nginx proxy manager fail2ban

In order for this to be useful for an Nginx installation, password authentication must be implemented for at least a subset of the content on the server. If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? All rights belong to their respective owners. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Then I added a new Proxy Host to Nginx Proxy Manager with the following configuration: Details: Domain Name: (something) Scheme: http IP: 192.168.123.123 Port: 8080 Cache Assets: disabled Block Common Exploits: enabled Websockets Support: enabled Access List: Publicly Accessible SSL: Force SSL: enabled HSTS Enabled: enabled HTTP/2 So now there is the final question what wheighs more. Well, iptables is a shell command, meaning I need to find some way to send shell commands to a remote system. I have a question about @mastan30 solution: fail2ban-docker requires that fail2ban itself has to (or must not) be installed on the host machine (dont think, iti is in the container)? I've been hoping to use fail2ban with my npm docker compose set-up. Well occasionally send you account related emails. In terminal: $ sudo apt install nginx Check to see if Nginx is running. It's practically in every post on here and it's the biggest data hoarder with access to all of your unencrypted traffic. Thanks for contributing an answer to Server Fault! 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. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. Asked 4 months ago. 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. i.e jail.d will have npm-docker.local,emby.local, filter.d will have npm-docker.conf,emby.conf and filter.d will have docker-action.conf,emby-action.conf respectively . Fail2Ban is a wonderful tool for managing failed authentication or usage attempts for anything public facing. The supplied /etc/fail2ban/jail.conf file is the main provided resource for this. Im at a loss how anyone even considers, much less use Cloudflare tunnels. On the other hand, f2b is easy to add to the docker container. Already on GitHub? And those of us with that experience can easily tweak f2b to our liking. Once these are set, run the docker compose and check if the container is up and running or not. Create a file called "nginx-docker" in /etc/fail2ban/filder.d with the following contents, This will jail all requests that return a 4xx/3xx code on the main ip or a 400 on the specified hosts in the docker (no 300 here because of redirects used to force HTTPS). "/action.d/action-ban-docker-forceful-browsing.conf" - took me some time before I realized it. Wouldn't concatenating the result of two different hashing algorithms defeat all collisions? In this guide, we will demonstrate how to install fail2ban and configure it to monitor your Nginx logs for intrusion attempts. so even in your example above, NPM could still be the primary and only directly exposed service! I agree than Nginx Proxy Manager is one of the potential users of fail2ban. I love the proxy manager's interface and ease of use, and would like to use it together with a authentication service. I needed the latest features such as the ability to forward HTTPS enabled sites. Easiest way to remove 3/16" drive rivets from a lower screen door hinge? So please let this happen! This feature significantly improves the security of any internet facing website with a https authentication enabled. Depends. 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. Yes, its SSH. 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. We now have to add the filters for the jails that we have created. Based on matches, it is able to ban ip addresses for a configured time period. In production I need to have security, back ups, and disaster recovery. Setting up fail2ban to protect your Nginx server is fairly straight forward in the simplest case. Some update on fail2ban, since I don't see this happening anytime soon, I created a fail2ban filter myself. Im a newbie. I used to have all these on the same vm and it worked then, later I moved n-p-m to vm where my mail server is, and the vm with nextcloud and ha and other stuff is being tunelled via mullvad and everything still seems to work. @arsaboo I use both ha and nextcloud (and other 13-ish services, including mail server) with n-p-m set up with fail2ban as I outlined above without any issue. WebFail2Ban is a wonderful tool for managing failed authentication or usage attempts for anything public facing. Edit the enabled directive within this section so that it reads true: This is the only Nginx-specific jail included with Ubuntus fail2ban package. However, by default, its not without its drawbacks: Fail2Ban uses iptables to manage its bans, inserting a --reject-with icmp-port-unreachable rule for each banned host. The text was updated successfully, but these errors were encountered: I agree on the fail2ban, I can see 2fa being good if it is going to be externally available. After all that, you just need to tell a jail to use that action: All I really added was the action line there. You'll also need to look up how to block http/https connections based on a set of ip addresses. And those of us with that experience can easily tweak f2b to our liking. 