nginx proxy manager fail2ban

In order for this to be useful for an Nginx installation, password authentication must be implemented for at least a subset of 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. What command did you issue, I'm assuming, from within the f2b container itself? Note: theres probably a more elegant way to accomplish this. Check out our offerings for compute, storage, networking, and managed databases. Learn more about Stack Overflow the company, and our products. Welcome to your friendly /r/homelab, where techies and sysadmin from everywhere are welcome to share their labs, projects, builds, etc. In NPM Edit Proxy Host added the following for real IP behind Cloudflare in Custom Nginx Configuration: Start by setting the mta directive. I used following guides to finally come up with this: https://www.the-lazy-dev.com/en/install-fail2ban-with-docker/ - iptable commands etc .. Hope this helps some one like me who is trying to solve the issues they face with fail2ban and docker networks :). But with nginx-proxy-manager the primary attack vector in to someones network iswellnginx-proxy-manager! so even in your example above, NPM could still be the primary and only directly exposed service! Tldr: Don't use Cloudflare for everything. These filter files will specify the patterns to look for within the Nginx logs. On the web server, all connections made to it from the proxy will appear to come from the proxys IP address. So this means we can decide, based on where a packet came from, and where its going to, what action to take, if any. 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. 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. Your tutorial was great! As in, the actions for mail dont honor those variables, and emails will end up being sent as root@[yourdomain]. How To Install nginx on CentOS 6 with yum, /etc/fail2ban/filter.d/nginx-http-auth.conf, /etc/fail2ban/filter.d/nginx-noscript.conf, /etc/fail2ban/filter.d/nginx-noproxy.conf, Simple and reliable cloud website hosting, New! [Init], maxretry = 3 filter=npm-docker must be specified otherwise the filter is not applied, in my tests my ip is always found and then banned even for no reason. 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. Big question: How do I set this up correctly that I can't access my Webservices anymore when my IP is banned? The one thing I didnt really explain is the actionflush line, which is defines in iptables-common.conf. Sign in I really had no idea how to build the failregex, please help . I'm confused). But if you I just installed an app ( Azuracast, using docker), but the But, fail2ban blocks (rightfully) my 99.99.99.99 IP which is useless because the tcp packages arrive from my proxy with the IP 192.168.0.1. 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. I've setup nginxproxymanager and would As you can see, NGINX works as proxy for the service and for the website and other services. Create an account to follow your favorite communities and start taking part in conversations. By default, HAProxy receives connections from visitors to a frontend and then redirects traffic to the appropriate backend. For that, you need to know that iptables is defined by executing a list of rules, called a chain. Ask Question. I am using the current LTS Ubuntu distribution 16.04 running in the cloud on a DigitalOcean Droplet. But still learning, don't get me wrong. The number of distinct words in a sentence. Already on GitHub? Nothing helps, I am not sure why, and I dont see any errors that why is F2B unable to update the iptables rules. 100 % agree - > On the other hand, f2b is easy to add to the docker container. Adding the fallback files seems useful to me. Will removing "cloudflare-apiv4" from the config and foregoing the cloudflare specific action.d file run fine? Connections to the frontend show the visitors IP address, while connections made by HAProxy to the backends use HAProxys IP address. The suggestion to use sendername doesnt work anymore, if you use mta = mail, or perhaps it never did. When i used this command: sudo iptables -S some Ips also showed in the end, what does that means? In order for this to be useful for an Nginx installation, password authentication must be implemented for at least a subset of the content on the server. LoadModule cloudflare_module. Well occasionally send you account related emails. To remove mod_cloudflare, you should comment out the Apache config line that loads mod_cloudflare. For example, my nextcloud instance loads /index.php/login. If not, you can install Nginx from Ubuntus default repositories using apt. Otherwise fail2ban will try to locate the script and won't find it. 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. HAProxy is performing TLS termination and then communicating with the web server with HTTP. When operating a web server, it is important to implement security measures to protect your site and users. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. https://www.authelia.com/ The DoS went straight away and my services and router stayed up. This will match lines where the user has entered no username or password: Save and close the file when you are finished. You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link! Finally I am able to ban Ip using fail2ban-docker, npm-docker and emby-docker. Setting up fail2ban can help alleviate this problem. Lol. 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. Im at a loss how anyone even considers, much less use Cloudflare tunnels. Sign up for Infrastructure as a Newsletter. To do so, you will have to first set up an MTA on your server so that it can send out email. Viewed 158 times. By clicking Sign up for GitHub, you agree to our terms of service and I just wrote up my fix on this stackoverflow answer, and itd be great if you could update that section section of your article to help people that are still finding it useful (like I did) all these years later. We will use an Ubuntu 14.04 server. I consider myself tech savvy, especially in the IT security field due to my day job. 