Cloudflare assists in limiting or obstructing hacking and brute-force attacks. Register today ->, Step 1 Generating an Origin CA TLS Certificate, Step 2 Installing the Origin CA Certificate in Nginx, Step 3 Setting Up Authenticated Origin Pulls, the Ubuntu 20.04 initial server setup guide, our guide on how to install Nginx on Ubuntu 20.04, how to mitigate DDoS attacks against your website with Cloudflare, Our introduction to DNS terminology, components, and concepts, Step 5 of How To Install Nginx on Ubuntu 20.04. This is often caused by security or firewall software and happens if the origin server has directly refused Cloudflare's proxy request. Select your domain On the right pane, scroll down to Get you API token Click on Create token, select Create Custom Token and use the following settings: 6. Cloudflare will ignore self-signed certs, so your visitors see the green lock and you get end-to-end encrypted traffic. Our guide on, An Nginx Server Block configured for your domain, which you can do by following. . set_real_ip_from 173.245.48.0/20; 2. and our ingress: - hostname: xxx.yourdomain.com service: https://192.168.1.x:443 #npm originRequest: noTLSVerify: true. It's common for organizations to serve websites with Nginx, a popular web server, with Cloudflare as a CDN and DNS provider. You point your DNS to their servers and they transparently proxy traffic to you. Now our nginx logs show the real IP address of requests instead of Cloudflares servers. Ask Question Asked 4 years, 3 months ago. Visit SSL -> Origin Certificates- click create certificate. Leave settings as is, click create. Solution. I have a private server with a static IP running nginx, which acts as a reverse proxy for a website that I do not own. Hi guys, I've just spent the last day or so having a play with Nginx Proxy Manager (NPM) running alongside Cloudflare. We currently run four instances of NGINX on each edge machine (one for SSL, one for non-SSL, one for . [1] https://support.cloudflare.com/hc/en-us/articles/200170706-How-do-I-restore-original-visitor-IP-with-Nginx-, [2] Note that these are the ranges from https://www.cloudflare.com/ips-v4, Your email address will not be published. HTTP-Proxy: Cloudflare ersetzt Nginx mit Rust-Eigenentwicklung Mit Nginx stie Cloudflare an technische Grenzen und konnte die Software kaum erweitern. Nginx subversion commit failure. set_real_ip_from 190.93.240.0/20; Copyright 2000-2022 M2N Limited E. & O.E. cloudflare tunnels support wildcard hostname (*.mydomain.com) in the ingress config section. company number 03997482, registered in England and Wales. We could no longer get the performance we needed nor did NGINX have the features we needed for our very complex environment. Its a fantastic content delivery network with inbuilt security, I love it. Yes Go to the tab "SSL Certificates" Click on "Add SSL Certificate" Enter the domains "*.example.com, example.com" Select "Use DNS Challenge", Cloudflare, and set API Key Set Propagation Seconds (450 Seconds) (Optional) MBennGit added the bug label MBennGit closed this as completed on Feb 18 ahmedelemamn mentioned this issue on Apr 18 to only allow access to select services, i.e., the VPN and emergency SSH, but what about services that are intended for the public like the nginx server? If you use Cloudflare, AWS Cloudfront, Incapsula.com, Google PageSpeed Service . The first layer of defense is obviously a firewall (with a whitelist!) This is assuming you already have a domain setup in Cloudflare and have swapped out the DNS servers for Cloudflare DNS servers. Hello, Greetings from InterServer Support. The purpose of this reverse proxy is to provide me an easy way to access this site from the server's private IP address, particularly on systems and devices where I wouldn't be able to perform any . Keep in mind, this is all FREE. My guess is that it has to do with the use of location and/or proxy_pass, but digging through the docs didn't lead to any deeper insights. "In addition to creating the DNS records, you will have to adjust Cloudflare's SSL settings to avoid indefinite redirects.". home assistant os. https://support.cloudflare.com/hc/en-us/articles/200170706-How-do-I-restore-original-visitor-IP-with-Nginx-, Alice requests http://1.2.3.4:80 with Host: geek.cm. 5. MondayFriday: 9:00AM5:00PM I have trouble configuring SSL with reverse proxy. Home. One Ubuntu 20.04 server set up by following, Nginx installed on your server. set_real_ip_from 141.101.64.0/18; He continues: "We chose NGINX primarily for the performance. set_real_ip_from 197.234.240.0/22; If youre familiar with running a web server, youre probably asking yourself, But if Cloudflare is requesting all of the pages, then arent my logs full of Cloudflares IP address? Updated on January 11, 2022, deploy is back! Why use Cloudflare? set_real_ip_from 103.31.4.0/22; I added two "A" entries to Cloudflare with one proxy enabled and the other not. When your website traffic is routed through the Cloudflare network, we act as a reverse proxy. Nginx reverse proxy and cloudflare - Send country code to backend app. 0. This will allow you to set multiple zone's you wish to update. Nginx/Apache: set HSTS only if X-Forwarded-Proto is https. As Cloudflare has scaled, we've outgrown NGINX. 