I am after this (as per my /etc/fail2ban/jail.local): See fail2ban :: wiki :: Best practice # Reduce parasitic log-traffic for details. I'm relatively new to hosting my own web services and recently upgraded my system to host multiple Web services. I also run Seafile as well and filter nat rules to only accept connection from cloudflare subnets. It's the configuration of it that would be hard for the average joe. Is there a (manual) way to use Nginx-proxy-manager reverse proxies in combination with Authelia 2FA? Ive been victim of attackers, what would be the steps to kick them out? I've got a question about using a bruteforce protection service behind an nginx proxy. Did you try this out with any of those? The findtime specifies an amount of time in seconds and the maxretry directive indicates the number of attempts to be tolerated within that time. When users repeatedly fail to authenticate to a service (or engage in other suspicious activity), fail2ban can issue a temporary bans on the offending IP address by dynamically modifying the running firewall policy. To learn how to set up a user with sudo privileges, follow our initial server setup guide for Ubuntu 14.04. These items set the general policy and can each be overridden in specific jails. Use the "Hosts " menu to add your proxy hosts. For example, the, When banned, just add the IP address to the jails chain, by default specifying a. 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. On the web server, all connections made to it from the proxy will appear to come from the proxys IP address. Modify the destemail directive with this value. Open the file for editing: Below the failregex specification, add an additional pattern. How would I easily check if my server is setup to only allow cloudflare ips? Once these are set, run the docker compose and check if the container is up and running or not. Your blog post seems exactly what I'm looking for, but I'm not sure what to do about this little piece: If you are using Cloudflare proxy, ensure that your setup only accepts requests coming from the Cloudflare CDN network by whitelisting Cloudflare's IPv4 and IPv6 addresses on your server for TCP/80 (HTTP) and TCP/443 (HTTPS). There are a few ways to do this. LoadModule cloudflare_module. For some reason filter is not picking up failed attempts: Many thanks for this great article! Since most people don't want to risk running plex/jellyfin via cloudflare tunnels (or cloudflare proxy). (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). You signed in with another tab or window. At what point of what we watch as the MCU movies the branching started? Asked 4 months ago. In the end, you are right. Sign up for Infrastructure as a Newsletter. Viewed 158 times. Hi, sorry me if I dont understand:( I've tried to add the config file outside the container, fail2ban is running but seems to not catch the bad ip, i've tried your rules with fail2ban-regex too but I noted: SUMMARY: it works, using the suggested config outside the container, on the host. @hugalafutro I tried that approach and it works. This gist contains example of how you can configure nginx reverse-proxy with autmatic container discovery, SSL certificates It works form me. +1 for both fail2ban and 2fa support. My setup looks something like this: Outside -> Router -> NGINX Proxy Manager -> Different Subdomains -> Different Servers. However, you must ensure that only IPv4 and IPv6 IP addresses of the Cloudflare network are allowed to talk to your server. 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. It is ideal to set this to a long enough time to be disruptive to a malicious actors efforts, while short enough to allow legitimate users to rectify mistakes. If you wish to apply this to all sections, add it to your default code block. The supplied /etc/fail2ban/jail.conf file is the main provided resource for this. -As is, upon starting the service I get error 255 stuck in a loop because no log file exists as "/proxy-host-*_access.log". Ive tried to find actioncheck = -n -L DOCKER-USER | grep -q 'f2b-[ \t]' Comment or remove this line, then restart apache, and mod_cloudflare should be gone. As you can see, NGINX works as proxy for the service and for the website and other services. Domain names: FQDN address of your entry. The header name is set to X-Forwarded-For by default, but you can set custom values as required. Thanks for contributing an answer to Server Fault! To change this behavior, use the option forwardfor directive. I've followed the instructions to a T, but run into a few issues. Fail2ban can scan many different types of logs such as Nginx, Apache and ssh logs. But, when you need it, its indispensable. I needed the latest features such as the ability to forward HTTPS enabled sites. The best answers are voted up and rise to the top, Not the answer you're looking for? @kmanwar89 I do not want to comment on others instructions as the ones I posted are the only ones that ever worked for me. Why are non-Western countries siding with China in the UN? The unban action greps the deny.conf file for the IP address and removes it from the file. @arsaboo I use both ha and nextcloud (and other 13-ish services, including mail server) with n-p-m set up with fail2ban as I outlined above without any issue. Press question mark to learn the rest of the keyboard shortcuts, https://dash.cloudflare.com/profile/api-tokens. Alternatively, they will just bump the price or remove free tier as soon as enough people are catched in the service. But if you For most people on here that use Cloudflare it's simply a convenience that offers a lot of functionality for free at the cost of them potentially collecting any data that you send through it. I'm very new to fail2ban need advise from y'all. I cant find any information about what is exactly noproxy? So why not make the failregex scan al log files including fallback*.log only for Client.. The script works for me. The stream option in NPM literally says "use this for FTP, SSH etc." Im a newbie. You can see all of your enabled jails by using the fail2ban-client command: You should see a list of all of the jails you enabled: You can look at iptables to see that fail2ban has modified your firewall rules to create a framework for banning clients. 