gcloud reference
https://cloud.google.com/sdk/gcloud/reference
https://cloud.google.com/sdk

Google script
https://developers.google.com/apps-script/reference/

Microsoft Documentation
https://learn.microsoft.com/en-us/docs/

PowerShell module reference
https://learn.microsoft.com/en-us/powershell/module/

Code test HTML/CSS/JS : https://codepen.io/

Mail tester
https://www.mail-tester.com/faq
https://gmail.com/postmaster/

https://www.dkim.org/
https://mxtoolbox.com/

Tools for troubleshooting
Microsoft Teams Network Assessment Tool: Call Quality Dashboard (For Admins):
Wireshark pktmon (Network Monitor)

Spam filter
spamassasin :
mimecast : https://www.mimecast.com/
mailcleaner : https://www.mailcleaner.org/home/
mailscanner : https://www.mailscanner.info/

Public Blackhole Lists (DNSBLs):
Spamhaus Block List (SBL): (https://www.spamhaus.org/blocklists/spamhaus-blocklist/) A well-known DNSBL maintained by Spamhaus, a non-profit organization focused on email security.
SURBL (Spam URI Relay Block List): (https://www.surbl.org/) A DNSBL that identifies relays known to be sources of spam.
XBL Exploits Block List: (https://www.spamhaus.org/blocklists/exploits-blocklist/) A list of IPs associated with known exploit kits and malware.
DNSBL.info: (https://www.dnsbl.info/) A comprehensive resource with information on various DNSBLs.

Load testing
JMeter K6

OIDC (Open ID connect)
Azure :
Google :
Auth0 :
OKTA :
AWS cognito :

Facebook:
Apple:
Keycloak: An open-source OIDC provider that gives you more control over the implementation. Requires technical expertise to set up and manage.
Ping Identity: A well-established provider offering a robust OIDC solution with strong security features.

2FA solutions DUO :
Google Authenticator: time-based one-time passwords (TOTP)
Microsoft Authenticator: TOTP codes for secure logins. Authy: This free app by Twilio offers similar functionality to Google and Microsoft Authenticator, but with additional features like multi-device support.

Hardware Security Keys: YubiKey: SMS-based Authentication: Biometric Authentication:

ICANN lookup :
https://lookup.icann.org/en/lookup

Domain statistics
https://domainnamestat.com/

Docker compose samples :
https://github.com/docker/awesome-compose
https://github.com/dockersamples

Find my public IP :
https://ident.me/
https://whatismyipaddress.com/

Cheatsheets
markdown : https://github.com/lifeparticle/Markdown-Cheatsheet
kubectl : https://kubernetes.io/docs/reference/kubectl/quick-reference/
git : https://education.github.com/git-cheat-sheet-education.pdf
docker : https://docs.docker.com/get-started/docker_cheatsheet.pdf

Reference
markdown : https://www.markdownguide.org/basic-syntax/
kubectl : https://kubernetes.io/docs/reference/kubectl/generated/ https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands
git : https://git-scm.com/docs
docker : https://docs.docker.com/reference/
web : https://developer.mozilla.org/en-US/docs/Web
various languages : https://www.w3schools.com/
regex : https://regexr.com/ https://regex101.com/ https://www.debuggex.com/ https://www.regular-expressions.info/

Diagram as Code tools
https://mermaid.js.org/
https://graphviz.org/
https://diagrams.mingrammer.com/
https://structurizr.com/
https://plantuml.com/

Command line file copy tools
https://rclone.org/ rsync

Homelab software

Docker Image Registry
Docker registry : https://hub.docker.com/_/registry
Harbor registry : https://goharbor.io/

Git version control
GitLab : https://about.gitlab.com/install/
Gitea : https://docs.gitea.com/category/installation

Peer-to-peer VPN
ZeroTier : https://docs.zerotier.com/
Tailscale : https://tailscale.com/kb/1347/installation

VPN
WireGuard : https://www.wireguard.com/
SoftEther VPN : https://www.softether.org/4-docs/1-manual/7._Installing_SoftEther_VPN_Server
OpenVPN : https://openvpn.net/community-resources/installing-openvpn/

DNS
Pi-hole : https://docs.pi-hole.net/
AdGuard Home : https://adguard.com/en/adguard-home/overview.html
dnsmasq : https://github.com/jpillora/docker-dnsmasq
Unbound : https://nlnetlabs.nl/projects/unbound/about/

URL shortener
shlink : https://shlink.io/
kutt.it : https://kutt.it/
yourls : https://yourls.org/
polr : https://github.com/ajanvier/docker-polr

Reverse Porxy
traefik : https://doc.traefik.io/traefik/getting-started/quick-start/
pound : https://github.com/graygnuorg/pound
nginx : https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/

Firewall
OPNsense : https://opnsense.org/about/about-opnsense/
pfsense : https://www.pfsense.org/
IPFire : https://www.ipfire.org/
ClearOS :
VyOS :

Tunnel forwarding
Ngrok : https://ngrok.com/
Localtunnel : https://theboroer.github.io/localtunnel-www/
Pagekite : http://pagekite.net/
Localhost.run : https://localhost.run/
Cloudflare Tunnel (Free) : https://www.cloudflare.com/en-gb/products/tunnel/

Web framework
Flask :
Django :
Lavavel :
Node.js :
Vue.js (frontend) :
React.js (frontend) :
FastAPI :

Notification gateway
Apprise : https://github.com/caronc/apprise
Mailrise (on top of Apprise) : https://github.com/YoRyan/mailrise

IPS
fail2ban : https://github.com/fail2ban/fail2ban
crowdsec security engine : https://docs.crowdsec.net/docs/next/intro

SIEM
ELK stack :
wazuh : https://documentation.wazuh.com/current/index.html

Security list
National Institute of Standards and Technology (NIST) National Vulnerability Database (NVD): https://nvd.nist.gov/
Open Web Application Security Project (OWASP) Top 10: https://owasp.org/www-project-top-ten/
SANS Institute Internet Storm Center (ISC): https://isc.sans.edu/

National Institute of Standards and Technology (NIST) Special Publication 800-161:
This comprehensive guide by NIST outlines a structured approach to OPSEC implementation. It provides a framework for identifying critical information, assessing threats, and developing controls. https://csrc.nist.gov/pubs/sp/800/161/r1/final

Center for Internet Security (CIS) Controls:
The CIS Controls framework provides a prioritized set of best practices for cyber defense. Many of these controls directly relate to OPSEC principles like access control, boundary defense, and configuration management. https://www.cisecurity.org/controls

Monitoring
Prometheus : https://prometheus.io/docs/prometheus/latest/installation/
ELK stack :

Configuration management
Ansible : https://docs.ansible.com/
Puppet : https://www.puppet.com/support/training

IaC
Ansible : https://docs.ansible.com/
Terraform :

CI
Jenkins :

CD
Argo CD :
Jenkins :

Home Automation
Frigate : https://frigate.video/
Home Assistant : https://www.home-assistant.io/docs/

AI code generation
tabnine : https://www.tabnine.com/install/vs-code/ https://docs.tabnine.com/main/welcome/readme/supported-languages