3. set_real_ip_from 162.158.0.0/15; Powered by Xenforo, Hosted by Nimbus Hosting, Original design Critical Media Ltd. The Add dialog will pop up and information needs to be input. NGINX Proxy and Cloudflare. That may be an edge case, and some or all of the requested features may not warrant implementation for what nginx-proxy-manager is looking to provide. 5. If no problems were found, restart Nginx to enable your changes: sudo systemctl restart nginx Now go to the Cloudflare dashboard's Crypto section and change SSL mode to Full. I dont know. To fix this, you need to configure remoteip module. github.com/tiredofit/docker-nginx-proxy-cloudflare-companion About This builds a Docker image to automatically update Cloudflare DNS records upon container start. - AD7six. It should show something like this: Add new proxy host. After lots of troubleshooting, . If you found no problems, restart Nginx to enable your changes: sudo systemctl restart nginx Now go to the Cloudflare dashboard's SSL/TLS section, navigate to the Overview tab, and change SSL/TLS encryption mode to Full (strict). Hi! max-age=seconds Indicates the response is stale after its age is greater than the specified number of seconds. Using docker on a linux machine (ubuntu server) I had everything installed in a few minutes, but trying to iron out the connections between the two, proved troublesome. Don't miss out! set_real_ip_from 188.114.96.0/20; Turn HTTPS On and create a SSL Cert with Letsencrypt. I'm using Cloudflare as a DNS server. In this tutorial you will secure website with Nginx and Cloudflare, preventing any malicioud requests from reaching your server. Many Cloudflare customers and users use the Cloudflare global network as a proxy between HTTP clients (such as web browsers, apps, IoT devices and more) and servers. A simple brute force of the IPv4 space making requests with the appropriate Host header to each IP address will eventually reveal the origin address. Dec 21, 2014 at 12:49. . Under the My Profile dropdown, click Account Home. A quick step by step tutorial on how to set up Nginx Proxy Manger using a Digital Ocean Droplet and fixing any 502 Gateway Errors that might arise. This website uses the TMDb API but is not endorsed or certified by TMDb. However the issue does not occur if I bypass the Cloudflare proxy, and request from the server directly. The set_real_ip_from lines indicate servers that we trust to send the real client IP address. This work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License. How Cloudflare Worksand mediocre ASCII art diagrams. There are countless sites that put up Cloudflare and expect that no one will be able to find their origin address. Or if youd like to make sure you never miss a Cloudflare IP change, see this very excellent automated solution to the above! The real_ip_header line will read the header CF-Connecting-IP to any request coming from Cloudflare and set the client address to the value contained in that header. This is another quick howto to get your Nginx web server working properly with Cloudflare. $ type nginx Step 4 - Cloudflare helper scripts to deal with the Forwarded header for Nginx Revers proxy service providers such as Cloudfront, Fastly, Cloudflare, and others have numerous IPv4 and IPv6 addresses/Classless inter-domain routing (CIDR). Nginx Cloudflare, AWS Cloudfront, Incapsula & PageSpeed IP addresses: Note: you may need to whitelist the IP addresses for the proxy in CSF Firewall for Cloudflare. We'll also have to add a specific header tag since Cloudflare seem to use a non-standard proxy header (booo Cloudflare!). Thus, its important to have a whitelist in place that only allows traffic from Cloudflare or other trusted hosts. By mgadbois, January 24 in Security. Step 2 Clcik on Access > Tunnels and give your tunnel a name. I have my own domain name that is proxied by cloudflare, do I have any extra steps that I need to do to improve security ? real_ip_header CF-Connecting-IP; And your logs should now be full of the proper origin IP address. Maintainer Dave Conroy Table of Contents Ive written about the very excellent Cloudflare CDN before. Unraid OS 6 Support. For more information, please see our set_real_ip_from 204.93.240.0/24; Server: cloudflare-nginx. Notify me of follow-up comments by email. My