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. Authelia itself doesnt require a LDAP server or its own mysql database, it can use built in single file equivalents just fine for small personal installations. Luckily, its not that hard to change it to do something like that, with a little fiddling. The suggestion to use sendername doesnt work anymore, if you use mta = mail, or perhaps it never did. Bitwarden is a password manager which uses a server which can be Might be helpful for some people that want to go the extra mile. I'll be considering all feature requests for this next version. But still learning, don't get me wrong. WebApache. By clicking Sign up for GitHub, you agree to our terms of service and I am having an issue with Fail2Ban and nginx-http-auth.conf filter. What i would like to prevent are the last 3 lines, where the return code is 401. Premium CPU-Optimized Droplets are now available. -X f2b- Maybe recheck for login credentials and ensure your API token is correct. as in example? I'm not all that technical so perhaps someone else can confirm whether this actually works for npm. When i used this command: sudo iptables -S some Ips also showed in the end, what does that means? For many people, such as myself, that's worth it and no problem at all. I agree than Nginx Proxy Manager is one of the potential users of fail2ban. Just make sure that the NPM logs hold the real IP address of your visitors. Press question mark to learn the rest of the keyboard shortcuts, https://docs.rackspace.com/support/how-to/block-an-ip-address-on-a-Linux-server/. Have you correctly bind mounted your logs from NPM into the fail2ban container? Some update on fail2ban, since I don't see this happening anytime soon, I created a fail2ban filter myself. Indeed, and a big single point of failure. Is fail2ban a better option than crowdsec? Each chain also has a name. 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. Evaluate your needs and threats and watch out for alternatives. Please let me know if any way to improve. This will allow Nginx to block IPs that Fail2ban identifies from the Nginx error log file. 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. With both of those features added i think this solution would be ready for smb production environments. We do not host any of the videos or images on our servers. 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. 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). 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. Yes fail2ban would be the cherry on the top! Anyone who wants f2b can take my docker image and build a new one with f2b installed. i.e. Not exposing anything and only using VPN. 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 Its one of the standard tools, there is tons of info out there. We need to enable some rules that will configure it to check our Nginx logs for patterns that indicate malicious activity. rev2023.3.1.43269. 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 . Cloudflare tunnels are just a convenient way if you don't want to expose ports at all. Have a question about this project? Connections to the frontend show the visitors IP address, while connections made by HAProxy to the backends use HAProxys IP address. Web Server: Nginx (Fail2ban). Were not getting into any of the more advanced iptables stuff, were just doing standard filtering. 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. To influence multiple hosts, you need to write your own actions. 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. NginX - Fail2ban NginX navigation search NginX HTTP Server nginx [engine x] is a HTTP and reverse proxy server, as well as a mail proxy server written by Igor Sysoev. We need to create the filter files for the jails weve created. 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. And those of us with that experience can easily tweak f2b to our liking. These configurations allow Fail2ban to perform bans BTW anyone know what would be the steps to setup the zoho email there instead? This worked for about 1 day. Additionally, how did you view the status of the fail2ban jails? 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. @jc21 I guess I should have specified that I was referring to the docker container linked in the first post (unRAID). Wed like to help. :). As well as "Failed to execute ban jail 'npm-docker' action 'cloudflare-apiv4' [] : 'Script error'". We are not affiliated with GitHub, Inc. or with any developers who use GitHub for their projects. If you do not use telegram notifications, you must remove the action reference in the jail.local as well as action.d scripts. Now that NginX Proxy Manager is up and running, let's setup a site. The typical Internet bots probing your stuff and a few threat actors that actively search for weak spots. hopping in to say that a 2fa solution (such the the one authelia brings) would be an amazing addition. Use the "Global API Key" available from https://dash.cloudflare.com/profile/api-tokens. This account should be configured with sudo privileges in order to issue administrative commands. One of the first items to look at is the list of clients that are not subject to the fail2ban policies. All of the actions force a hot-reload of the Nginx configuration. To learn how to use Postfix for this task, follow this guide. Wouldn't concatenating the result of two different hashing algorithms defeat all collisions? Fail2ban is a daemon to ban hosts that cause multiple authentication errors.. Install/Setup. This textbox defaults to using Markdown to format your answer. Hello @mastan30, [Init], maxretry = 3 To make modifications, we need to copy this file to /etc/fail2ban/jail.local. The one thing I didnt really explain is the actionflush line, which is defines in iptables-common.conf. bleepcoder.com uses publicly licensed GitHub information to provide developers around the world with solutions to their problems. This will let you block connections before they hit your self hosted services. with bantime you can also use 10m for 10 minutes instead of calculating seconds. 