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# awesome-security-hardening
[![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)
A collection of awesome security hardening guides, best practices, checklists, benchmarks, tools and other resources.
This is work in progress: please contribute by sending your suggestions. You may do this by creating [issue tickets](https://github.com/decalage2/awesome-security-hardening/issues) or forking, editing and sending pull requests. You may also send suggestions on Twitter to [@decalage2](https://twitter.com/decalage2), or use https://www.decalage.info/contact
------
# Table of Contents
- [Security Hardening Guides and Best Practices](#security-hardening-guides-and-best-practices)
- [Hardening Guide Collections](#hardening-guide-collections)
- [GNU/Linux](#gnulinux)
- [Red Hat Enterprise Linux - RHEL](#red-hat-enterprise-linux---rhel)
- [CentOS](#centos)
- [SUSE](#suse)
- [Ubuntu](#ubuntu)
- [Windows](#windows)
- [macOS](#macos)
- [Network Devices](#network-devices)
- [Switches](#switches)
- [Routers](#routers)
- [IPv6](#ipv6)
- [Firewalls](#firewalls)
- [Virtualization - VMware](#virtualization---vmware)
- [Containers - Docker](#containers---docker)
- [Services](#services)
- [SSH](#ssh)
- [TLS/SSL](#tlsssl)
- [Web Servers](#web-servers)
- [Apache HTTP Server](#apache-http-server)
- [Apache Tomcat](#apache-tomcat)
- [Eclipse Jetty](#eclipse-jetty)
- [Microsoft IIS](#microsoft-iis)
- [Mail Servers](#mail-servers)
- [FTP Servers](#ftp-servers)
- [Database Servers](#database-servers)
- [Active Directory](#active-directory)
- [ADFS](#adfs)
- [Kerberos](#kerberos)
- [LDAP](#ldap)
- [DNS](#dns)
- [NTP](#ntp)
- [NFS](#nfs)
- [CUPS](#cups)
- [Authentication - Passwords](#authentication---passwords)
- [Hardware - CPU - BIOS - UEFI](#hardware---cpu---bios---uefi)
- [Cloud](#cloud)
- [Tools](#tools)
- [Tools to check security hardening](#tools-to-check-security-hardening)
- [GNU/Linux](#gnulinux-1)
- [Windows](#windows-1)
- [Network Devices](#network-devices-1)
- [TLS/SSL](#tlsssl-1)
- [SSH](#ssh-1)
- [Hardware - CPU - BIOS - UEFI](#hardware---cpu---bios---uefi-1)
- [Docker](#docker)
- [Cloud](#cloud-1)
- [Tools to apply security hardening](#tools-to-apply-security-hardening)
- [GNU/Linux](#gnulinux-2)
- [Windows](#windows-2)
- [TLS/SSL](#tlsssl-2)
- [Cloud](#cloud-2)
- [Password Generators](#password-generators)
- [Books](#books)
- [Other Awesome Lists](#other-awesome-lists)
- [Other Awesome Security Lists](#other-awesome-security-lists)
------
# Security Hardening Guides and Best Practices
## Hardening Guide Collections
- [CIS Benchmarks](https://www.cisecurity.org/cis-benchmarks/) (registration required)
- [ANSSI Best Practices](https://www.ssi.gouv.fr/en/best-practices/)
- [NSA Security Configuration Guidance](https://apps.nsa.gov/iaarchive/library/ia-guidance/security-configuration/index.cfm?PAGE=1&itemsQty=ALL)
- [NSA Cybersecurity Resources for Cybersecurity Professionals](https://www.nsa.gov/what-we-do/cybersecurity/) and [NSA Cybersecurity publications](https://nsacyber.github.io/publications.html)
- [US DoD DISA Security Technical Implementation Guides (STIGs) and Security Requirements Guides (SRGs)](https://public.cyber.mil/stigs/)
- [OpenSCAP Security Policies](https://www.open-scap.org/security-policies/)
- [Australian Cyber Security Center Publications](https://www.cyber.gov.au/publications)
- [FIRST Best Practice Guide Library (BPGL)](https://www.first.org/resources/guides/)
- [Harden the World](http://hardentheworld.org/) - a collection of hardening guidelines for devices, applications and OSs (mostly Apple for now).