original plan for today's video was to show how to install Uptime Kuma, but I've been getting multiple comments saying that people are having a hard time . Customers who are interested in building the mod_cloudflare package can download the codebase from GitHub. If you allow HTTP, then someone MITMing the connection between Cloudflare and your server could request a valid certificate for your domain and successfully sit behind Cloudflares Full SSL mode. Set up cloudflare tunnel and in the "cloudflared" config file, point the urls to your npm instance. . Why does it matter if the cert is valid if everythings still encrypted? set_real_ip_from 204.93.177.0/24; Cookie Notice As a reverse proxy that proxies traffic between the Cloudflare network and servers on the Internet, Nginx has been a vital part of Cloudflare's architecture - until now. Toggle ON Use a DNS Challenge and I Agree to Let's Encrypt Terms of Service. For Cloudflare to prevent IP leaks you also want to enable Cloudflare Authenticated Origin Pull certificates on your Cloudflare Full SSL enabled sites.. Depending on your isp in many cases piping it through cloudflare can give real world peering/latency advantages and also gives you the added benefit of concealing your true ip address to the end user. The next steps are: Create and use Cloudflare or 3rd party SSL certificate: Under Crypto menu, go to Edge Certificates and be sure you've got a universal certificate. Create the Origin certificate. It already works with other docker images (i.e. Privacy Policy. I have the geoip option checked in the cloudflare dash and it adds a CF-IPCountry header to request headers but I am unable to pass this to my . Prepare Your System for Nginx Proxy Manager Set up a Static DHCP Mapping in OPNsense Install Docker Install Docker Compose Create Docker Compose File Deploy the Docker Container Log into the Nginx Proxy Manager Administration Determine Hostnames for the Proxy Host and Services Set up the Reverse Proxy Hosts Quick Fix Ideas Check your origin web se There is also a summary for all 5XX error codes: Required fields are marked *. Make sure the proxy is enabled! I'm really combining two separate issues here, but allow me to explain further. Your email address will not be published. Web server returns the content to Cloudflare. Hi guys, I've just spent the last day or so having a play with Nginx Proxy Manager (NPM) running alongside Cloudflare. For a better experience, please enable JavaScript in your browser before proceeding. Modified 7 months ago. This connection comes from a cloudflare IP (because it's forwarded by cloudflare's proxy) but contains the client IP in the headers. The tutorial is very good by the way, but one of the messages in there was that with cloudflare you need to set the domain SSL/TLS encryption mode to Full. I'm currently using LogDNA for gathering Nginx logs. Thats where a reverse proxy comes in. nginx proxy redirecting request to different proxy. This could be because of the configured DNS records, mainly A record is incorrect against the value you have under Cloudflare and actual hosting server or the server itself is finding some technical trouble while you were trying to access website. Of course, NGINX is still a part of our stack, but the code that handles HTTP requests goes well beyond the capabilities of NGINX alone. Reveal real IP for Nginx behind a reverse proxy. Go to Cloudflare.com and click on your domain name. I cant think of a threat model where an attacker is stopped by Full vs. Full (Strict). I have few selfhosted apps and docker services and do not intend to . Putting the public IP will work too. Super Simple Cloudflare and Nginx Proxy Manager Setup Using YOUR Domain 75,697 views Aug 19, 2020 You want to expose your self-hosted services but want to do it securely using your own. Out of the box Nginx Proxy Manager supports Let's Encrypt SSL auto creation and renewal. You can follow, A registered domain added to your Cloudflare account that points to your Nginx server. Once generated, make sure you save it for the next steps. In our next episode, we will be installing and configuring Nginx Proxy Manager to use Cloudflare's DDNS service and setting a custom Domain. Setting no-cache also bypasses cache. . Stellt man die Zeit auf 12h hoch, dann funktioniert es. set_real_ip_from 198.41.128.0/17; Nginx has given us the ability to handle a larger number of requests without scaling up in hardware quite so quickly. #Permalink 0 0 MattyIce posted this 28 December 2021 You point your DNS to their servers and they transparently proxy traffic to you. Followers 1. The difference is that their network can handle DDoS and do helpful things like serve HTTP sites over HTTPS. For anyone that is using cloudflare and nginx proxy manager to