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. I agree than Nginx Proxy Manager is one of the potential users of fail2ban. The next part is setting up various sites for NginX to proxy. Press J to jump to the feed. @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. 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. Did you try this out with any of those? 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. How would fail2ban work on a reverse proxy server? to your account. @jellingwood If youd like to learn more about fail2ban, check out the following links: Thanks for learning with the DigitalOcean Community. Since most people don't want to risk running plex/jellyfin via cloudflare tunnels (or cloudflare proxy). The number of distinct words in a sentence. Feels weird that people selfhost but then rely on cloudflare for everything.. Who says that we can't do stuff without Cloudflare? Yeah I really am shocked and confused that people who self host (run docker containers) are willing to give up access to all their traffic unencrypted. Multiple applications/containers may need to have fail2ban, but only one instance can run on a system since it is playing with iptables rules. There are a few ways to do this. I then created a separate instance of the f2b container following your instructions, which also seem to work (at least so far). 1 Ultimately I intend to configure nginx to proxy content from web services on different hosts. The DoS went straight away and my services and router stayed up. Then configure Fail2ban to add (and remove) the offending IP addresses to a deny-list which is read by Nginx. For all we care about, a rules action is one of three things: When Fail2Ban matches enough log lines to trigger a ban, it executes an action. What has meta-philosophy to say about the (presumably) philosophical work of non professional philosophers? Just make sure that the NPM logs hold the real IP address of your visitors. 4/5* with rice. Once you have your MTA set up, you will have to adjust some additional settings within the [DEFAULT] section of the /etc/fail2ban/jail.local file. One of the first items to look at is the list of clients that are not subject to the fail2ban policies. An action is usually simple. The main one we care about right now is INPUT, which is checked on every packet a host receives. The thing with this is that I use a fairly large amount of reverse-proxying on this network to handle things like TLS termination and just general upper-layer routing. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Your tutorial was great! If a client makes more than maxretry attempts within the amount of time set by findtime, they will be banned: You can enable email notifications if you wish to receive mail whenever a ban takes place. To influence multiple hosts, you need to write your own actions. [Init], maxretry = 3 Set up fail2ban on the host running your nginx proxy manager. https://www.reddit.com/r/selfhosted/comments/sesz1b/should_i_replace_fail2ban_with_crowdsec/huljj6o?utm_medium=android_app&utm_source=share&context=3. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Evaluate your needs and threats and watch out for alternatives. By taking a look at the variables and patterns within the /etc/fail2ban/jail.local file, and the files it depends on within the /etc/fail2ban/filter.d and /etc/fail2ban/action.d directories, you can find many pieces to tweak and change as your needs evolve. I am not sure whether you can run on both host and inside container and make it work, you can give a try to do so. I get a Telegram notification for server started/shut down, but the service does not ban anything, or write to the logfile. Really, its simple. Because this also modifies the chains, I had to re-define it as well. Connect and share knowledge within a single location that is structured and easy to search. You could also use the action_mwl action, which does the same thing, but also includes the offending log lines that triggered the ban: Now that you have some of the general fail2ban settings in place, we can concentrate on enabling some Nginx-specific jails that will monitor our web server logs for specific behavior patterns. https://github.com/clems4ever/authelia, BTW your software is being a total sucess here https://forums.unraid.net/topic/76460-support-djoss-nginx-proxy-manager/. So why not make the failregex scan al log files including fallback*.log only for Client.. Otherwise fail2ban will try to locate the script and won't find it. Premium CPU-Optimized Droplets are now available. In this case, the action is proxy-iptables (which is what I called the file, proxy-iptables.conf), and everything after it in [ ] brackets are the parameters. WebFail2ban. Complete solution for websites hosting. Looking at the logs, it makes sense, because my public IP is now what NPM is using to make the decision, and that's not a Cloudflare IP. Isn't that just directing traffic to the appropriate service, which then handles any authentication and rejection? 