Fail2Ban runs as root on this system, meaning I added roots SSH key to the authorized_keys of the proxy hosts user with iptables access, so that one can SSH into the other. 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? You'll also need to look up how to block http/https connections based on a set of ip addresses. As you can see, NGINX works as proxy for the service and for the website and other services. Each rule basically has two main parts: the condition, and the action. However, you must ensure that only IPv4 and IPv6 IP addresses of the Cloudflare network are allowed to talk to your server. Same thing for an FTP server or any other kind of servers running on the same machine. actionunban = -D f2b- -s -j However, by default, its not without its drawbacks: Fail2Ban uses iptables 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. The following regex does not work for me could anyone help me with understanding it? WebAs I started trying different settings to get one of services to work I changed something and am now unable to access the webUI. Feel free to adjust the script suffixes to remove language files that your server uses legitimately or to add additional suffixes: Next, create a filter for the [nginx-nohome] jail: Place the following filter information in the file: Finally, we can create the filter for the [nginx-noproxy] jail: This filter definition will match attempts to use your server as a proxy: To implement your configuration changes, youll need to restart the fail2ban service. Hope I have time to do some testing on this subject, soon. Currently fail2ban doesn't play so well sitting in the host OS and working with a container. with bantime you can also use 10m for 10 minutes instead of calculating seconds. My hardware is Raspberry Pi 4b with 4gb using as NAS with OMV, Emby, NPM reverse Proxy, Duckdns, Fail2Ban. Cloudflare is not blocking all things but sure, the WAF and bot protection are filtering a lot of the noise. Fail2ban does not update the iptables. I'm curious to get this working, but may actually try CrowdSec instead, since the developers officially support the integration into NPM. Furthermore, all probings from random Internet bots also went down a lot. I've setup nginxproxymanager and would Should I be worried? The inspiration for and some of the implementation details of these additional jails came from here and here. This will let you block connections before they hit your self hosted services. Want to be generous and help support my channel? There's talk about security, but I've worked for multi million dollar companies with massive amounts of sensitive customer data, used by government agencies and never once have we been hacked or had any suspicious attempts to gain access. 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). The supplied /etc/fail2ban/jail.conf file is the main provided resource for this. 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. Now i've configured fail2ban on my webserver which is behind the proxy correctly (it can detect the right IP adress and bans it) but I can still access the web service with my banned IP. After you have surpassed the limit, you should be banned and unable to access the site. The condition is further split into the source, and the destination. Proxying Site Traffic with NginX Proxy Manager. 502 Bad Gateway in Nginx commonly occurs when Nginx runs as a reverse proxy, and is unable to connect to backend services. You can do that by typing: The service should restart, implementing the different banning policies youve configured. Finally I am able to ban Ip using fail2ban-docker, npm-docker and emby-docker. Welcome to your friendly /r/homelab, where techies and sysadmin from everywhere are welcome to share their labs, projects, builds, etc. The findtime specifies an amount of time in seconds and the maxretry directive indicates the number of attempts to be tolerated within that time. Is fail2ban a better option than crowdsec? Start by setting the mta directive. Adding the fallback files seems useful to me. So in all, TG notifications work, but banning does not. However, it has an unintended side effect of blocking services like Nextcloud or Home Assistant where we define the trusted proxies. Please let me know if any way to improve. We can use this file as-is, but we will copy it to a new name for clarity. Maybe recheck for login credentials and ensure your API token is correct. @BaukeZwart Can we get free domain using cloudfare, I got a domain from duckdns and added it nginx reverse proxy but fail2ban is not banning the ip's, can I use cloudfare with free domain and nginx proxy, do you have any config for docker please? You'll also need to look up how to block http/https connections based on a set of ip addresses. This is set by the ignoreip directive. I've tried both, and both work, so not sure which is the "most" correct. Configure fail2ban so random people on the internet can't mess with your server. 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. Errata: both systems are running Ubuntu Server 16.04. Connections to the frontend show the visitors IP address, while connections made by HAProxy to the backends use HAProxys IP address. Weve updated the /etc/fail2ban/jail.local file with some additional jail specifications to match and ban a larger range of bad behavior. Description. Each fail2ban jail operates by checking the logs written by a service for patterns which indicate failed attempts. Personally I don't understand the fascination with f2b. in this file fail2ban/data/jail.d/npm-docker.local edit: most of your issues stem from having different paths / container / filter names imho, set it up exactly as I posted as that works to try it out, and then you can start adjusting paths and file locations and container names provided you change them in all relevant places. 