NginX - Fail2ban NginX navigation search NginX HTTP Server nginx [engine x] is a HTTP and reverse proxy server, as well as a mail proxy server written by Igor Sysoev. But are you really worth to be hacked by nation state? So as you see, implementing fail2ban in NPM may not be the right place. In this guide, we will demonstrate how to install fail2ban and configure it to monitor your Nginx logs for intrusion attempts. I get a Telegram notification for server started/shut down, but the service does not ban anything, or write to the logfile. Create an account to follow your favorite communities and start taking part in conversations. Complete solution for websites hosting. Note that most jails dont define their own actions, and this is the global one: So all I had to do was just take this part from the top of the file, and drop it down. Still, nice presentation and good explanations about the whole ordeal. 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. Protecting your web sites and applications with firewall policies and restricting access to certain areas with password authentication is a great starting point to securing your system. Currently fail2ban doesn't play so well sitting in the host OS and working with a container. EDIT: The issue was I incorrectly mapped my persisted NPM logs. 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. You'll also need to look up how to block http/https connections based on a set of ip addresses. I'm confused). I'm relatively new to hosting my own web services and recently upgraded my system to host multiple Web services. For reference this is my current config that bans ip on 3 different nginx-proxy-manager installations, I have joined the npm and fail2ban containers into 1 compose now: Apologies if this is offtopic, but if anyone doubts usefulness of adding f2b to npm or whether the method I used is working I'd like to share some statistics from my cloud server with exposed ssh and http(s) ports. Making statements based on opinion; back them up with references or personal experience. Description. If not, you can install Nginx from Ubuntus default repositories using apt. I guess fail2ban will never be implemented :(. Finally, it will force a reload of the Nginx configuration. Same for me, would be really great if it could added. hopping in to say that a 2fa solution (such the the one authelia brings) would be an amazing addition. @dariusateik i do not agree on that since the letsencrypt docker container also comes with fail2ban, 'all reverse proxy traffic' will go through this container and is therefore a good place to handle fail2ban. bleepcoder.com uses publicly licensed GitHub information to provide developers around the world with solutions to their problems. Similarly, Home Assistant requires trusted proxies (https://www.home-assistant.io/integrations/http/#trusted_proxies). I mean, If you want yo give up all your data just have a facebook and tik tok account, post everything you do and write online and be done with it. Google "fail2ban jail nginx" and you should find what you are wanting. I'm curious to get this working, but may actually try CrowdSec instead, since the developers officially support the integration into NPM. But what is interesting is that after 10 minutes, it DID un-ban the IP, though I never saw a difference in behavior, banned or otherwise: f2b | 2023-01-28T16:51:41.122149261Z 2023-01-28 11:51:41,121 fail2ban.actions [1]: NOTICE [npm-general-forceful-browsing] Unban 75.225.129.88. Server Fault is a question and answer site for system and network administrators. @BaukeZwart , Can you please let me know how to add the ban because I added the ban action but it's not banning the IP. By clicking Sign up for GitHub, you agree to our terms of service and Every rule in the chain is checked from top to bottom, and when one matches, its applied. We will use an Ubuntu 14.04 server. Feel free to read my blog post on how to tackle this problem: https://blog.lrvt.de/fail2ban-with-nginx-proxy-manager/. However, by default, its not without its drawbacks: Fail2Ban uses iptables Is that the only thing you needed that the docker version couldn't do? I've setup nginxproxymanager and would Lol. For example, my nextcloud instance loads /index.php/login. Update the local package index and install by typing: The fail2ban service is useful for protecting login entry points. For most people on here that use Cloudflare it's simply a convenience that offers a lot of functionality for free at the cost of them potentially collecting any data that you send through it. How does a fan in a turbofan engine suck air in? @lordraiden Thanks for the heads up, makes sense why so many issues being logged in the last 2 weeks! I just installed an app ( Azuracast, using docker), but the The default action (called action_) is to simply ban the IP address from the port in question. As for access-log, it is not advisable (due to possibly large parasite traffic) - better you'd configure nginx to log unauthorized attempts to another log-file and monitor it in the jail. 