![]() It is known and stored in a publicly searchable database. Various Internet companies like Shodan.io, censys, expanse and whatever that continously scan the whole public IPv4 range have already enumerated your server and it's public IP. Let's assume your domain already exists for a while and you have not used cloudflare in the past. Now comes the tricky part, which is not that crucial but may allow an attacker to bypass cloudflare and therefore the protection it provides (WAF, DoS, Bot protection). So the request will go trhough cloudflare and then to your router's WAN IP address. So your site visitor will resolve to a Cloudflare IP address, as you've configured that with the orange cloud symbol on cloudflare. So far so good.Īny external user that now tries to access your site will first resolve your domain, as computers cannot work with names. Here, you setup your DNS and enable the orange cloud. This is done in the Cloudflare web panel. Usually, you'll configure your domain to be routed by Cloudflare. Only allowing Cloudflare IP addresses is a tricky one, especially to test for. I would not advice exposing it to the Internet. ītw, Grafana seems to be a well known target for many attacks and regularly releases critical fixes for various identified CVEs. If this is not possible for your current IT architecture, there may be an alternative using iptables and the 'DOCKER-USER' chain. Are you using a well known hypervisor or alike or just a plain Linux distro with docker? Unraid/Openmediavault etc. Since I am using Proxmox, I was able to set a firewall rule on VM level that pre-filters what packets can ultimately arrive at NPM running inside the VM as docker container. I've solved the issue by defining an IP whitelist in front of NPM. It is currently not possible to use an effective access list for IP whitelisting when changing the HTTP header to define where the real visitor's IP adress is specified.Īs you've noticed, the logs will now correctly define the real visitor's IP and not the true source IP of Cloudflare from where the packets are really coming from. Good question! Unfortunately, you've found a limitation of NPM. r/HomeNetworking - Simpler networking advice. r/pfsense - for all things pfsense ('nix firewall) Might be able to find things useful for a lab. ![]() r/hardwareswap - Used hardware, swap hardware. r/buildapcsales - For sales on building a PC r/linux - All flavors of Linux discussion & news - not for the faint of heart! Try to be specific with your questions if possible. r/linux4noobs - Newbie friendly place to learn Linux! All experience levels. r/datacenter - Talk of anything to do with the datacenter here We have an official, partnered Discord server which is great for all kinds of discussions and questions, invite link is clickable button at the top of the sidebar or right here.Keep piracy discussion off of this subreddit.Īll sales posts and online offers should be posted in /r/homelabsales.īefore posting please read the wiki, there is always content being added and it could save you a lot of time and hassle.įeel like helping out your fellow labber? Contribute to the wiki! It's a great help for everybody, just remember to keep the formatting please. ![]() Report any posts that you feel should be brought to our attention. We love detailed homelab builds, especially network diagrams! Post about your homelab, discussion of your homelab, questions you may have, or general discussion about transition your skill from the homelab to the workplace. Please see the full rules page for details on the rules, but the jist of it is: Labporn Diagrams Tutorials News Subreddit Rules New to Homelab? Start Here! Homelab Wiki HomelabSales ![]()
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