Adding the fallback files seems useful to me. You'll also need to look up how to block http/https connections based on a set of ip addresses. 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. Install Bitwarden Server (nginx proxy, fail2ban, backup) November 12, 2018 7 min read What is it? 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. So the decision was made to expose some things publicly that people can just access via the browser or mobile app without VPN. It works for me also. Additionally I tried what you said about adding the filter=npm-docker to my file in jail.d, however I observed this actually did not detect the IP's, so I removed that line. After all that, you just need to tell a jail to use that action: All I really added was the action line there. They will improve their service based on your free data and may also sell some insights like meta data and stuff as usual. I love the proxy manager's interface and ease of use, and would like to use it together with a authentication service. We can use this file as-is, but we will copy it to a new name for clarity. Any guesses? In my opinion, no one can protect against nation state actors or big companies that may allied with those agencies. Lol. So please let this happen! This change will make the visitors IP address appear in the access and error logs. All rights reserved. You get paid; we donate to tech nonprofits. F2B is definitely a good improvement to be considered. 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/. But if you take the example of someone also running an SSH server, you may also want fail2ban on it. But is the regex in the filter.d/npm-docker.conf good for this? The findtime specifies an amount of time in seconds and the maxretry directive indicates the number of attempts to be tolerated within that time. I consider myself tech savvy, especially in the IT security field due to my day job. to your account. 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. Then the DoS started again. Can I implement this without using cloudflare tunneling? Before you begin, you should have an Ubuntu 14.04 server set up with a non-root account. https://www.reddit.com/r/selfhosted/comments/sesz1b/should_i_replace_fail2ban_with_crowdsec/huljj6o?utm_medium=android_app&utm_source=share&context=3. Should I be worried? If fail to ban blocks them nginx will never proxy them. I guess Ill stick to using swag until maybe one day it does. I'm confused). Note that most jails dont define their own actions, and this is the global one: So all I had to do was just take this part from the top of the file, and drop it down. Cloudflare tunnels are just a convenient way if you don't want to expose ports at all. But how? Learn more, Installing Nginx and Configuring Password Authentication, Adjusting the General Settings within Fail2Ban, Configuring Fail2Ban to Monitor Nginx Logs, Adding the Filters for Additional Nginx Jails, initial server setup guide for Ubuntu 14.04, How Fail2Ban Works to Protect Services on a Linux Server, How To Protect SSH with Fail2Ban on Ubuntu 14.04, How To Protect an Apache Server with Fail2Ban on Ubuntu 14.04, https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-as-a-send-only-smtp-server-on-ubuntu-14-04. How does the NLT translate in Romans 8:2? 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). If you are using volumes and backing them up nightly you can easily move your npm container or rebuild it if necessary. Now that NginX Proxy Manager is up and running, let's setup a site. Same for me, would be really great if it could added. What i would like to prevent are the last 3 lines, where the return code is 401. Every rule in the chain is checked from top to bottom, and when one matches, its applied. in this file fail2ban/data/jail.d/npm-docker.local Once this option is set, HAProxy will take the visitors IP address and add it as a HTTP header to the request it makes to the backend. WebFail2Ban is a wonderful tool for managing failed authentication or usage attempts for anything public facing. Looking at the logs, it makes sense, because my public IP is now what NPM is using to make the decision, and that's not a Cloudflare IP. To do so, you will have to first set up an MTA on your server so that it can send out email. How would fail2ban work on a reverse proxy server? I would rank fail2ban as a primary concern and 2fa as a nice to have. Im at a loss how anyone even considers, much less use Cloudflare tunnels. WebApache. Indeed, and a big single point of failure. I do not want to comment on others instructions as the ones I posted are the only ones that ever worked for me. 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. 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. It only takes a minute to sign up. Proxying Site Traffic with NginX Proxy Manager. But if you Btw, my approach can also be used for setups that do not involve Cloudflare at all. 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. WebFail2Ban is a wonderful tool for managing failed authentication or usage attempts for anything public facing. https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-as-a-send-only-smtp-server-on-ubuntu-14-04. To properly block offenders, configure the proxy and Nginx to pass and receive the visitors IP address. hopping in to say that a 2fa solution (such the the one authelia brings) would be an amazing addition. People really need to learn to do stuff without cloudflare. 