setup-ipsec-vpn VS ansible-collection-hardening

I can't connect to VPN. I have run VPN on this Raspberry Pi via IPsec. All of a sudden it stopped working. I tried installing IPsec on another Raspberry Pi, with no success, the same problem. I can't connect.

I have set up a vpn server using this, https://github.com/hwdsl2/setup-ipsec-vpn. I am able to log into the server and shut it down if I chose.

ok so here is the deal... I am currently running this script on a rpi at home that also runs a pihole... I do this for 24/7 ad blocking on my phone and to get around blocks on public wifi...

First, go here and use this setup https://github.com/hwdsl2/setup-ipsec-vpn . I put this on a raspberry pi and it works great, but you can put this on an old laptop or really anything.

you can run your own vpn node on some cheap vps server using algo (https://github.com/trailofbits/algo) or this: https://github.com/hwdsl2/setup-ipsec-vpn

An ansible collection for hardening Linux systems I mostly wrote: https://github.com/dev-sec/ansible-collection-hardening

Another ansible collection to manage Icinga: https://github.com/T-Systems-MMS/ansible-collection-icinga-d...

And the yunohost app for invoice ninja: https://github.com/YunoHost-Apps/invoiceninja5_ynh

i have some packer builds where itll install ansible, run playbooks locally, then uninstall ansible. such as the the devsec os hardening role: https://github.com/dev-sec/ansible-collection-hardening

This collection is also interesting https://github.com/dev-sec/ansible-collection-hardening/

Second you want to ensure the os is secure and up to date. Take a look at os hardening best practices, for example this ansible playbook for linux: https://github.com/dev-sec/ansible-collection-hardening

To ensure SSH and other security related things are configured correctly, you can take a look at DevSec which helps you to apply proven security configuration principles. Also there is guides like "Secure Secure Shell" which can help you to better understand what you can do to increase the security of your servers (this one is from 2015 but many aspects are still relevant).

I learned a lot by using and reading through the source code of these ansible roles: https://github.com/dev-sec/ansible-collection-hardening

Have a look at https://github.com/dev-sec/ansible-collection-hardening

You can do much more https://github.com/dev-sec/ansible-collection-hardening/tree/master/roles/ssh_hardening