## GNU/Linux
- [ANSSI - Configuration recommendations of a GNU/Linux system](https://www.ssi.gouv.fr/en/guide/configuration-recommendations-of-a-gnulinux-system/)
- [CIS Benchmark for Distribution Independent Linux](https://www.cisecurity.org/benchmark/distribution_independent_linux/)
- [trimstray - The Practical Linux Hardening Guide](https://github.com/trimstray/the-practical-linux-hardening-guide) - practical step-by-step instructions for building your own hardened systems and services. Tested on CentOS 7 and RHEL 7.
- [trimstray - Linux Hardening Checklist](https://github.com/trimstray/linux-hardening-checklist) - most important hardening rules for GNU/Linux systems (summarized version of The Practical Linux Hardening Guide)
- [How To Secure A Linux Server](https://github.com/imthenachoman/How-To-Secure-A-Linux-Server) - for a single Linux server at home
- [nixCraft - 40 Linux Server Hardening Security Tips (2019 edition)](https://www.cyberciti.biz/tips/linux-security.html)
- [nixCraft - Tips To Protect Linux Servers Physical Console Access](https://www.cyberciti.biz/tips/tips-to-protect-linux-servers-physical-console-access.html)
- [TecMint - 4 Ways to Disable Root Account in Linux](https://www.tecmint.com/disable-root-login-in-linux/)
- [ERNW - IPv6 Hardening Guide for Linux Servers](https://www.ernw.de/download/ERNW_Guide_to_Securely_Configure_Linux_Servers_For_IPv6_v1_0.pdf)
- [trimstray - Iptables Essentials: Common Firewall Rules and Commands](https://github.com/trimstray/iptables-essentials)
### Red Hat Enterprise Linux - RHEL
- [Red Hat - A Guide to Securing Red Hat Enterprise Linux 7](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/security_guide/index)
- [DISA STIGs - Red Hat Enterprise Linux 7](https://public.cyber.mil/stigs/downloads/?_dl_facet_stigs=unix-linux) (2019)
- [CIS Benchmark for Red Hat Linux](https://www.cisecurity.org/benchmark/red_hat_linux/)
- [nixCraft - How to set up a firewall using FirewallD on RHEL 8](https://www.cyberciti.biz/faq/configure-set-up-a-firewall-using-firewalld-on-rhel-8/)
### CentOS
- [Lisenet - CentOS 7 Server Hardening Guide](https://www.lisenet.com/2017/centos-7-server-hardening-guide/) (2017)
- [HighOn.Coffee - Security Harden CentOS 7](https://highon.coffee/blog/security-harden-centos-7/) (2015)
### SUSE
- [SUSE Linux Enterprise Server 12 SP4 Security Guide](https://www.suse.com/documentation/sles-12/singlehtml/book_security/book_security.html)
- [SUSE Linux Enterprise Server 12 Security and Hardening Guide](https://www.suse.com/documentation/sles-12/book_hardening/data/book_hardening.html)
### Ubuntu
- [Ubuntu documentation - Security](https://help.ubuntu.com/lts/serverguide/security.html.en)
- [Ubuntu wiki - Security Hardening Features](https://wiki.ubuntu.com/Security/Features)
## Windows
- [Microsoft - Windows security baselines](https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-security-baselines)
- [Microsoft - Windows Server Security | Assurance](https://docs.microsoft.com/en-us/windows-server/security/security-and-assurance)
- [Microsoft - Windows 10 Enterprise Security](https://docs.microsoft.com/en-us/windows/security/)
- [ACSC - Hardening Microsoft Windows 10, version 1709, Workstations](https://www.cyber.gov.au/publications/hardening-microsoft-windows-10-build-1709)
- [ACSC - Securing PowerShell in the Enterprise](https://www.cyber.gov.au/publications/securing-powershell-in-the-enterprise)
- [Awesome Windows Domain Hardening](https://github.com/PaulSec/awesome-windows-domain-hardening)
- [Microsoft - How to detect, enable and disable SMBv1, SMBv2, and SMBv3 in Windows and Windows Server](https://support.microsoft.com/en-gb/help/2696547/detect-enable-disable-smbv1-smbv2-smbv3-in-windows-and-windows-server)
