To exclude the complexities of web service setup from the issues of configuring the reverse proxy, I have set up web servers with static content. But, when you need it, its indispensable. EDIT: (In the f2b container) Iptables doesn't any any chain/target/match by the name "DOCKER-USER". Setting up fail2ban is also a bit more advanced then firing up the nginx-proxy-manager container and using a UI to easily configure subdomains. Just because we are on selfhosted doesn't mean EVERYTHING needs to be selfhosted. So hardening and securing my server and services was a non issue. The key defined by the proxy_cache_key directive usually consists of embedded variables (the default key, $scheme$proxy_host$request_uri, has three variables). Just for a little background if youre not aware, iptables is a utility for running packet filtering and NAT on Linux. Want to be generous and help support my channel? Use the "Global API Key" available from https://dash.cloudflare.com/profile/api-tokens. i.e. After a while I got Denial of Service attacks, which took my services and sometimes even the router down. Just Google another fail2ban tutorial, and you'll get a much better understanding. Protecting your web sites and applications with firewall policies and restricting access to certain areas with password authentication is a great starting point to securing your system. The main one we care about right now is INPUT, which is checked on every packet a host receives. 2023 DigitalOcean, LLC. Google "fail2ban jail nginx" and you should find what you are wanting. Bitwarden is a password manager which uses a server which can be 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. Always a personal decision and you can change your opinion any time. I want to try out this container in a production environment but am hesitant to do so without f2b baked in. fail2ban :: wiki :: Best practice # Reduce parasitic log-traffic, The open-source game engine youve been waiting for: Godot (Ep. 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. First, create a new jail: This jail will monitor Nginxs error log and perform the actions defined below: The ban action will take the IP address that matches the jail rules (based on max retry and findtime), prefix it with deny, and add it to the deny.conf file. If you do not use telegram notifications, you must remove the action reference in the jail.local as well as action.d scripts. See fail2ban :: wiki :: Best practice # Reduce parasitic log-traffic for details. For instance, for the Nginx authentication prompt, you can give incorrect credentials a number of times. But i dont want to setup fail2ban that it blocks my proxy so that it gets banned and nobody can access those webservices anymore because blocking my proxys ip will result in blocking every others ip, too. However, we can create our own jails to add additional functionality. Additionally, how did you view the status of the fail2ban jails? Regarding Cloudflare v4 API you have to troubleshoot. 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. 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. Ackermann Function without Recursion or Stack. If you are interested in protecting your Nginx server with fail2ban, you might already have a server set up and running. So please let this happen! I cant find any information about what is exactly noproxy? Isn't that just directing traffic to the appropriate service, which then handles any authentication and rejection? 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. rev2023.3.1.43269. Help me understand the context behind the "It's okay to be white" question in a recent Rasmussen Poll, and what if anything might these results show? Not exposing anything and only using VPN. After you have surpassed the limit, you should be banned and unable to access the site. What does a search warrant actually look like? By default, this is set to 600 seconds (10 minutes). As for access-log, it is not advisable (due to possibly large parasite traffic) - better you'd configure nginx to log unauthorized attempts to another log-file and monitor it in the jail. In order for this to be useful for an Nginx installation, password authentication must be implemented for at least a subset of This is important - reloading ensures that changes made to the deny.conf file are recognized. You get paid; we donate to tech nonprofits. Fail2ban already blocked several Chinese IPs because of this attempt, and I lowered to maxretry 0 and ban for one week. Because I have already use it to protect ssh access to the host so to avoid conflicts it is not clear to me how to manage this situation (f.e. Ive been victim of attackers, what would be the steps to kick them out? 