infra VS crowdsec

Yes that's the easiest way to do it. Recently I wanted to have HTTPS locally for some apps to make my life easier (and also not route my traffic through the VPS when I'm at home). I therefore did some DNS stuff on Adguard to point `example.com` to the second caddy server instead of to the VPS. To do that I had to make some changes upstream so now the traffic is proxied down from the VPS over HTTPS and I can connect to the second server via HTTPS too. You can see my updated Caddyfiles here and here. But that's pretty advanced and just terminating SSL on the VPS was much easier/simpler.

It's not VMs (I use LXCs instead) but it's pretty similar: https://github.com/FuzzyMistborn/infra/blob/main/roles/adonalsium/tasks/infrastructure.yml

I found an actions.d script that uses the Cloudflare APIv4. See here for the code: https://github.com/FuzzyMistborn/infra/blob/main/templates/fail2ban/action.d/cloudflare-apiv4.conf.j2

And I built a playbook that asks for the vm/lxc to update and the container and it does a pull/up/prune. https://github.com/FuzzyMistborn/infra/blob/main/docker.yml

Hey we actually built the second part as a product. Its a modern revamp of fail2ban combined with crowdsourcing aspect to deliver an up-to-date blocklist of active threats. You can check it out at https://github.com/crowdsecurity/crowdsec

Today we are pleased to announce the launch of CrowdSec Engine 1.5 - this is a huge milestone for the project and one that would not have been possible without the help of this community. You can read see the full change log over on GitHub here https://github.com/crowdsecurity/crowdsec/releases

wget https://github.com/crowdsecurity/crowdsec/releases/latest/download/crowdsec-release.tgz server:> tar xzvf crowdsec-release.tgz https://github.com/crowdsecurity/crowdsec/releases/latest/download/crowdsec-release.tgz server: > tar xzvf crowdsec-release.tgz server:> cd crowdsec-v* && sudo ./wizard.sh -i

This tool crowdsec.net is really interesting to mitigate and enact defense systems for different scenarios.

CrowdSec is licensed under MIT open source license, you can find a copy of the text here: “Copyright 2020, CrowdSec SAS (http://crowdsec.net), Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.” That’s all there is to it. Like in the case of Debian, you can do anything you want with it, for free, period. You just need to embed this license when you redistribute the product.

You should check out https://crowdsec.net. More advanced, uses crowdsources cti to block attacks even before they happen. Also both nginx and captcha is supported. Disclaimer: I am head of community. Visit /r/CrowdSec or our Discord at https://discord.gg/crowdsec if you have questions :-)

Do I need something like crowdsec, or is WireGuard secure enough on its own?

Before falling too much in love with Fail2Ban try taking a look at https://crowdsec.net. Similar functionality but way more advanced (but easier to configure). New project that leverages the power of the crowd and shares information of attacks among users so they help each other out protecting themselves.