pipe plex data (which is technically against tos but many people have had this setup for years with no issue as long as caching is disabled via page rule) or any service via this method normally you would see cloudflares ip address. Compare Cloudflare vs NGINX. Securing WordPress from Brute Force Attacks by Country Blocking on Nginx, Anonymous FTP on Ubuntu 12.04 Server with VSFTPD, How to Install WordPress with SSH and Nginx, Monitoring Tor Usage in Azure Sentinel, ASC, MDATP and ALA, Strongswan IPSec (Including Cryptomap) to Microsoft Azure Virtual Network Gateway. For Domain Names, put *.myserver.com, then click Add *.myserver.com in the drop down that appears. Since this is my home lab and its running on my home connection, I definitely prefer to cut down on the number of people able to poke at things. 0. nginx load balancer rewrite to listen port. This is OK for testing, but not really acceptable for anything that requires any security because even though the end users connection to Cloudflare is encrypted, Cloudflares connection to your origin is still HTTP and that means plaintext. I have found out that in plex if you turn relay cache off and add this line of code to the advance section of the proxy host in nginx proxy manager it will push the clients real ip address to plex even though it is going through cloudflare as a cdn. When youre configuring a web service for security behind some sort of proxy (e.g., Cloudflare), you should always restrict the incoming connections at the firewall. Everything is finish And I'm trying to get to my website with the subdomain. So, i create on Cloudflare a CNAME and set On WITH PROXY On the Proxy Manager i type in my IP and the Port. 1. Mar 29 kiesow changed the title to (erledigt) nginx Proxy Manager + Cloudflare Tunnel + Cloudflare Access. Address [ Alice ] <-> [ Your web server with public IP address ], With Cloudflare (or similar reverse proxy service): It's also not hard to imagine a time where the role of NGINX diminishes further. Next Create Token (at the top) Create Token You could deny new Users and . The No. set_real_ip_from 103.21.244.0/22; The initial installation was pretty easy. Normally: set_real_ip_from 108.162.192.0/18; Cloudflare has "outgrown" Nginx and ended . My goal as an End User is to configured nginx-proxy-manager with full protection behind Cloudflare. You will need to edit the main nginx.conf and we'll have to put in a list of IPs which will be connecting to your webserver. 2. You must log in or register to reply here. Posted January 24. What I have: Proxmox installed with 3 containers - 2 containers are with websites and 3rd is a reverse proxy. What does that mean? document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. Firefly III docker image). It will bring you to the main page with some graphs and "Quick Actions" at the top on the right. Required fields are marked *. Setup: pi 4b. Ideally, you want the traffic encrypted between both connectionsthe end user to Cloudflare and Cloudflare to you. set_real_ip_from 199.27.128.0/21; Add Cloudflare Root certificates authorities (optional) Install your origin certificate with Nginx With Cloudflare, you can generate an origin certificate, it's a free TLS certificate signed by Cloudflare and you can install it on your web server to secure connection between your server and the Cloudflare proxy servers. Log into Nginx Proxy Manager, click SSL Certificates, then click Add SSL Certificate - LetsEncrypt. This informs Cloudflare to always encrypt the connection between Cloudflare and your origin Nginx server. Age is defined as the time in seconds since the asset was served from the origin server. Under that you need to click Get your API token. Generate Cloudflare API Key Click on "My Profile" - top right of console Click on "API Tokens" - left side Click "Create Token" Alice requests http://cloudflare_ip:80 with Host: geek.cm, Cloudflares servers request http://1.2.3.4:80 with Host: geek.cm. Creating. Cloudflare DNS tab 2. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. This informs Cloudflare to always encrypt the connection between Cloudflare and your origin Nginx server. Its certainly not easy to track down a misconfigured site behind Cloudflare, but it can be done, especially if the attacker is only looking for one or two domains. If you don't control the domain, no (barring asking the domain's admins to do an exemption if you've got a legit use and they're friendly) - CloudFlare's protection does a variety of checks to detect if a real browser is accessing it, which your nginx install won't pass. Nginx Proxy Manager Setup and a fix for your 502 Gateway Errors | The Smarthome Book. Restart nginx 1 nginx - s reload At this stage, you can login to cloudflare, point IP of the web site to reverse