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702-100 BSD Specialist: FreeBSD, NetBSD, and OpenBSD Administration

702-100 is the current Linux Professional Institute BSD Specialist exam, version 1.0. LPI positions the certification within its Open Technology program and describes it as practical administration across FreeBSD, NetBSD, and OpenBSD. There is no prerequisite certification, but the expected candidate is comfortable with Unix command-line work, installation, software management, storage, users, processes, networking, and security across all three BSD families.

The cross-BSD scope is what makes the exam distinctive. A command or file name may exist on more than one system yet behave differently, and some administrative tools are specific to one family. Candidates therefore need a shared Unix mental model plus enough platform-specific detail to avoid assuming that a FreeBSD procedure applies unchanged to OpenBSD or NetBSD.

Although the credential comes from LPI, it is not an LPIC Linux exam. Linux experience can help with shells, permissions, networking, and general administration, but preparation must respect BSD architecture, installation tools, package systems, startup mechanisms, storage conventions, and security features on their own terms.

Install and upgrade each BSD rather than learning one system as a proxy for all three

The objectives explicitly cover installing FreeBSD, NetBSD, and OpenBSD and upgrading existing installations. Candidates should know the major installer and update tools, how to determine the running OS and version, and how disk layout or system sets differ. The lesson is comparative administration: the same outcome is achieved through different native mechanisms.

Create one small VM for each BSD if resources allow. Install with mostly default choices, record the disk layout, identify the release, perform a routine update, and compare the configuration files touched during the process. Keeping a three-column lab notebook is effective because it reinforces similarities without erasing important differences.

Software management reflects each project’s packaging philosophy

Source trees and base-system updates should also be kept conceptually separate from third-party packages. BSD projects differ in how the operating system and add-on software are maintained, and administrators need to know which mechanism owns which files. This distinction matters during upgrades and troubleshooting: replacing a package does not necessarily update the base system, and a base-system tool should not be assumed to manage every installed application.

Package installation and source-based software management differ among the BSDs. Candidates should know the common concepts of repositories, package databases, updates, queries, and removal while recognizing platform-specific commands. FreeBSD ports, pkgsrc, and OpenBSD packages should not be collapsed into “the BSD package manager.”

Install the same category of utility on all three systems and compare how the package is found, installed, queried, and removed. Then identify where repository configuration lives. This exercise teaches the operational differences quickly and creates a reference you can revisit when similar command names begin to blur together.

Storage administration combines partitions, labels, filesystems, and mount policy

BSD systems have their own disk-labeling and partitioning traditions, and the exam expects candidates to manage filesystems and persistent mounts. Understand device naming, filesystem creation and checking, swap, labels, mount options, and the configuration that controls startup mounts. The candidate should be able to move from a physical or virtual disk to a usable filesystem without guessing which tool belongs to which BSD.

Use extra virtual disks so experiments are safe. Partition, create a filesystem, mount it, make the mount persistent, and then remove the configuration cleanly. Compare the commands and device names across systems. This is one area where prior LPIC-1 experience provides conceptual help, but BSD-specific procedures must still be learned directly.

Boot and service management reveal different operating-system design choices

Kernel and hardware information provide another useful comparison point. Learn how each BSD exposes boot messages, loaded modules or drivers, devices, and system information. When hardware is not detected, work from the boot process and device attachment rather than jumping directly to an application configuration. This mirrors professional troubleshooting and reduces the temptation to use Linux-specific diagnostic paths on a BSD host.

BSD startup systems are not systemd clones. Candidates need to understand boot configuration, kernel or loader parameters where relevant, rc-style startup, service control, and the files used to enable daemons. The exact mechanism differs by system, which is why hands-on comparison is more effective than importing Linux assumptions.

Choose a harmless service on each BSD, enable it persistently, start and stop it, inspect its status, and find its logs. Reboot to confirm the intended startup behavior. Then disable it and verify the system returns to the expected state. This simple workflow exposes the native administration model of each platform.

User, group, and privilege administration should be practiced with local policy

The exam covers account creation, group membership, password and login settings, privilege escalation, and related configuration. Unix fundamentals such as UIDs, GIDs, ownership, and mode bits carry across platforms, but account-management utilities and security defaults can differ. Candidates should know how to identify the authoritative local files and tools for each BSD.