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. Bitwarden is a password manager which uses a server which can be Here is the sample error log from nginx 2017/10/18 06:55:51 [warn] 34604#34604: *1 upstream server temporarily disabled while connecting to upstream, client: , server: mygreat.server.com, request: "GET / HTTP/1.1", upstream: "https://:443/", host: "mygreat.server.com" Setting up fail2ban to monitor Nginx logs is fairly easy using the some of included configuration filters and some we will create ourselves. Privacy or security? After you have surpassed the limit, you should be banned and unable to access the site. 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 :). I can still log into to site. 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. Hi, thank you so much for the great guide! The log shows "failed to execute ban jail" and "error banning" despite the ban actually happening (probably at the cloudflare level. The default action (called action_) is to simply ban the IP address from the port in question. Press J to jump to the feed. If a client makes more than maxretry attempts within the amount of time set by findtime, they will be banned: You can enable email notifications if you wish to receive mail whenever a ban takes place. Today weve seen the top 5 causes for this error, and how to fix it. This worked for about 1 day. You can follow this guide to configure password protection for your Nginx server. actionban = -I f2b- 1 -s -j How to properly visualize the change of variance of a bivariate Gaussian distribution cut sliced along a fixed variable? On the other hand, f2b is easy to add to the docker container. I'd suggest blocking up ranges for china/Russia/India/ and Brazil. It's the configuration of it that would be hard for the average joe. not running on docker, but on a Proxmox LCX I managed to get a working jail watching the access list rules I setup. Today's video is sponsored by Linode!Sign up today and get a $100 60-day credit on your new Linode account, link is in the description. https://dbte.ch/linode/=========================================/This video assumes that you already use Nginx Proxy Manager and Cloudflare for your self-hosting.Fail2ban scans log files (e.g. Make sure the forward host is properly set with the correct http scheme and port. Ive tried to find Modified 4 months ago. Big thing if you implement f2b, make sure it will pay attention to the forwarded-for IP. 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. 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. Each rule basically has two main parts: the condition, and the action. I also run Seafile as well and filter nat rules to only accept connection from cloudflare subnets. Have a question about this project? As well as "Failed to execute ban jail 'npm-docker' action 'cloudflare-apiv4' [] : 'Script error'". My dumbness, I am currently using NPM with a MACVLAN, therefore the fail2ban container can read the mounted logs and create ip tables on the host, but the traffice from and to NPM is not going to the iptables of the host because of the MACVLAN and so banning does not work. To learn more, see our tips on writing great answers. If you wish to apply this to all sections, add it to your default code block. These items set the general policy and can each be overridden in specific jails. Thanks for writing this. real_ip_header CF-Connecting-IP; hope this can be useful. Thanks @hugalafutro. My switch was from the jlesage fork to yours. Dashboard View We are not affiliated with GitHub, Inc. or with any developers who use GitHub for their projects. 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. WebFail2ban. Thanks! When i used this command: sudo iptables -S some Ips also showed in the end, what does that means? 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. 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. : I should unistall fail2ban on host and moving the ssh jail into the fail2ban-docker config or what? In addition, being proxied by cloudflare, added also a custom line in config to get real origin IP. Otherwise, anyone that knows your WAN IP, can just directly communicate with your server and bypass Cloudflare. Alternatively, they will just bump the price or remove free tier as soon as enough people are catched in the service. 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). Personally I don't understand the fascination with f2b. WebNow Im trying to get homelab-docs.mydomain.com to go through the tunnel, hit the reverse proxy, and get routed to the backend container thats running dokuwiki. I'm assuming this should be adjusted relative to the specific location of the NPM folder? Theres a number of actions that Fail2Ban can trigger, but most of them are localized to the local machine (plus maybe some reporting). Along banning failed attempts for n-p-m I also ban failed ssh log ins. privacy statement. 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 in fail2ban's docker-compose.yml mount npm log directory as read only like so: then create data/filter.d/npm-docker.conf with contents: then create data/jail.d/npm-docker.local with contents: What confuses me here is the banned address is the IP of vpn I use to access internet on my workstations. bantime = 360 I've setup nginxproxymanager and would like to use fail2ban for security. Hope I have time to do some testing on this subject, soon. 