proxy server IP address. "NGINX is core to what Cloudflare does. In this case, its going to add a layer of obfuscation to my origin address. Quote. Start new topic. [ Alice ] <-> [ Cloudflare ] <-> [ Your web server ]. I recently decided to do a fresh install of home assistant os and start over from scratch. Addon: nginx proxy manager. Well also have to add a specific header tag since Cloudflare seem to use a non-standard proxy header (booo Cloudflare!). How you setup cloudflare/nginx has no bearing on that, the html contents will determine if there are such errors reported. Security. Cloudflare certificate and tunings. Step 1 Sign into Cloudflare and click over to Cloudflare Zero Trust. New York, NY 10001, Hours Trying to keep track of the random stuff I do. I have Proxmox running and have recently installed nginx lxc. There are many reasons that youd want to keep your site behind a reverse proxy: Internet scumbags, whitehats who scan the internet and then sell information on your open ports and services, DDoS protection, etc. And then, fill in the required fields as follows: As the proxy host is located on the same machine, I prefer to put its private IP. Black Adam, Videodrome & Raw Deal 4K, Gangs of London 2, Interview with the Vampire & Hellraiser. There is one limitation - you can create certificates only for specific domains/subdomains directly. Cloudflare has long relied upon Nginx as part of its HTTP proxy stack but now has replaced it with their in-house, Rust-written Pingora software that is said to be serving over one trillion requests per day and delivering better performance while only using about a third of the CPU and memory resources. This may be a good place to introduce yourself and your site or include some credits. However, with Always use HTTPS and Full (Strict), Cloudflare will require a valid cert from the origin which presumably the MITM doesnt have, so they cant receive unencrypted requests, cant request a certificate, and cant MITM the traffic. Hello! By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Free Cloud Delivery Network is available. Since were using Cloudflare, arguably we dont even need a LetsEncrypt cert since Cloudflare can proxy HTTPS to an HTTP backend and theyll issue a SAN cert for your domain. 80 and 443 forwarded to pi ip. Specifically, Cloudflare tried to connect to your origin server on port 80 or 443, but received a connection refused error. You will need to edit the main nginx.conf and well have to put in a list of IPs which will be connecting to your webserver. What about my analytics? or How do I know whos sending all of these LFI/RFI/SQLi requests? Fortunately, Cloudflare documents this process[1]and its basically a cut-and-paste job. It may not display this or other websites correctly. Nginx subversion commit failure. Update (2018-01-08): After talking to a friend at Cloudflare, there is a scenario where Full (Strict) could be valuable: If you already have a valid certificate for your domain and you enable Cloudflares Always use HTTPS option. Black Ops 3 NAT Type Strict & PS4 NAT Type 3 with pfSense Fixed! Although its rare, Cloudflares IP addresses can change, so having a daily cron job like the following may be useful: With these rules in place, we dont have to worry about ending up on Shodan or Censys since any traffic that doesnt originate from Cloudflares reverse proxies will be dropped. If you want to create wildcard certificate you will need to use DNS Challenge. Login to https://dash.cloudflare.com/login Click "Add Site" > Add your domain name Select "Free" Follow the steps listed to make the NS Changes Once the complete you will have your domain name good to go. Normally: By using a system like Cloudflare or Nginx that acts as a middleman between the client and the server, the DNS lookup will return the IP address of the middleman, not the actual server's IP. This allows Cloudflare to speed up page load time by routing packets more efficiently and caching static resources (images, JavaScript, CSS, etc. jkasten January 17, 2022, 2:44pm #19. 