- [Microsoft recommended block rules](https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules) - List of applications or files that can be used by an attacker to circumvent application whitelisting policies
- [ERNW - IPv6 Hardening Guide for Windows Servers](https://www.ernw.de/download/ERNW_Guide_to_Configure_Securely_Windows_Servers_For_IPv6_v1_0.pdf)
- [NSA - AppLocker Guidance](https://github.com/nsacyber/AppLocker-Guidance) - Configuration guidance for implementing application whitelisting with AppLocker
- [NSA - Pass the Hash Guidance](https://github.com/nsacyber/Pass-the-Hash-Guidance) - Configuration guidance for implementing Pass-the-Hash mitigations (Archived)
- [NSA - BitLocker Guidance](https://github.com/nsacyber/BitLocker-Guidance) - Configuration guidance for implementing disk encryption with BitLocker
- [NSA - Event Forwarding Guidance](https://github.com/nsacyber/Event-Forwarding-Guidance) - Configuration guidance for implementing collection of security relevant Windows Event Log events by using Windows Event Forwarding
- [Windows Defense in Depth Strategies](https://docs.google.com/document/d/1_43UroB0zY4-R2E2r_nH4ndYpDmXAY8g0oTp8yWlwBk/edit?usp=sharing) - work in progress
- [Endpoint Isolation with the Windows Firewall](https://medium.com/@cryps1s/endpoint-isolation-with-the-windows-firewall-462a795f4cfb) based on Jessica Payne’s [‘Demystifying the Windows Firewall’](https://channel9.msdn.com/Events/Ignite/New-Zealand-2016/M377) talk from Ignite 2016
See also [Active Directory](#active-directory) and [ADFS](#adfs) below.
## macOS
- [ERNW - IPv6 Hardening Guide for OS-X](https://www.ernw.de/download/ERNW_Hardening_IPv6_MacOS-X_v1_0.pdf)
## Network Devices
- [NSA - Harden Network Devices](https://apps.nsa.gov/iaarchive/library/ia-guidance/security-tips/harden-network-devices.cfm) - very short but good summary
### Switches
- [DISA - Layer 2 Switch SRG](http://iasecontent.disa.mil/stigs/zip/U_Layer_2_Switch_V1R3_SRG.zip)
### Routers
- [NSA - A Guide to Border Gateway Protocol (BGP) Best Practices](https://www.nsa.gov/Portals/70/documents/what-we-do/cybersecurity/professional-resources/ctr-guide-to-border-gateway-protocol-best-practices.pdf?v=1)
### IPv6
- ERNW - Developing an Enterprise IPv6 Security Strategy [Part 1](https://www.insinuator.net/2015/12/developing-an-enterprise-ipv6-security-strategy-part-1-baseline-analysis-of-ipv4-network-security/), [Part 2](https://www.insinuator.net/2015/12/developing-an-enterprise-ipv6-security-strategy-part-2-network-isolation-on-the-routing-layer/), [Part 3](https://www.insinuator.net/2015/12/developing-an-enterprise-ipv6-security-strategy-part-3-traffic-filtering-in-ipv6-networks-i/), [Part 4](https://insinuator.net/2015/12/developing-an-enterprise-ipv6-security-strategy-part-4-traffic-filtering-in-ipv6-networks-ii/) - Network Isolation on the Routing Layer, Traffic Filtering in IPv6 Networks
- see also IPv6 links under GNU/Linux, Windows and macOS
### Firewalls
- [NIST SP 800-41 Rev 1 - Guidelines on Firewalls and Firewall Policy](https://www.nist.gov/publications/guidelines-firewalls-and-firewall-policy) (2009)
- [trimstray - Iptables Essentials: Common Firewall Rules and Commands](https://github.com/trimstray/iptables-essentials)
## Virtualization - VMware
- [VMware Security Hardening Guides](https://www.vmware.com/security/hardening-guides.html) - covers most VMware products and versions
- [CIS VMware ESXi 6.5 Benchmark](https://www.cisecurity.org/benchmark/vmware/) (2018)
- [DISA STIGs - Virtualisation](https://public.cyber.mil/stigs/downloads/?_dl_facet_stigs=virtualization) - VMware vSphere 6.0 and 5
- [ENISA - Security aspects of virtualization](https://www.enisa.europa.eu/publications/security-aspects-of-virtualization) - generic, high-level best practices for virtualization and containers (Feb 2017)