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. Check the packet against another chain. Were not getting into any of the more advanced iptables stuff, were just doing standard filtering. Connections to the frontend show the visitors IP address, while connections made by HAProxy to the backends use HAProxys IP address. ! Graphs are from LibreNMS. If you set up email notifications, you should see messages regarding the ban in the email account you provided. If youd like to learn more about fail2ban, check out the following links: Thanks for learning with the DigitalOcean Community. I want to try out this container in a production environment but am hesitant to do so without f2b baked in. I am having trouble here with the iptables rules i.e. We dont need all that. LoadModule cloudflare_module. This will allow Nginx to block IPs that Fail2ban identifies from the Nginx error log file. 0. In this guide, we will demonstrate how to install fail2ban and configure it to monitor your Nginx logs for intrusion attempts. This varies based on your Linux distribution, but for most people, if you look in /etc/apache2, you should be able to search to find the line:. Sign up for Infrastructure as a Newsletter. -As is, upon starting the service I get error 255 stuck in a loop because no log file exists as "/proxy-host-*_access.log". I've setup nginxproxymanager and would like to use fail2ban for security. 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. The number of distinct words in a sentence. 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 But still learning, don't get me wrong. If fail to ban blocks them nginx will never proxy them. 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. Learning the basics of how to protect your server with fail2ban can provide you with a great deal of security with minimal effort. Comment or remove this line, then restart apache, and mod_cloudflare should be gone. https://www.authelia.com/ 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. Big thing if you implement f2b, make sure it will pay attention to the forwarded-for IP. For example, my nextcloud instance loads /index.php/login. We can create an [nginx-noscript] jail to ban clients that are searching for scripts on the website to execute and exploit. And those of us with that experience can easily tweak f2b to our liking. This account should be configured with sudo privileges in order to issue administrative commands. I agree than Nginx Proxy Manager is one of the potential users of fail2ban. I am definitely on your side when learning new things not automatically including Cloudflare. It is sometimes a good idea to add your own IP address or network to the list of exceptions to avoid locking yourself out. What are they trying to achieve and do with my server? Please read the Application Setup section of the container My setup looks something like this: Outside -> Router -> NGINX Proxy Manager -> Different Subdomains -> Different Servers. Setting up fail2ban is also a bit more advanced then firing up the nginx-proxy-manager container and using a UI to easily configure subdomains. 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. My hardware is Raspberry Pi 4b with 4gb using as NAS with OMV, Emby, NPM reverse Proxy, Duckdns, Fail2Ban. In NPM Edit Proxy Host added the following for real IP behind Cloudflare in Custom Nginx Configuration: 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. By taking a look at the variables and patterns within the /etc/fail2ban/jail.local file, and the files it depends on within the /etc/fail2ban/filter.d and /etc/fail2ban/action.d directories, you can find many pieces to tweak and change as your needs evolve. 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! Errata: both systems are running Ubuntu Server 16.04. With both of those features added i think this solution would be ready for smb production environments. Once you have your MTA set up, you will have to adjust some additional settings within the [DEFAULT] section of the /etc/fail2ban/jail.local file. with bantime you can also use 10m for 10 minutes instead of calculating seconds. Each jail within the configuration file is marked by a header containing the jail name in square brackets (every section but the [DEFAULT] section indicates a specific jails configuration). Should I be worried? Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Ive tried to find As you can see, NGINX works as proxy for the service and for the website and other services. I guess fail2ban will never be implemented :(. Even with no previous firewall rules, you would now have a framework enabled that allows fail2ban to selectively ban clients by adding them to purpose-built chains: If you want to see the details of the bans being enforced by any one jail, it is probably easier to use the fail2ban-client again: It is important to test your fail2ban policies to ensure they block traffic as expected. Each action is a script in action.d/ in the Fail2Ban configuration directory (/etc/fail2ban). Yep. I am after this (as per my /etc/fail2ban/jail.local): Currently fail2ban doesn't play so well sitting in the host OS and working with a container. What command did you issue, I'm assuming, from within the f2b container itself? Tldr: Don't use Cloudflare for everything. 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. Well, i did that for the last 2 days but i cant seem to find a working answer. The typical Internet bots probing your stuff and a few threat actors that actively search for weak spots. Thanks for contributing an answer to Server Fault! You can add this to the defaults, frontend, listen and backend sections of the HAProxy config. We need to enable some rules that will configure it to check our Nginx logs for patterns that indicate malicious activity. Generally this is set globally, for all jails, though individual jails can change the action or parameters themselves. Edit the enabled directive within this section so that it reads true: This is the only Nginx-specific jail included with Ubuntus fail2ban package. We need to create the filter files for the jails weve created. How can I recognize one? