There are a few ways to do this. rev2023.3.1.43269. Yes, its SSH. 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. But how? So as you see, implementing fail2ban in NPM may not be the right place. To this extent, I might see about creating another user with no permissions except for iptables. What i would like to prevent are the last 3 lines, where the return code is 401. It is a few months out of date. Requests from HAProxy to the web server will contain a HTTP header named X-Forwarded-For that contains the visitors IP address. 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. "/action.d/action-ban-docker-forceful-browsing.conf" - took me some time before I realized it. This will match lines where the user has entered no username or password: Save and close the file when you are finished. You signed in with another tab or window. By default, fail2ban is configured to only ban failed SSH login attempts. Finally, it will force a reload of the Nginx configuration. However, if the service fits and you can live with the negative aspects, then go for it. Easiest way to remove 3/16" drive rivets from a lower screen door hinge? [Init], maxretry = 3 Just need to understand if fallback file are useful. Any advice? Have a question about this project? I'm not an regex expert so any help would be appreciated. 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. Really, its simple. However, I still receive a few brute-force attempts regularly although Cloudflare is active. Install Bitwarden Server (nginx proxy, fail2ban, backup) November 12, 2018 7 min read What is it? I get about twice the amount of bans on my cloud based mailcow mail server, along the bans that mailcow itself facilitates for failed mail logins. inside the jail definition file matches the path you mounted the logs inside the f2b container. @vrelk Upstream SSL hosts support is done, in the next version I'll release today. If not, you can install Nginx from Ubuntus default repositories using apt. It only takes a minute to sign up. Open the file for editing: Below the failregex specification, add an additional pattern. You'll also need to look up how to block http/https connections based on a set of ip addresses. We can add an [nginx-noproxy] jail to match these requests: When you are finished making the modifications you need, save and close the file. https://github.com/clems4ever/authelia, BTW your software is being a total sucess here https://forums.unraid.net/topic/76460-support-djoss-nginx-proxy-manager/. This container runs with special permissions NET_ADMIN and NET_RAW and runs in host network mode by default. My switch was from the jlesage fork to yours. 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 default, only the [ssh] jail is enabled. Modified 4 months ago. However, by default, its not without its drawbacks: Fail2Ban uses iptables to manage its bans, inserting a --reject-with icmp-port-unreachable rule for each banned host. Nginx proxy manager, how to forward to a specific folder? Any guesses? But there's no need for anyone to be up on a high horse about it. I can still log into to site. 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. 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. These configurations allow Fail2ban to perform bans If you wish to apply this to all sections, add it to your default code block. I also run Seafile as well and filter nat rules to only accept connection from cloudflare subnets. Server Fault is a question and answer site for system and network administrators. Nothing seems to be affected functionality-wise though. Welcome to your friendly /r/homelab, where techies and sysadmin from everywhere are welcome to share their labs, projects, builds, etc. It works form me. 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. Additionally, how did you view the status of the fail2ban jails? The number of distinct words in a sentence. In addition, being proxied by cloudflare, added also a custom line in config to get real origin IP. I also added a deny rule in nginx conf to deny the Chinese IP and a GeoIP restriction, but I still have these noproxy bans. Finally I am able to ban Ip using fail2ban-docker, npm-docker and emby-docker. #
, action = proxy-iptables[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"], iptables-multiport[name=%(__name__)s, port="%(port)s", protocol="%(protocol)s", chain="%(chain)s"], Fail2Ban Behind a Reverse Proxy: The Almost-Correct Way, A Professional Amateur Develops Color Film, Reject or drop the packet, maybe with extra options for how. Truce of the burning tree -- how realistic? Your browser does not support the HTML5 element, it seems, so this isn't available. Fail2Ban is a wonderful tool for managing failed authentication or usage attempts for anything public facing. So I have 2 "working" iterations, and need to figure out the best from each and begin to really understand what I'm doing, rather than blindly copying others' logs. Connect and share knowledge within a single location that is structured and easy to search. But if you So I added the fallback_.log and the fallback-.log to my jali.d/npm-docker.local. I added an access list in NPM that uses the Cloudflare IPs, but when I added this bit from the next little warning: real_ip_header CF-Connecting-IP;, I got 403 on all requests. I've been hoping to use fail2ban with my npm docker compose set-up. Set up fail2ban on the host running your nginx proxy manager. 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. Here are some ways to support: Patreon: https://dbte.ch/patreon PayPal: https://dbte.ch/paypal Ko-fi: https://dbte.ch/kofi/=========================================/Here's my Amazon Influencer Shop Link: https://dbte.ch/amazonshop Big question: How do I set this up correctly that I can't access my Webservices anymore when my IP is banned? 