- [NIST SP 800-125 - Guide to Security for Full Virtualization Technologies](https://www.nist.gov/publications/guide-security-full-virtualization-technologies) - (2011)
- [NIST SP 800-125A Revision 1 - Security Recommendations for Server-based Hypervisor Platforms](https://csrc.nist.gov/publications/detail/sp/800-125a/rev-1/final) (2018)
- [NIST SP 800-125B Secure Virtual Network Configuration for Virtual Machine (VM) Protection](https://csrc.nist.gov/publications/detail/sp/800-125b/final) (2016)
- [ANSSI - Recommandations de sécurité pour les architectures basées sur VMware vSphere ESXi](https://www.ssi.gouv.fr/guide/recommandations-de-securite-pour-les-architectures-basees-sur-vmware-vsphere-esxi/) - for VMware 5.5 (2016), in French
## Containers - Docker
- [How To Harden Your Docker Containers](https://www.secjuice.com/how-to-harden-docker-containers/)
- [CIS Docker Benchmarks](https://www.cisecurity.org/benchmark/docker/) - registration required
- [NIST SP 800-190 - Application Container Security Guide](https://www.nist.gov/publications/application-container-security-guide)
## Services
### SSH
- [NIST IR 7966 - Security of Interactive and Automated Access Management Using Secure Shell (SSH)](https://nvlpubs.nist.gov/nistpubs/ir/2015/NIST.IR.7966.pdf)
- [ANSSI - (Open)SSH secure use recommendations](https://www.ssi.gouv.fr/en/guide/openssh-secure-use-recommendations/)
- [Linux Audit - OpenSSH security and hardening](https://linux-audit.com/audit-and-harden-your-ssh-configuration/)
- [Positron Security SSH Hardening Guides](https://www.sshaudit.com/hardening_guides.html) (2017-2018) - focused on crypto algorithms
- [stribika - Secure Secure Shell](https://stribika.github.io/2015/01/04/secure-secure-shell.html) (2015) - some algorithm recommendations might be slightly outdated
- [Applied Crypto Hardening: bettercrypto.org](https://bettercrypto.org/) - handy reference on how to configure the most common services’ crypto settings (TLS/SSL, PGP, SSH and other cryptographic tools)
- [IETF - Key Exchange (KEX) Method Updates and Recommendations for Secure Shell (SSH) draft-ietf-curdle-ssh-kex-sha2-10](https://tools.ietf.org/html/draft-ietf-curdle-ssh-kex-sha2-10) - update to the recommended set of key exchange methods for use in the Secure Shell (SSH) protocol to meet evolving needs for stronger security. This document updates RFC 4250.
- [Gravitational - How to SSH Properly](https://gravitational.com/blog/how-to-ssh-properly) - how to configure SSH to use certificates and two-factor authentication
### TLS/SSL
- [NIST SP800-52 Rev 2 (2nd draft) - Guidelines for the Selection, Configuration, and Use of Transport Layer Security (TLS) Implementations](https://csrc.nist.gov/publications/detail/sp/800-52/rev-2/draft) - 2018, recommends TLS 1.3
- [Netherlands NCSC - IT Security Guidelines for Transport Layer Security (TLS)](https://www.ncsc.nl/english/current-topics/factsheets/it-security-guidelines-for-transport-layer-security-tls.html) - 2019
- [ANSSI - Security Recommendations for TLS](https://www.ssi.gouv.fr/en/guide/security-recommendations-for-tls/) - 2017, does not cover TLS 1.3
- [Qualys SSL Labs - SSL and TLS Deployment Best Practices](https://github.com/ssllabs/research/wiki/SSL-and-TLS-Deployment-Best-Practices) - 2017, does not cover TLS 1.3
- [RFC 7540 Appendix A TLS 1.2 Cipher Suite Black List](https://tools.ietf.org/html/rfc7540#appendix-A)
- [Applied Crypto Hardening: bettercrypto.org](https://bettercrypto.org/) - handy reference on how to configure the most common services’ crypto settings (TLS/SSL, PGP, SSH and other cryptographic tools)
### Web Servers
- [Cipherli.st - Strong Ciphers for Apache, nginx and Lighttpd](https://cipherlist.daniel-ruf.de/)
