for reference The problem is that when i access my web services with an outside IP, for example like 99.99.99.99, my nginx proxy takes that request, wraps its own ip around it, for example 192.168.0.1, and then sends it to my webserver. 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. You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link! And those of us with that experience can easily tweak f2b to our liking. This is important - reloading ensures that changes made to the deny.conf file are recognized. This container runs with special permissions NET_ADMIN and NET_RAW and runs in host network mode by default. The number of distinct words in a sentence. But if you take the example of someone also running an SSH server, you may also want fail2ban on it. UsingRegex: ^.+" (4\d\d|3\d\d) (\d\d\d|\d) .+$ ^.+ 4\d\d \d\d\d - .+ \[Client \] \[Length .+\] ".+" .+$, [20/Jan/2022:19:19:45 +0000] - - 404 - GET https somesite.ca "/wp-login.php" [Client 8.8.8.8] [Length 172] [Gzip 3.21] [Sent-to somesite] "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36" "-", DISREGARD It Works just fine! to your account. I've been hoping to use fail2ban with my npm docker compose set-up. Fail2ban is a daemon to ban hosts that cause multiple authentication errors.. Install/Setup. Nginx proxy manager, how to forward to a specific folder? 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. 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. In the volume directive of the compose file, you mention the path as - "../nginx-proxy-manager/data/logs/:/log/npm/:ro". /var/log/apache/error_log) and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc. Generally this is set globally, for all jails, though individual jails can change the action or parameters themselves. Its uh how do I put this, its one of those tools that you will never remember how to use, and there will be a second screen available with either the man page, or some kind souls blog post explaining how to use it. Should be usually the case automatically, if you are not using Cloudflare or your service is using custom headers. Nginx is a web server which can also be used as a reverse proxy. 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. bleepcoder.com uses publicly licensed GitHub information to provide developers around the world with solutions to their problems. I love the proxy manager's interface and ease of use, and would like to use it together with a authentication service. Sign up for Infrastructure as a Newsletter. Otherwise, anyone that knows your WAN IP, can just directly communicate with your server and bypass Cloudflare. Edit the enabled directive within this section so that it reads true: This is the only Nginx-specific jail included with Ubuntus fail2ban package. The typical Internet bots probing your stuff and a few threat actors that actively search for weak spots. I understand that there are malicious people out there and there are users who want to protect themselves, but is f2b the only way for them to do this? Description. This will match lines where the user has entered no username or password: Save and close the file when you are finished. In my opinion, no one can protect against nation state actors or big companies that may allied with those agencies. The supplied /etc/fail2ban/jail.conf file is the main provided resource for this. However, having a separate instance of fail2ban (either running on the host or on a different container) allows you to monitor all of your containers/servers. 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. Right, they do. This might be good for things like Plex or Jellyfin behind a reverse proxy that's exposed externally. This has a pretty simple sequence of events: So naturally, when host 192.0.2.7 says Hey heres a connection from 203.0.11.45, the application knows that 203.0.11.45 is the client, and what it should log, but iptables isnt seeing a connection from 203.0.11.45, its seeing a connection from 192.0.2.7 thats passing it on. is there a chinese version of ex. edit: most of your issues stem from having different paths / container / filter names imho, set it up exactly as I posted as that works to try it out, and then you can start adjusting paths and file locations and container names provided you change them in all relevant places. So the decision was made to expose some things publicly that people can just access via the browser or mobile app without VPN. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, How to Unban an IP properly with Fail2Ban, Permanent block of IP after n retries using fail2ban. Since its the proxy thats accepting the client connections, the actual server host, even if its logging system understands whats happening (say, with PROXY protocol) and logs the real clients IP address, even if Fail2Ban puts that IP into the iptables rules, since thats not the connecting IP, it means nothing. WebApache. The only workaround I know for nginx to handle this is to work on tcp level. Or the one guy just randomly DoS'ing your server for the lulz. The condition is further split into the source, and the destination. But are you really worth to be hacked by nation state? If I test I get no hits. If you are interested in protecting your Nginx server with fail2ban, you might already have a server set up and running. I've got a question about using a bruteforce protection service behind an nginx proxy. This one mixes too many things together. 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 :). 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? Very informative and clear. However, it has an unintended side effect of blocking services like Nextcloud or Home Assistant where we define the trusted proxies. Still, nice presentation and good explanations about the whole ordeal. There are a few ways to do this. WebFail2Ban is a wonderful tool for managing failed authentication or usage attempts for anything public facing. Forward port: LAN port number of your app/service. @jellingwood Update the local package index and install by typing: The fail2ban service is useful for protecting login entry points. if you have all local networks excluded and use a VPN for access. 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. According to https://www.home-assistant.io/docs/ecosystem/nginx/, it seems that you need to enable WebSocket support. You may also have to adjust the config of HA. 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. Today weve seen the top 5 causes for this error, and how to fix it. Always a personal decision and you can change your opinion any time. Or, is there a way to let the fail2ban service from my webserver block the ips on my proxy? I have my fail2ban work : Do someone have any idea what I should do? 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. First, create a new jail: [nginx-proxy] enabled = true port = http logpath = % Tldr: Don't use Cloudflare for everything. To remove mod_cloudflare, you should comment out the Apache config line that loads mod_cloudflare. 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. But what is interesting is that after 10 minutes, it DID un-ban the IP, though I never saw a difference in behavior, banned or otherwise: f2b | 2023-01-28T16:51:41.122149261Z 2023-01-28 11:51:41,121 fail2ban.actions [1]: NOTICE [npm-general-forceful-browsing] Unban 75.225.129.88. Proxying Site Traffic with NginX Proxy Manager. sendername = Fail2Ban-Alert --The same result happens if I comment out the line "logpath - /var/log/npm/*.log". Depends. https://www.fail2ban.org/wiki/index.php/Main_Page, and a 2 step verification method Viewed 158 times. However, we can create our own jails to add additional functionality. 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With those agencies that knows your WAN IP, can just access via the or!
