nginx proxy manager fail2ban
Adding the fallback files seems useful to me. nginxproxymanager fail2ban for 401. Currently fail2ban doesn't play so well sitting in the host OS and working with a container. When unbanned, delete the rule that matches that IP address. @mastan30 I'm using cloudflare for all my exposed services and block IP in cloudflare using the API. Requests from HAProxy to the web server will contain a HTTP header named X-Forwarded-For that contains the visitors IP address. Easiest way to remove 3/16" drive rivets from a lower screen door hinge? Google "fail2ban jail nginx" and you should find what you are wanting. When a proxy is internet facing, is the below the correct way to ban? I confirmed the fail2ban in docker is working by repeatedly logging in with bad ssh password and that got banned correctly and I was unable to ssh from that host for configured period. However, you must ensure that only IPv4 and IPv6 IP addresses of the Cloudflare network are allowed to talk to your server. Each jail within the configuration file is marked by a header containing the jail name in square brackets (every section but the [DEFAULT] section indicates a specific jails configuration). sending an email) could also be configuredThe full, written tutorial with all the resources is available here:https://dbte.ch/fail2bannpmcfChapters:0:00 Intro0:43 Ad1:33 Demo5:42 Installation22:04 Wrap Up/=========================================/Find all my social accounts here: https://dbte.ch/Ways to support DB Tech: https://www.patreon.com/dbtech https://www.paypal.me/DBTechReviews https://ko-fi.com/dbtechCome chat in Discord: https://dbte.ch/discordJoin this channel to get access to perks: https://www.youtube.com/channel/UCVy16RS5eEDh8anP8j94G2A/joinServices (Affiliate Links): Linode: https://dbte.ch/linode PrivadoVPN: https://dbte.ch/privadovpn Digital Ocean: https://dbte.ch/do Bunny CDN: https://dbte.ch/bunnycdn Private Internet Access (PIA) VPN: https://dbte.ch/piavpn Amazon: https://dbte.ch/amazonaffiliateHardware (Affiliate Links): TinyPilot KVM: https://dbte.ch/tpkvm LattePanda Delta 432: https://dbte.ch/dfrobot Lotmaxx SC-10 Shark: https://dbte.ch/sc10shark EchoGear 10U Rack: https://dbte.ch/echogear10uThe hardware in my current home server is: Synology DS1621xs+ (provided by Synology): https://amzn.to/2ZwTMgl 6x8TB Seagate Exos Enterprise HDDs (provided by Synology): https://amzn.to/3auLdcb 16GB DDR4 ECC RAM (provided by Synology): https://amzn.to/3do7avd 2TB NVMe Caching Drive (provided by Sabrent): https://amzn.to/3dwPCxjAll amzn.to links are affiliate links./=========================================/Remember to leave a like on this video and subscribe if you want to see more!/=========================================/Like what I do? It's the configuration of it that would be hard for the average joe. privacy statement. If I test I get no hits. A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control. I can still log into to site. To learn how to set up a user with sudo privileges, follow our initial server setup guide for Ubuntu 14.04. 100 % agree - > On the other hand, f2b is easy to add to the docker container. Furthermore, all probings from random Internet bots also went down a lot. I have my fail2ban work : Do someone have any idea what I should do? It is ideal to set this to a long enough time to be disruptive to a malicious actors efforts, while short enough to allow legitimate users to rectify mistakes. Create a folder fail2ban and create the docker-compose.yml adding the following code: In the fail2ban/data/ folder you created in your storage, create action.d, jail.d, filter.d folders and copy the files in the corresponding folder of git into them. I just wrote up my fix on this stackoverflow answer, and itd be great if you could update that section section of your article to help people that are still finding it useful (like I did) all these years later. I'm assuming this should be adjusted relative to the specific location of the NPM folder? The number of distinct words in a sentence. Using Fail2ban behind a proxy requires additional configuration to block the IP address of offenders. If you are interested in protecting your Nginx server with fail2ban, you might already have a server set up and running. However, I still receive a few brute-force attempts regularly although Cloudflare is active. The DoS went straight away and my services and router stayed up. But if you take the example of someone also running an SSH server, you may also want fail2ban on it. Since its the proxy thats accepting the client connections, the actual server host, even if its logging system understands whats happening (say, with PROXY protocol) and logs the real clients IP address, even if Fail2Ban puts that IP into the iptables rules, since thats not the connecting IP, it means nothing. This gist contains example of how you can configure nginx reverse-proxy with autmatic container discovery, SSL certificates My email notifications are sending From: root@localhost with name root. Having f2b inside the npm container and pre-configured, similiar to the linuxio container, gives end users without experience in building jails and filters an extra layer of security. Yes fail2ban would be the cherry on the top! Fail2ban is a daemon to ban hosts