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.
Related
I am using (airtel xstream fiber) connection and trying to do port forwarding. I forwarded port 3000 of wan and direct it to my system ip address 192.168.1.2 on port 3001.
Node server is running on my system on port 3001. And I can access my hello world website locally using 192.168.1.2:3001. But when I am trying to access using public ip, it show this error code "ERR_CONNECTION_TIMED_OUT".
Also, I found my router port 3001 is open using online port checking tool/website.
So, Can anyone please tell what could be reason behind this ? Is this the problem with windows.
You first need to check what ports are open by your ISP. If your ISP is giving you a local ip at the router. Basically, creating a ppp connection. It may be using a cg nat. In that case you need to buy a static ip, without that none of the traffic will be Directed to your router. Let me know if you find something, I'm currently looking to get xstream airtel as well.
No there is no need for static IP to be access server remotely. As of now, What I see is airtel allocates new ip every 24 hr or when router got disconnected. To access your server remotely you can do two things. First one is more secured.
Change Primary IP adress of your airtel router and use Portforwarding so that its port 80 will be free for you.
Enable DMZ and point it to your local server IP. [192.168.X.X]. In this case all of your ports of the device are exposed to internet. If you want to be secure. Make sure add another router between server and airtel router and enable port forwarding.
But in this case there is a catch, When you try to access your local website using public ip (which you can see on google search) it will redirect you to airtel router panel. But when you try to access it using other device (not server otherwise server will get disconnected) connected to internet using other network(other that your current airtel router like JIO sim, Airtel Sim, etc), It will work excellently.
To get rid of dynamic ip use no-ip services. Its website will help you more. Basically, It is dynamic dns server where you will get free domain. That will get update regularly while its service running on your system. To use other dns provider service like godaddy you must need an static ip.
I have a router os installed on a virtual server, with 3 interfaces:
lan-192.168.1.1/24
wan-192.168.2.1/24
wifi-192.168.3.1/24
I have a PPOE client to connect over WAN to ISP and get static public IP
x.x.x.x
I have a windows server with DNS, HTTP services on LAN interface, and 1 wireless access point on WIFI interface.
I have created rules for block incoming connection from internet, except 80,53,...
I have created dst-nat from my public IP x.x.x.x to local server IP.
Another dst-nat from LAN to server LAN IP address.
Also SRC NAT to masqurade, LAN and WIFI connections to server.
Another SRC-NAT masqurade for access internet.
Also mikrotik DNS service used to get records and catch from my local server DNS service.
All things work good, until, I want create hotspot service on WIFI interface.
dynamic firewall filters and NATs destroy all things work.
Scenario is access WIFI users to internet by authentication and access local server locally and free.
Also internet access for lan users free.
Also public web access to my server from internet.
Thanks in advance!
NOTE: Skip to TLDR if you just want the direct answer.
This configuration has been made far more complicated than necessary. I'm going to write this up from memory because I don't have an unused router handy at the moment, but this should work.
I'm going to make some assumptions here:
You do not want anyone from the WAN or PPPoE to be able to reach your LAN.
You don't want anyone from the WIFI to be able to reach your LAN except for HTTP or DNS.
You FULLY intend to circle back once everthing is working and ENABLE HTTPS on your server. THIS IS IMPORTANT!!!
First, set up everything to work without restriction. No rules except for a single masquerade entry. You want to masquerade all traffic NOT destined for 192.168.0.0/16. This rules is all you will need. the DST-NAT rules are unnecessary unless you want to provide service to traffic on the PPPoE interface.
Next, add the following firewall rules under the FORWARD chain:
ACCEPT all Established and all Related traffic (no other restrictions).
ACCEPT FROM 192.168.3.0/24 TO TCP 80,53,443 destined for your Windows Server IP address.
ACCEPT FROM 192.168.3.0/24 TO ICMP destined your Windows Server IP address.
ACCEPT FROM 192.168.1.0/24 TO !192.168.0.0/16. This allows Internet access for the LAN.
ACCEPT FROM 192.168.3.0/24 TO !192.168.0.0/16. This allows Internet access for the WIFI.
DROP everything else.
Make sure everything still works. These basic rules will give you at least some protection on your LAN from random people connecting to your WIFI. This way, if you ever disable your Hotspot to allow unrestricted access through your Wifi, you're LAN is still protected.
* TLDR *
Now you can set up your hotspot. The most important part is on your Walled Garden IP list tab, under IP -> Hotspot. You must add entries here allowing access to whatever servers you want to function before someone logs on, specifically your server's HTTP, DNS, etc services. The Hotspot will translate these into automatically-created firewall rules for you.
Finally, I would remiss if I didn't tell you that this is not a complete firewall setup, and there's all sorts of stuff that can go wrong here if things are not implemented properly. My email is in my profile here if you are interested in paid assistance.
I use a static IP connection, Configured to TPLINK router.
I have a local server running which i can access from my network, but i want it to be accessed outside network.
So I did port forwarding. and its Successfully running.
Now the problem is :: The IP address of my WAN is also a private address like 10.10.X.X, so when am entering http://10.10.X.X, i can access my site, but not outside my network. Please guide me how to fix this?