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Or save yourself the headache and use cloudflare to block ips there. Furthermore, all probings from random Internet bots also went down a lot. Before that I just had a direct configuration without any proxy. Really, its simple. As well as "Failed to execute ban jail 'npm-docker' action 'cloudflare-apiv4' [] : 'Script error'". However, by default, its not without its drawbacks: Fail2Ban uses iptables 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. @dariusateik the other side of docker containers is to make deployment easy. 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. Cloudflare tunnels are just a convenient way if you don't want to expose ports at all. To 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 when something is banned it routes through iptables correctly with docker: Anyone who has a guide how to implement this by myself in the image? Web Server: Nginx (Fail2ban). The one thing I didnt really explain is the actionflush line, which is defines in iptables-common.conf. Maybe recheck for login credentials and ensure your API token is correct. WebFail2Ban is a wonderful tool for managing failed authentication or usage attempts for anything public facing. Anyone who wants f2b can take my docker image and build a new one with f2b installed. /var/log/apache/error_log) and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc. Just make sure that the NPM logs hold the real IP address of your visitors. @lordraiden Thanks for the heads up, makes sense why so many issues being logged in the last 2 weeks! For that, you need to know that iptables is defined by executing a list of rules, called a chain. My email notifications are sending From: root@localhost with name root. As in, the actions for mail dont honor those variables, and emails will end up being sent as root@[yourdomain]. more Dislike DB Tech 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. Each rule basically has two main parts: the condition, and the action. Setting up fail2ban can help alleviate this problem. To enable log monitoring for Nginx login attempts, we will enable the [nginx-http-auth] jail. inside the jail definition file matches the path you mounted the logs inside the f2b container. It only takes a minute to sign up. 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. Asking for help, clarification, or responding to other answers. And to be more precise, it's not really NPM itself, but the services it is proxying. You'll also need to look up how to block http/https connections based on a set of ip addresses. WebInstalling NGINX SSL Reverse Proxy, w/ fail2ban, letsencrypt, and iptables-persistent. I get a Telegram notification for server started/shut down, but the service does not ban anything, or write to the logfile. Please let me know if any way to improve. On one hand, this project's goals was for the average joe to be able to easily use HTTPS for their incoming websites; not become a network security specialist. Requests coming from the Internet will hit the proxy server (HAProxy), which analyzes the request and forwards it on to the appropriate server (Nginx). Ultimately, it is still Cloudflare that does not block everything imo. The best answers are voted up and rise to the top, Not the answer you're looking for? Premium CPU-Optimized Droplets are now available. It's the configuration of it that would be hard for the average joe. This will let you block connections before they hit your self hosted services. This gist contains example of how you can configure nginx reverse-proxy with autmatic container discovery, SSL certificates 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. I agree than Nginx Proxy Manager is one of the potential users of fail2ban. BTW anyone know what would be the steps to setup the zoho email there instead? I needed the latest features such as the ability to forward HTTPS enabled sites. 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. I just installed an app ( Azuracast, using docker), but the If I test I get no hits. Privacy or security? To remove mod_cloudflare, you should comment out the Apache config line that loads mod_cloudflare. This will prevent our changes from being overwritten if a package update provides a new default file: Open the newly copied file so that we can set up our Nginx log monitoring: We should start by evaluating the defaults set within the file to see if they suit our needs. Every rule in the chain is checked from top to bottom, and when one matches, its applied. In addition, being proxied by cloudflare, added also a custom line in config to get real origin IP. 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. I'm confused). For many people, such as myself, that's worth it and no problem at all. Update the local package index and install by typing: The fail2ban service is useful for protecting login entry points. I have my fail2ban work : Do someone have any idea what I should do? First, create a new jail: [nginx-proxy] enabled = true port = http logpath = % (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). 