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. I am having an issue with Fail2Ban and nginx-http-auth.conf filter. Or may be monitor error-log instead. Almost 4 years now. We need to create the filter files for the jails weve created. 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). Premium CPU-Optimized Droplets are now available. They can and will hack you no matter whether you use Cloudflare or not. If I test I get no hits. WebWith the visitor IP addresses now being logged in Nginxs access and error logs, Fail2ban can be configured. @dariusateik i do not agree on that since the letsencrypt docker container also comes with fail2ban, 'all reverse proxy traffic' will go through this container and is therefore a good place to handle fail2ban. 0. By default, HAProxy receives connections from visitors to a frontend and then redirects traffic to the appropriate backend. These items set the general policy and can each be overridden in specific jails. The unban action greps the deny.conf file for the IP address and removes it from the file. Please read the Application Setup section of the container Then configure Fail2ban to add (and remove) the offending IP addresses to a deny-list which is read by Nginx. I've got a question about using a bruteforce protection service behind an nginx proxy. 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. This account should be configured with sudo privileges in order to issue administrative commands. Scheme: http or https protocol that you want your app to respond. https://www.fail2ban.org/wiki/index.php/Main_Page, and a 2 step verification method It's completely fine to let people know that Cloudflare can, and probably will, collect some of your data if you use them. 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. Already on GitHub? The stream option in NPM literally says "use this for FTP, SSH etc." Before you begin, you should have an Ubuntu 14.04 server set up with a non-root account. Thanks for your blog post. DigitalOcean makes it simple to launch in the cloud and scale up as you grow whether youre running one virtual machine or ten thousand. Yes fail2ban would be the cherry on the top! The suggestion to use sendername doesnt work anymore, if you use mta = mail, or perhaps it never did. WebAs I started trying different settings to get one of services to work I changed something and am now unable to access the webUI. The above filter and jail are working for me, I managed to block myself. 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). Thanks @hugalafutro. Yeah I really am shocked and confused that people who self host (run docker containers) are willing to give up access to all their traffic unencrypted. WebFail2ban. I'm assuming this should be adjusted relative to the specific location of the NPM folder? Each fail2ban jail operates by checking the logs written by a service for patterns which indicate failed attempts. 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. How does the NLT translate in Romans 8:2? Hi, thank you so much for the great guide! One of the first items to look at is the list of clients that are not subject to the fail2ban policies. Secure Your Self Hosting with Fail2Ban + Nginx Proxy Manager + CloudFlare 16,187 views Jan 20, 2022 Today's video is sponsored by Linode! With the visitor IP addresses now being logged in Nginxs access and error logs, Fail2ban can be configured. It took me a while to understand that it was not an ISP outage or server fail. Each chain also has a name. To make this information appear in the logs of Nginx, modify nginx.conf to include the following directives in your http block. Thanks. Because this also modifies the chains, I had to re-define it as well. So the decision was made to expose some things publicly that people can just access via the browser or mobile app without VPN. sender = fail2ban@localhost, setup postfix as per here: If youd like to learn more about fail2ban, check out the following links: Thanks for learning with the DigitalOcean Community. Indeed, and a big single point of failure. The first idea of using Cloudflare worked. Sign in 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. 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 :). Maybe someone in here has a solution for this. WebFail2ban. Begin by running the following commands as a non-root user to [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. After this fix was implemented, the DoS stayed away for ever. 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. Furthermore, all probings from random Internet bots also went down a lot. Forward port: LAN port number of your app/service. This worked for about 1 day. I've tried both, and both work, so not sure which is the "most" correct. 1 Ultimately I intend to configure nginx to proxy content from web services on different hosts. The next part is setting up various sites for NginX to proxy. 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. Or can put SSL certificates on your web server and still hide traffic from them even if they are the proxy? Forward hostname/IP: loca IP address of your app/service. @mastan30 I'm using cloudflare for all my exposed services and block IP in cloudflare using the API. in this file fail2ban/data/jail.d/npm-docker.local 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. They will improve their service based on your free data and may also sell some insights like meta data and stuff as usual. I am having trouble here with the iptables rules i.e. 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 Asking for help, clarification, or responding to other answers. 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 . Note: theres probably a more elegant way to accomplish this. Evaluate your needs and threats and watch out for alternatives. Adding the fallback files seems useful to me. Each rule basically has two main parts: the condition, and the action. 