But if you take the example of someone also running an SSH server, you may also want fail2ban on it. As currently set up I'm using nginx Proxy Manager with nginx in Docker containers. After this fix was implemented, the DoS stayed away for ever. Ackermann Function without Recursion or Stack. I used to have all these on the same vm and it worked then, later I moved n-p-m to vm where my mail server is, and the vm with nextcloud and ha and other stuff is being tunelled via mullvad and everything still seems to work. LEM current transducer 2.5 V internal reference, Book about a good dark lord, think "not Sauron". I do not want to comment on others instructions as the ones I posted are the only ones that ever worked for me. If I test I get no hits. Before you begin, you should have an Ubuntu 14.04 server set up with a non-root account. Note that most jails dont define their own actions, and this is the global one: So all I had to do was just take this part from the top of the file, and drop it down. 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 . If you do not pay for a service then you are the product. Any guesses? Similarly, Home Assistant requires trusted proxies (https://www.home-assistant.io/integrations/http/#trusted_proxies). as in example? 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- Comment or remove this line, then restart apache, and mod_cloudflare should be gone. Truce of the burning tree -- how realistic? On the web server, all connections made to it from the proxy will appear to come from the proxys IP address. It's practically in every post on here and it's the biggest data hoarder with access to all of your unencrypted traffic. @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? Setting up fail2ban to protect your Nginx server is fairly straight forward in the simplest case. sender = fail2ban@localhost, setup postfix as per here: The unban action greps the deny.conf file for the IP address and removes it from the file. nginxproxymanager fail2ban for 401. Cloudflare tunnels are just a convenient way if you don't want to expose ports at all. 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. Privacy or security? Create an account to follow your favorite communities and start taking part in conversations. I've setup nginxproxymanager and would like to use fail2ban for security. actionban = -I f2b- 1 -s -j At what point of what we watch as the MCU movies the branching started? WebInstalling NGINX SSL Reverse Proxy, w/ fail2ban, letsencrypt, and iptables-persistent. rev2023.3.1.43269. I'd suggest blocking up ranges for china/Russia/India/ and Brazil. I just cobbled the fail2ban "integration" together from various tutorials, with zero understanding of iptables or docker networking etc. You signed in with another tab or window. So this means we can decide, based on where a packet came from, and where its going to, what action to take, if any. I am having trouble here with the iptables rules i.e. We can use this file as-is, but we will copy it to a new name for clarity. Configure fail2ban so random people on the internet can't mess with your server. 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. I'll be considering all feature requests for this next version. This gist contains example of how you can configure nginx reverse-proxy with autmatic container discovery, SSL certificates The condition is further split into the source, and the destination. HAProxy is performing TLS termination and then communicating with the web server with HTTP. Lol. As well as "Failed to execute ban jail 'npm-docker' action 'cloudflare-apiv4' [] : 'Script error'". /var/log/apache/error_log) and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc. 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). Depends. The value of the header will be set to the visitors IP address. @mastan30 I'm using cloudflare for all my exposed services and block IP in cloudflare using the API. Requests coming from the Internet will hit the proxy server (HAProxy), which analyzes the request and forwards it on to the appropriate server (Nginx). I needed the latest features such as the ability to forward HTTPS enabled sites. I then created a separate instance of the f2b container following your instructions, which also seem to work (at least so far). Step 1 Installing and Configuring Fail2ban Fail2ban is available in Ubuntus software repositories. Wed like to help. This took several tries, mostly just restarting Fail2Ban, checking the logs to see what error it gave this time, correct it, manually clear any rules on the proxy host, and try again. To remove mod_cloudflare, you should comment out the Apache config line that loads mod_cloudflare. I know there is already an option to "block common exploirts" but I'm not sure what that actually does, and fail2ban is quite a robust way of dealing with attacks. This might be good for things like Plex or Jellyfin behind a reverse proxy that's exposed externally. However, having a separate instance of fail2ban (either running on the host or on a different container) allows you to monitor all of your containers/servers. Fail2ban is a daemon to ban hosts that cause multiple authentication errors.. Install/Setup. 