An evolving how-to guide for securing a Linux server.
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Updated
Mar 20, 2022
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An evolving how-to guide for securing a Linux server.
Lynis - Security auditing tool for Linux, macOS, and UNIX-based systems. Assists with compliance testing (HIPAA/ISO27001/PCI DSS) and system hardening. Agentless, and installation optional.
This guide details creating a secure Linux production system. OpenSCAP (C2S/CIS, STIG).
Prowler is an Open Source security tool to perform AWS security best practices assessments, audits, incident response, continuous monitoring, hardening and forensics readiness. It contains more than 200 controls covering CIS, PCI-DSS, ISO27001, GDPR, HIPAA, FFIEC, SOC2, AWS FTR, ENS and custom security frameworks.
This Ansible collection provides battle tested hardening for Linux, SSH, nginx, MySQL
Security automation content in SCAP, Bash, Ansible, and other formats
Windows Hardening settings and configurations
LunaSec - Open Source AppSec platform that automatically notifies you the next time vulnerabilities like Log4Shell or node-ipc happen. Track your dependencies and builds in a centralized service. Get started in one-click via our GitHub App or host it yourself. https://github.com/apps/lunatrace-by-lunasec/
Hardening Ubuntu. Systemd edition.
Terraform module to set up your AWS account with the secure baseline configuration based on CIS Amazon Web Services Foundations and AWS Foundational Security Best Practices.
This Ansible role provides numerous security-related ssh configurations, providing all-round base protection.
Automated System Hardening Framework
Hardened allocator designed for modern systems. It has integration into Android's Bionic libc and can be used externally with musl and glibc as a dynamic library for use on other Linux-based platforms. It will gain more portability / integration over time.
AWS Auditing & Hardening Tool
I'm not confident in the security brought by the readonly_exec statement.
In the classical *nix DAC model, it is expected for unprivileged users to be able to change the write permission flag on files they own. Therefore, Snuffleupagus readonly_exec statement only relies on the hope that an attacker won't find a way to rely on this standard mechanism to prevent the execution of arbitrary
Hardening Script for Linux Servers/ Secure LAMP-LEMP Deployer/ CIS Benchmark
Ansible role for Red Hat 7 CIS Baseline
This repository is a collection of resources to prepare for the Certified Kubernetes Security Specialist (CKSS) exam.
CIS Docker Benchmark - InSpec Profile
Every now and then happens that the instance fails to boot up and it would be good to have a way how to debug it, AWS just provided it. aws-gate should have support for this.
More https://aws.amazon.com/about-aws/whats-new/2021/03/introducing-ec2-serial-console/
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https://github.com/0xmachos/mOSL is a good replacement until this is updated.
Basically, we should remove all settings that are no longer relevant, and add ones that are newly added.