123 Main Street Another thing to note is that this app is being sent through . There's a very small list of things that are essential to what we do, and NGINX is one of them," says GrahamCumming. cloudflare api: zone-edit-dns. Show real IP address When running a site behind reverse proxy, by default, web server shows IP of the revese proxy server instead of real visitor IP. I set up the Nginx Proxy Manager with Docker and use it as reverse proxy. As it crashed. However, testing and internal access work a lot more smoothly if you need to go around Cloudflare and not have your browser complain. Theres some other stuff Cloudflare can do like serve as a web application firewall, upgrade requests to HTTPS, and so on, but were focusing on the core functionalityprotecting our home network from the internet. (Note: I have permission from the site's owners to do this.) For example: system.domain.com (Cloudflare Proxy ON) system2.domain.com (Cloudflare Proxy OFF) My NGINX configuration: [2] Ive removed the IPv6 addresses because I dont allow IPv6 requests past my firewall. JavaScript is disabled. Let's see how to reveal the real IP address of the client in the logs behind such reverse proxy server by using ngx_http_realip_module. Container 1. domain1.com; domain2 . In the bottom of the http { } block youll want to add the following: # Cloudflare IPs Reddit and its partners use cookies and similar technologies to provide you with a better experience. Cloudflare provides a reverse proxyand various other security featuresmuch like the nginx proxy that weve already set up. There is no need to await DNS propagation. Cloudflare would not exist without NGINX. On the dashboard, click on the Proxy Hosts button. Saturday & Sunday: 11:00AM3:00PM. You are using an out of date browser. GitHub NginxProxyManager / nginx-proxy-manager Public Notifications Fork 1.1k Star 9.1k Code Issues 664 Pull requests 34 Discussions Actions Projects 1 Security Insights New issue For anyone that is using cloudflare and nginx proxy manager to pipe plex data (which is technically against tos but many people have had this setup for years with no issue as long as caching is disabled via page rule) or any service via this method normally you would see cloudflares ip address. Then your local nginx forwards this connection within your server to AMP. The difference is that Alice sees a Cloudflare address instead of yours, thus hiding your origin address. It was great for many years, but over time its limitations at our scale meant building something new made sense. Your email address will not be published. ). I have a problem with reverse proxy configuration using NGINX. Viewed 3k times 2 I am trying to detect the visitors country. With Origin Cache-Control off and max-age=0, Cloudflare settings bypass cache. Damit die Nachwelt nicht auch ewig sucht und verzweifelt: die Standardeinstellung bei Cloudflare Access ist, dass der Token direkt verfllt. 2. Nginx will accept the "internal" connection between cloudflare's proxy and your server. Choose your operating system to get started. This is great for peering issues, cgnat, tautulli logging, etc, etc. Click Add Proxy Host. Subscribe to your Youtube channel and click the notification bell to be notified when new content goes live. Cloudflare provides a reverse proxy-and various other security features-much like the nginx proxy that we've already set up. nano /etc/nginx/nginx.conf In the bottom of the http { } block you'll want to add the following: AVForums.com is owned and operated by M2N Limited, A time saver if you are regularly moving containers around to different systems. Europe's busiest forums, with independent news and expert reviews, for TVs, Home Cinema, Hi-Fi, Movies, Gaming, Tech and more. Creating origin certificates. Join DigitalOceans virtual conference for global builders. Typically they publish a list of all IPv4/IPv6, and we can script it out as per our need. I reset Nginx using systemctl Changed password & Port in config, also set cert to false I ran code server Added proxied dns A record on Cloudflare Received a white screen with a ton of errors, most notably 1006 as noted by OP Ensure cloudflare proxy (orange cloud) is turned on Ensure in your code server config, cert is set as false 1 Home Entertainment Tech Resource. However, the best option is Full (Strict) SSL mode where Cloudflare requires a valid certificate on your origin. Save my name, email, and website in this browser for the next time I comment. Click "Save tunnel" Step 3 315 verified user reviews and ratings of features, pros, cons, pricing, support and more. However, I can only see IPs from Cloudflare by default in the logs as my server was proxied by Cloudflare. DNS resolves geek.cm to one of Cloudflares servers. To do this, you can enable the Full SSL option which proxies HTTPS to HTTPS. The cron job ensures that if Cloudflare adds more reverse proxies or changes their IP ranges, we arent denying that traffic. I admit that I'm relatievly new to nginx, so if anyone could put me to resources that could explain this, then it would be much appreciated. We need your support. Ubuntu 22.04 I will assume you already have a working LEMP server working. Front end proxy and reverse proxy of Nginx is always useful. If you want to check if the list of IPs above is still current have a look at the Cloudflare IP Ranges. Optionally you can order an SSL Certificate or upload a previously purchased.

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