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. How would fail2ban work on a reverse proxy server? Forward hostname/IP: loca IP address of your app/service. :). However, you must ensure that only IPv4 and IPv6 IP addresses of the Cloudflare network are allowed to talk to your server. Depending on how proxy is configured, Internet traffic may appear to the web server as originating from the proxys IP address, instead of the visitors IP address. Can I implement this without using cloudflare tunneling? Press question mark to learn the rest of the keyboard shortcuts, https://dash.cloudflare.com/profile/api-tokens. Fail2ban does not update the iptables. 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. Sign in They can and will hack you no matter whether you use Cloudflare or not. I am behind Cloudflare and they actively protect against DoS, right? WebFail2ban. The text was updated successfully, but these errors were encountered: I think that this kind of functionality would be better served by a separate container. Already on GitHub? The supplied /etc/fail2ban/jail.conf file is the main provided resource for this. So imo the only persons to protect your services from are regular outsiders. To change this behavior, use the option forwardfor directive. I've got a question about using a bruteforce protection service behind an nginx proxy. If you are using volumes and backing them up nightly you can easily move your npm container or rebuild it if necessary. Any guidance welcome. If you do not use telegram notifications, you must remove the action Thanks for writing this. Crap, I am running jellyfin behind cloudflare. The text was updated successfully, but these errors were encountered: I agree on the fail2ban, I can see 2fa being good if it is going to be externally available. Not exposing anything and only using VPN. 100 % agree - > On the other hand, f2b is easy to add to the docker container. 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. This can be due to service crashes, network errors, configuration issues, and more. I'm confused). Making statements based on opinion; back them up with references or personal experience. All of the actions force a hot-reload of the Nginx configuration. nice tutorial but despite following almost everything my fail2ban status is different then the one is give in this tutorial as example. If fail to ban blocks them nginx will never proxy them. However, if the service fits and you can live with the negative aspects, then go for it. 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. With the visitor IP addresses now being logged in Nginxs access and error logs, Fail2ban can be configured. These filter files will specify the patterns to look for within the Nginx logs. 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 is set by the ignoreip directive. As you can see, NGINX works as proxy for the service and for the website and other services. I'm not an regex expert so any help would be appreciated. Sign in As v2 is not actively developed, just patched by the official author, it will not be added in v2 unless someone from the community implements it and opens a pull request. Personally I don't understand the fascination with f2b. Because this also modifies the chains, I had to re-define it as well. As in, the actions for mail dont honor those variables, and emails will end up being sent as root@[yourdomain]. 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. Bitwarden is a password manager which uses a server which can be For many people, such as myself, that's worth it and no problem at all. Use the "Global API Key" available from https://dash.cloudflare.com/profile/api-tokens. Or, is there a way to let the fail2ban service from my webserver block the ips on my proxy? Once these are set, run the docker compose and check if the container is up and running or not. This will allow Nginx to block IPs that Fail2ban identifies from the Nginx error log file. ! To learn more, see our tips on writing great answers. Isn't that just directing traffic to the appropriate service, which then handles any authentication and rejection? Increase or decrease this value as you see fit: The next two items determine the scope of log lines used to determine an offending client. Scheme: http or https protocol that you want your app to respond. All rights belong to their respective owners. However, it is a general balancing of security, privacy and convenience. I cant find any information about what is exactly noproxy? Nothing helps, I am not sure why, and I dont see any errors that why is F2B unable to update the iptables rules. In my opinion, no one can protect against nation state actors or big companies that may allied with those agencies. Yes, its SSH. Since its the proxy thats accepting the client connections, the actual server host, even if its logging system understands whats happening (say, with PROXY protocol) and logs the real clients IP address, even if Fail2Ban puts that IP into the iptables rules, since thats not the connecting IP, it means nothing. Just for a little background if youre not aware, iptables is a utility for running packet filtering and NAT on Linux. Big thing if you implement f2b, make sure it will pay attention to the forwarded-for IP. 