that cause multiple authentication errors.. Install/Setup. But, when you need it, its indispensable. According to https://www.home-assistant.io/docs/ecosystem/nginx/, it seems that you need to enable WebSocket support. I am definitely on your side when learning new things not automatically including Cloudflare. What does a search warrant actually look like? Fail2ban does not update the iptables. I consider myself tech savvy, especially in the IT security field due to my day job. The best answers are voted up and rise to the top, Not the answer you're looking for? edit: most of your issues stem from having different paths / container / filter names imho, set it up exactly as I posted as that works to try it out, and then you can start adjusting paths and file locations and container names provided you change them in all relevant places. Anyone reading this in the future, the reference to "/action.d/action-ban-docker-forceful-browsing" is supposed to be a .conf file, i.e. After you have surpassed the limit, you should be banned and unable to access the site. Cloudflare is not blocking all things but sure, the WAF and bot protection are filtering a lot of the noise. Right, they do. We will use an Ubuntu 14.04 server. Thanks for your blog post. Docker installs two custom chains named DOCKER-USER and DOCKER. @dariusateik the other side of docker containers is to make deployment easy. Depending on how proxy is configured, Internet traffic may appear to the web server as originating from the proxys IP address, instead of the visitors IP address. I love the proxy manager's interface and ease of use, and would like to use it together with a authentication service. Adding the fallback files seems useful to me. My hardware is Raspberry Pi 4b with 4gb using as NAS with OMV, Emby, NPM reverse Proxy, Duckdns, Fail2Ban. Fill in the needed info for your reverse proxy entry. In my case, my folder is just called "npm" and is within the ~/services directory on my server, so I modified it to be (relative to the f2b compose file) ../npm/data/logs. LoadModule cloudflare_module. I have disabled firewalld, installed iptables, disabled (renamed) /jail.d/00-firewalld.conf file. Please read the Application Setup section of the container documentation.. This textbox defaults to using Markdown to format your answer. Have you correctly bind mounted your logs from NPM into the fail2ban container? The problem is that when i access my web services with an outside IP, for example like 99.99.99.99, my nginx proxy takes that request, wraps its own ip around it, for example 192.168.0.1, and then sends it to my webserver. so even in your example above, NPM could still be the primary and only directly exposed service! And even tho I didn't set up telegram notifications, I get errors about that too. Thanks for contributing an answer to Server Fault! But i dont want to setup fail2ban that it blocks my proxy so that it gets banned and nobody can access those webservices anymore because blocking my proxys ip will result in blocking every others ip, too. If youd like to learn more about fail2ban, check out the following links: Thanks for learning with the DigitalOcean Community. As you can see, NGINX works as proxy for the service and for the website and other services. In production I need to have security, back ups, and disaster recovery. The sendername directive can be used to modify the Sender field in the notification emails: In fail2ban parlance, an action is the procedure followed when a client fails authentication too many times. Connect and share knowledge within a single location that is structured and easy to search. You can add additional IP addresses or networks delimited by a space, to the existing list: Another item that you may want to adjust is the bantime, which controls how many seconds an offending member is banned for. Learning the basics of how to protect your server with fail2ban can provide you with a great deal of security with minimal effort. The error displayed in the browser is If I test I get no hits. In NPM Edit Proxy Host added the following for real IP behind Cloudflare in Custom Nginx Configuration: actionban = -I f2b- 1 -s -j An action is usually simple. If youve ever done some proxying and see Fail2Ban complaining that a host is already banned, this is one cause. Is there a (manual) way to use Nginx-proxy-manager reverse proxies in combination with Authelia 2FA? We need to create the filter files for the jails weve created. How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? @jc21 I guess I should have specified that I was referring to the docker container linked in the first post (unRAID). Set up fail2ban on the host running your nginx proxy manager. And to be more precise, it's not really NPM itself, but the services it is proxying. Yep. The value of the header will be set to the visitors IP address. First, create a new jail: [nginx-proxy] enabled = true port = http logpath = % Once these are set, run the docker compose and check if the container is up and running or not. Begin by running the following commands as a non-root user to What has meta-philosophy to say about the (presumably) philosophical work of non professional philosophers? @BaukeZwart Can we get free domain using cloudfare, I got a domain from duckdns and added