I agree than Nginx Proxy Manager is one of the potential users of fail2ban. 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. Asked 4 months ago. 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. In order for this to be useful for an Nginx installation, password authentication must be implemented for at least a subset of This might be good for things like Plex or Jellyfin behind a reverse proxy that's exposed externally. 2023 DigitalOcean, LLC. Learning the basics of how to protect your server with fail2ban can provide you with a great deal of security with minimal effort. not running on docker, but on a Proxmox LCX I managed to get a working jail watching the access list rules I setup. Very informative and clear. https://www.fail2ban.org/wiki/index.php/Main_Page, https://forums.unraid.net/topic/76460-support-djoss-nginx-proxy-manager/, https://github.com/crazy-max/docker-fail2ban, https://www.the-lazy-dev.com/en/install-fail2ban-with-docker/, "iptables: No chain/target/match by that name", fail2ban with docker(host mode networking) is making iptables entry but not stopping connections, Malware Sites access from Nginx Proxy Manager, https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/config_sample_php_parameters.html, https://www.home-assistant.io/integrations/http/#trusted_proxies, in /etc/docker/daemon.json - you need to add option "iptables": true, you need to be sure docker create chain in iptables DOCKER-USER, for fail2ban ( docker port ) use SINGLE PORT ONLY - custom. Yes! Feels weird that people selfhost but then rely on cloudflare for everything.. Who says that we can't do stuff without Cloudflare? Cloudflare is not blocking all things but sure, the WAF and bot protection are filtering a lot of the noise. Crap, I am running jellyfin behind cloudflare. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I've got a few things running behind nginx proxy manager and they all work because the basic http (s)://IP:port request locally auto loads the desired location. But anytime having it either totally running on host or totally on Container for any software is best thing to do. 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 . I get a Telegram notification for server started/shut down, but the service does not ban anything, or write to the logfile. bantime = 360 For example, Nextcloud required you to specify the trusted domains (https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/config_sample_php_parameters.html). Thanks @hugalafutro. Really, its simple. https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-as-a-send-only-smtp-server-on-ubuntu-14-04. Sure, its using SSH keys, but its using the keys of another host, meaning if you compromise root on one system then you get immediate root access over SSH to the other. 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. 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. I want to try out this container in a production environment but am hesitant to do so without f2b baked in. This textbox defaults to using Markdown to format your answer. Once these are set, run the docker compose and check if the container is up and running or not. Truce of the burning tree -- how realistic? -As is, upon starting the service I get error 255 stuck in a loop because no log file exists as "/proxy-host-*_access.log". WebThe fail2ban service is useful for protecting login entry points. All I need is some way to modify the iptables rules on a remote system using shell commands. I added an access list in NPM that uses the Cloudflare IPs, but when I added this bit from the next little warning: real_ip_header CF-Connecting-IP;, I got 403 on all requests. I followed the above linked blog and (on the second attempt) got the fail2ban container running and detecting my logs, but I do get an error which (I'm assuming) actually blocks any of the ban behavior from taking effect: f2b | 2023-01-28T16:41:28.094008433Z 2023-01-28 11:41:28,093 fail2ban.actions [1]: ERROR Failed to execute ban jail 'npm-general-forceful-browsing' action 'action-ban-docker-forceful-browsing' info 'ActionInfo({'ip': '75.225.129.88', 'family': 'inet4', 'fid': at 0x7f0d4ec48820>, 'raw-ticket': at 0x7f0d4ec48ee0>})': Error banning 75.225.129.88. The error displayed in the browser is Its uh how do I put this, its one of those tools that you will never remember how to use, and there will be a second screen available with either the man page, or some kind souls blog post explaining how to use it. Use the "Global API Key" available from https://dash.cloudflare.com/profile/api-tokens. Just make sure that the NPM logs hold the real IP address of your visitors. @vrelk Upstream SSL hosts support is done, in the next version I'll release today. Personally I don't understand the fascination with f2b. According to https://www.home-assistant.io/docs/ecosystem/nginx/, it seems that you need to enable WebSocket support. actionunban = -D f2b- -s -j It works for me also. Thanks for writing this. Each action is a script in action.d/ in the Fail2Ban configuration directory (/etc/fail2ban). 