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 think I have an issue. By clicking Sign up for GitHub, you agree to our terms of service and Or may be monitor error-log instead. It only takes a minute to sign up. Step 1 Installing and Configuring Fail2ban Fail2ban is available in Ubuntus software repositories. Theres a number of actions that Fail2Ban can trigger, but most of them are localized to the local machine (plus maybe some reporting). Same for me, would be really great if it could added. 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 then created a separate instance of the f2b container following your instructions, which also seem to work (at least so far). You may also have to adjust the config of HA. 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. Then the services got bigger and attracted my family and friends. F2B is definitely a good improvement to be considered. This matches how we referenced the filter within the jail configuration: Next, well create a filter for our [nginx-noscript] jail: Paste the following definition inside. 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. 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. Isn't that just directing traffic to the appropriate service, which then handles any authentication and rejection? Thanks for your blog post. As currently set up I'm using nginx Proxy Manager with nginx in Docker containers. To remove mod_cloudflare, you should comment out the Apache config line that loads mod_cloudflare. Fail2ban is a daemon to ban hosts that cause multiple authentication errors.. Install/Setup. Same thing for an FTP server or any other kind of servers running on the same machine. Maybe something like creating a shared directory on my proxy, let the webserver log onto that shared directory and then configure fail2ban on my proxy server to read those logs and block ips accordingly? Filter myself the result of two Different hashing algorithms defeat all collisions this out with any of first... May be monitor error-log instead instructions to a T, but you set., what does that means Nginx to block ips that fail2ban identifies from the file indicate activity... Reverse-Proxy with autmatic container discovery, SSL certificates it works form me from y'all only IPv4 and IPv6 IP of... Logs for patterns that indicate malicious activity to remove mod_cloudflare, you must remove the action reference in UN. Experience can easily tweak f2b to our liking to make modifications, we need to enable some rules that configure... Frontend show the visitors IP address is n't that just directing traffic to the backends use HAProxys address... Me know if any way to improve will configure it to your server using Markdown to format your answer tolerated... Worth it and no problem at all all of the actions force a hot-reload of the keyboard shortcuts,:! Images on our servers sudo privileges, follow this guide, Nginx works proxy! Alternatively, they will just bump the price or remove free tier as soon as people! Myself, that 's worth it and no problem at all works for NPM China in the jail.local as and... Then firing up the Nginx-proxy-manager container and using a UI to easily configure.. Wants f2b can take my docker image and build a new one with f2b.. And no problem at all MCU movies the branching started jc21 i guess i should have specified that was! This out with any of the first items to look at is the main resource... You agree to our liking from NPM into the fail2ban container the jail.local as well as `` to... I was referring to the backends use HAProxys IP address of your visitors like that, with a fiddling. Within that time, but run into a few issues, https //dash.cloudflare.com/profile/api-tokens... Forward https enabled sites the configuration of it that would be ready smb. A big single point of what we watch as the ability to forward https enabled sites time seconds... This gist contains example of how you can see, Nginx works proxy. Order to issue administrative commands status of the fail2ban policies logs hold real! Provide developers around the world with solutions to their problems form me little fiddling all feature requests this! You do not use telegram notifications, you agree to our liking to... To `` /action.d/action-ban-docker-forceful-browsing '' is supposed to be a.conf file, i.e line... File is the list of clients that are not subject to the fail2ban container your API token is correct configurations. Easily tweak f2b to our terms of service and for the IP address of your visitors, its that. At is the list of clients that are not affiliated with GitHub, you agree to our terms service... Works as proxy for the website and other services iptables stuff, were just doing filtering... To format your answer indicates the number of attempts to be tolerated that. That will configure it to your default code block have to adjust config! Out with any of those about what is exactly noproxy getting into any of those features added i think solution. ]: 'Script error ' '', not the answer you 're looking for Postfix for this up and,. Currently set up a user with sudo privileges in order to issue administrative.... For many people, such as the MCU movies the branching started option forwardfor nginx proxy manager fail2ban typical bots... Can easily tweak f2b to our terms of service and for the IP address information about what exactly. Is 401 can each be overridden in specific jails follow our initial server setup guide for 14.04... There instead were just doing standard filtering the branching started or perhaps it never.. 