FreeBSD security guides
34 guides about security software and administration.
Browse securitypackages →Best Security Tools for FreeBSD
Compare the best security tools for FreeBSD: vulnerability scanning, IDS/IPS, file integrity, antivirus, and auditing. Suricata, ClamAV, Nmap, AIDE, rkhunter, and more.
2026-04-09Suricata vs Snort: IDS/IPS Comparison on FreeBSD
Compare Suricata and Snort IDS/IPS on FreeBSD: multi-threading, rule compatibility, performance, logging, FreeBSD integration, and which to choose for intrusion detection.
2026-04-09FreeBSD User and Permission Management Guide
Complete guide to FreeBSD user and permission management: users, groups, ACLs, login classes, capabilities, MAC framework, file flags, and chflags.
2026-04-09OPNsense and pfSense in 2026: FreeBSD Firewall Ecosystem
Complete comparison of OPNsense and pfSense in 2026. Release updates, new features, community health, market position, and guidance on choosing between them.
2026-04-09ClamAV on FreeBSD: Open Source Antivirus Review
Review of ClamAV on FreeBSD: installation, freshclam updates, clamd daemon, mail server integration, on-access scanning, and performance impact.
2026-04-09FreeBSD Firewall Guide: PF and IPFW Complete Reference (2026)
Complete FreeBSD firewall reference covering both PF and IPFW: syntax, rules, NAT, port forwarding, tables, traffic shaping, logging, failover with CARP, and production rulesets. Side-by-side comparison with real configs.
2026-04-09FreeBSD Security Handbook: Hardening and Best Practices (2026)
Complete FreeBSD security guide: SSH hardening, PF firewall, MAC framework, audit subsystem, jail isolation, disk encryption, securelevel, sysctl tunables, automatic updates, and incident response. Production-tested practices.
2026-04-09IPFW on FreeBSD: Firewall Review
In-depth review of IPFW on FreeBSD: rule syntax, stateful filtering, dummynet traffic shaping, NAT, in-kernel processing, and comparison with PF and IPFilter.
2026-04-09How to Configure IPFW Firewall on FreeBSD
Complete guide to configuring IPFW firewall on FreeBSD: enabling IPFW, rule syntax, stateful filtering, NAT with natd and in-kernel NAT, dummynet traffic shaping, and logging.
2026-04-09Nmap on FreeBSD: Network Scanner Review
Review of Nmap on FreeBSD: host discovery, port scanning, service detection, OS fingerprinting, NSE scripts, and practical security audit workflows.
2026-04-09OpenSSH on FreeBSD: Secure Shell Review
In-depth review of OpenSSH on FreeBSD: base system integration, configuration hardening, certificates, jump hosts, agent forwarding, FIDO2 keys, and security best practices.
2026-04-09How to Set Up OPNsense on FreeBSD Bare Metal
Complete guide to installing OPNsense on bare metal: hardware selection, installation, WAN/LAN configuration, firewall rules, VPN setup, plugins, and update management.
2026-04-09OPNsense on FreeBSD: Firewall Distribution Review
Review of OPNsense on FreeBSD: plugin system, IDS/IPS with Suricata, VPN options, REST API, web interface, and comparison with pfSense.
2026-04-09PF Firewall on FreeBSD: The Complete Review
Complete review of PF firewall on FreeBSD: architecture, rule syntax, tables, anchors, NAT, rate limiting, pflog analysis, and comparison with IPFW and Linux nftables.
2026-04-09pfSense CE on FreeBSD: Firewall Distribution Review
Review of pfSense CE on FreeBSD: hardware requirements, package system, VPN options, traffic shaping, high availability, and comparison with OPNsense.
2026-04-09Suricata on FreeBSD: IDS/IPS Review
Review of Suricata on FreeBSD: intrusion detection and prevention, rule management, inline mode with PF/IPFW, performance on FreeBSD, and comparison with Snort.
2026-04-09HashiCorp Vault on FreeBSD: Secrets Management Review
In-depth review of HashiCorp Vault on FreeBSD: installation, dev and production modes, secrets engines, authentication methods, PKI certificate management, and policy configuration.
