madaidans-insecurities.github.io VS ansible-collection-hardening

Recommend reading the Linux sections on https://madaidans-insecurities.github.io/

That's somewhat telling and can be used to "track" you, consider reading on non-Reddit privsec learning resources like Privacy Guides itself which you already know, PrivSec.Dev, madaidan's Insecurities and the like.

Considering the offer is legitimate (something I won't comment on), you shouldn't do most of these things, in my opinion. Don't mess with what'll be other people's phones. Sell them Pixels pre-installed with GrapheneOS and print papers with Auditor attestation instructions and maybe a few QR codes directing them to relevant documentation and privsec learning resources, such as the GrapheneOS documentation first and foremost, Privacy Guides, madaidan's Insecurities, PrivSec.dev, Seirdy's Home, Wonderfall's Lab, etc...

i never used it myself. only learned about it from security experts like madaidan or hardening guides like this one.

For some excellent advice on security and privacy based on thoroughly researched technical concerns rather than speculation or blind trust in your corporation of choice, see here: https://madaidans-insecurities.github.io/

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