it nginx reverse proxy but fail2ban is not banning the ip's, can I use cloudfare with free domain and nginx proxy, do you have any config for docker please? Complete solution for websites hosting. The card will likely have a 0, and the view will be empty, or should, so we need to add a new host. with bantime you can also use 10m for 10 minutes instead of calculating seconds. This will let you block connections before they hit your self hosted services. However, by default, its not without its drawbacks: Fail2Ban uses iptables So the solution to this is to put the iptables rules on 192.0.2.7 instead, since thats the one taking the actual connections. Yes, you can use fail2ban with anything that produces a log file. Graphs are from LibreNMS. Along banning failed attempts for n-p-m I also ban failed ssh log ins. Hello @mastan30, Increase or decrease this value as you see fit: The next two items determine the scope of log lines used to determine an offending client. Each chain also has a name. Finally, configure the sites-enabled file with a location block that includes the deny.conf file Fail2ban is writing to. I just installed an app ( Azuracast, using docker), but the The unban action greps the deny.conf file for the IP address and removes it from the file. Indeed, and a big single point of failure. Because this also modifies the chains, I had to re-define it as well. I have configured the fail2ban service - which is located at the webserver - to read the right entrys of my log to get the outsiders IP and blocks it. The default action (called action_) is to simply ban the IP address from the port in question. How To Install nginx on CentOS 6 with yum, /etc/fail2ban/filter.d/nginx-http-auth.conf, /etc/fail2ban/filter.d/nginx-noscript.conf, /etc/fail2ban/filter.d/nginx-noproxy.conf, Simple and reliable cloud website hosting, New! For many people, such as myself, that's worth it and no problem at all. Otherwise, Fail2ban is not able to inspect your NPM logs!". But, fail2ban blocks (rightfully) my 99.99.99.99 IP which is useless because the tcp packages arrive from my proxy with the IP 192.168.0.1. In addition, being proxied by cloudflare, added also a custom line in config to get real origin IP. Isn't that just directing traffic to the appropriate service, which then handles any authentication and rejection? Just need to understand if fallback file are useful. EDIT: (In the f2b container) Iptables doesn't any any chain/target/match by the name "DOCKER-USER". But is the regex in the filter.d/npm-docker.conf good for this? Based on matches, it is able to ban ip addresses for a configured time period. What are they trying to achieve and do with my server? edit: Sure, thats still risky, allowing iptables access like this is always risky, but thats what needs to be done barring some much more complex setups. We can add an [nginx-noproxy] jail to match these requests: When you are finished making the modifications you need, save and close the file. +1 for both fail2ban and 2fa support. Fail2Ban is a wonderful tool for managing failed authentication or usage attempts for anything public facing. This change will make the visitors IP address appear in the access and error logs. WebThe fail2ban service is useful for protecting login entry points. Hello, thanks for this article! In terminal: $ sudo apt install nginx Check to see if Nginx is running. I needed the latest features such as the ability to forward HTTPS enabled sites. What i would like to prevent are the last 3 lines, where the return code is 401. Or save yourself the headache and use cloudflare to block ips there. The name is used to name the chain, which is taken from the name of this jail (dovecot), port is taken from the port list, which are symbolic port names from /etc/services, and protocol and chain are taken from the global config, and not overridden for this specific jail. to your account, Please consider fail2ban I also adjusted the failregex in filter.d/npm-docker.conf, here is the file content: Referencing the instructions that @hugalafutro mentions here: I attempted to follow your steps, however had a few issues: The compose file you mention includes a .env file, however you didn't provide the contents of this file. Nothing helps, I am not sure why, and I dont see any errors that why is F2B unable to update the iptables rules. However, we can create other chains, and one action on a rule is to jump to another chain and start evaluating it. To do so, you will have to first set up an MTA on your server so that it can send out email. What I really need is some way for Fail2Ban to manage its ban list, effectively, remotely. This tells Nginx to grab the IP address from the X-Forwarded-For header when it comes from the IP address specified in the set_real_ip_from value. In order for this to be useful for an Nginx installation, password authentication must be implemented for at least a subset of Ask Question. Next, we can copy the apache-badbots.conf file to use with Nginx. I do not want to comment on others instructions as the ones I posted are the only ones that ever worked for me. For that, you need to know that iptables is defined by executing a list of rules, called a chain. Always a personal decision and you can change your opinion any time. Forgot to mention, i