#### Apache HTTP Server
- [Apache HTTP Server documentation - Security Tips](http://httpd.apache.org/docs/current/misc/security_tips.html)
- [GeekFlare - Apache Web Server Hardening and Security Guide](https://geekflare.com/apache-web-server-hardening-security/)
- [Apache Config - Apache Security Hardening Guide](https://www.apachecon.eu/)
#### Apache Tomcat
- [Apache Tomcat 9 Security Considerations](https://tomcat.apache.org/tomcat-9.0-doc/security-howto.html) / [v8](https://tomcat.apache.org/tomcat-8.0-doc/security-howto.html) / [v7](https://tomcat.apache.org/tomcat-7.0-doc/security-howto.html)
- [OWASP Securing tomcat](https://www.owasp.org/index.php/Securing_tomcat)
- [How to get Tomcat 9 to work with authbind to bind to port 80](https://serverfault.com/questions/889122/how-to-get-tomcat-9-to-work-with-authbind-to-bind-to-port-80)
#### Eclipse Jetty
- [Eclipse Jetty - Configuring Security](https://www.eclipse.org/jetty/documentation/current/configuring-security.html)
- [Jetty hardening](https://virgo47.wordpress.com/2015/02/07/jetty-hardening/) (2015)
#### Microsoft IIS
- [CIS Microsoft IIS Benchmarks](https://learn.cisecurity.org/benchmarks)
### Mail Servers
### FTP Servers
### Database Servers
### Active Directory
- [Microsoft - Best Practices for Securing Active Directory](https://docs.microsoft.com/en-us/windows-server/identity/ad-ds/plan/security-best-practices/best-practices-for-securing-active-directory)
- [ANSSI CERT-FR - Active Directory Security Assessment Checklist](https://www.cert.ssi.gouv.fr/uploads/guide-ad.html) - 2020 (English and French versions)
- ["Admin Free" Active Directory and Windows, Part 1- Understanding Privileged Groups in AD](https://blogs.technet.microsoft.com/lrobins/2011/06/23/admin-free-active-directory-and-windows-part-1-understanding-privileged-groups-in-ad/)
- ["Admin Free" Active Directory and Windows, Part 2- Protected Accounts and Groups in Active Directory](https://blogs.technet.microsoft.com/lrobins/2011/06/23/admin-free-active-directory-and-windows-part-2-protected-accounts-and-groups-in-active-directory/)
### ADFS
- [adsecurity.org - Securing Microsoft Active Directory Federation Server (ADFS)](https://adsecurity.org/?p=3782)
- [Microsoft - Best practices for securing Active Directory Federation Services](https://docs.microsoft.com/en-us/windows-server/identity/ad-fs/deployment/best-practices-securing-ad-fs)
### Kerberos
- [CIS MIT Kerberos 1.10 Benchmark](https://www.cisecurity.org/benchmark/mit_kerberos/) - 2012
### LDAP
- [OpenLDAP Software 2.4 Administrator's Guide - OpenLDAP Security Considerations](http://www.openldap.org/doc/admin24/security.html)
- [Best Practices in LDAP Security](https://www.skills-1st.co.uk/papers/ldap-best-2011/best-practices-in-ldap-security.pdf) (2011)
- [LDAP: Hardening Server Security (so administrators can sleep at night)](https://ff1959.wordpress.com/2013/07/31/ldap-hardening-server-security-so-administrators-can-sleep-at-night/)
- [LDAP Authentication Best Practices](http://web.archive.org/web/20130801091446/http://www.ldapguru.info/ldap/authentication-best-practices.html) - retrieved from web.archive.org
- [Hardening OpenLDAP on Linux with AppArmor and systemd](http://www.openldap.org/conf/odd-tuebingen-2018/Michael1.pdf) - slides
- [zytrax LDAP for Rocket Scientists - LDAP Security](http://www.zytrax.com/books/ldap/ch15/)
- [How To Encrypt OpenLDAP Connections Using STARTTLS](https://www.digitalocean.com/community/tutorials/how-to-encrypt-openldap-connections-using-starttls)
### DNS
- [CIS - BIND DNS Server 9.9 Benchmark](https://www.cisecurity.org/benchmark/bind/) (2017)
- [DISA STIGs - BIND 9.x](https://public.cyber.mil/stigs/compilations/) (2019)
- [NIST SP 800-81-2 - Secure Domain Name System (DNS) Deployment Guide](https://csrc.nist.gov/publications/detail/sp/800-81/2/final) (2013)
