Maybe recheck for login credentials and ensure your API token is correct. 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. 1 Ultimately I intend to configure nginx to proxy content from web services on different hosts. Thanks. Description. Generally this is set globally, for all jails, though individual jails can change the action or parameters themselves. Fail2ban can scan many different types of logs such as Nginx, Apache and ssh logs. Then configure Fail2ban to add (and remove) the offending IP addresses to a deny-list which is read by Nginx. [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. I would also like to vote for adding this when your bandwidth allows. Otherwise, Fail2ban is not able to inspect your NPM logs!". And even tho I didn't set up telegram notifications, I get errors about that too. So I have 2 "working" iterations, and need to figure out the best from each and begin to really understand what I'm doing, rather than blindly copying others' logs. @mastan30 I'm using cloudflare for all my exposed services and block IP in cloudflare using the API. This will prevent our changes from being overwritten if a package update provides a new default file: Open the newly copied file so that we can set up our Nginx log monitoring: We should start by evaluating the defaults set within the file to see if they suit our needs. In terminal: $ sudo apt install nginx Check to see if Nginx is running. 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 This will let you block connections before they hit your self hosted services. @jc21 I guess I should have specified that I was referring to the docker container linked in the first post (unRAID). 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. The unban action greps the deny.conf file for the IP address and removes it from the file. Domain names: FQDN address of your entry. This will let you block connections before they hit your self hosted services. Your blog post seems exactly what I'm looking for, but I'm not sure what to do about this little piece: If you are using Cloudflare proxy, ensure that your setup only accepts requests coming from the Cloudflare CDN network by whitelisting Cloudflare's IPv4 and IPv6 addresses on your server for TCP/80 (HTTP) and TCP/443 (HTTPS). 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. Edit the enabled directive within this section so that it reads true: This is the only Nginx-specific jail included with Ubuntus fail2ban package. Because this also modifies the chains, I had to re-define it as well. Well occasionally send you account related emails. Next, we can copy the apache-badbots.conf file to use with Nginx. https://www.reddit.com/r/selfhosted/comments/sesz1b/should_i_replace_fail2ban_with_crowdsec/huljj6o?utm_medium=android_app&utm_source=share&context=3. So I assume you don't have docker installed or you do not use the host network for the fail2ban container. Asked 4 months ago. Well, iptables is a shell command, meaning I need to find some way to send shell commands to a remote system. Welcome to your friendly /r/homelab, where techies and sysadmin from everywhere are welcome to share their labs, projects, builds, etc. Press J to jump to the feed. 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? By default, this is set to 600 seconds (10 minutes). Well, i did that for the last 2 days but i cant seem to find a working answer. 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. 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. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, How to Unban an IP properly with Fail2Ban, Permanent block of IP after n retries using fail2ban. This one mixes too many things together. I already used Cloudflare for DNS management only since my initial registrar had some random limitations of adding subdomains. It seemed to work (as in I could see some addresses getting banned), for my configuration, but I'm not technically adept enough to say why it wouldn't for you. Just need to understand if fallback file are useful. I've followed the instructions to a T, but run into a few issues. Im at a loss how anyone even considers, much less use Cloudflare tunnels. We dont need all that. WebApache. @dariusateik the other side of docker containers is to make deployment easy. These filter files will specify the patterns to look for within the Nginx logs. To learn more, see our tips on writing great answers. This textbox defaults to using Markdown to format your answer. I get a Telegram notification for server started/shut down, but the service does not ban anything, or write to the logfile. I want to try out this container in a production environment but am hesitant to do so without f2b baked in. Proxying Site Traffic with NginX Proxy Manager. 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 can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link! Check out our offerings for compute, storage, networking, and managed databases. I just cobbled the fail2ban "integration" together from various tutorials, with zero understanding of iptables or docker networking etc. To learn how to set up a user with sudo privileges, follow our initial server setup guide for Ubuntu 14.04. If not, you can install Nginx from Ubuntus default repositories using apt. 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. By default, fail2ban is configured to only ban failed SSH login attempts. For instance, for the Nginx authentication prompt, you can give incorrect credentials a number of times. Configure fail2ban so random people on the internet can't mess with your server. Luckily, its not that hard to change it to do something like that, with a little fiddling. If you do not pay for a service then you are the product. As currently set up I'm using nginx Proxy Manager with nginx in Docker containers. Otherwise fail2ban will try to locate the script and won't find it. I'd suggest blocking up ranges for china/Russia/India/ and Brazil. How does the NLT translate in Romans 8:2? Ultimately, it is still Cloudflare that does not block everything imo. Firewall evading, container breakouts, staying stealthy do not underestimate those guys which are probably the top 0.1% of hackers. 100 % agree - > On the other hand, f2b is easy to add to the docker container. Right, they do. Please let me know if any way to improve. The one thing I didnt really explain is the actionflush line, which is defines in iptables-common.conf. One of the first items to look at is the list of clients that are not subject to the fail2ban policies. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? 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. On one hand, this project's goals was for the average joe to be able to easily use HTTPS for their incoming websites; not become a network security specialist. EDIT: The issue was I incorrectly mapped my persisted NPM logs. Maybe something like creating a shared directory on my proxy, let the webserver log onto that shared directory and then configure fail2ban on my proxy server to read those logs and block ips accordingly? It works for me also. 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. 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 Token and email in the conf are correct, so what then? 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. 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. It works for me also. This results in Fail2ban blocking traffic from the proxy IP address, preventing visitors from accessing the site. 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. Have you correctly bind mounted your logs from NPM into the fail2ban container? 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? To do so, you will have to first set up an MTA on your server so that it can send out email. 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. I've tried both, and both work, so not sure which is the "most" correct. Since most people don't want to risk running plex/jellyfin via cloudflare tunnels (or cloudflare proxy). I'm not an regex expert so any help would be appreciated. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. But if you How would fail2ban work on a reverse proxy server? Just because we are on selfhosted doesn't mean EVERYTHING needs to be selfhosted. Your browser does not support the HTML5