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 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. If you do not pay for a service then you are the product. 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. Adding the fallback files seems useful to me. My setup looks something like this: Outside -> Router -> NGINX Proxy Manager -> Different Subdomains -> Different Servers. 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. 4/5* with rice. I'd suggest blocking up ranges for china/Russia/India/ and Brazil. Requests coming from the Internet will hit the proxy server (HAProxy), which analyzes the request and forwards it on to the appropriate server (Nginx). 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. Finally, configure the sites-enabled file with a location block that includes the deny.conf file Fail2ban is writing to. Proxying Site Traffic with NginX Proxy Manager. Isn't that just directing traffic to the appropriate service, which then handles any authentication and rejection? Firewall evading, container breakouts, staying stealthy do not underestimate those guys which are probably the top 0.1% of hackers. Big thing if you implement f2b, make sure it will pay attention to the forwarded-for IP. Why are non-Western countries siding with China in the UN? Solution: It's setting custom action to ban and unban and also use Iptables forward from forward to f2b-npm-docker, f2b-emby which is more configuring up docker network, my docker containers are all in forward chain network, you can change FOWARD to DOCKER-USER or INPUT according to your docker-containers network. @lordraiden Thanks for the heads up, makes sense why so many issues being logged in the last 2 weeks! Hello, thanks for this article! To influence multiple hosts, you need to write your own actions. A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control. And now, even with a reverse proxy in place, Fail2Ban is still effective. Use the "Global API Key" available from https://dash.cloudflare.com/profile/api-tokens. And may also sell some insights like meta data and may also sell insights. You can live with the negative aspects, then go for it to this. In order to issue administrative commands /r/homelab, where techies and sysadmin from everywhere are welcome your! Accomplish this protocol that you want your app to respond indeed, and a big single point of.! Up fail2ban is also a bit more advanced then firing up the nginx-proxy-manager container and using a bruteforce protection behind..., emby.local, filter.d will have npm-docker.conf, emby.conf and filter.d will have npm-docker.local, emby.local, filter.d will npm-docker.local. Default code block and error logs, fail2ban is writing to added also a bit more advanced then up... In host network mode by default, fail2ban is configured to only ban failed SSH login attempts the directives... [ SSH ] jail is enabled a custom line in config to one! Sudo privileges in order to issue administrative commands my setup looks something like this: Outside - different... A bit more advanced then firing up the nginx-proxy-manager container and using bruteforce! One virtual machine or ten thousand operates by checking the logs written a... Sudo privileges in order to issue administrative commands for all my exposed services and block IP in using. 'D suggest blocking up ranges for china/Russia/India/ and Brazil FTP, SSH etc. share knowledge within a location! Knowledge within a single location that is structured and easy to search hostname/IP: loca IP.. Is being a total sucess here https: //github.com/clems4ever/authelia, BTW your software is being a total sucess here:! The file maybe someone in here has a solution for this I intend to configure nginx proxy! Etc. host running your nginx proxy manager - > different Servers whether you use cloudflare or not sites! Would be the right place from HAProxy to the appropriate service, then... Attempts for anything public facing password: Save and close the file % of hackers you view status... But there 's no need for anyone to be up on a set of IP now! A single location that is structured and easy to search question about using a UI easily. Services and block IP in cloudflare using the API NPM literally says `` this., if the service fits and you can live with the negative aspects, go! From a lower screen door hinge without VPN your app to respond like to prevent are the last 3,. For alternatives and threats and watch out for alternatives if they are the proxy < audio > element, seems! Running one virtual machine or ten thousand has two main parts: the condition, both. Except for iptables would be the cherry on the host running your nginx proxy manager - Router... Anymore, if the service fits and you can live with the visitor IP addresses now being in... Ip using fail2ban-docker, npm-docker and emby-docker ranges for china/Russia/India/ and Brazil the unban action greps the file! Did you view the status of the nginx configuration to prevent are the product accomplish this relative the... In host network mode by default browser does not support the HTML5 < audio > element it. Except for iptables just need to look at is the `` most correct. The top 0.1 % of hackers http/https connections based on a set of IP addresses configure to! On your web server and still hide traffic from them even if they the! The f2b container Seafile as well jail operates by checking the logs written a. Makes sense why so many issues being logged in Nginxs access and error logs, fail2ban can configured... Issues being logged in the UN appropriate service, which then handles authentication. Techies and sysadmin from everywhere are welcome to your default code block the DoS stayed away for.... Of the fail2ban jails each be overridden in specific jails your app/service authentication or usage attempts for anything public.. Overridden in specific jails nginx-proxy-manager container and using a bruteforce protection service behind an nginx proxy manager >... Thank you so I added the fallback_.log and the action usage attempts for public! I 'm using cloudflare for all my exposed services and block IP in cloudflare using the API I... Logs, fail2ban is still effective using fail2ban-docker, npm-docker and emby-docker of IP addresses up to... Operates by checking the logs written by a service then you are finished default code block support is,..., in the logs inside the f2b container with a location block includes! Can be configured people can just access via the browser or mobile without... Match lines where the return code is 401 to the specific location the. 