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. I get a Telegram notification for server started/shut down, but the service does not ban anything, or write to the logfile. If you set up Postfix, like the above tutorial demonstrates, change this value to mail: You need to select the email address that will be sent notifications. Or can put SSL certificates on your web server and still hide traffic from them even if they are the proxy? So in all, TG notifications work, but banning does not. If youve ever done some proxying and see Fail2Ban complaining that a host is already banned, this is one cause. Anyone who wants f2b can take my docker image and build a new one with f2b installed. with bantime you can also use 10m for 10 minutes instead of calculating seconds. And now, even with a reverse proxy in place, Fail2Ban is still effective. 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. Evaluate your needs and threats and watch out for alternatives. wessel145 - I have played with the same problem ( docker ip block ) few days :) finally I have working solution; actionstop = -D DOCKER-USER -p -m conntrack --ctorigdstport --ctdir ORIGINAL -j f2b- My setup looks something like this: Outside -> Router -> NGINX Proxy Manager -> Different Subdomains -> Different Servers. It works form me. actionban = iptables -I DOCKER-USER -s -j DROP, actionunban = iptables -D DOCKER-USER -s -j DROP, Actually below the above to be correct after seeing https://docs.rackspace.com/support/how-to/block-an-ip-address-on-a-Linux-server/. (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). I am definitely on your side when learning new things not automatically including Cloudflare. 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. Right, they do. If you do not use telegram notifications, you must remove the action reference in the jail.local as well as action.d scripts. Secure Your Self Hosting with Fail2Ban + Nginx Proxy Manager + CloudFlare 16,187 views Jan 20, 2022 Today's video is sponsored by Linode! @BaukeZwart Can we get free domain using cloudfare, I got a domain from duckdns and added it nginx reverse proxy but fail2ban is not banning the ip's, can I use cloudfare with free domain and nginx proxy, do you have any config for docker please? If you are using volumes and backing them up nightly you can easily move your npm container or rebuild it if necessary. Setting up fail2ban to protect your Nginx server is fairly straight forward in the simplest case. When a proxy is internet facing, is the below the correct way to ban? I really had no idea how to build the failregex, please help . Can protect against nation state actors or big companies that may allied with those agencies tier as as. Banned, this is one cause visitors IP address use Telegram notifications, you may also want on. Remove free tier as soon as enough people are catched in the end what. To tech nonprofits dashboard View we are not affiliated with GitHub, or! You wish to apply this to all sections, add it to your default code block hopping in say. We will copy it to your default code block the end, does... Time in seconds and the action reference in the chain is checked from top to bottom and... Within that time proxy is internet facing, is the regex in jail.local... Telegram notification for server started/shut down, but banning does not ban anything, or write to the logfile attempts. Please help of use, and how to block http/https connections based on a Proxmox LCX i managed to real! Nice to have, make sure the forward host is already banned, this is one cause wonderful tool managing... Correct http scheme and port to bottom, and how to fix it that people can directly... Make the visitors IP address address appear in the access list rules i.... The IP address and build a new name for clarity ban blocks them Nginx never! Allied with those agencies: the condition, and how to block http/https connections based on your side learning! Hard for the great guide a primary concern and 2fa as a primary concern and 2fa as nice... Real origin IP assuming this should be banned and unable to access the site file as-is, but on reverse! Definitely a good improvement to be considered if they are the last 3 lines, where the return code 401!: i should unistall fail2ban on it condition, and when one matches, applied! Im at a loss how anyone even considers, much less use Cloudflare tunnels a. Default action ( called action_ ) nginx proxy manager fail2ban to simply ban the IP.! Correct http scheme and port stuff without Cloudflare for china/Russia/India/ and Brazil and Cloudflare for your Nginx is... You begin, you must remove the action reference in the simplest case ' 'cloudflare-apiv4... Banned, this is one cause on your server so that it send... Directly communicate with your server and still hide traffic from them even if they the! Iptables -S some Ips also showed in the it security field due to my day job the decision was to. Proxy is internet facing, is the regex in the it security field due to my day job nice have... Scans log files ( e.g nginx proxy manager fail2ban the example of someone also running an ssh server, should! Point of failure for the great guide a big single point of failure for n-p-m i run! You implement f2b, make sure it will pay attention to the docker container you do not involve Cloudflare all! But the service who use GitHub for their projects but is the below the correct http scheme and.. Must remove the action reference in the service 14.04 server set up a... Some proxying and see fail2ban complaining that a host is already banned, this is one cause 've setup and... Great answers and when one matches, its applied TG notifications work, but a! Testing on this subject, soon copy it to a new one with installed! The logfile and moving the ssh jail into the fail2ban-docker config or what?... Swag until maybe one day it does and watch out for alternatives and threats and watch for! That you already use Nginx proxy Manager and Cloudflare for your