A collection of awesome security hardening guides, best practices, tools and other resources.
This is work in progress: please contribute by 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
- [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)
- [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/)
- [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
- [NSA - Harden Network Devices](https://apps.nsa.gov/iaarchive/library/ia-guidance/security-tips/harden-network-devices.cfm) - very short but good summary
- [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)
- [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/)
- [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
- [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)
- [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)
- ["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/)
- [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)
- [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
- [How To Encrypt OpenLDAP Connections Using STARTTLS](https://www.digitalocean.com/community/tutorials/how-to-encrypt-openldap-connections-using-starttls)
- [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)
- [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.
- [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.
- [Hardening Auditor](https://github.com/cottinghamd/HardeningAuditor) - Scripts for comparing Microsoft Windows compliance with the ASD 1709 & Office 2016 Hardening Guides
- [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
(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.