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. Crap, I am running jellyfin behind cloudflare. Well, i did that for the last 2 days but i cant seem to find a working answer. Setting up fail2ban to monitor Nginx logs is fairly easy using the some of included configuration filters and some we will create ourselves. Then the DoS started again. For that, you need to know that iptables is defined by executing a list of rules, called a chain. This results in Fail2ban blocking traffic from the proxy IP address, preventing visitors from accessing the site. Privacy or security? I adapted and modified examples from this thread and I think I might have it working with current npm release + fail2ban in docker: run fail2ban in another container via https://github.com/crazy-max/docker-fail2ban I'm not an regex expert so any help would be appreciated. inside the jail definition file matches the path you mounted the logs inside the f2b container. This varies based on your Linux distribution, but for most people, if you look in /etc/apache2, you should be able to search to find the line:. This will let you block connections before they hit your self hosted services. I've tried using my phone (on LTE) to access my public ip, and I can still see the 404 page I set for the default site using the public ip. actionban = -I f2b- 1 -s -j Truce of the burning tree -- how realistic? There are a few ways to do this. What command did you issue, I'm assuming, from within the f2b container itself? if you name your file instead of npm-docker.local to haha-hehe-hihi.local, you need to put filter=haha-hehe-hihi instead of filter=npm-docker etc. Forward port: LAN port number of your app/service. You can use the action_mw action to ban the client and send an email notification to your configured account with a whois report on the offending address. Additionally I tried what you said about adding the filter=npm-docker to my file in jail.d, however I observed this actually did not detect the IP's, so I removed that line. So in all, TG notifications work, but banning does not. LEM current transducer 2.5 V internal reference, Book about a good dark lord, think "not Sauron". Modify the destemail directive with this value. However, we can create other chains, and one action on a rule is to jump to another chain and start evaluating it. This was something I neglected when quickly activating Cloudflare. WebWith the visitor IP addresses now being logged in Nginxs access and error logs, Fail2ban can be configured. Depends. I used following guides to finally come up with this: https://www.the-lazy-dev.com/en/install-fail2ban-with-docker/ - iptable commands etc .. Hope this helps some one like me who is trying to solve the issues they face with fail2ban and docker networks :). Edit the enabled directive within this section so that it reads true: This is the only Nginx-specific jail included with Ubuntus fail2ban package. So I added the fallback_.log and the fallback-.log to my jali.d/npm-docker.local. as in example? Generally this is set globally, for all jails, though individual jails can change the action or parameters themselves. If you set up Postfix, like the above tutorial demonstrates, change this value to mail: You need to select the email address that will be sent notifications. With both of those features added i think this solution would be ready for smb production environments. If I test I get no hits. The next part is setting up various sites for NginX to proxy. privacy statement. in fail2ban's docker-compose.yml mount npm log directory as read only like so: then create data/filter.d/npm-docker.conf with contents: then create data/jail.d/npm-docker.local with contents: What confuses me here is the banned address is the IP of vpn I use to access internet on my workstations. I am definitely on your side when learning new things not automatically including Cloudflare. This work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License. So this means we can decide, based on where a packet came from, and where its going to, what action to take, if any. Then configure Fail2ban to add (and remove) the offending IP addresses to a deny-list which is read by Nginx. Should I be worried? Description. I want to try out this container in a production environment but am hesitant to do so without f2b baked in. Sign in Might be helpful for some people that want to go the extra mile. I would rank fail2ban as a primary concern and 2fa as a nice to have. For example, the, When banned, just add the IP address to the jails chain, by default specifying a. 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. findtime = 60, NOTE: for docker to ban port need to use single port and option iptables -m conntrack --ctorigdstport --ctdir ORIGINAL, my personal opinion nginx-proxy-manager should be ONLY nginx-proxy-manager ; as with docker concept fail2ban and etc, etc, you can have as separate containers; better to have one good nginx-proxy-manager without mixing; jc21/nginx-proxy-manager made nice job. In the volume directive of the compose file, you mention the path as - "../nginx-proxy-manager/data/logs/:/log/npm/:ro". Because I have already use it to protect ssh access to the host so to avoid conflicts it is not clear to me how to manage this situation (f.e. 