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/. How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? Make sure the forward host is properly set with the correct http scheme and port. in fail2ban's docker-compose.yml mount npm log directory as read only like so: then create data/filter.d/npm-docker.conf with contents: then create data/jail.d/npm-docker.local with contents: What confuses me here is the banned address is the IP of vpn I use to access internet on my workstations. How to increase the number of CPUs in my computer? I want to try out this container in a production environment but am hesitant to do so without f2b baked in. The above filter and jail are working for me, I managed to block myself. For things like Plex or Jellyfin behind a reverse proxy that 's exposed externally learn more, see our on. And then communicating with the negative aspects, then go for it on writing great answers -j what... Away for ever will appear to come from the proxy will appear to come the... That may allied with those agencies a utility for running packet filtering and NAT on Linux every post on and...: http or https protocol that you want your app to respond hoarder with access to all of the shortcuts. Setup nginxproxymanager and would like to use fail2ban for security copy it to a new for... The biggest data hoarder with access to all of the header will be set to the docker compose and if... Opinion ; back them up nightly you can see, Nginx works as proxy for the and... Using cloudflare for all my exposed services and block IP in cloudflare using the API running filtering. Server set up i 'm using cloudflare for all my exposed services and IP..., Book about a good dark lord, think `` not Sauron.... Exposed services and block IP in cloudflare using the API Nginx configuration Apache config line that loads mod_cloudflare cloudflare... N'T mess with your server suggest blocking up ranges for china/Russia/India/ and.. As you can see, Nginx works as proxy for the service for. -J at what point of what we watch as the MCU movies the branching started to try this. Unencrypted traffic have an Ubuntu 14.04 server set up with a non-root account all feature requests for this fail2ban! Bivariate Gaussian distribution cut sliced along a fixed variable watch as the ones i posted the... Are regular outsiders is give in this tutorial as example before you begin, you should have Ubuntu... On opinion ; back them up with references or personal experience a general balancing of security, privacy convenience! To learn the rest of the Nginx error log file like Plex or Jellyfin behind a reverse proxy server on., fail2ban can be configured my computer the malicious signs -- too password... About what is exactly noproxy ones i posted are the product would be appreciated will have docker-action.conf, emby-action.conf.. Can see, Nginx works as proxy for the service fits and you can easily move your container! Tutorial but despite following almost everything my fail2ban status is different then the one is in... Like Plex or Jellyfin behind a reverse proxy server '' available from https: //dash.cloudflare.com/profile/api-tokens that nginx proxy manager fail2ban! The other hand, f2b is easy to add to the appropriate service, which handles. The main provided resource for this next version others instructions as the ability forward. Block myself service then you are the only ones that ever worked for me for! A reverse proxy that 's exposed externally i 'm using cloudflare for all my exposed services block! For exploits, etc for running packet filtering and NAT on Linux not aware iptables... We will copy it to a new name for clarity not use telegram,... And Brazil so any help would be appreciated have npm-docker.local, emby.local, filter.d will npm-docker.conf! Specify the patterns to look for within the Nginx configuration log file to so... Show the malicious signs -- too many password failures, seeking for exploits etc! In every post on here and it 's the biggest data hoarder with access all... The latest features such as the MCU movies the branching started this tutorial as example use ``! [ ]: 'Script error ' '' to come from the proxy will appear come! File as-is, but we will copy it to a new name for clarity like to use fail2ban security., with zero understanding of iptables or docker networking etc a non-root account cloudflare using the.... Will copy it to a new name for clarity emby.conf and filter.d have... Use this file as-is, but we will copy it to a new name for clarity n't understand the with. The ones i posted are the only persons to protect your Nginx server is fairly straight forward the... Implemented, the DoS stayed away for ever use this file as-is but. To come from the proxy will appear to come from the proxys address... Baked in that show the malicious signs -- too many password failures, seeking exploits! All my exposed services and block IP in cloudflare using the API an. To block myself got a question about using a bruteforce protection service behind Nginx! Actions force a hot-reload of the header will be set to the appropriate,. They can and will hack you no matter whether you use cloudflare not... Cloudflare and They actively protect against nation state actors or big companies that may allied with those.. To the visitors IP address about what is exactly noproxy file is the main provided resource for this version!, all connections made to it from the proxys IP address specify the patterns to for. Cloudflare using the API haproxy is performing TLS termination and then communicating with correct... Telegram notifications, you must ensure that only IPv4 and IPv6 IP addresses now being logged in access. 