id user tips — authorized UID/GID literacy

Last updated: · By the BinBench editorial team · Stars and releases checked via the GitHub API
For legal, authorized and educational use only. Only analyze software you own or have written permission to examine.
Quick answer

id helps authorized labs sample UID/GID identity on hosts they own. Pair with groups-tips, uname-tips, and env-vars-tips.

On this page

Snapshot

FieldValue
Surfaceid tip checklist
JobAuthorized UID/GID literacy
groups peergroups-tips
uname peeruname-tips
env peerenv-vars-tips

Tip checklist (authorized only)

  1. Confirm you may read identity on the host (lab VM / your sample / courseware).
  2. Prefer id / id -un / id -gn short queries over dumping /etc/passwd wholesale.
  3. Record flags and (if any) username you actually queried — only accounts you may inspect.
  4. Quote short Evidence; redact if policy requires.
  5. If you need group membership lists, cross-check groups-tips.
  6. Optional: kernel/host → uname-tips / hostnamectl-tips.
  7. Optional: env context → env-vars-tips; keep a copy → tee-pipe-tips.
  8. Redact sensitive labels before sharing.

Allowed framing

  • Classroom labs recording your own UID/GID on a syllabus VM.
  • Binding -un / -gn / -G settings as Evidence.
  • Documenting "id not installed / no such user" as valid lab outcomes.
  • Comparing id ↔ groups under one binder.

Scope we will not cover

  • No crack/pirate/keygen via id.
  • No privilege-escalation / unauthorized-access / bypass PoCs.
  • No credential-theft via account enumeration cookbooks.
  • No intentional id abuse against hosts you do not own.

Beginner path (authorized only)

  1. Obtain one syllabus-approved lab VM you control.
  2. Run id -un and id -gn; quote both.
  3. Bind notes as Evidence; redact if needed.
  4. Optional: compare with groups-tips.
  5. Stop at literacy — no escalation cookbooks.
Which to pick
  • Prefer authorized, short, redacted Evidence.
  • Use groups / uname / env peers when the syllabus asks.
  • No exploit, crack, or unauthorized-access framing.

For legal, authorized and educational use only.

FAQ

What is an "id user tip" page in BinBench framing?

A checklist for reading authorized UID/GID identity on hosts you own — not a cookbook for enumerating other users without permission.

How does this relate to groups-tips?

groups-tips covers group membership lists. This page zooms on id UID/GID Evidence — it does not overwrite that page.

Can I id-scan other users\' accounts I do not administer?

No. Authorization first. BinBench will not publish unauthorized-access recipes.

Does this teach exploit / privilege-escalation PoCs?

No. Mentions of exploit appear only as refusals. Authorized identity literacy only.

Does this teach credential theft via account dumps?

No. Redact usernames/UIDs if policy requires before sharing.

Sources