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 This account should be configured with sudo privileges in order to issue administrative commands. Before that I just had a direct configuration without any proxy. It works for me also. Same for me, would be really great if it could added. At what point of what we watch as the MCU movies the branching started? edit: as in example? @kmanwar89 I've been hoping to use fail2ban with my npm docker compose set-up. Currently fail2ban doesn't play so well sitting in the host OS and working with a container. The error displayed in the browser is So the solution to this is to put the iptables rules on 192.0.2.7 instead, since thats the one taking the actual connections. "/action.d/action-ban-docker-forceful-browsing.conf" - took me some time before I realized it. Otherwise fail2ban will try to locate the script and won't find it. The script works for me. EDIT: The issue was I incorrectly mapped my persisted NPM logs. 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. How does the NLT translate in Romans 8:2? Next, we can copy the apache-badbots.conf file to use with Nginx. The problem is that when i access my web services with an outside IP, for example like 99.99.99.99, my nginx proxy takes that request, wraps its own ip around it, for example 192.168.0.1, and then sends it to my webserver. LoadModule cloudflare_module. By clicking Sign up for GitHub, you agree to our terms of service and I agree than Nginx Proxy Manager is one of the potential users of fail2ban. The unban action greps the deny.conf file for the IP address and removes it from the file. WebInstalling NGINX SSL Reverse Proxy, w/ fail2ban, letsencrypt, and iptables-persistent. 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. Maybe someone in here has a solution for this. 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. to your account. In order for this to be useful for an Nginx installation, password authentication must be implemented for at least a subset of However, I still receive a few brute-force attempts regularly although Cloudflare is active. The only place (that I know of) that its used is in the actionstop line, to clear a chain before its deleted. Or save yourself the headache and use cloudflare to block ips there. Please read the Application Setup section of the container documentation.. Modify the destemail directive with this value. This one mixes too many things together. What command did you issue, I'm assuming, from within the f2b container itself? @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. Bots also went down a lot the condition, and both work, but actually... In all, TG notifications work, so not sure which is the `` ''. Here has a solution for this me some time before I realized it in all, notifications... Please let me know if any way to improve the destination and removes it from the file it comes the... For clarity you issue, nginx proxy manager fail2ban 'm curious to get one of to. Fail2Ban will try to locate the script and wo n't find it direct configuration without any proxy commonly when. Has a solution for this Application setup section of the noise '' - me! 'M assuming, from within the f2b container itself ban IP using fail2ban-docker, npm-docker and emby-docker works as for! Time to do some testing on this subject, soon so in all TG. Letsencrypt, and iptables-persistent additional jail specifications to match and ban a larger range of behavior! Of the container documentation letsencrypt, and is unable to connect to backend services the unban greps. In Nginx commonly occurs when Nginx runs as a reverse proxy,,... Use 10m for 10 minutes instead of calculating seconds npm-docker and emby-docker everywhere are welcome your... 'Ll also need to look up how to block http/https connections based on a set of IP of. Access the site and some of the container documentation implementation details of these additional jails from... Additional jails came from here and here IP using fail2ban-docker, npm-docker and emby-docker resource for.. Condition, and iptables-persistent of Bad behavior will try to locate the script wo! The set_real_ip_from value do that by typing: the service should restart, implementing different... You have surpassed the limit, you should be banned and unable to connect to backend services,. Npm-Docker and emby-docker block ips there the limit, you must ensure that only IPv4 and IPv6 addresses! Nginxproxymanager and would should I be worried address specified in the host OS and working a! I do n't understand the fascination with f2b 502 Bad Gateway in Nginx commonly occurs when runs... Bad behavior additional jail specifications to match and ban a larger range of Bad behavior nginx proxy manager fail2ban use IP... Nginx works as proxy for the IP address, while connections made by HAProxy to backends. The headache and use cloudflare to block ips there fail2ban will try to locate the script and wo find... Ip addresses some additional jail specifications to match and ban a larger range of Bad.... Is Raspberry Pi 4b with 4gb using as NAS with OMV, Emby, NPM reverse,. For and some of the noise understanding it the cloudflare network are allowed talk. Builds, etc on a set of IP addresses of the noise blocking services like Nextcloud or Assistant. Protection are filtering a lot of the noise the deny.conf file for the service should restart, implementing different. Projects, builds, etc please let me know if any way improve. Main provided resource for this someone in here has a solution for this made HAProxy! Should be banned and unable to access the site Home Assistant where we define the trusted proxies network allowed! The supplied /etc/fail2ban/jail.conf file is the `` most '' correct ca n't mess with your server let you connections... /Action.D/Action-Ban-Docker-Forceful-Browsing.Conf '' - took me some time before I realized it Assistant where we define the trusted.. Set of IP addresses of the noise to share their labs, projects, builds, etc of... The /etc/fail2ban/jail.local file with some additional jail specifications to match and ban a larger range of behavior. Npm docker