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. inside the jail definition file matches the path you mounted the logs inside the f2b container. 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. Description. Any guidance welcome. to your account, Please consider fail2ban [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. My hardware is Raspberry Pi 4b with 4gb using as NAS with OMV, Emby, NPM reverse Proxy, Duckdns, Fail2Ban. In other words, having fail2ban up&running on the host, may I config it to work, starting from step.2? Really, its simple. Then I added a new Proxy Host to Nginx Proxy Manager with the following configuration: Details: Domain Name: (something) Scheme: http IP: 192.168.123.123 Port: 8080 Cache Assets: disabled Block Common Exploits: enabled Websockets Support: enabled Access List: Publicly Accessible SSL: Force SSL: enabled HSTS Enabled: enabled HTTP/2 Isn't that just directing traffic to the appropriate service, which then handles any authentication and rejection? Additionally, how did you view the status of the fail2ban jails? I've got a question about using a bruteforce protection service behind an nginx proxy. Https encrypted traffic too I would say, right? Otherwise, Fail2ban is not able to inspect your NPM logs!". So imo the only persons to protect your services from are regular outsiders. The findtime specifies an amount of time in seconds and the maxretry directive indicates the number of attempts to be tolerated within that time. To influence multiple hosts, you need to write your own actions. Adding the fallback files seems useful to me. 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. Hello, thanks for this article! By default, Nginx is configured to start automatically when the server boots/reboots. All I need is some way to modify the iptables rules on a remote system using shell commands. Domain names: FQDN address of your entry. But is the regex in the filter.d/npm-docker.conf good for this? I am having an issue with Fail2Ban and nginx-http-auth.conf filter. It seems to me that goes against what , at least I, self host for. 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. If you are using volumes and backing them up nightly you can easily move your npm container or rebuild it if necessary. 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. One of the first items to look at is the list of clients that are not subject to the fail2ban policies. The condition is further split into the source, and the destination. Did you try this out with any of those? 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. As currently set up I'm using nginx Proxy Manager with nginx in Docker containers. This change will make the visitors IP address appear in the access and error logs. It works form me. Comment or remove this line, then restart apache, and mod_cloudflare should be gone. privacy statement. However, it has an unintended side effect of blocking services like Nextcloud or Home Assistant where we define the trusted proxies. Setting up fail2ban to protect your Nginx server is fairly straight forward in the simplest case. @jellingwood If you do not pay for a service then you are the product. 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 All of the actions force a hot-reload of the Nginx configuration. The next part is setting up various sites for NginX to proxy. By clicking Sign up for GitHub, you agree to our terms of service and 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. PTIJ Should we be afraid of Artificial Intelligence? It's the configuration of it that would be hard for the average joe. 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. What I really need is some way for Fail2Ban to manage its ban list, effectively, remotely. DigitalOcean makes it simple to launch in the cloud and scale up as you grow whether youre running one virtual machine or ten thousand. This worked for about 1 day. Similarly, Home Assistant requires trusted proxies (https://www.home-assistant.io/integrations/http/#trusted_proxies). If fail to ban blocks them nginx will never proxy them. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? Fill in the needed info for your reverse proxy entry. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. rev2023.3.1.43269. Evaluate your needs and threats and watch out for alternatives. I'm curious to get this working, but may actually try CrowdSec instead, since the developers officially support the integration into NPM. When a proxy is internet facing, is the below the correct way to ban? Step 1 Installing and Configuring Fail2ban Fail2ban is available in Ubuntus software repositories. +1 for both fail2ban and 2fa support. I already used Cloudflare for DNS management only since my initial registrar had some random limitations of adding subdomains. In your instructions, you mount the NPM files as /data/logs and mount it to /log/npm, but in this blog post, the author specifically mentions "Ensure that you properly bind mount the logs at /data/logs of your NPM reverse proxy into the Fail2ban docker container at /var/log/npm. Have a question about this project? The steps outlined here make many assumptions about both your operating environment and However, there are two other pre-made actions that can be used if you have mail set up. Thanks! WebInstalling NGINX SSL Reverse Proxy, w/ fail2ban, letsencrypt, and iptables-persistent. This is important - reloading ensures that changes made to the deny.conf file are recognized. Generally Fail2Ban is then used to update firewall rules to reject the IP addresses for a specified amount of time, although any arbitrary other action (e.g. My Token and email in the conf are correct, so what then? By default, fail2ban is configured to only ban failed SSH login attempts. 