OpenBSD Handbook

    • Part I. Install & Configure
      • Introduction
      • Installing OpenBSD
      • The X Window System
      • Networking
      • System Configuration
      • OpenBSD Basics
      • Managing Software: Packages and Ports
    • Part II. Daily Operations
      • Graphical Environments
      • Multimedia
      • Printing
      • Linux Compatibility
      • Windows Compatibility
      • Games
    • Part III. System Administration
      • Security
      • Virtualization
      • Storage and File Systems
      • Updating and Upgrading
      • Localization
      • The OpenBSD Boot Process
    • Part IV. Networking & Daemons
      • Services
        • Database
          • MariaDB
          • PostgreSQL
          • Redis
          • memcached
        • Directory
          • YP (NIS)
          • LDAP
        • File
          • NFS
          • Samba
        • FTP Services
          • ftpd
          • ProFTPD
          • vsftpd
          • TFTP
        • Mail
          • Dovecot
          • smtpd
          • Postfix
          • Exim
          • Rspamd
        • Name
          • Named
          • Unbound
          • NSD
        • Networking
          • OpenBGPD
          • rtadvd
          • DHCP
          • slaacd
        • Web
          • Apache
          • nginx
          • httpd
          • relayd
        • Logging
          • syslogd
        • Monitoring
          • SNMP
        • Remote Access
          • Audit OpenSSH
          • sshd
        • File Synchronization
          • rsync
        • Messaging
          • RabbitMQ
        • Time
          • NTP
      • PF
        • pfctl cheat sheet
        • PF Anchors
        • PF Filter Rules
        • PF Forwarding
        • PF Lists and Macros
        • PF Load Balancing
        • PF Logging
        • PF NAT
        • PF Options
        • PF Policies
        • PF Shortcuts
        • PF Tables
      • Advanced Networking
        • High Availability and State Replication
        • Multi-WAN and Policy-Based Routing
        • VPN and Cryptographic Tunneling
        • Classic and Lightweight Tunnels
        • IPv6 at Scale
        • QoS and Traffic Shaping
        • MPLS and Label Distribution
        • Network Services at Scale
        • Virtualization and Host Networking
        • Large-Scale L2 and L3 Design
        • Telemetry, Logging, and Flow Export
        • Hardening and Operational Safety
        • Reference Architectures
        • Troubleshooting Playbooks
      • Serial Communication
    • Part V. Miscellaneous
      • Virtualization Cheat Sheet
      • OpenBSD Cheatsheet
      • Howto
        • Install Z shell (zsh)
        • Set Up WordPress
        • Build a Simple Router and Firewall
      • OpenBSD for Linux Users
      • OpenBSD for FreeBSD Users
      • OpenBSD for macOS Users
    • Package Search
      Part III. System Administration

      Part III. System Administration

      Part III of the OpenBSD Handbook covers administrative responsibilities involved in managing an OpenBSD system. It addresses system startup, localization, security practices, storage management, upgrades, and virtualization.

      This section includes:

      • The OpenBSD Boot Process
        An overview of the system startup sequence, including the boot loader, kernel initialization, and multi-user mode.

      • Storage and File Systems
        Configuration and management of storage devices, disk partitioning, file systems, and related utilities.

      • Localization
        Configuring language, keyboard layouts, time zones, and locale-specific settings.

      • Security
        System hardening, privilege management, authentication methods, and security auditing.

      • Updating and Upgrading
        Procedures for applying patches, performing minor updates, and upgrading to new releases.

      • Virtualization
        Running OpenBSD as a host or guest using supported virtualization technologies.

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