We dont need all that. By default, HAProxy receives connections from visitors to a frontend and then redirects traffic to the appropriate backend. Docker installs two custom chains named DOCKER-USER and DOCKER. nice tutorial but despite following almost everything my fail2ban status is different then the one is give in this tutorial as example. 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. Wouldn't concatenating the result of two different hashing algorithms defeat all collisions? Learning the basics of how to protect your server with fail2ban can provide you with a great deal of security with minimal effort. It works for me also. @mastan30 I'm using cloudflare for all my exposed services and block IP in cloudflare using the API. Connections to the frontend show the visitors IP address, while connections made by HAProxy to the backends use HAProxys IP address. Well occasionally send you account related emails. I cant find any information about what is exactly noproxy? However, any publicly accessible password prompt is likely to attract brute force attempts from malicious users and bots. To get started, we need to adjust the configuration file that fail2ban uses to determine what application logs to monitor and what actions to take when offending entries are found. 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. My understanding is that this result means my firewall is not configured correctly, but I wanted to confirm from someone who actually knows what they are doing. Secure Your Self Hosting with Fail2Ban + Nginx Proxy Manager + CloudFlare 16,187 views Jan 20, 2022 Today's video is sponsored by Linode! 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. By clicking Sign up for GitHub, you agree to our terms of service and But is the regex in the filter.d/npm-docker.conf good for this? Big thing if you implement f2b, make sure it will pay attention to the forwarded-for IP. We can use this file as-is, but we will copy it to a new name for clarity. Comment or remove this line, then restart apache, and mod_cloudflare should be gone. Already on GitHub? -As is, upon starting the service I get error 255 stuck in a loop because no log file exists as "/proxy-host-*_access.log". Web Server: Nginx (Fail2ban). 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). @jc21 I guess I should have specified that I was referring to the docker container linked in the first post (unRAID). In addition, being proxied by cloudflare, added also a custom line in config to get real origin IP. This error is usually caused by an incorrect configuration of your proxy host. Each chain also has a name. By default, only the [ssh] jail is enabled. This was something I neglected when quickly activating Cloudflare. +1 for both fail2ban and 2fa support. With both of those features added i think this solution would be ready for smb production environments. Start by setting the mta directive. In the volume directive of the compose file, you mention the path as - "../nginx-proxy-manager/data/logs/:/log/npm/:ro". Super secret stuff: I'm not working on v2 anymore, and instead slowly working on v3. Well, iptables is a shell command, meaning I need to find some way to send shell commands to a remote system. #, action = proxy-iptables[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"], iptables-multiport[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"], Fail2Ban Behind a Reverse Proxy: The Almost-Correct Way, A Professional Amateur Develops Color Film, Reject or drop the packet, maybe with extra options for how. You'll also need to look up how to block http/https connections based on a set of ip addresses. hopping in to say that a 2fa solution (such the the one authelia brings) would be an amazing addition. 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. Just need to understand if fallback file are useful. Fill in the needed info for your reverse proxy entry. in nextcloud I define the trusted proxy like so in config.php: in ha I define it in configuration.yaml like so: Hi all, Just because we are on selfhosted doesn't mean EVERYTHING needs to be selfhosted. [PARTIALLY SOLVED, YOU REFER TO THE MAPPED FOLDERS] my logs make by npm are all in in a logs folder (no log, logS), and has the following pattern: /logs/proxy-host-*.log and also fallback*.log; [UPDATE, PARTIALLY SOLVED] the regex seems to work, files proxy* contain: Yes this is just relative path of the npm logs you mount read-only into the fail2ban container, you have to adjust accordingly to your path. So hardening and securing my server and services was a non issue. Its one of the standard tools, there is tons of info out there. Make sure the forward host is properly set with the correct http scheme and port. more Dislike DB Tech Ultimately, it is still Cloudflare that does not block everything imo. To influence multiple hosts, you need to write your own actions. Currently fail2ban doesn't play so well sitting in the host OS and working with a container. This worked for about 1 day. EDIT: The issue was I incorrectly mapped my persisted NPM logs. rev2023.3.1.43269. Really, its simple. The stream option in NPM literally says "use this for FTP, SSH etc." We now have to add the filters for the jails that we have created. This change will make the visitors IP address appear in the access and error logs. Scheme: http or https protocol that you want your app to respond. 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'm assuming this should be adjusted relative to the specific location of the NPM folder? Sign in Same thing for an FTP server or any other kind of servers running on the same machine. Forward hostname/IP: loca IP address of your app/service. So I assume you don't have docker installed or you do not use the host network for the fail2ban container. We need to enable some rules that will configure it to check our Nginx logs for patterns that indicate malicious activity. So in all, TG notifications work, but banning does not. Any guidance welcome. 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. 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. Have you correctly bind mounted your logs from NPM into the fail2ban container? 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" When started, create an additional chain off the jail name. Forward port: LAN port number of your app/service. I want to try out this container in a production environment but am hesitant to do so without f2b baked in. If not, you can install Nginx from Ubuntus default repositories using apt. Sign in If you set up email notifications, you should see messages regarding the ban in the email account you provided. That way you don't end up blocking cloudflare. Check out our offerings for compute, storage, networking, and managed databases. Modify the destemail directive with this value. 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. WebTo 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 Regarding Cloudflare v4 API you have to troubleshoot. And those of us with that experience can easily tweak f2b to our liking. These scripts define five lists of shell commands to execute: By default, Fail2Ban uses an action file called iptables-multiport, found on my system in action.d/iptables-multiport.conf. PTIJ Should we be afraid of Artificial Intelligence? Once these are set, run the docker compose and check if the container is up and running or not. --The same result happens if I comment out the line "logpath - /var/log/npm/*.log". Would be great to have fail2ban built in like the linuxserver/letsencrypt Docker container! The above filter and jail are working for me, I managed to block myself. It works for me also. LoadModule cloudflare_module. My mail host has IMAP and POP proxied, meaning their bans need to be put on the proxy. Graphs are from LibreNMS. I'm very new to fail2ban need advise from y'all. It's completely fine to let people know that Cloudflare can, and probably will, collect some of your data if you use them. Update the local package index and install by typing: The fail2ban service is useful for protecting login entry points. Proxy: HAProxy 1.6.3 My setup looks something like this: Outside -> Router -> NGINX Proxy Manager -> Different Subdomains -> Different Servers. Crap, I am running jellyfin behind cloudflare. I also run Seafile as well and filter nat rules to only accept connection from cloudflare subnets. In this guide, we will demonstrate how to install fail2ban and configure it to monitor your Nginx logs for intrusion attempts. 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. to your account, Please consider fail2ban Weve updated the /etc/fail2ban/jail.local file with some additional jail specifications to match and ban a larger range of bad behavior.

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