This worked for about 1 day. 4/5* with rice. Description. Wouldn't concatenating the result of two different hashing algorithms defeat all collisions? This will allow Nginx to block IPs that Fail2ban identifies from the Nginx error log file. Alternatively, they will just bump the price or remove free tier as soon as enough people are catched in the service. To remove mod_cloudflare, you should comment out the Apache config line that loads mod_cloudflare. I agree than Nginx Proxy Manager is one of the potential users of fail2ban. Im a newbie. Because how my system is set up, Im SSHing as root which is usually not recommended. After this fix was implemented, the DoS stayed away for ever. Note: theres probably a more elegant way to accomplish this. We now have to add the filters for the jails that we have created. I guess Ill stick to using swag until maybe one day it does. 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)? Setting up fail2ban to monitor Nginx logs is fairly easy using the some of included configuration filters and some we will create ourselves. Next, we can copy the apache-badbots.conf file to use with Nginx. --Instead just renaming it to "/access.log" gets the server started, but that's about as far as it goes. Create an account to follow your favorite communities and start taking part in conversations. Just need to understand if fallback file are useful. Hope I have time to do some testing on this subject, soon. Should I be worried? Firewall evading, container breakouts, staying stealthy do not underestimate those guys which are probably the top 0.1% of hackers. +1 for both fail2ban and 2fa support. Fail2ban can scan many different types of logs such as Nginx, Apache and ssh logs. You can do that by typing: The service should restart, implementing the different banning policies youve configured. 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. 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? However, any publicly accessible password prompt is likely to attract brute force attempts from malicious users and bots. But is the regex in the filter.d/npm-docker.conf good for this? Just for a little background if youre not aware, iptables is a utility for running packet filtering and NAT on Linux. The steps outlined here make many assumptions about both your operating environment and BTW anyone know what would be the steps to setup the zoho email there instead? We dont need all that. WebSo I assume you don't have docker installed or you do not use the host network for the fail2ban container. What are they trying to achieve and do with my server? How to increase the number of CPUs in my computer? Is it save to assume it is the default file from the developer's repository? How can I recognize one? Yes! The DoS went straight away and my services and router stayed up. Otherwise fail2ban will try to locate the script and won't find it. WebNow Im trying to get homelab-docs.mydomain.com to go through the tunnel, hit the reverse proxy, and get routed to the backend container thats running dokuwiki. The main one we care about right now is INPUT, which is checked on every packet a host receives. 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. Isn't that just directing traffic to the appropriate service, which then handles any authentication and rejection? :). It took me a while to understand that it was not an ISP outage or server fail. For example, the, When banned, just add the IP address to the jails chain, by default specifying a. I then created a separate instance of the f2b container following your instructions, which also seem to work (at least so far). I'm confused). Scheme: http or https protocol that you want your app to respond. I get a Telegram notification for server started/shut down, but the service does not ban anything, or write to the logfile. The best answers are voted up and rise to the top, Not the answer you're looking for? WebFail2ban. The error displayed in the browser is All I needed to do now was add the custom action file: Its actually pretty simple, I more-or-less copied iptables-multiport.conf and wrapped all the commands in a ssh [emailprotected] '' so that itll start an SSH session, run the one provided command, dump its output to STDOUT, and then exit. I followed the guide that @mastan30 posted and observed a successful ban (though 24 hours after 3 tries is a bit long, so I have to figure out how to un-ban myself). Welcome to your friendly /r/homelab, where techies and sysadmin from everywhere are welcome to share their labs, projects, builds, etc. nice tutorial but despite following almost everything my fail2ban status is different then the one is give in this tutorial as example. I do not want to comment on others instructions as the ones I posted are the only ones that ever worked for me. Just because we are on selfhosted doesn't mean EVERYTHING needs to be selfhosted. Would be great to have fail2ban built in like the linuxserver/letsencrypt Docker container! One of the first items to look at is the list of clients that are not subject to the fail2ban policies. You may also have to adjust the config of HA. Now that NginX Proxy Manager is up and running, let's setup a site. You can see all of your enabled jails by using the fail2ban-client command: You should see a list of all of the jails you enabled: You can look at iptables to see that fail2ban has modified your firewall rules to create a framework for banning clients. Start by setting the mta directive. This work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License. 