If your WAN address is a private address, your ISP is using CGN. This is becoming more common since the RIRs have, or soon will, run out of public IP addresses to assign to ISPs. It sounds like your ISP has run out of public addresses and needs to use private addresses for its residential customers, reserving its remaining public addresses for its business customers which are willing to pay for public addresses.
Basically, your ISP is using NAT, too. You would need to have the ISP forward your port on its NAT router, but the odds of that are zero since it probably has a policy you agreed to to not host servers on your residential LAN (buried in the fine print of the ISP agreement). This situation will play out more and more over time.
You have to use the "Virtual Server" settings. Port triggering is used for.
Once the modem router is configured, the operation is as follows: 1. A local host makes an outgoing connection to an external host using a destination port number defined in the Trigger Port field. 2. The modem router records this connection, opens the incoming port or ports associated with this entry in the Port Triggering table, and associates them with the local host. 3. When necessary, the external host will be able to connect to the local host using one of the ports defined in the Incoming Ports field.
It is not used for incoming connections which are triggered from outside!
Of course, to have it working you have to have an application listening on that port not only having the firewall on Windows allowing the port.
After you set up the "Virtual Server" a port scanner should show you the port is open (even without having a running application listening) - it will try to port forward it. I use ShieldsUp for testing.
I am trying run TCP Listener in internet PC, So its get dynamic IP address from the internet provider.Each time the IP address was dynamically changed. So Its need static Ip for the connection. Static Ip cost is very high. So How can i know the ip changed in my PC from the internet provider or else any other solution?. Any notification c# api for dns ip changed.
If you need an outside client to connect to your dynamic IP, you could use dynamic DNS updates. Google for dyndns, for instance. If you really want a static IP, use IPv6. You'll (probably) need to create a tunnel for that. There are a few providers that provide that service free of cost.
I am at a large University, with servers set up on the Univeristy network. The network has internal (10...) IP addresses, and external (129...) IP addresses. I have a ColdFusion-based business process which FTP's data from an external server.
The server on which the ColdFusion instance is based has several (about 10) IP addresses associated with it, both internal and external. It has one primary address, which has been, until recently, external.
Using Wireshark, we have been able see which IP is used, and it is never the primary, but other than that, does not seem to follow any logic.
We recently changed the primary IP for the server to an internal address, to comply with new University-wide security policies, and the FTP connection from Coldfusion stopped working. Using Wireshark, we've confirmed it is going out on one of the internal (10...*) IP addresses (not the primary).
Is there a way to control which IP ColdFusion uses for an FTP connection, either through system configuration, or programmatically?
Code for the FTP call:
var ftpService= new ftp(
username = partnerConfig.sftpLogin,
connection = "MyConnection",
password = partnerConfig.sftpPw,
fingerprint = partnerConfig.sftpFingerprint,
server = partnerConfig.sftpServer,
secure = "yes"
);
var result=ftpService.open();
var result2=ftpService.listdir(directory = partnerConfig.inFolder, name="dirlist");
var result3=result2.getResult();
EDIT: My server guy tells me that this University is fairly unique in how it configures the subnets. NO firewall exceptions are allowed from the 10.* subnet. The "Public" IP's are not public by default, simply the ones which are capable of having exceptions.
FURTHER EXPLANATION: It comes down to the Rules and IP addresses the main IT org at the university set up. the 10.x.x.x IPs are never allowed access outside the university ("internal"). 129.x.x.x IP, may have firewall exceptions ("external"). If I type ipconfig (it's Windows), I see about 10 static IP addresses, half of which are 10.x.x.x, and half of which are 129.x.x.x. When the "primary" IP for the machine was a 129.x.x.x address, Coldfusion chose one of the OTHER 129.x.x.x addresses for the outgoing IP for the connection. With the "primary" IP switched to a 10.x.x.x IP, ColdFusion is choosing one of the OTHER 10.x.x.x addresses for the outgoing connection. My choices, as far as I can tell are 1) Switch the primary back to a 129.x.x.x for the server; 2) Move the site to a different server with a primary of 129.x.x.x, and keep other sites on the server in compliance with the new policy; 3)See if I can figure out how to control which IP Coldfusion chooses from the 10 static IPs on the server.
Our admin figured it out. We needed to add a static route to the server, so that whenever ColdFusion (or any application) tries to connect to the specific destination we were FTPing to, it goes through a specific outgoing IP address.
This was not something I was familiar with, but a quick search gives the basics: http://technet.microsoft.com/en-us/library/dd469825.aspx
You have an internal IP address and you are not sure what the external is? This sound like a network bridge issue. What you are looking for is FTP proxy or some tool that associates an externally assigned IP to an internally assigned IP for port 22 (or whatever you set your port to). Look at: http://wiki.squid-cache.org/Features/FtpGateway
FTP reverse proxy
It sounds like your IPs (even internally may not be static)...or maybe it just feels that way. Make sure your internal IP is static.
Read about FTP port forwarding: Here are some port forwarding guides.
Other keywords FTP bridge, FTP one-to-one mapping, among others.
Good luck.
I had a similar question regarding the cfmail tag:
Force cfmail tag to send from a specfic server IP address
Unfortunately, I didn't get an answer that worked. ColdFusion seems to pick (seemingly at random) which source IP address is used.