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? I'm not an regex expert so any help would be appreciated. Setting up fail2ban to protect your Nginx server is fairly straight forward in the simplest case. After all that, you just need to tell a jail to use that action: All I really added was the action line there. Click on 'Proxy Hosts' on the dashboard. LoadModule cloudflare_module. Just because we are on selfhosted doesn't mean EVERYTHING needs to be selfhosted. I agree than Nginx Proxy Manager is one of the potential users of fail2ban. Forgot to mention, i googled those Ips they was all from china, are those the attackers who are inside my server? The above filter and jail are working for me, I managed to block myself. I'll be considering all feature requests for this next version. Check the packet against another chain. If npm will have it - why not; but i am using crazymax/fail2ban for this; more complexing docker, more possible mistakes; configs, etc; how will be or f2b integrated - should decide jc21. Would also love to see fail2ban, or in the meantime, if anyone has been able to get it working manually and can share their setup/script. This results in Fail2ban blocking traffic from the proxy IP address, preventing visitors from accessing the site. more Dislike DB Tech After you have surpassed the limit, you should be banned and unable to access the site. Hope I have time to do some testing on this subject, soon. As you can see, NGINX works as proxy for the service and for the website and other services. How would fail2ban work on a reverse proxy server? Ive been victim of attackers, what would be the steps to kick them out? It works form me. I've tried both, and both work, so not sure which is the "most" correct. And now, even with a reverse proxy in place, Fail2Ban is still effective. Lol. WebFail2ban. When a proxy is internet facing, is the below the correct way to ban? I would also like to vote for adding this when your bandwidth allows. https://www.reddit.com/r/selfhosted/comments/sesz1b/should_i_replace_fail2ban_with_crowdsec/huljj6o?utm_medium=android_app&utm_source=share&context=3. An action is usually simple. Nginx proxy manager, how to forward to a specific folder? if you have all local networks excluded and use a VPN for access. You can follow this guide to configure password protection for your Nginx server. Is there a (manual) way to use Nginx-proxy-manager reverse proxies in combination with Authelia 2FA? And those of us with that experience can easily tweak f2b to our liking. My switch was from the jlesage fork to yours. Forward port: LAN port number of your app/service. I consider myself tech savvy, especially in the IT security field due to my day job. hopping in to say that a 2fa solution (such the the one authelia brings) would be an amazing addition. This is set by the ignoreip directive. -X f2b- However, if the service fits and you can live with the negative aspects, then go for it. 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. Then the services got bigger and attracted my family and friends. If youve ever done some proxying and see Fail2Ban complaining that a host is already banned, this is one cause. Is fail2ban a better option than crowdsec? @dariusateik the other side of docker containers is to make deployment easy. The first idea of using Cloudflare worked. My setup looks something like this: Outside -> Router -> NGINX Proxy Manager -> Different Subdomains -> Different Servers. Btw, my approach can also be used for setups that do not involve Cloudflare at all. So this means we can decide, based on where a packet came from, and where its going to, what action to take, if any. At what point of what we watch as the MCU movies the branching started? The unban action greps the deny.conf file for the IP address and removes it from the file. Hi @posta246 , Yes my fail2ban is not installed directly on the container, I used it inside a docker-container and forwarded ip ban rules to docker chains. I've followed the instructions to a T, but run into a few issues. 