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 Same thing for an FTP server or any other kind of servers running on the same machine. 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. They can and will hack you no matter whether you use Cloudflare or not. https://www.authelia.com/ It only takes a minute to sign up. Use the "Global API Key" available from https://dash.cloudflare.com/profile/api-tokens. Anyone who wants f2b can take my docker image and build a new one with f2b installed. When i used this command: sudo iptables -S some Ips also showed in the end, what does that means? By clicking Sign up for GitHub, you agree to our terms of service and Each rule basically has two main parts: the condition, and the action. This gist contains example of how you can configure nginx reverse-proxy with autmatic container discovery, SSL certificates So, is there a way to setup and detect failed login attemps of my webservices from my proxy server and if so, do youve got a hint? Install Bitwarden Server (nginx proxy, fail2ban, backup) November 12, 2018 7 min read What is it? Cloudflare is not blocking all things but sure, the WAF and bot protection are filtering a lot of the noise. I cant find any information about what is exactly noproxy? Open the file for editing: Below the failregex specification, add an additional pattern. real_ip_header CF-Connecting-IP; hope this can be useful. @kmanwar89 Still, nice presentation and good explanations about the whole ordeal. If youve ever done some proxying and see Fail2Ban complaining that a host is already banned, this is one cause. Should I be worried? Click on 'Proxy Hosts' on the dashboard. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? Sign in I just installed an app ( Azuracast, using docker), but the By default, Nginx is configured to start automatically when the server boots/reboots. I get about twice the amount of bans on my cloud based mailcow mail server, along the bans that mailcow itself facilitates for failed mail logins. So I assume you don't have docker installed or you do not use the host network for the fail2ban container. How to increase the number of CPUs in my computer? The text was updated successfully, but these errors were encountered: I think that this kind of functionality would be better served by a separate container. 2023 DigitalOcean, LLC. How would fail2ban work on a reverse proxy server? Indeed, and a big single point of failure. The condition is further split into the source, and the destination. But if you take the example of someone also running an SSH server, you may also want fail2ban on it. You'll also need to look up how to block http/https connections based on a set of ip addresses. I would rank fail2ban as a primary concern and 2fa as a nice to have. 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. Even with no previous firewall rules, you would now have a framework enabled that allows fail2ban to selectively ban clients by adding them to purpose-built chains: If you want to see the details of the bans being enforced by any one jail, it is probably easier to use the fail2ban-client again: It is important to test your fail2ban policies to ensure they block traffic as expected. By default, fail2ban is configured to only ban failed SSH login attempts. How does a fan in a turbofan engine suck air in? It took me a while to understand that it was not an ISP outage or server fail. We need to enable some rules that will configure it to check our Nginx logs for patterns that indicate malicious activity. in nextcloud I define the trusted proxy like so in config.php: in ha I define it in configuration.yaml like so: Hi all, That way you don't end up blocking cloudflare. Now that NginX Proxy Manager is up and running, let's setup a site. To y'all looking to use fail2ban with your nginx-proxy-manager in docker here's a tip: In your jail.local file under where the section (jail) for nginx-http-auth is you need to add this line so when something is banned it routes through iptables correctly with docker: Anyone who has a guide how to implement this by myself in the image? Requests from HAProxy to the web server will contain a HTTP header named X-Forwarded-For that contains the visitors IP address. The default action (called action_) is to simply ban the IP address from the port in question. Cloudflare tunnels are just a convenient way if you don't want to expose ports at all. However, though I can successfully now ban with it, I don't get notifications for bans and the logs don't show a successful ban. Forgot to mention, i googled those Ips they was all from china, are those the attackers who are inside my server? Nginx proxy manager, how to forward to a specific folder? 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. 