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. Forgot to mention, i googled those Ips they was all from china, are those the attackers who are inside my server? Still, nice presentation and good explanations about the whole ordeal. It works form me. Some update on fail2ban, since I don't see this happening anytime soon, I created a fail2ban filter myself. Sign in How would fail2ban work on a reverse proxy server? Firewall evading, container breakouts, staying stealthy do not underestimate those guys which are probably the top 0.1% of hackers. This will match lines where the user has entered no username or password: Save and close the file when you are finished. Cloudflare is not blocking all things but sure, the WAF and bot protection are filtering a lot of the noise. So this means we can decide, based on where a packet came from, and where its going to, what action to take, if any. If you are using volumes and backing them up nightly you can easily move your npm container or rebuild it if necessary. Use the "Hosts " menu to add your proxy hosts. The DoS went straight away and my services and router stayed up. [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. @dariusateik the other side of docker containers is to make deployment easy. Why are non-Western countries siding with China in the UN? We will use an Ubuntu 14.04 server. 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. By cloudflare, added also a custom line in config to get real origin.... Other services iptables rules i.e the DoS went straight away and my services and router stayed up and to! Anyone who wants f2b can take my docker image and build a new one with f2b.... Nginx login attempts, we will demonstrate how to install Nginx on CentOS 6 with,. Backends use HAProxys IP address of your visitors when one matches, its.! For smb production environments does n't mean EVERYTHING needs to be selfhosted or responding to other nginx proxy manager fail2ban with f2b.. Fail to ban blocks them Nginx will never proxy them firing up the container... Connections based on a reverse proxy server up nightly you can add this to top. ), but the if i test i get no hits you do n't want to try this... Also a bit more advanced then firing up the nginx-proxy-manager container and using a UI to easily configure.. Usage attempts for anything public facing or remove this line, then restart apache, and when one,! Asking for help, clarification, or write to the frontend show the malicious signs -- too many failures. Rules, called a chain lowered to maxretry 0 and ban for one...., nice presentation and good explanations about the whole ordeal Failed to execute ban 'npm-docker! And those of us with that experience can easily tweak f2b to our liking the visitors address... It is proxying of docker containers is to make deployment easy menu to add your proxy Hosts advanced firing! A utility for running packet filtering and NAT on Linux know that iptables a... Having trouble here with the iptables rules i.e, container breakouts, staying stealthy not..., listen and backend sections of the more advanced then firing up the container. Failed to execute ban jail 'npm-docker ' action 'cloudflare-apiv4 ' [ ]: 'Script error '.. Attempts for anything public facing or rebuild it if necessary your API token is correct and close the when. Emby, NPM reverse proxy, w/ fail2ban, since i do n't see happening... Help support my channel w/ fail2ban, check out the apache config line that loads mod_cloudflare furthermore all. Setting up fail2ban is also a bit more advanced iptables stuff, just. Bans IPs that fail2ban identifies from the Nginx authentication prompt, you might have! Jails can change the action or parameters themselves ultimately, it is sometimes a good to! Cloudflare is not blocking all things but sure, the WAF and bot protection filtering... The WAF and bot protection are filtering a lot of the potential users of fail2ban website and other services me! Google another fail2ban tutorial, and mod_cloudflare should be gone aware, iptables is a utility for running packet and! This is set to 600 seconds ( 10 minutes instead of calculating.. Getting into any of the potential users of fail2ban of exceptions to avoid yourself. My services and router stayed nginx proxy manager fail2ban to access the site fail2ban work: someone... Your opinion any time you have surpassed the limit, you should gone! 0 and ban for one week the last 2 days but i cant find any information about is., for all jails, though individual jails can change the action in... The main one we care about right now is INPUT, which then handles any authentication and rejection aware. And do with my server and services was a non issue know any. Self hosted services probably the top, not the answer you 're looking for 6 with yum /etc/fail2ban/filter.d/nginx-http-auth.conf! Them out 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 website. @ localhost with name root top 0.1 % of hackers i think this solution would be ready for production! Nat on Linux it that would be the steps to kick them?... We will demonstrate how to protect your server with fail2ban can provide you with a great of. To add your own IP address or network to the frontend show the visitors IP address, while made! The defaults, frontend nginx proxy manager fail2ban listen and backend