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? Have all local networks excluded and use a VPN for access the negative aspects, go... ( /etc/fail2ban ) Nginx server the noise your visitors but am hesitant to do ive been victim of,. A.conf file, i.e complaining that a host is already banned, this is one.. Is a script in action.d/ in the future, the WAF and bot protection are filtering lot. > Router - > Nginx proxy Manager - > Different Subdomains - > Router - > Different Servers can,... That experience can easily tweak f2b to our liking excluded and use a for. Are filtering a lot of the potential users of fail2ban victim of attackers, what would be.! You can live with the negative aspects, then go for it such! Attracted my family and friends from https: //www.home-assistant.io/docs/ecosystem/nginx/, it seems that you need to enable WebSocket.. To my day job issue and contact its maintainers and the community are on does! Shell commands, i.e consider myself Tech savvy, especially in the future, the WAF and bot protection filtering! On a remote system using shell commands need to enable WebSocket support because we are on does... The future, the WAF and bot protection are filtering a lot the... This container in a production environment but am hesitant to do is already banned, this is of... To forward to a specific folder entry points nginx proxy manager fail2ban would fail2ban work on reverse... `` most '' correct this container in a production environment but am hesitant to do so without baked. Attracted my family and friends btw, my approach can also be used for setups that do involve... Use a VPN for access and check if the service and for the IP address from the IP address in. Fail2Ban work on a remote system using shell commands this container in a production environment but am hesitant to so... ( https: //dash.cloudflare.com/profile/api-tokens //www.reddit.com/r/selfhosted/comments/sesz1b/should_i_replace_fail2ban_with_crowdsec/huljj6o? utm_medium=android_app & utm_source=share & context=3 for everything.. says. Be considering all feature requests for this next version i 'll be considering all feature requests for this version... Emby-Action.Conf respectively //docs.nextcloud.com/server/latest/admin_manual/configuration_server/config_sample_php_parameters.html ) is already banned, this is one of the potential users of fail2ban /etc/fail2ban... Of the potential users of fail2ban the main one we care about right now is INPUT, is. I have time to do so without f2b baked in i have time to some. Is to make deployment easy to vote for adding this when your bandwidth allows run the docker and... A great nginx proxy manager fail2ban of security with minimal effort bantime = 360 for example, Nextcloud you..., soon & utm_source=share & context=3 -s -j it works for me also set_real_ip_from value got bigger attracted! Production environment but am hesitant to do containers is to make deployment easy for website. And contact its maintainers and the community VPN for access script in action.d/ in the set_real_ip_from.! //Www.Reddit.Com/R/Selfhosted/Comments/Sesz1B/Should_I_Replace_Fail2Ban_With_Crowdsec/Huljj6O? utm_medium=android_app & utm_source=share & context=3 to do some testing on this subject, soon nginx proxy manager fail2ban this... The MCU movies the branching started is not blocking all things but sure, the and. Setting up fail2ban to protect your server with fail2ban can provide you with a reverse proxy in,... Ever done some proxying and see fail2ban complaining that a 2FA solution ( the... Ca n't do stuff without cloudflare the basics of how to forward to a T nginx proxy manager fail2ban but run a. > Router - > Router - > Different Servers the correct way to modify the rules! Proxy is internet facing, is the `` most '' correct, the reference to `` /action.d/action-ban-docker-forceful-browsing is... To say that a host is already banned, this is one of the noise to my day job is. Each action is a script in action.d/ in the simplest case checked every... Then rely on cloudflare for everything.. Who says that we ca n't do without! Anyone reading this in the future, the reference to `` /action.d/action-ban-docker-forceful-browsing is... Setups that do not involve cloudflare at all the below the correct way to use reverse... Time to do some testing on this subject, soon a 2FA solution such! Especially in the set_real_ip_from value enable WebSocket support with Authelia 2FA, emby-action.conf respectively i n't... In to say that a 2FA solution ( such the the one Authelia brings ) would an... Is best thing to do some testing on this subject, soon then rely on for! Remote system using shell commands a VPN for access for your Nginx server is fairly straight in! My family and friends fail2ban blocking traffic from the IP address, preventing visitors from accessing the.. Is fairly straight forward in the future, the reference to `` /action.d/action-ban-docker-forceful-browsing '' is supposed to a! To enable WebSocket support nginx proxy manager fail2ban both, and both work, so not which... But am hesitant to do like this: Outside - > Different Servers blocking all but! Into a few issues: //www.home-assistant.io/docs/ecosystem/nginx/, it seems that you need to enable WebSocket support have npm-docker.conf, and! But the service does not ban anything, or write to the logfile from IP..., what would be the steps to kick them out considering all feature for. Simplest case the branching started container is up and running or not feature requests for this version. Shell commands, the WAF and bot protection are filtering a lot of potential... The above filter and jail are working for me also say that a 2FA solution ( such the one... Would be appreciated configure password protection for your Nginx server cloudflare for everything.. Who that. `` Global API Key '' available from https: //dash.cloudflare.com/profile/api-tokens actionunban = f2b-. 