- [CMU SEI - Six Best Practices for Securing a Robust Domain Name System (DNS) Infrastructure](https://insights.sei.cmu.edu/sei_blog/2017/02/six-best-practices-for-securing-a-robust-domain-name-system-dns-infrastructure.html)
- [NSA BIND 9 DNS Security](https://apps.nsa.gov/iaarchive/library/ia-guidance/security-configuration/applications/bind-9-dns-security.cfm) (2011)
### NTP
- [IETF - Network Time Protocol Best Current Practices draft-ietf-ntp-bcp](https://tools.ietf.org/html/draft-ietf-ntp-bcp-13) (last draft #13 in March 2019)
- [CMU SEI - Best Practices for NTP Services](https://insights.sei.cmu.edu/sei_blog/2017/04/best-practices-for-ntp-services.html)
- [Linux.com - Arrive On Time With NTP -- Part 2: Security Options](https://www.linux.com/learn/arrive-time-ntp-part-2-security-options)
- [Linux.com - Arrive On Time With NTP -- Part 3: Secure Setup](https://www.linux.com/learn/2017/2/arrive-time-ntp-part-3-secure-setup)
### NFS
- [Linux NFS-HOWTO - Security and NFS](https://www.tldp.org/HOWTO/NFS-HOWTO/security.html) - a good overview of NFS security issues and some mitigations
- [Red Hat - A Guide to Securing Red Hat Enterprise Linux 7 - Securing NFS](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/security_guide/index#sec-Securing_NFS)
- [Red Hat - RHEL7 Storage Administration Guide - Securing NFS](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/s1-nfs-security)
- [NFSv4 without Kerberos and permissions](https://lists.debian.org/debian-user/2017/10/msg00476.html) - why NFSv4 without Kerberos does not provide security
- [CertDepot - RHEL7: Use Kerberos to control access to NFS network shares](https://www.certdepot.net/rhel7-use-kerberos-control-access-nfs-network-shares/)
### CUPS
- [CUPS Server Security](https://www.cups.org/doc/security.html)
## Authentication - Passwords
- [UK NCSC - Password administration for system owners](https://www.ncsc.gov.uk/collection/passwords)
- [NIST SP 800-63 Digital Identity Guidelines](https://pages.nist.gov/800-63-3/)
## Hardware - CPU - BIOS - UEFI
- [ANSSI - Hardware security requirements for x86 platforms](https://www.ssi.gouv.fr/en/guide/hardware-security-requirements-for-x86-platforms/) - recommendations for security features and configuration options applying to hardware devices (CPU, BIOS, UEFI, etc) (Nov 2019)
- [NSA - Hardware and Firmware Security Guidance](https://github.com/nsacyber/Hardware-and-Firmware-Security-Guidance) - Guidance for the Spectre, Meltdown, Speculative Store Bypass, Rogue System Register Read, Lazy FP State Restore, Bounds Check Bypass Store, TLBleed, and L1TF/Foreshadow vulnerabilities as well as general hardware and firmware security guidance.
- [NSA Info Sheet: UEFI Lockdown Quick Guidance (March 2018)](https://www.nsa.gov/Portals/70/documents/what-we-do/cybersecurity/professional-resources/csi-uefi-lockdown.pdf?v=1)
- [NSA Tech Report: UEFI Defensive Practices Guidance (July 2017)](https://www.nsa.gov/Portals/70/documents/what-we-do/cybersecurity/professional-resources/ctr-uefi-defensive-practices-guidance.pdf?ver=2018-11-06-074836-090)
## Cloud
- [NSA Info Sheet: Cloud Security Basics (August 2018)](https://www.nsa.gov/Portals/70/documents/what-we-do/cybersecurity/professional-resources/csi-cloud-security-basics.pdf?v=1)
- [DISA DoD Cloud Computing Security](https://iase.disa.mil/cloud_security/Pages/index.aspx)
- [asecure.cloud - Build a Secure Cloud](https://asecure.cloud/) - A free repository of customizable AWS security configurations and best practices
# Tools
## Tools to check security hardening
- [Chef InSpec](https://www.inspec.io/) - open-source testing framework by Chef that enables you to specify compliance, security, and other policy requirements. can run on Windows and many Linux distributions.