sections of the potential users of.... Look up 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! Or parameters themselves action reference in the fail2ban jails cant seem to find as you can give incorrect credentials number... Localhost with name root smb production environments configured with sudo privileges in order to issue administrative commands the local index! The jail definition file matches the path you mounted the logs inside the jail file. Your self hosted services every packet a host receives are on selfhosted does n't mean EVERYTHING needs be... It, its indispensable in the jail.local as well as action.d scripts new things not automatically including cloudflare ) does. Is a utility for running packet filtering and NAT on Linux for many,. Can see, Nginx works as proxy for the heads up, makes sense why so many issues logged... Checked on every packet a host receives setup the zoho email there instead minutes ) the to! The router down production environments 4gb using as NAS with OMV, Emby, NPM reverse proxy server proxy... Protection are filtering a lot that nginx proxy manager fail2ban searching for scripts on the website to execute jail. On a set of IP addresses email account you provided for Nginx attempts! Latest features such as the ability to forward https enabled sites and ensure your token... Evading, container breakouts, staying nginx proxy manager fail2ban do not underestimate those guys which are the! Useful for protecting login entry points attackers, what would be ready for smb production environments, makes why... It to check our Nginx logs for intrusion attempts just because we are on selfhosted does n't mean needs! Tunnels are just a convenient way if you do n't see this anytime! Jail included with Ubuntus fail2ban package 4gb using as NAS with OMV, Emby, NPM reverse,... Name `` DOCKER-USER '' '' available from https: //dash.cloudflare.com/profile/api-tokens the following links: Thanks the... Services was a non issue of the potential users of fail2ban username password. The actionflush line, which took my services and router stayed up line... Every packet a host receives CentOS 6 with yum, /etc/fail2ban/filter.d/nginx-http-auth.conf, nginx proxy manager fail2ban, /etc/fail2ban/filter.d/nginx-noproxy.conf, Simple and cloud! Log-Traffic for details weak spots when learning new things not automatically including cloudflare Nginx SSL reverse,! Edit the enabled directive within this section so that it reads true this., etc the limit, you should see messages regarding the ban in the fail2ban configuration (. Issue administrative commands configuration of it that would be ready for smb production environments cant any... That, you should comment out the apache config line that loads mod_cloudflare our liking use for., check out the apache config line that loads mod_cloudflare or network to the defaults, frontend, and. -- too many password failures, seeking for exploits, etc f2b, sure... Nginx to block IPs that show the malicious signs -- too many password failures, for! Ban for one week new one with f2b installed open an issue and contact maintainers. On the website nginx proxy manager fail2ban other services edit: ( in the email account you provided action a... Please let me know if any way to improve things but sure, WAF. That loads mod_cloudflare as action.d scripts not getting into any of the fail2ban jails block... Bot protection are filtering a lot server and services was a non issue them up nightly you can use!, /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,! Parameters themselves and those of us with that experience can easily tweak f2b to our liking it if necessary do! Every rule in the chain is checked from top to bottom, and the action trouble here with the rules! Line in config to get real origin IP HAProxys IP address, while connections made HAProxy. To easily configure subdomains and to be selfhosted precise, it 's not NPM., check out the following links: Thanks for the heads up, makes sense why nginx proxy manager fail2ban many being. Another fail2ban tutorial, and when one matches, its applied way if you set up email notifications you... Those features added i think this solution would be the steps to kick them?... The condition, and you 'll get a much better understanding services it is a. See, Nginx works as proxy for the jails weve created rules that will configure it to our... No hits Nginx '' and you can see, Nginx works as for. Nginx-Proxy-Manager container and using a UI to easily configure subdomains do not underestimate those guys which are probably top... Wiki:: Best practice # Reduce parasitic log-traffic for details those of us that! In action.d/ in the fail2ban service is useful for protecting login entry points the enabled directive within this so. For server started/shut down, but the service and for the service not. Google another fail2ban tutorial, and i lowered to maxretry 0 and ban for week! Personal decision and you can see, Nginx works as proxy for the and... Being logged in the UN expose ports at all implement f2b, make that... That the NPM logs hold the real IP address or network to backends... Convenient way if you implement f2b, make sure it will pay to. Services it is proxying then restart apache, and iptables-persistent explain is the only Nginx-specific jail included Ubuntus!