How to interconnect 4+ computers on separate private networks with an overlay/mesh/vpn? [closed]
No access to public-facing node or ability to modify firewalls/NAT. Think road warriors.
My original question was closed as off-topic.
Category Archives: NAT
Are these iptables rules safe for a SBC connected directly to the internet?
I read some posts which say Raspberry Pi connected directly to the internet is unsafe and various precautions should be taken. My main purpose is to avoid any attacks/breaches.
Usage of the Raspberry Pi:
As a router
Access… Continue reading Are these iptables rules safe for a SBC connected directly to the internet?
Can a magical packet traverse thru a NAT?
In the case of “normal” tightened security where no DMZ, Port Forwarding is setup is it possible with any of the available NAT traversal methods for a magic packet to traverse thru a NAT from the outside network (Internet) an… Continue reading Can a magical packet traverse thru a NAT?
Remote code execution over WAN
Say I am on a a computer behind a NAT and I want to execute an RCE exploit on another computer behind a different NAT(note that no ports are forwarded to the victim’s computer on his/her NAT) Could I then run an exploit like … Continue reading Remote code execution over WAN
How to block all inbound traffic from a specific Internet address or subnet using TomatoUSB router software (LINUX based)
I’m not trained in Linux, but I think I found the solution to my problem documented, but it is not working as expected. I am NOT an iptables guru, I’m learning as I go.
A Russian IP is trying to hack my network, especially an email serve… Continue reading How to block all inbound traffic from a specific Internet address or subnet using TomatoUSB router software (LINUX based)
Is public and local IP addresses of computer behind NAT a sensitive information? [duplicate]
This question already has an answer here:
How bad is the leaking of Internal IP addresses through external DNS
2 answers
We need 3,000 devices to be connected with internet [on hold]
I need to make 3,000 devices use internet in one big hall.
Do we need multiple public internet IPs in order to make them use internet at the same time? or Can we have just one public internet IP having 3000 devices connecte… Continue reading We need 3,000 devices to be connected with internet [on hold]
How safe is NAT in keeping my private network private
To extend on How can a webpage scan my local, internal network from the Internet? how safe is my private network against possible threats like DoS attacks, spoofing attacks, revealing info about my private network services et… Continue reading How safe is NAT in keeping my private network private
Where does network address translation happen in a Dual Firewall Architecture? [on hold]
I am analyzing a network architecture. I want to be able to visualize IP addresses in a map (it is called GeoIP). The problem is that the IP addresses are private. So my idea is to correlate private IP addresses with the corr… Continue reading Where does network address translation happen in a Dual Firewall Architecture? [on hold]
Is my router’s IP address really public?
I have a common home network consisting of a wireless router with many devices connected to it. I understand that because of NAT, all devices attached to the router connect to the outside of it via its IP address, with varyin… Continue reading Is my router’s IP address really public?