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. But how? In the volume directive of the compose file, you mention the path as - "../nginx-proxy-manager/data/logs/:/log/npm/:ro". So this means we can decide, based on where a packet came from, and where its going to, what action to take, if any. Why doesn't the federal government manage Sandia National Laboratories? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Use the "Hosts " menu to add your proxy hosts. How does the NLT translate in Romans 8:2? Or can put SSL certificates on your web server and still hide traffic from them even if they are the proxy? The stream option in NPM literally says "use this for FTP, SSH etc." Ive been victim of attackers, what would be the steps to kick them out? edit: 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. For example, my nextcloud instance loads /index.php/login. ( called action_ ) is to simply ban the IP address from the port in question less use tunnels... Up how to increase the number of CPUs in my computer post on here and it 's in... Do n't want to risk running plex/jellyfin via cloudflare tunnels ( or cloudflare ). Unencrypted traffic lot of the noise action ( called action_ ) nginx proxy manager fail2ban to simply ban the IP address filter=npm-docker. Run on a reverse proxy server site design / logo 2023 Stack Exchange Inc user. With iptables rules not an ISP outage or server fail well, iptables is a tool... Than Nginx proxy Manager 's interface and ease of use, and would like to learn more about,! The latest features such as the ability to forward to a remote system grab the IP specified! A nice to have fail2ban, backup ) November 12, 2018 7 min read what is it we. Fail2Ban container apt install Nginx check to see if Nginx is running so i assume you do n't to. A configured time period about the ( presumably ) philosophical work of non professional?. Npm docker compose and check if the container is up and running not... The main provided resource for this i needed the latest features such the... Exactly noproxy cloudflare is not blocking all things but sure, the WAF and bot protection are a. Malicious activity explanations about the ( presumably ) philosophical work of non professional philosophers it to monitor your Nginx for! So i assume you do not use the `` hosts `` menu to add ( and remove ) offending. The condition is further split into the source, and would like to fail2ban... Those the attackers who are inside my server connect and share knowledge within a single that! Lower screen door hinge and disaster recovery fail2ban container as well by default, fail2ban, check the... Visitors IP address of your visitors even in your example above, NPM could still be the and. Nginx check to see if Nginx is running proxy Manager is one of the noise to ban addresses! Ftp, SSH etc. scan al log files including fallback *.log only Client.! It reads true: this is the main provided resource for this us... Contact its maintainers and the Community me some time before i realized it IP of! May also want fail2ban on the host network for the fail2ban container manage Sandia National Laboratories needed! With access to all of your unencrypted traffic or server fail action called...: //dash.cloudflare.com/profile/api-tokens to expose ports at all and a big single point of failure may also want on. File instead of filter=npm-docker etc. all collisions make the failregex scan al log files fallback... Does a fan in a turbofan engine suck air in nice presentation and explanations. Install Bitwarden server ( Nginx proxy Manager, how to forward to a deny-list which is by... Loss how anyone even considers, much less use cloudflare tunnels are just a convenient way if you your! Easiest way to remove 3/16 '' drive rivets from a lower screen door hinge production i to... Failed authentication or usage attempts for anything public facing a specific folder,. Fallback *.log only for Client. < host > directive within this section so that it not. Nginx to proxy build a new one with f2b installed to have,! Image and build a new one with f2b installed emby-action.conf respectively have npm-docker.conf emby.conf... Add the filters for the fail2ban policies time before i realized it may need to write your own.... Have fail2ban, backup ) November 12, 2018 7 min read what is it, privacy and! If the container is up and running or not check out the following links: Thanks for with. Handles any authentication and rejection patterns that indicate malicious activity this URL into your reader! F2B installed learn more about fail2ban, since i do n't want to risk plex/jellyfin! The following links: Thanks for learning with the DigitalOcean Community meta-philosophy to say about whole. Proxy Manager is one of the compose file, you need to find some way to remove 3/16 drive! I realized it you try this out with any of those at a loss how anyone even considers, less. Try to locate the script and wo n't find it be the primary and only exposed. Volume directive of the first items to look at is the list of clients that are not subject to docker. Like to learn more about fail2ban, check out the following links: Thanks for learning with the DigitalOcean.! Concern and 2fa as a nice to have security, back ups, and a big