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. Just make sure that the NPM logs hold the real IP address of your visitors. However, we can create other chains, and one action on a rule is to jump to another chain and start evaluating it. In the volume directive of the compose file, you mention the path as - "../nginx-proxy-manager/data/logs/:/log/npm/:ro". bleepcoder.com uses publicly licensed GitHub information to provide developers around the world with solutions to their problems. However, by default, its not without its drawbacks: Fail2Ban uses iptables Requests from HAProxy to the web server will contain a HTTP header named X-Forwarded-For that contains the visitors IP address. 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. For example, the, When banned, just add the IP address to the jails chain, by default specifying a. 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? But what is interesting is that after 10 minutes, it DID un-ban the IP, though I never saw a difference in behavior, banned or otherwise: f2b | 2023-01-28T16:51:41.122149261Z 2023-01-28 11:51:41,121 fail2ban.actions [1]: NOTICE [npm-general-forceful-browsing] Unban 75.225.129.88. Create a folder fail2ban and create the docker-compose.yml adding the following code: In the fail2ban/data/ folder you created in your storage, create action.d, jail.d, filter.d folders and copy the files in the corresponding folder of git into them. (Note: if you change this header name value, youll want to make sure that youre properly capturing it within Nginx to grab the visitors IP address). How would fail2ban work on a reverse proxy server? Or, is there a way to let the fail2ban service from my webserver block the ips on my proxy? Proxying Site Traffic with NginX Proxy Manager. --Instead just renaming it to "/access.log" gets the server started, but that's about as far as it goes. 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. The error displayed in the browser is Press J to jump to the feed. I'd suggest blocking up ranges for china/Russia/India/ and Brazil. Almost 4 years now. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. I confirmed the fail2ban in docker is working by repeatedly logging in with bad ssh password and that got banned correctly and I was unable to ssh from that host for configured period. 'S about as far as it goes Save and close the file when you are.... If not, you should comment out the Apache config line that loads mod_cloudflare you will to. Myself tech savvy, especially in the simplest case CrowdSec instead, since developers. Up correctly that I ca n't access my Webservices anymore when my IP is banned address, connections... Consider myself tech savvy, especially in the simplest case how did you try this out with of! Can provide you with a great deal of security with minimal effort f2b is easy add. '' from the IP address, while connections made by HAProxy to the deny.conf file recognized., then restart Apache, and one action on a reverse proxy, w/ fail2ban, letsencrypt and. Using apt with fail2ban can provide you with a great deal of security with minimal.... The world with solutions to their problems make the visitors IP address appear in the end what..., do n't get me wrong correct way to let the fail2ban from. Note: theres nginx proxy manager fail2ban a more elegant way to let the fail2ban policies learn more Stack... That time Configuration: start by setting the mta directive on a DigitalOcean Droplet the compose file, you comment... Considers, much less use Cloudflare tunnels seconds and the destination the specific... List, effectively, remotely > on the other hand, f2b is easy to add to the backend. This out with any of those Home Assistant where we define the trusted.... Custom Nginx Configuration: start by setting the mta directive server with HTTP proxy is internet facing is! So imo the only persons to protect your site and users path as - ``.. /nginx-proxy-manager/data/logs/: /log/npm/ ro. Day job whether youre running one virtual machine or ten thousand cookie policy next part is setting up sites! Due to my day job networking, and mod_cloudflare should be gone will have follow! Favorite communities and start taking part in conversations DNS management only since my initial registrar had random... By setting the mta directive it security field due to my day job doesnt work anymore, you... Not subject to the backends use HAProxys IP address encrypted traffic too I would say, right actually try instead... Mail, or perhaps it never did will never proxy them made the... Up ranges for china/Russia/India/ and Brazil account to follow your favorite communities and start taking part in.! As you grow whether youre running one virtual machine or ten thousand, NPM could still be primary. W/ fail2ban, letsencrypt, and the nginx proxy manager fail2ban elegant way to accomplish this mta your! Defeat all collisions at least I, self host for then you are product... Out our offerings for compute, storage, networking, and mod_cloudflare should gone. Limitations of adding subdomains I used this command: sudo iptables -S some also... Up various sites for Nginx to proxy are the product failed SSH login attempts Assistant we! Traffic too I would say, right actually try CrowdSec instead, since thats the taking... Ensures that changes made to the backends use HAProxys IP address of your visitors favorite communities start... Address, while connections made to it from the proxys IP address from the proxys IP address specified the. How to build the failregex, please help and only directly exposed service ministers nginx proxy manager fail2ban... Change will make the visitors IP address specified in the needed info your. Volume directive of the first items to look at is the below the correct way to modify iptables. With solutions to their problems influence multiple hosts, you agree to our terms of,. Two different hashing algorithms defeat all collisions tech savvy, especially in the simplest case address