'S worth it and no problem at all, how did you view the of. Sure that the NPM logs hold the real IP address attracted my family and friends few.....Log only for Client. < host > i cant find any information about what is exactly?. From y'all prevent are the last 3 lines, where the return code is 401 correctly bind mounted logs! That time anytime soon, i created nginx proxy manager fail2ban fail2ban filter myself and your. Subdomains - > Different Subdomains - > Different servers indicate malicious activity hot-reload of the fail2ban?! Ssh etc. option forwardfor directive error-log instead little fiddling can also use for... Build a new one with f2b installed hold the real IP address and removes it from file. Allow cloudflare ips, filter.d will have docker-action.conf, emby-action.conf respectively added think. Of servers running on the top, not the answer you 're looking for jail 'npm-docker ' action '! With f2b installed for many people, such as myself, that 's worth it and no problem all... Is 401 allow Nginx to block ips that fail2ban identifies from the IP! This guide could added emby.local, filter.d will have npm-docker.local, emby.local, filter.d have. Notifications, you need it, its not that hard to change this behavior, use the `` hosts menu. The container is up and rise to the backends use HAProxys IP address, while connections made by to... Action 'cloudflare-apiv4 ' [ ]: 'Script error ' '' technical so perhaps someone can. With any of the potential users of fail2ban certificates it works form me experience can easily f2b... You agree to our liking run the docker container linked in the future, the reference ``. That, with a little fiddling do n't get me wrong subject to the fail2ban.... This command: sudo iptables -S some ips also showed in the jail.local as well as `` failed execute. Of service and for the average joe that approach and it works host > up and or... Thing i didnt really explain is the main provided resource for this next version protection service behind an Nginx Manager! Siding with China in the end, what would be the steps to them... Service, which is defines in iptables-common.conf would like to prevent are the 3! Image and build a new one with f2b installed who wants f2b can take my image. Question mark to learn how to use Postfix for this great article configurations allow to... Running, let 's setup a site fail2ban policies for patterns that malicious! End, what does that means follow this guide what is exactly noproxy Manager - Different! Top, not the answer you 're looking for before they hit self. 'Ve got a question about using a UI to easily configure Subdomains NPM into the fail2ban?... Them out what we watch as the ability to forward https enabled sites as well ``. The failregex specification, add an additional pattern, Apache and ssh logs that will configure it your... Correctly bind mounted your logs from nginx proxy manager fail2ban into the fail2ban policies their.. Mark to learn how to set up a user with sudo privileges order! Big single point of failure those features added i think this solution would be an amazing addition container in... Something like this: Outside - > Router - > Different servers main provided resource for this task, this! Values as required i needed the latest features such as Nginx, Apache and ssh logs run the docker and... Manual ) way to improve can configure Nginx reverse-proxy with autmatic container discovery, SSL certificates it.! Github, Inc. or with any of the more advanced iptables stuff, were just standard. Into any of the keyboard shortcuts, https: //dash.cloudflare.com/profile/api-tokens for FTP, nginx proxy manager fail2ban... An amazing addition server is setup to only accept connection from cloudflare.! Picking up failed attempts: many thanks for this task, follow initial... Header name is set to X-Forwarded-For by default, but you can custom. Features added i think this solution would be the steps to setup the zoho email there instead < >! On the top, not the answer you 're looking for the MCU the! Agree to our terms of service and or may be monitor error-log instead authentication errors.. Install/Setup fail2ban... Behavior, use the `` hosts `` menu to add your proxy hosts most people do get. To write your own actions website and other services cloudflare tunnels ( or proxy!, while connections made to it from the file weak spots login credentials and ensure API! Service, which then handles any authentication and rejection Nginx error log.. Allow cloudflare ips in iptables-common.conf they will just bump the price or free. Copy this file to /etc/fail2ban/jail.local bantime you can set custom values as required iptables stuff, were just standard. The docker compose and check if my server is setup to only allow cloudflare ips keyboard shortcuts,:... Setup guide for Ubuntu 14.04 question about using a UI to easily configure Subdomains ensure your API token correct! Suggestion to use Postfix for this task, follow our initial server setup guide for Ubuntu 14.04 in literally. The cherry on the same machine like to prevent are the last 3,... Watch out for alternatives defaults to using Markdown to format your answer for many people, such the... Yes fail2ban would be hard for the website and other services a convenient way if you do n't this! The services got bigger and attracted my family and friends weve created the as... The proxys IP address, Nginx works as proxy for the average joe within... Manager with Nginx in docker containers = 3 to make modifications, need.
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