### GNU/Linux
- [Lynis](https://cisofy.com/lynis/) - script to check the configuration of Linux hosts
- [OpenSCAP Base](https://www.open-scap.org/tools/openscap-base/) - oscap command line tool
- [SCAP Workbench](https://www.open-scap.org/tools/scap-workbench/) - GUI for oscap
- [Tiger - The Unix security audit and intrusion detection tool](https://www.nongnu.org/tiger/) (might be outdated)
- [otseca](https://github.com/trimstray/otseca) - Open source security auditing tool to search and dump system configuration. It allows you to generate reports in HTML or RAW-HTML formats.
- [SUDO_KILLER](https://github.com/TH3xACE/SUDO_KILLER) - A tool to identify sudo rules' misconfigurations and vulnerabilities within sudo
- [CIS Benchmarks Audit](https://github.com/finalduty/cis_benchmarks_audit) - bash script which performs tests against your CentOS system to give an indication of whether the running server may comply with the CIS v2.2.0 Benchmarks for CentOS (only CentOS 7 for now)
### Windows
- [Microsoft Security Compliance Toolkit 1.0](https://docs.microsoft.com/en-us/windows/security/threat-protection/security-compliance-toolkit-10) - set of tools that allows enterprise security administrators to download, analyze, test, edit, and store Microsoft-recommended security configuration baselines for Windows and other Microsoft products
- [Microsoft DSC Environment Analyzer (DSCEA)](https://microsoft.github.io/DSCEA/) - simple implementation of PowerShell Desired State Configuration that uses the declarative nature of DSC to scan Windows OS based systems in an environment against a defined reference MOF file and generate compliance reports as to whether systems match the desired configuration
- [HardeningAuditor](https://github.com/cottinghamd/HardeningAuditor/) - Scripts for comparing Microsoft Windows compliance with the Australian ASD 1709 & Office 2016 Hardening Guides
### Network Devices
- [Nipper-ng](https://github.com/arpitn30/nipper-ng) - to check the configuration of network devices (does not seem to be updated)
### TLS/SSL
- [Qualys SSL Labs - List of tools to assess TLS/SSL servers and clients](https://github.com/ssllabs/research/wiki/Assessment-Tools)
- [SSL Decoder](https://ssldecoder.daniel-ruf.de/) - checks the SSL/TLS configuration of a server
### SSH
- [ssh-audit](https://github.com/arthepsy/ssh-audit) - SSH server auditing (banner, key exchange, encryption, mac, compression, compatibility, security, etc)
### Hardware - CPU - BIOS - UEFI
- [CHIPSEC: Platform Security Assessment Framework](https://github.com/chipsec/chipsec) - framework for analyzing the security of PC platforms including hardware, system firmware (BIOS/UEFI), and platform components
- [chipsec-check](https://github.com/ANSSI-FR/chipsec-check) - Tools to generate a Debian Linux distribution with chipsec to test hardware requirements
### Docker
- [Docker Bench for Security](https://github.com/docker/docker-bench-security) - script that checks for dozens of common best-practices around deploying Docker containers in production, inspired by the CIS Docker Community Edition Benchmark v1.1.0.
### Cloud
- [toniblyx/my-arsenal-of-aws-security-tools](https://github.com/toniblyx/my-arsenal-of-aws-security-tools) - List of open source tools for AWS security: defensive, offensive, auditing, DFIR, etc.
## Tools to apply security hardening
- [DevSec Hardening Framework](https://dev-sec.io/) - a framework to automate hardening of OS and applications, using Chef, Ansible and Puppet
### GNU/Linux
- [Linux Server Hardener](https://github.com/pratiktri/server_init_harden) - for Debian/Ubuntu (2019)
- [Bastille Linux](http://bastille-linux.sourceforge.net/) - outdated
### Windows
- [Microsoft Security Compliance Toolkit 1.0](https://docs.microsoft.com/en-us/windows/security/threat-protection/security-compliance-toolkit-10) - set of tools that allows enterprise security administrators to download, analyze, test, edit, and store Microsoft-recommended security configuration baselines for Windows and other Microsoft products
- [Hardentools](https://github.com/securitywithoutborders/hardentools) - for Windows individual users (not corporate environments) at risk, who might want an extra level of security at the price of some usability.
- [Windows 10 Hardening](https://github.com/aghorler/Windows-10-Hardening) - A collective resource of settings modifications (mostly opt-outs) that attempt to make Windows 10 as private and as secure as possible.