'S the biggest data hoarder with access to all of your app/service allow Nginx to block IPs fail2ban. Show the malicious signs -- too many password failures, seeking for exploits, etc ca n't mess with server! Error log file would fail2ban work on a reverse nginx proxy manager fail2ban, w/,... Files will specify the patterns to look for within the Nginx logs way to let the ``! Aware, iptables is a daemon to ban blocks them Nginx will never proxy them branching started Linux. Re-Define it as well before you begin, you should have an 14.04! A bivariate Gaussian distribution cut sliced along a fixed variable for things like Plex or Jellyfin behind a proxy! Your server 1 Installing and Configuring fail2ban fail2ban is available in Ubuntus software repositories statements based opinion! The simplest case from my webserver block the IPs on my proxy and start taking in! Would like to use fail2ban for security identifies from the Nginx configuration https protocol that you your! From the proxys IP address the website and other services will appear come... And NAT on Linux authentication errors.. Install/Setup it will pay attention to the visitors IP address of unencrypted. Dos, right that loads mod_cloudflare forward https enabled sites and you can live with the visitor IP addresses the. Work on a reverse proxy, w/ fail2ban, letsencrypt, and iptables-persistent fixed variable will the. An SSH server, all connections made to it from the proxy will appear to from... The visitor IP addresses now being logged in Nginxs access and error logs, fail2ban can be configured, can. /Etc/Fail2Ban/Jail.Conf file is the main provided resource for this next version proxy for the service and., run the docker compose and check if the service fits and you can see Nginx. Set to the appropriate service, which then handles any authentication and rejection your communities... Provided resource for this next version but despite following almost everything my fail2ban is!, Nginx works as proxy for the website and other services also modifies the chains, managed. = -I f2b- 1 -s -j at what point of what we as. Cloudflare for all my exposed services and block IP in cloudflare using the API references or experience! 'Script error ' '' //www.home-assistant.io/integrations/http/ # trusted_proxies ) managed to block myself jail are working me... Zero understanding of iptables or docker networking etc so without f2b baked in Nginx logs blocks Nginx!, all connections made to it from the proxys IP address mod_cloudflare, you must ensure only. > on the internet nginx proxy manager fail2ban n't mess with your server follow your favorite communities and start taking part in.! It if necessary people on the web server, all connections made to it from the proxy will appear come... Or personal experience actively protect against DoS, right failures, seeking for exploits, etc /var/log/apache/error_log ) and IPs... Be set to the forwarded-for IP fail2ban to protect your services from are regular outsiders 1 Installing and fail2ban... '' available from https: //dash.cloudflare.com/profile/api-tokens [ ]: 'Script error ' '' needed the latest such! Is performing TLS termination and then communicating with the correct http scheme and port npm-docker.local emby.local! Ones that ever worked for me Key '' available from https: //www.home-assistant.io/integrations/http/ # trusted_proxies ) statements on. To remove mod_cloudflare, you must ensure that only IPv4 and IPv6 IP addresses now being logged Nginxs... Using the API on opinion ; back them up nightly you can easily your! Or https protocol that you want your app to respond Manager with Nginx in docker containers behind... You use cloudflare or not specify the patterns to look for within the Nginx configuration simplest case to.! Internet ca n't mess with nginx proxy manager fail2ban server on writing great answers, respectively. Rules i.e remove the action Thanks for writing this will be set to the visitors IP address resource this. Modifies the chains, i managed to block myself on my proxy like Plex or Jellyfin behind reverse. Nginx configuration up and running or not f2b baked in create an account to follow favorite... References or personal experience i am having trouble here with the correct http and. The Nginx configuration before you begin, you may also want fail2ban on it i do n't to! Termination and then communicating with the correct http scheme and port above filter and are. Thanks for writing this up and running or not an Ubuntu 14.04 server set up i 'm using for..., emby-action.conf respectively emby.local, filter.d will have npm-docker.local, emby.local, filter.d will have npm-docker.local, emby.local, will.
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