2026-04-09Wazuh Agent on FreeBSD: Security Monitoring Review
In-depth review of Wazuh agent on FreeBSD: SIEM overview, agent installation, file integrity monitoring, log analysis, rootcheck, vulnerability detection, and comparison with OSSEC.
2026-04-09Best VPN Software for FreeBSD in 2026
Compare the best VPN solutions for FreeBSD: WireGuard, OpenVPN, IPsec/strongSwan, and Tailscale. Covers performance, configuration complexity, security, and use case recommendations.
2026-03-29How to Set Up a FreeBSD Router and Gateway
Complete guide to building a FreeBSD router and gateway. Covers IP forwarding, NAT with PF, DHCP, DNS, QoS, multi-WAN, VPN, and monitoring.
2026-03-29How to Configure NAT on FreeBSD with PF
Complete guide to NAT configuration on FreeBSD using PF firewall. Covers source NAT, port forwarding (rdr), 1:1 NAT (binat), NAT pools, logging, and troubleshooting.
2026-03-29How to Set Up OpenVPN on FreeBSD
Step-by-step guide to setting up OpenVPN on FreeBSD. Covers installation, EasyRSA PKI, server and client configuration, routing, TLS hardening, and troubleshooting.
2026-03-29How to Set Up a FreeBSD Mail Server with Postfix and Dovecot
Complete guide to building a mail server on FreeBSD with Postfix, Dovecot, and Rspamd. Covers installation, TLS, DKIM/SPF/DMARC, virtual domains, spam filtering, and Roundcube webmail.
2026-03-29How to Set Up WireGuard VPN on FreeBSD
Step-by-step guide to setting up WireGuard VPN on FreeBSD. Covers kernel module installation, key generation, server and client configuration, PF firewall rules, and troubleshooting.
2026-03-29WireGuard vs OpenVPN on FreeBSD: VPN Comparison
Head-to-head comparison of WireGuard and OpenVPN on FreeBSD. Covers performance, security, configuration complexity, use cases, mobile support, and recommendations.
2026-03-29Best Firewall Solutions for FreeBSD in 2026
Compare the best firewall solutions for FreeBSD: PF, IPFW, OPNsense, and pfSense. Covers features, performance, configuration, NAT, QoS, logging, and when to use each.
2026-03-29How to Set Up Fail2ban on FreeBSD
Step-by-step guide to setting up Fail2ban on FreeBSD with PF integration. Covers installation, SSH jail, custom filters, action configuration, whitelisting, and monitoring.
2026-03-29How to Harden a FreeBSD Server: Complete Security Checklist
Step-by-step FreeBSD server hardening checklist. Covers SSH hardening, PF firewall, sysctl security tunables, file permissions, audit framework, automatic updates, and more.
2026-03-29How to Set Up Let's Encrypt SSL on FreeBSD with Certbot
Step-by-step guide to setting up free SSL/TLS certificates on FreeBSD with Let's Encrypt and Certbot. Covers NGINX plugin, Apache plugin, standalone mode, wildcard certs, auto-renewal, and troubleshooting.
2026-03-29pfSense vs OPNsense: Which Firewall Should You Pick in 2026?
OPNsense wins for most users in 2026 -- better UI, faster updates, fully open-source. pfSense still leads for Netgate hardware and support contracts. Full comparison inside.
2026-03-29How to Set Up PF Firewall on FreeBSD
Step-by-step guide to configuring PF firewall on FreeBSD. Covers pf.conf syntax, basic rules, NAT, port forwarding, tables, anchors, rate limiting, logging, and troubleshooting.
2026-03-29PF vs IPFW: FreeBSD Firewall Comparison
Head-to-head comparison of PF and IPFW firewalls on FreeBSD. Covers syntax, features, NAT, QoS, logging, performance, and when to use each.
2026-03-29How to Secure SSH on FreeBSD: Complete Guide
Complete guide to securing SSH on FreeBSD. Covers sshd_config hardening, key-only authentication, certificate auth, jump hosts, port knocking, fail2ban, and advanced SSH security techniques.
2026-03-29FreeBSD vs OpenBSD: Security-Focused Comparison
In-depth comparison of FreeBSD and OpenBSD. Covers security philosophy, package ecosystems, hardware support, performance, networking, use cases, and when to choose each BSD.
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