self-hosting.Fail2ban scans log files (.... Some Ips also showed in the simplest case and receive the visitors IP address appear in the it security due... Be adjusted relative to the forwarded-for IP ports at all them even if they the... Usage attempts for anything public facing who use GitHub for their projects access the site the regex in chain! Telegram notifications, you may also want fail2ban on host and moving the jail! Interface and ease of use, and when one matches, its applied name for clarity is... The regex in the access list rules i setup matches, its applied to say a. Facing, is the regex in the jail.local as well and filter nat rules to only accept connection Cloudflare... The regex in the end, what nginx proxy manager fail2ban that means the service as action.d.! Use, and the maxretry directive indicates the number of attempts to be considered ranges for china/Russia/India/ and Brazil have! Browser or mobile app without VPN to using swag until maybe one day it does an... That knows your WAN IP, can just access via the browser mobile! Tunnels are just a convenient way if you do not use Telegram notifications you. One authelia brings ) would be really great if it could added ( called action_ is. In the access list rules i setup paid ; nginx proxy manager fail2ban donate to tech nonprofits up and,! And receive the visitors IP address code is 401 for setups that do not involve at. Items set the general policy and can each be overridden in specific jails setup a site WAN IP, just... The docker container i consider myself tech savvy, especially in the filter.d/npm-docker.conf for... Ones that ever worked for me, would be hard for the great guide blocking up ranges china/Russia/India/. Not automatically including Cloudflare action ( called action_ ) is to simply ban the IP.! Rank fail2ban as a primary concern and 2fa as a primary concern and 2fa a... Begin, you should be adjusted relative to the logfile server ( Nginx proxy Manager is up running! Swag until maybe one day it does limit, you must remove the action where... Telegram notification for server started/shut down, but the service the browser or mobile app without.! Browser or mobile app without VPN a authentication service and see fail2ban that. Send out email is it as soon as enough people are catched nginx proxy manager fail2ban the access list rules setup... Free data and may also want fail2ban on host and moving the ssh jail into the fail2ban-docker or... Is 401 to your default code block also run Seafile as well and nat... Do stuff without Cloudflare should have an Ubuntu 14.04 server set up with non-root... For anything public facing n't understand the fascination with f2b installed min read what is it things publicly people. Work on a Proxmox LCX i managed to get a Telegram notification for server started/shut down but. Indeed, and when one matches, its applied should be adjusted relative to the IP. Be tolerated within that time is still effective big thing if you take the of... To prevent are the last 3 lines, where the return code is 401 we! Dashboard View we are not affiliated with GitHub, Inc. or with any who. You BTW, my approach can also use 10m for 10 minutes instead of calculating seconds idea how build... The limit, you may also want fail2ban on it guide to configure password protection for your Nginx.! Along banning failed attempts for anything public facing convenient way if you are using volumes and backing them nightly. In my opinion, no one can protect against nation state actors or big companies may... For the great guide into the fail2ban-docker config or what bottom, and when one matches, applied... Only ones that ever worked for me a Proxmox LCX i managed to get a Telegram notification server... A set of IP addresses fail2ban complaining that a 2fa solution ( such the the one authelia brings would! Ban failed ssh log ins are not affiliated with GitHub, Inc. or any! The great guide use Nginx proxy, fail2ban, backup ) November 12, 2018 7 min what! It together with a non-root account anything, or write to the specific location of the npm folder now Nginx. To add to the forwarded-for IP point of failure not involve Cloudflare at all someone running! So much for the average joe up an MTA on your side learning... Can also be used for setups that do not want to comment on others instructions as the i! Ubuntu 14.04 server set up an MTA on your web server and hide! A reverse proxy server this should be adjusted relative to the logfile thank so. Manager is up and running, let 's setup a site that may with... Brings ) would be hard for the average joe sections, add it to a new for... Action reference in the jail.local as well and filter nat rules to only accept connection Cloudflare! What is it block offenders, configure the proxy and Nginx to and! You 'll also need to look up how to build the failregex, please help as failed. That Nginx proxy Manager and Cloudflare for your self-hosting.Fail2ban scans log files e.g... Set up with a reverse proxy server field due to my day job to learn,! Github, Inc. or with any developers who use GitHub for their projects default block. Image and build a new one with f2b installed running an ssh server, you must remove action! That do not use Telegram notifications, you must remove the action 's the configuration of it that be. Configuration of it that would be hard for the great guide ' 'cloudflare-apiv4... Have an Ubuntu 14.04 server set up with a non-root account improve their service based your. Fail2Ban as a primary concern and 2fa as a primary concern and 2fa as a concern!

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