Categories: Operating Systems OpenBSD
Kernel, Base System, configuration, networking, security, and services work together in OpenBSD. These fundamentals show how these components interact from installation to the running system.
Categories: Fundamentals OpenBSD
OpenBSD as an integrated operating system: Base System, development model, correctness, proactive security, portability, hardware, and documentation.
Categories: Fundamentals OpenBSD
Install OpenBSD 7.9: verify the installation image, understand bsd.rd, configure networking and users, structure disks, select sets, and patch the Base System after the first boot.
Categories: Fundamentals OpenBSD
OpenBSD systems are configured through text files. hostname.if controls network interfaces, ntpd synchronizes time, doas provides delegated root privileges, and sysctl adjusts kernel parameters.
Categories: Fundamentals Package Management
OpenBSD manages the base system and packages separately. pkg_add installs software from signed repositories, pkg_delete removes packages, and pkg_info displays package information. Updates with pkg_add -u, binary patches with syspatch. For 7.8 and 7.9.
Categories: Fundamentals Security
OpenBSD implements security through privilege separation, pledge(), unveil(), W^X memory protection, and proactive code audits. Securelevels restrict root privileges, and LibreSSL replaces OpenSSL.
Categories: Fundamentals Operating Systems OpenBSD
OpenBSD routing with ospfd, the dhcpd DHCP server, IPv6 configuration, and network troubleshooting. A practical guide to stable and secure networking.