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. Here is the sample error log from nginx 2017/10/18 06:55:51 [warn] 34604#34604: *1 upstream server temporarily disabled while connecting to upstream, client: , server: mygreat.server.com, request: "GET / HTTP/1.1", upstream: "https://:443/", host: "mygreat.server.com" Maybe drop into the Fail2ban container and validate that the logs are present at /var/log/npm. Proxying Site Traffic with NginX Proxy Manager. So this means we can decide, based on where a packet came from, and where its going to, what action to take, if any. If you do not use PHP or any other language in conjunction with your web server, you can add this jail to ban those who request these types of resources: We can add a section called [nginx-badbots] to stop some known malicious bot request patterns: If you do not use Nginx to provide access to web content within users home directories, you can ban users who request these resources by adding an [nginx-nohome] jail: We should ban clients attempting to use our Nginx server as an open proxy. You'll also need to look up how to block http/https connections based on a set of ip addresses. I think I have an issue. They will improve their service based on your free data and may also sell some insights like meta data and stuff as usual. Check out our offerings for compute, storage, networking, and managed databases. Really, its simple. 2023 DigitalOcean, LLC. Is that the only thing you needed that the docker version couldn't do? Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? 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. PTIJ Should we be afraid of Artificial Intelligence? If you are using volumes and backing them up nightly you can easily move your npm container or rebuild it if necessary. If I test I get no hits. So please let this happen! 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 You'll also need to look up how to block http/https connections based on a set of ip addresses. Weve updated the /etc/fail2ban/jail.local file with some additional jail specifications to match and ban a larger range of bad behavior. wessel145 - I have played with the same problem ( docker ip block ) few days :) finally I have working solution; actionstop = -D DOCKER-USER -p -m conntrack --ctorigdstport --ctdir ORIGINAL -j f2b- 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. Before that I just had a direct configuration without any proxy. Errata: both systems are running Ubuntu Server 16.04. It works form me. Truce of the burning tree -- how realistic? Yes, you can use fail2ban with anything that produces a log file. This container runs with special permissions NET_ADMIN and NET_RAW and runs in host network mode by default. Just make sure that the NPM logs hold the real IP address of your visitors. 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. By clicking Sign up for GitHub, you agree to our terms of service and But how? The only workaround I know for nginx to handle this is to work on tcp level. To make this information appear in the logs of Nginx, modify nginx.conf to include the following directives in your http block. You signed in with another tab or window. If you are using volumes and backing them up nightly you can easily move your npm container or rebuild it if necessary. Lol. 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. What i would like to prevent are the last 3 lines, where the return code is 401. Complete solution for websites hosting. Along banning failed attempts for n-p-m I also ban failed ssh log ins. Press question mark to learn the rest of the keyboard shortcuts, https://dash.cloudflare.com/profile/api-tokens. I just installed an app ( Azuracast, using docker), but the At what point of what we watch as the MCU movies the branching started? Well, i did that for the last 2 days but i cant seem to find a working answer. What has meta-philosophy to say about the (presumably) philosophical work of non professional philosophers? So imo the only persons to protect your services from are regular outsiders. ! The script works for me. We need to create the filter files for the jails weve created. It's completely fine to let people know that Cloudflare can, and probably will, collect some of your data if you use them. Each action is a script in action.d/ in the Fail2Ban configuration directory (/etc/fail2ban). @kmanwar89 But if you This is less of an issue with web server logins though if you are able to maintain shell access, since you can always manually reverse the ban. By clicking Sign up for GitHub, you agree to our terms of service and 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? @vrelk Upstream SSL hosts support is done, in the next version I'll release today. Why are non-Western countries siding with China in the UN? We need to enable some rules that will configure it to check our Nginx logs for patterns that indicate malicious activity. Currently fail2ban doesn't play so well sitting in the host OS and working with a container. Cloudflare tunnels are just a convenient way if you don't want to expose ports at all. This is set by the ignoreip directive. I want to try out this container in a production environment but am hesitant to do so without f2b baked in. You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link! This will let you block connections before they hit your self hosted services. Can I implement this without using cloudflare tunneling? By default, HAProxy receives connections from visitors to a frontend and then redirects traffic to the appropriate backend. Have a question about this project? 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. @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. Proxy: HAProxy 1.6.3 Use the "Global API Key" available from https://dash.cloudflare.com/profile/api-tokens. 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. In terminal: $ sudo apt install nginx Check to see if Nginx is running. 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/. Click on 'Proxy Hosts' on the dashboard. 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. 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. Is fail2ban a better option than crowdsec? WebApache. Dashboard View If you are interested in protecting your Nginx server with fail2ban, you might already have a server set up and running. 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. Connect and share knowledge within a single location that is structured and easy to search. These will be found under the [DEFAULT] section within the file. 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. Https encrypted traffic too I would say, right? Open the file for editing: Below the failregex specification, add an additional pattern. Only solution is to integrate the fail2ban directly into to NPM container. Your browser does not support the HTML5