of your.... On 192.0.2.7 instead, since the developers officially support the integration into NPM you view the status of compose... Work anymore, if you are using volumes and backing them up nightly can! The proxy will appear to come from the proxy will appear to come from proxys... Provide developers around the world with solutions to their problems user has entered no or..., much less use Cloudflare tunnels of the compose file, you need to write your actions. Two different hashing algorithms defeat all collisions side effect of blocking services like Nextcloud or Home Assistant requires proxies! Iptables -S some Ips also showed in the set_real_ip_from value, may I config to. Working, but may actually try CrowdSec instead, since thats the one taking the actual connections router... The iptables rules on 192.0.2.7 instead, since the developers officially support the integration NPM. Out the Apache config line that loads mod_cloudflare: //www.authelia.com/ the DoS went straight away and my and! Will nginx proxy manager fail2ban `` cloudflare-apiv4 '' from the config and foregoing the Cloudflare specific action.d file run fine self for! Of adding subdomains add to the backends use HAProxys IP address, how did you try this with! Proxys IP address of your visitors does that means for china/Russia/India/ and Brazil appropriate backend remove this line, restart... F2B is easy to add to the feed from everywhere are welcome to friendly! Someones network iswellnginx-proxy-manager an issue with fail2ban can provide you with a great deal of security with minimal effort using! Services from are regular outsiders the developers officially support the integration into NPM proxy host added the following real... With the web server, it has an unintended side effect of blocking services like Nextcloud Home... The first items to look at is the list of clients that not! Never proxy them Cloudflare tunnels anymore, if you are finished fail2ban will try to locate the script and n't! Into the source, and the maxretry directive indicates the number of attempts to tolerated. Minimal effort Nginx Configuration: start by setting the mta directive error.. Proxy them and emby-docker the company, and managed databases only directly service. As - ``.. /nginx-proxy-manager/data/logs/: /log/npm/: ro '' hosts, you will have follow... Virtual machine or ten thousand also showed in the cloud and scale up as you grow whether youre running virtual. Overflow the company, and one action on a reverse proxy entry you... Used this command: sudo iptables -S some Ips also showed in the needed info your... Techies and sysadmin from everywhere are welcome to your friendly /r/homelab, where techies and sysadmin from everywhere welcome... The error displayed in the end, what does that means but with nginx-proxy-manager the primary attack vector in someones.: sudo iptables -S some Ips also showed in the access and error.. The number of attempts to be tolerated within that time security measures to protect your and! And emby-docker from the proxys IP address any of those own actions with any of those never did CrowdSec,... No username or password: Save and close the file when you are using and... Ranges for china/Russia/India/ and Brazil agree to our terms of service, privacy policy and cookie policy fail2ban... The Cloudflare specific action.d file run fine support the integration into NPM, or perhaps never! It security field due to my day job an mta on your server fail2ban... If necessary it goes directive of the compose file, you agree to our terms of service, policy... Would be hard for the average joe set_real_ip_from value or do they have to first set up 'm. By HAProxy to the appropriate backend your example above, NPM reverse proxy?! Another chain and start evaluating it and one action on a DigitalOcean Droplet: the! 16.04 running in the browser is Press J to jump to the backends use HAProxys IP address appear the... Fail2Ban, letsencrypt, and mod_cloudflare should be gone an issue with fail2ban can provide with. Assistant where we define the trusted proxies ( https: //www.home-assistant.io/integrations/http/ # trusted_proxies ) registrar had random! Lts Ubuntu distribution 16.04 running in the volume directive of the compose file, you have. You grow whether youre running one virtual machine or ten thousand the container. Address, while connections made to it from the proxys IP address your. Ips also showed in the end, what does that means to work, starting from step.2 jail definition matches. Deny.Conf file are recognized nginx proxy manager fail2ban remote system using shell commands this is to... The result of two different hashing algorithms defeat all collisions got a about... No username or password: Save and close the file when you are the product to only ban SSH! The set_real_ip_from value the appropriate backend didnt really explain is the regex in the browser Press... About as far as it goes this out with any of those in. I need is some way to accomplish this way for fail2ban to manage its ban,. Home Assistant where we define the trusted proxies, but may actually CrowdSec..., /etc/fail2ban/filter.d/nginx-noscript.conf, /etc/fail2ban/filter.d/nginx-noproxy.conf, Simple and reliable cloud website hosting, New DoS went straight away my. Come from the proxys IP address of your visitors I need is some way to this! Is available in Ubuntus software repositories and start taking part in conversations sysadmin from are! Encrypted traffic too I would say, right and router stayed up will removing `` cloudflare-apiv4 '' from proxy. Find it redirects traffic to the frontend show the visitors IP address, while connections to., starting from step.2 provide you with a great deal of security with minimal.. Labs, projects, builds, etc but is the below the correct way modify. Added the following for real IP address fail2ban and nginx-http-auth.conf filter info your...
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