Create nonprivileged users, a shared group, and a controlled administrative workflow. Test access to files before and after changing group membership, and inspect how login restrictions or shells affect behavior. Keep the focus on effective access rather than on memorizing one command line, because troubleshooting depends on understanding the resulting account state.

Processes and scheduled work require command-line fluency

BSD administrators need to inspect processes, signals, priorities, jobs, resource use, and scheduled tasks. Standard Unix tools provide a familiar base, but flags and output formats can differ from GNU/Linux versions. The exam therefore rewards candidates who have actually used the systems and can recognize BSD command behavior rather than assuming GNU options are universal.

Run a long-lived test process, move work between foreground and background, adjust priority, send signals, and inspect parent-child relationships. Create a scheduled task and verify it executes with the intended environment. These small exercises also train the habit of checking a command’s native manual page instead of relying on memory from another Unix-like operating system.

Networking combines shared TCP/IP concepts with platform-specific configuration

Packet filtering is another area where platform identity matters. FreeBSD, OpenBSD, and NetBSD do not present one universal firewall administration experience, even though they share familiar TCP/IP concepts. Learn which firewall framework and configuration conventions belong to the system named in the objective, and test a minimal allow/deny policy in a lab. The objective is accurate administration, not forcing every BSD into a Linux-shaped mental model.

Interfaces, addresses, routes, DNS, DHCP, and common network diagnostics are universal concepts, but configuration files and control commands differ. Candidates should be able to configure basic client networking, inspect routes, resolve names, and identify listening services on FreeBSD, NetBSD, and OpenBSD.

Trace connectivity in layers: interface state, address, route, name resolution, transport reachability, and application response. Perform the same diagnostic on each BSD and record which commands are identical and which are not. This makes the common network model stable while preserving the syntax differences that the exam can test.

Security features are part of normal BSD administration rather than optional extras

Patch and release discipline belongs in security study as well. BSD projects publish advisories and update mechanisms with their own expectations, so an administrator should know the installed release and how to apply supported fixes. A secure configuration on an unsupported or unpatched release is not a complete security posture. Tie platform lifecycle awareness to every lab instead of studying hardening as a one-time configuration exercise.

Each BSD project has a strong security culture, but the mechanisms and defaults differ. Candidates should understand permissions, secure remote access, basic firewall concepts, system updates, and platform-specific hardening features at the level defined by the objectives. OpenBSD, for example, is not simply “the secure BSD”; its tools and design choices still need to be learned concretely.

Build a minimal exposed service and document what is listening, which account runs it, what files it can access, and how traffic is filtered. Apply the platform’s native controls rather than copying a Linux hardening guide. The adjacent Open Source Essentials 050-100 material can help with open-source ecosystem context, but BSD Specialist preparation must remain operational and platform-specific.

Shell skills transfer, but GNU-specific habits must be challenged deliberately. Candidates coming from Linux often have strong shell habits that are mostly useful, yet subtle differences in utilities can cause mistakes. Options for ps, sed, date, networking tools, and filesystem commands may differ. The right response is not to unlearn Unix skills but to verify assumptions against the BSD manual pages and use portable constructs when possible.

Review foundational shell and permission concepts from Linux Essentials 010-160 only as a conceptual bridge. Then repeat each important task on the BSD systems themselves. If your notes say “this command always supports option X,” test it. The exam rewards accurate cross-platform administration, not confidence built from a different userland.

A comparative lab is the most efficient way to prepare for a three-system exam

Add a “manual-page differences” column to the lab notebook for commands that look familiar. Record changed flags, output formats, default file locations, and behavior that surprised you. Those details are exactly where experienced Linux users can make avoidable mistakes. Over time the notebook becomes a compact cross-BSD reference built from verified behavior rather than from assumptions about what Unix commands “usually” do.

Organize study by task rather than by operating system. For installation, software, storage, users, processes, networking, and security, maintain a table with FreeBSD, NetBSD, and OpenBSD columns. This reveals which concepts are shared and where the implementation diverges. It also prevents spending three weeks on one platform and then trying to memorize the others at the end.

The final review should start from LPI’s current 702-100 objectives and verify every command or file against the system named in that objective. There is no need to force links to unrelated Linux or cloud material simply because the concepts sound familiar. BSD Specialist is intentionally narrow, and a focused cross-BSD lab is more valuable than a larger but less accurate study collection.

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