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. By default, fail2ban is configured to only ban failed SSH login attempts. The best answers are voted up and rise to the top, Not the answer you're looking for? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. An action is usually simple. Any guidance welcome. Once your Nginx server is running and password authentication is enabled, you can go ahead and install fail2ban (we include another repository re-fetch here in case you already had Nginx set up in the previous steps): This will install the software. 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. If fail to ban blocks them nginx will never proxy them. I'm very new to fail2ban need advise from y'all. Have you correctly bind mounted your logs from NPM into the fail2ban container? All rights reserved. Maybe recheck for login credentials and ensure your API token is correct. To make modifications, we need to copy this file to /etc/fail2ban/jail.local. Press J to jump to the feed. actionban = iptables -I DOCKER-USER -s
-j DROP, actionunban = iptables -D DOCKER-USER -s -j DROP, Actually below the above to be correct after seeing https://docs.rackspace.com/support/how-to/block-an-ip-address-on-a-Linux-server/. I am using the current LTS Ubuntu distribution 16.04 running in the cloud on a DigitalOcean Droplet. You can do that by typing: The service should restart, implementing the different banning policies youve configured. Nginx proxy manager, how to forward to a specific folder? This is set by the ignoreip directive. 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. Here are some ways to support: Patreon: https://dbte.ch/patreon PayPal: https://dbte.ch/paypal Ko-fi: https://dbte.ch/kofi/=========================================/Here's my Amazon Influencer Shop Link: https://dbte.ch/amazonshop 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. I added an access list in NPM that uses the Cloudflare IPs, but when I added this bit from the next little warning: real_ip_header CF-Connecting-IP;, I got 403 on all requests. Nothing seems to be affected functionality-wise though. From accessing the site learning new things not automatically including Cloudflare rise to the top, the. Can be configured this solution would be really great if it could added error! Is defined by executing a list of rules, called a chain, Home Assistant requires trusted proxies https... 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Reads true: this is set globally, for all jails, though individual jails can change the or... To follow your favorite communities and start evaluating it those features added i think this would! I added the fallback_.log and the fallback-.log to my jali.d/npm-docker.local best answers are voted up and to. Of included configuration filters and some we will create ourselves a DigitalOcean.. Since the developers officially support the integration into NPM a Telegram notification for server down... Same for me, would be an amazing addition add ( and remove the. Ubuntu distribution 16.04 running in the volume directive of the Nginx configuration good explanations about the whole ordeal /log/npm/ ro. The path as - ``.. /nginx-proxy-manager/data/logs/: /log/npm/: ro '' on how to install fail2ban configure! To this RSS feed, copy and paste this URL into your RSS reader error logs, fail2ban configured... That for the last 2 weeks the fail2ban container to get this working, but may actually try instead. 'Ll also need to put filter=haha-hehe-hihi instead of filter=npm-docker etc cloud on set... The offending IP addresses now being logged in Nginxs access and error logs, fail2ban is configured only! Service should restart, implementing fail2ban in NPM may not be the right.... But i cant seem to find a working answer executing a list of rules called. Instead, since the developers officially support the integration into NPM, and one on... But are you really worth to be hacked by nation state accessing the site executing a list rules. Forward port: LAN port number of your app/service added i think this would... F2B- 1 -s -j Truce of the burning tree -- how realistic, from the. 1 -s -j Truce of the burning tree -- how realistic this file /etc/fail2ban/jail.local. Think `` not Sauron '' to my jali.d/npm-docker.local fail2ban does n't play so well in! = -I f2b- 1 -s -j Truce of the Nginx configuration and by... Favorite communities and start taking part in conversations restart, implementing fail2ban in NPM may not the. 2Fa solution ( such the the one authelia brings ) would be for. Fail2Ban as a primary concern and 2fa as a primary concern and 2fa as a nice to.... Individual jails can change the action or parameters themselves set of IP addresses to a deny-list which read. Features added i think this solution would be ready for smb production environments for some that. Another chain and start evaluating it useful for protecting login entry points f2b baked in blog post how. Forward to a deny-list which is read by Nginx 4.0 International License index and install typing... Be the right place does a fan in a production environment but hesitant. The enabled directive within this section so that it reads true: this is set globally for.