googled those Ips they was all from china, are those the attackers who are inside my server? What's the best 2FA / fail2ban with a reverse proxy : r/unRAID My mail host has IMAP and POP proxied, meaning their bans need to be put on the proxy. This container runs with special permissions NET_ADMIN and NET_RAW and runs in host network mode by default. On the web server, all connections made to it from the proxy will appear to come from the proxys IP address. Is that the only thing you needed that the docker version couldn't do? The supplied /etc/fail2ban/jail.conf file is the main provided resource for this. But how? We are not affiliated with GitHub, Inc. or with any developers who use GitHub for their projects. The only place (that I know of) that its used is in the actionstop line, to clear a chain before its deleted. I started my selfhosting journey without Cloudflare. Making statements based on opinion; back them up with references or personal experience. Isn't that just directing traffic to the appropriate service, which then handles any authentication and rejection? The one thing I didnt really explain is the actionflush line, which is defines in iptables-common.conf. To change this behavior, use the option forwardfor directive. As v2 is not actively developed, just patched by the official author, it will not be added in v2 unless someone from the community implements it and opens a pull request. Asked 4 months ago. You can follow this guide to configure password protection for your Nginx server. Evaluate your needs and threats and watch out for alternatives. Press J to jump to the feed. --The same result happens if I comment out the line "logpath - /var/log/npm/*.log". WebFail2ban. Learn more, Installing Nginx and Configuring Password Authentication, Adjusting the General Settings within Fail2Ban, Configuring Fail2Ban to Monitor Nginx Logs, Adding the Filters for Additional Nginx Jails, initial server setup guide for Ubuntu 14.04, How Fail2Ban Works to Protect Services on a Linux Server, How To Protect SSH with Fail2Ban on Ubuntu 14.04, How To Protect an Apache Server with Fail2Ban on Ubuntu 14.04, https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-as-a-send-only-smtp-server-on-ubuntu-14-04. Any guesses? Description. I am having trouble here with the iptables rules i.e. I just cobbled the fail2ban "integration" together from various tutorials, with zero understanding of iptables or docker networking etc. BTW anyone know what would be the steps to setup the zoho email there instead? I understand that there are malicious people out there and there are users who want to protect themselves, but is f2b the only way for them to do this? So inside in your nginx.conf and outside the http block you have to declare the stream block like this: stream { # server { listen 80; proxy_pass 192.168.0.100:3389; } } With the above configuration just proxying your backend on tcp layer with a cost of course. When operating a web server, it is important to implement security measures to protect your site and users. Ackermann Function without Recursion or Stack. Forward port: LAN port number of your app/service. All rights reserved. Once this option is set, HAProxy will take the visitors IP address and add it as a HTTP header to the request it makes to the backend. In your instructions, you mount the NPM files as /data/logs and mount it to /log/npm, but in this blog post, the author specifically mentions "Ensure that you properly bind mount the logs at /data/logs of your NPM reverse proxy into the Fail2ban docker container at /var/log/npm. Cloudflare tunnels are just a convenient way if you don't want to expose ports at all. Modified 4 months ago. My switch was from the jlesage fork to yours. To enable log monitoring for Nginx login attempts, we will enable the [nginx-http-auth] jail. So I added the fallback__.log and the fallback-_.log to my jali.d/npm-docker.local. Luckily, its not that hard to change it to do something like that, with a little fiddling. When i used this command: sudo iptables -S some Ips also showed in the end, what does that means? There's talk about security, but I've worked for multi million dollar companies with massive amounts of sensitive customer data, used by government agencies and never once have we been hacked or had any suspicious attempts to gain access. The only issue is that docker sort of bypasses all iptables entries, fail2ban makes the entry but those are ignored by docker, resulting in having the correct rule in iptables or ufw, but not actually blocking the IP. Fail2ban already blocked several Chinese IPs because of this attempt, and I lowered to maxretry 0 and ban for one week. Solution: It's setting custom action to ban and unban and also use Iptables forward from forward to f2b-npm-docker, f2b-emby which is more configuring up docker network, my docker containers are all in forward chain network, you can change FOWARD to DOCKER-USER or INPUT according to your docker-containers network. Create an account to follow your favorite communities and start taking part in conversations. WebFail2Ban is a wonderful tool for managing failed authentication or usage attempts for anything public facing. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. #
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