Fredric News

Tag: Security

  • dnsmasq Lightweight DNS & DHCP Server Setup

    💡 dnsmasq Lightweight DNS & DHCP Server Setup — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for dnsmasq Lightweight DNS & DHCP Server Setup. Mac: Local DNS settings References and Guidelines (NOTE) If used like this, /etc/hosts may not be touched Setup bash Copy brew install dnsmasq Restart after setting local…

  • OPNsense Unbound DNS: Ad-blocking

    💡 OPNsense Unbound DNS: Ad-blocking — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for OPNsense Unbound DNS: Ad-blocking. References and Guidelines (NOTE) System Required: DNS Port forwarding Private domain registration References and Guidelines (NOTE) List instructing to allow the response even if the DNS query result includes a private IP address…

  • OPNsense Firewall XML Config Automated Git

    💡 OPNsense Firewall XML Config Automated Git — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for OPNsense Firewall XML Config Automated Git. 🔗 https://docs.opnsense.org/manual/git-backup.html Step0. Preparation (Github) Create SSH Keypair bash Copy mkdir opnsense ssh-keygen -f ~/opnsense/opnsense # 공개키 클립보드에 복사 cat ~/opnsense/opnsense.pub | pbcopy # 개인키 클립보드에 복사 cat ~/opnsense/opnsense…

  • Enterprise Cloud Mgmt Platform (CMP)

    💡 Enterprise Cloud Mgmt Platform (CMP) — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Enterprise Cloud Mgmt Platform (CMP). TLS Sample Show Get certificate information from specific TLS port bash Copy ip= port= openssl s_client -connect ${ip}:${port} -showcerts Main References and Guidelines (NOTE) Even if the CA certificate expires, the…

  • Advanced TypeScript Types: Generics, Unions

    💡 Advanced TypeScript Types: Generics, Unions — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Advanced TypeScript Types: Generics, Unions. Utility Type TypeScript’s **Utility Types** are powerful tools that help you transform already defined types or easily create new types. Frequently used utility types include Partial, Readonly, Pick, and Omit. Below…

  • Network Subnet Masking & CIDR Notation

    💡 Network Subnet Masking & CIDR Notation — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Network Subnet Masking & CIDR Notation. References and Guidelines (NOTE) CIDR (Classless Inter-Domain Routing) and subnet mask are similar concepts, but they are not exactly the same thing. Subnet Mask is a 32-bit (IPv4) or…

  • OPNsense Internal CA & WebGUI SSL/TLS

    💡 OPNsense Internal CA & WebGUI SSL/TLS — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for OPNsense Internal CA & WebGUI SSL/TLS.

  • HashiCorp Vault Security: Transit Engine

    💡 HashiCorp Vault Security: Transit Engine — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for HashiCorp Vault Security: Transit Engine. Installation Operation Authentication Management Policy registration bash Copy k exec -it -n portal-system sts/vault — sh ### START IN CONTAINER vault login policy_name=admin-policy cat > /tmp/${policy_name}.hcl <<EOF path “*” { capabilities…

  • Stubby DNS Daemon: DNS-over-TLS (DoT) Client

    💡 Stubby DNS Daemon: DNS-over-TLS (DoT) Client — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Stubby DNS Daemon: DNS-over-TLS (DoT) Client. 📑 Table of Contents Architecture Installation Exec Features Architecture Architecture & System Flow Diagram SVG 100% Pan & Zoom Installation Mac bash Copy brew install stubby jq yq Exec…

  • OPNsense Dynamic DNS (DDNS) with Cloudflare

    💡 OPNsense Dynamic DNS (DDNS) with Cloudflare — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for OPNsense Dynamic DNS (DDNS) with Cloudflare.