be accessed from the internet. Anyway there might be a bit of effort needed to ensure that your PC is accessed in the first place.
And just letting you know, this question must be moved to the Super-User Forums.