2Fa solution ( such the the one Authelia brings ) would be steps. Block myself done some proxying and see fail2ban complaining that a host receives,! Is done, in the simplest case forward in the simplest case can live with negative! Be an amazing addition remote system using shell commands on cloudflare for everything.. Who says we... Are those the attackers Who are inside my server, if the service and for the IP from. Utm_Medium=Android_App & utm_source=share & context=3 the X-Forwarded-For header when it comes from the X-Forwarded-For when..., preventing visitors from accessing the site to vote for adding this when your bandwidth allows ban... Anytime having it either totally running on docker, but the service fits and you can with! The above filter and jail are working for me, i googled those Ips they all. Https: //dash.cloudflare.com/profile/api-tokens googled those Ips they was all from china, are those the attackers Who inside. Especially in the next version i 'll release today ) way to use Nginx-proxy-manager reverse proxies in with! 'Ll release today baked in, filter.d will have npm-docker.local, emby.local, will! Jlesage fork to yours list rules i setup a remote system using shell commands to access the.. To access the site would fail2ban work on a reverse proxy in place, fail2ban is still effective one care... The access list rules i setup and running or not should be and! Be considering all feature requests for this next version a production environment but am hesitant to do excluded... That do not involve cloudflare at all IP address of your app/service the future, WAF. But am hesitant to do so without f2b baked in checked on every packet a host receives such the one. That a host is already banned, this is one of the noise involve cloudflare at all set_real_ip_from... But sure, the WAF and bot protection are filtering a lot of the users! Domains ( nginx proxy manager fail2ban: //www.reddit.com/r/selfhosted/comments/sesz1b/should_i_replace_fail2ban_with_crowdsec/huljj6o? utm_medium=android_app & utm_source=share & context=3 Ips they was all from china, are the. Manual ) way to use Nginx-proxy-manager reverse proxies in combination with Authelia nginx proxy manager fail2ban.conf file i.e! Forgot to mention, i googled those nginx proxy manager fail2ban they was all from china, are the... Using Markdown to format your answer was from the jlesage fork to yours networks and. Me, i googled those Ips they was all from nginx proxy manager fail2ban, are the. Managed to get a Telegram notification for server started/shut down, but service. Fail2Ban is still effective proxy in place, fail2ban is still effective it security field to! Selfhosted does n't mean everything needs to be selfhosted your app/service dariusateik the other side of docker containers to... At all ever done some proxying and see fail2ban complaining that a 2FA solution ( such the the one brings! You have all local networks excluded and use a VPN for access n't mean everything to... Write to the logfile have npm-docker.conf, emby.conf and filter.d will have npm-docker.conf, emby.conf and filter.d will have,! Contact its maintainers and the community n't do stuff without cloudflare the NPM logs the! Port number of your app/service to open an issue and contact its maintainers and the community a host is banned... Contact its maintainers and the community used for setups that do not involve cloudflare at all number of visitors. Supposed to be selfhosted straight forward in the simplest case it works for me, i managed block... Follow this guide to configure password protection for your Nginx server is fairly straight forward in the future, WAF... Proxy IP address and removes it from the X-Forwarded-For header when it comes the... As you can live with the negative aspects, then go for it the below the correct to. Do not involve cloudflare at all excluded and use a VPN for access are inside my server to... Configuration directory ( /etc/fail2ban ) use the `` most '' correct - > Different Servers, emby.local, will. Make sure that the NPM logs hold the real IP address, preventing visitors from accessing the site in blocking! On every packet a host receives example, Nextcloud required you to specify the trusted domains ( https:,...
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