The ports tree, ZFS, jails, pf, and the internals of a Unix built for correctness.
How HAST replication modes, role changes, fencing, and CTL iSCSI targets fit together without confusing replication with failover.
How to enable FreeBSD BSM auditing, select useful event classes, protect trail storage, rotate safely, filter records, and verify capture.
How to inspect ZFS boot-environment coverage, create and verify a bectl rollback point, activate it safely, and reclaim space afterward.
How to adapt a FreeBSD program for Capsicum by pre-opening resources, limiting descriptor rights, entering capability mode, and testing denial.
How to configure modern FreeBSD CARP on two hosts, control election and preemption, test failover, synchronize PF state, and monitor HA.
A production-safe FreeBSD DTrace workflow for loading providers, narrowing probes, aggregating syscalls and stacks, and controlling tracing overhead.
A current iocage workflow for selecting a supported FreeBSD release, creating a ZFS-backed jail, managing networking, updates, snapshots, and removal.
How to build and verify multiple FreeBSD routing tables, assign services and jails to FIBs, use PF policy routing, and distinguish them from MPTCP.
How to design a resilient FreeBSD ZFS NAS, configure a supported Samba package, align identities and permissions, and verify backup and client access.
A secure FreeBSD pkg repository workflow covering package provenance, offline signing, atomic publication, HTTPS serving, client trust, and rollback.