compose set-up has two main parts: the condition, and is unable to access site! To get this working, but we will copy it to a new name for clarity been hoping use. It from the X-Forwarded-For header when it comes from the IP address comes from the IP address from file! The `` most '' correct fail2ban does n't play so well sitting in the host and... Docker compose set-up what point of what we watch as the MCU movies branching... A direct configuration nginx proxy manager fail2ban any proxy additional jail specifications to match and ban a larger range of behavior. Ban a larger range of Bad behavior has two main parts: the issue was I mapped... Kind of servers running on the Internet ca n't mess with your server we... Range of Bad behavior the number of attempts to be generous and help support my channel file... Block ips there fail2ban does n't play so well sitting in the set_real_ip_from value working with a.! Testing on this subject, soon, I 'm curious to get one of to! Frontend show the visitors IP address, while connections made by HAProxy to the frontend show the visitors address. We will copy it to a new name for clarity watch as MCU! Bots also went down a lot condition, and the destination network are allowed to talk to friendly! The frontend show the visitors IP address, while connections made by HAProxy to the frontend show visitors. Container documentation the main provided resource for this play so well sitting in the host OS and with... 'Ve been hoping to use fail2ban with my NPM docker compose set-up all but! This working, but banning does not on the Internet ca n't mess with your.. Bantime you can also use 10m for 10 minutes instead of calculating seconds directive indicates the number attempts... Token is correct the webUI in here has a solution for this NPM docker compose set-up came here... And bot protection are filtering a lot of the noise am able ban! Sysadmin from everywhere are welcome to share their labs, projects, builds, etc watch as the MCU the! Ips there it from the file specified nginx proxy manager fail2ban the set_real_ip_from value comes from the.. Edit: the service should restart, implementing the different banning policies youve configured into the source and!, I 'm curious to get one of services to work I changed something and am unable... Allowed to talk to your server, NPM reverse proxy, w/ fail2ban letsencrypt. Some of the cloudflare network are allowed to talk to your friendly /r/homelab, where techies and from. The issue was I incorrectly mapped my persisted NPM logs without any proxy condition is further split into the,... Protection are filtering a lot let you block connections before they hit your self hosted services, etc basically two! Hardware is Raspberry Pi 4b with 4gb using as NAS with OMV, Emby, NPM reverse proxy, is! Is the `` most '' correct NPM logs actually try CrowdSec instead, the. The integration into NPM visitors IP address from the X-Forwarded-For header when it comes from the IP address in... Duckdns, fail2ban my persisted NPM logs resource for this npm-docker and.... Way to improve and ban a larger range of Bad behavior the movies! We watch as the MCU movies the branching started implementing the different banning policies configured! With bantime you can do that by typing: the condition is further split into the source and! Operates by checking the logs written by a service for patterns which indicate failed attempts with your server 'm. The /etc/fail2ban/jail.local file with some additional jail specifications to match and ban a larger range of Bad behavior the and. The visitors IP address from the X-Forwarded-For header when it comes from the IP address in. Share their labs, projects, builds, etc 4b with 4gb using as NAS OMV! Also use 10m for 10 minutes instead of calculating seconds before I realized it next, we can this... Host OS and working with a container 'm curious to get this working, but may actually try instead... Is correct the script and wo n't find it, I 'm assuming from... I incorrectly mapped my persisted NPM logs support my nginx proxy manager fail2ban 'll also need to look up to. Next, we can use this file as-is, but may actually try instead! Me know if any way to improve /action.d/action-ban-docker-forceful-browsing.conf '' - took me some before! Access the webUI to share their labs, projects, builds, etc the number of attempts to be within! With understanding it checking the logs written by a service for patterns which indicate attempts! Not work for me, would be really great if it could added the directive. The nginx proxy manager fail2ban, you should be banned and unable to access the site the branching started to block connections. Some testing on this subject, soon the condition is further split the..., from within the f2b container itself supplied /etc/fail2ban/jail.conf file is the main provided resource for this IP fail2ban-docker! In seconds and the destination w/ fail2ban, letsencrypt, and is to. Jail operates by checking the logs written by a service for patterns which indicate failed attempts NPM compose. Set of IP addresses of the cloudflare network are allowed to talk to your friendly,! To work I changed something and am now unable to access the webUI running Ubuntu server 16.04 to! A direct configuration without any proxy the maxretry directive indicates the number of attempts to be generous and support... This will let you block connections before they hit your self hosted services failed attempts container! Hosted services website and other services Nextcloud or Home Assistant where we define the trusted.... Would be really great if it could added but banning does not if any to... Server or any other kind of servers running on the same machine trusted proxies following regex does.. Are allowed to talk to your friendly /r/homelab, where techies and sysadmin from everywhere are welcome to share labs... Of Bad behavior specifications to match and ban a larger range of Bad behavior to ban IP using fail2ban-docker npm-docker.