- [Disassembler0 Windows 10 Initial Setup Script](https://github.com/Disassembler0/Win10-Initial-Setup-Script) - PowerShell script for automation of routine tasks done after fresh installations of Windows 10 / Server 2016 / Server 2019
- [Automated-AD-Setup](https://github.com/OneLogicalMyth/Automated-AD-Setup) - A PowerShell script that aims to have a fully configured domain built in under 10 minutes, but also apply security configuration and hardening
- [mackwage/windows_hardening.cmd](https://gist.github.com/mackwage/08604751462126599d7e52f233490efe) - Script to perform some hardening of Windows 10
### TLS/SSL
- [Mozilla SSL Configuration Generator](https://ssl-config.mozilla.org/)
### Cloud
- [toniblyx/my-arsenal-of-aws-security-tools](https://github.com/toniblyx/my-arsenal-of-aws-security-tools) - List of open source tools for AWS security: defensive, offensive, auditing, DFIR, etc.
## Password Generators
- [How-To Geek - 10 Ways to Generate a Random Password from the Linux Command Line](https://www.howtogeek.com/howto/30184/10-ways-to-generate-a-random-password-from-the-command-line/)
- [Vitux - 8 Ways to Generate a Random Password on Linux Shell](https://vitux.com/generation-of-a-random-password-on-linux-shell/)
- [SS64 - Password security and a comparison of Password Generators](https://ss64.com/docs/security.html)
# Books
# Other Awesome Lists
(borrowed from [Awesome Security](https://github.com/sbilly/awesome-security))
## Other Awesome Security Lists
- [Awesome Security](https://github.com/sbilly/awesome-security) - A collection of awesome software, libraries, documents, books, resources and cools stuffs about security.
- [Android Security Awesome](https://github.com/ashishb/android-security-awesome) - A collection of android security related resources.
- [Awesome CTF](https://github.com/apsdehal/awesome-ctf) - A curated list of CTF frameworks, libraries, resources and software.
- [Awesome Cyber Skills](https://github.com/joe-shenouda/awesome-cyber-skills) - A curated list of hacking environments where you can train your cyber skills legally and safely.
- [Awesome Hacking](https://github.com/carpedm20/awesome-hacking) - A curated list of awesome Hacking tutorials, tools and resources.
- [Awesome Honeypots](https://github.com/paralax/awesome-honeypots) - An awesome list of honeypot resources.
- [Awesome Malware Analysis](https://github.com/rshipp/awesome-malware-analysis) - A curated list of awesome malware analysis tools and resources.
- [Awesome PCAP Tools](https://github.com/caesar0301/awesome-pcaptools) - A collection of tools developed by other researchers in the Computer Science area to process network traces.
- [Awesome Pentest](https://github.com/enaqx/awesome-pentest) - A collection of awesome penetration testing resources, tools and other shiny things.
- [Awesome Linux Containers](https://github.com/Friz-zy/awesome-linux-containers) - A curated list of awesome Linux Containers frameworks, libraries and software.
- [Awesome Incident Response](https://github.com/meirwah/awesome-incident-response) - A curated list of resources for incident response.
- [Awesome Web Hacking](https://github.com/infoslack/awesome-web-hacking) - This list is for anyone wishing to learn about web application security but do not have a starting point.
- [Awesome Threat Intelligence](https://github.com/hslatman/awesome-threat-intelligence) - A curated list of threat intelligence resources.
- [Awesome Pentest Cheat Sheets](https://github.com/coreb1t/awesome-pentest-cheat-sheets) - Collection of the cheat sheets useful for pentesting
- [Awesome Industrial Control System Security](https://github.com/mpesen/awesome-industrial-control-system-security) - A curated list of resources related to Industrial Control System (ICS) security.
- [Awesome YARA](https://github.com/InQuest/awesome-yara) - A curated list of awesome YARA rules, tools, and people.
- [Awesome Threat Detection and Hunting](https://github.com/0x4D31/awesome-threat-detection) - A curated list of awesome threat detection and hunting resources.
- [Awesome Container Security](https://github.com/kai5263499/container-security-awesome) - A curated list of awesome resources related to container building and runtime security
- [Awesome Crypto Papers](https://github.com/pFarb/awesome-crypto-papers) - A curated list of cryptography papers, articles, tutorials and howtos.
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