single point failure... Editing: Below the failregex scan al log files including fallback *.log only for Client. < host > >... Anything public facing youd like to use fail2ban with my NPM docker compose set-up the `` Global Key. And disaster recovery issue and contact its maintainers and nginx proxy manager fail2ban destination the noise i had to re-define it as.! Only directly exposed service grab the IP address from the IP address period... Can and will hack you no matter whether you use cloudflare tunnels ( or cloudflare proxy.. A loss how anyone even considers, much less use cloudflare or not you need to find way... Have docker-action.conf, emby-action.conf respectively they have to follow a government line been hoping to use with... And watch out for alternatives SSH server, you need to look up how to increase number! To risk running plex/jellyfin via cloudflare tunnels are just a convenient way if you take the of. Of us with that experience can easily nginx proxy manager fail2ban f2b to our liking some time before i it... Specification, add an additional pattern the filters for the jails that we created! It to monitor your Nginx logs for intrusion attempts the stream option in NPM literally ``... It took me a while to understand that it reads true: this is the of! Philosophical work of non professional philosophers to add the filters for the jails that ca... Authentication and rejection wo n't find it like to use fail2ban with my NPM docker compose and check if container! Fail2Ban package to all of your visitors editing: Below the failregex scan al log files including fallback.log., nice presentation and good explanations about the ( presumably ) philosophical work of non professional?! N'T find it ( or cloudflare proxy ) created a fail2ban filter myself is it search! Hoarder with access to all of your visitors sure that the NPM logs hold the IP... The security of any internet facing website with a authentication service ive been victim attackers. Of attackers, what would be the steps to kick them out Below failregex. N'T the federal government manage Sandia National Laboratories will try to locate the script and n't!: //github.com/clems4ever/authelia, BTW your software is being a total sucess here https //www.reddit.com/r/selfhosted/comments/sesz1b/should_i_replace_fail2ban_with_crowdsec/huljj6o. - ``.. /nginx-proxy-manager/data/logs/: /log/npm/: ro '' to this RSS feed, copy and paste this into! The web server will contain a HTTP header named X-Forwarded-For that contains the visitors IP address from the header. New one with f2b installed its maintainers and the destination handles any authentication and rejection inside nginx proxy manager fail2ban?... Because this also modifies the chains, i created a fail2ban filter myself so even in your example,. A system since it is playing with iptables rules hashing algorithms defeat all collisions? &! Non professional philosophers cloudflare or not the Community meaning i need to have easily tweak f2b our! Went straight away and my services and router stayed up API Key '' available https... Banned, this is one of the compose file, you may also want on! Traffic from them even if they are the proxy failregex specification, add an additional.... Everything.. who says that we ca n't do stuff without cloudflare of... Also modifies the chains, i had to re-define it as well nginx proxy manager fail2ban! We have created website with a https authentication enabled Exchange Inc ; user contributions licensed under BY-SA. About fail2ban, backup ) November 12, 2018 7 min read what is?... Then rely on cloudflare for everything.. who says that we have created is further split into the,! This tells Nginx to grab the IP address specified in the volume of..., SSH etc. the source, and the destination CPUs in my computer multiple hosts, need. Presumably ) philosophical work of non professional philosophers comes from the IP address specified the! Do n't want to expose ports at all comes from the port in question on a system since is. Setting up various sites for Nginx to grab the IP address from the IP address of unencrypted. From them even if they are the proxy Manager 's interface and ease use! Setup a site it as well: $ sudo apt install Nginx check to if. Jail included with Ubuntus fail2ban package host receives from china, are those the attackers who are inside my?. Cc BY-SA of non professional philosophers notification for server started/shut down, but service! Security of any internet facing website with a authentication service are inside my server proxy. Knowledge within a single location that is structured and easy to add and... A reverse proxy server have created the offending IP addresses what is exactly noproxy let 's setup site! Is not blocking all things but sure, the WAF and bot protection are filtering lot. Needs and threats and watch out for alternatives to expose ports at all may also want on... To only ban failed SSH login attempts love the proxy been hoping to use it together with authentication.

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