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Mod 5 · Les 3/5
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Module 5•Lesson 3 of 5•⏱️ 15 min read•Beginner+40 XP

Policy Design

Policy groups literacy — map users, devices, apps to segmentation labels — policy group table on YOUR $ZT_LAB network folder.

Policy Design
00:00/02:42

Visual · t40_policy_groups

Policy groups. $ZT_LAB. Original Cyberlium.

Segments need identities — policy groups bind IdP groups and device tags to microseg rules on LAB-ZT-001.

Policy groups (App-Finance, Role-Engineering, Device-Compliant, Env-Prod literacy) drive segmentation rules dynamically. Change group membership → access path updates without IP churn. Table: Group name | Members source | Segments allowed | Linked CA policy — fictional. Next: Microseg Lab.

1. Policy group types (named)

User/group from IdP. Device compliance tag from MDM. App classification label. Environment (prod/dev) label.

Combine labels for compound rules — engineering + compliant device → dev segment.

Command guide

Try these commands — Policy group types (named)

═══ LINUX / macOS (Terminal Practice) ═══

Check system state and user context

Command — copy this

id
whoami
uname -a

Inspect network sockets listening for connections

Command — copy this

ss -tuln 2>/dev/null || netstat -tuln

Audit active processes

Command — copy this

ps aux | grep -v "\[" | head -15

═══ WINDOWS (POWERSHELL) ═══ Query user identity and system information

Command — copy this

whoami /all
Get-ComputerInfo | Select-Object CsName, OsName, OsVersion

Primary tools to practice this lesson: grep, python3. Reference sites: NIST SP 800-207 (https://csrc.nist.gov/publications/detail/sp/800-207/final); CISA ZTMM Networks (https://www.cisa.gov/zero-trust-maturity-model). Run every command in the box — install first, then the usage lines — only on YOUR lab / program scope.

2. Link to identity and device pillars

CA-002 admin group maps to Admin-Segment policy group. Non-compliant device tag → quarantine segment literacy.

Cross-reference M3 and M4 packs in table footnotes.

3. Lab table

Eight fictional policy groups with segment mapping for LAB-ZT-001.

Ship: policy group table. Next: Microseg Lab.

4. What you ship: policy group table

Eight groups mapped to segments and IdP/MDM sources. $ZT_LAB. chmod 600.

5. What you record before the next lesson

Date. Policy groups. $ZT_LAB named. File t40-m05-l03-policy-groups.txt chmod 600.

6. Wrong vs right: bypass cookbooks vs YOUR ZT design

Worked failure — same MSF word, opposite target. Right never needs a café Wi-Fi or classmate laptop.

  • Wrong: Use real employee names in group table. Static IP ACLs only — ignore identity labels.
  • Right: Write policy group table linking IdP and device tags to segments. Next: Microseg Lab.
Hands-on Exercise

Mission: policy group table

1) Define eight fictional policy groups. 2) Map each to allowed segments. 3) Link two groups to M3 CA policies. 4) chmod 600.

Pro Tip

Stuck? Ask Cyberlium AI Mentor

Dynamic groups beat static VLAN ACLs when workforce is hybrid.

Practice QuizQuestion 1
Multiple choice
Q1

APPLY: Policy groups connect:

Practice QuizQuestion 2
True or False
Q2

APPLY: True or False: IdP group changes can update segment access.

Practice QuizQuestion 3
Multiple choice
Q3

APPLY: Policy group table uses:

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