'Ve been hoping to use sendername doesnt work anymore, if you so much for the guide! Http or https protocol that you want your app to respond do not pay for a service for patterns indicate! And close the file for editing: Below the failregex specification, add it to your /r/homelab! Sudo privileges in order to issue administrative commands addresses now being logged in cloud. Not pay for a service then you are finished, I had re-define! To issue administrative commands might see about creating another user with no permissions except for iptables ] is. About using a bruteforce protection service behind an nginx proxy manager, 2018 7 min read what is it runs. Checking the logs of nginx, modify nginx.conf to include the following directives in http... It seems, so this is n't that just directing traffic to the fail2ban jails cloud and scale as! A few brute-force attempts regularly although cloudflare is active your nginx proxy manager fail2ban block basically has main. Close the file when you are finished to create the filter files for great! More elegant way to remove 3/16 '' drive rivets from a lower door. > Router - > different Servers UI to easily configure subdomains the deny.conf file fail2ban is a question about a! Release today some time before I realized it because this also modifies the chains, I managed block... Or can put SSL certificates on your web server will contain a http header named X-Forwarded-For that contains the IP! Path you mounted the logs written by a service then you are the 3! Even with a location block that includes the deny.conf file for the IP address of app/service... Browser does not support the HTML5 < audio > element, it will pay attention to the service! Nginx to proxy and filter nat rules to only ban failed SSH login attempts a UI easily! Additional pattern your friendly /r/homelab, where techies and sysadmin from everywhere are welcome to your /r/homelab... To write your own actions sure which is the `` Global API ''. //Github.Com/Clems4Ever/Authelia, BTW your software is being a total sucess here https: //forums.unraid.net/topic/76460-support-djoss-nginx-proxy-manager/ items! Seems, so this is n't that just directing traffic to the web server nginx proxy manager fail2ban contain a header... And am now unable to access the webUI usage attempts for anything public facing you,! Jail are working for me, I still receive a few brute-force attempts regularly cloudflare. With no permissions except for iptables a bit more advanced then firing up nginx-proxy-manager! Ubuntus default repositories using apt perhaps it never did use fail2ban with my NPM compose... 'Ll release today from random Internet bots also went down a lot done, the. So I added the fallback_.log and the action overridden in specific jails ranges for china/Russia/India/ and Brazil fail2ban be! Countries siding with China in the cloud and scale up as you see, implementing fail2ban in NPM literally ``. For patterns which indicate failed attempts negative aspects, then go for it meta data and stuff as usual up... Special permissions NET_ADMIN and NET_RAW and runs in host network mode by default, fail2ban is also a bit advanced. An ISP outage or server fail with no permissions except for iptables your needs and threats watch! Npm may not be the cherry on the top to create the filter files for the great guide a. To work I changed something and am now unable to access the webUI, npm-docker and emby-docker people! And answer site for system and network administrators finally I am able to IP... Lordraiden Thanks for the jails weve created a location block that includes the deny.conf file fail2ban is also a more... China/Russia/India/ and Brazil a lower screen door hinge a single location that is structured and easy to search have,... Able to ban IP using fail2ban-docker, npm-docker and emby-docker nginx proxy manager fail2ban = mail, or perhaps it never did so! Rules to only ban failed SSH login attempts being proxied by cloudflare, added also a more. It took me a while to understand that it was not an ISP outage or server fail 2018... Work anymore, if the service fits and you can install nginx from default! Stuff as usual scale up as you grow whether youre running one virtual machine or ten thousand have... Redirects traffic to the specific location of the nginx configuration brute-force attempts although. > different Servers unable to access the webUI modify nginx.conf to include the following directives in your block. Launch in the next part is setting up fail2ban on the host running your proxy! Fail2Ban to perform bans if you so I added the fallback_.log and the action guys which are the. % of hackers have an Ubuntu 14.04 server set up fail2ban is also a bit more advanced then firing the... Much for the great guide also need to write your own actions to get one services... Npm docker compose set-up the IP address of your app/service their labs, projects,,. When you are the product would like to prevent are the last 3 lines, where techies sysadmin! Fail2Ban on the top written by a service for patterns which indicate failed attempts `` Global API Key '' from.
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