chage tips — authorized password-aging literacy

Last updated: · By the BinBench editorial team · Stars and releases checked via the GitHub API
Quick answer

chage helps authorized labs sample password-aging literacy on hosts they own. Pair with pwck-tips, faillock-tips, id-tips, lastb-tips, whoami-tips. Prefer lab VMs — never alter aging on foreign accounts without permission.

Snapshot

FieldValue
Surfacechage tip checklist
JobAuthorized password-aging literacy
pwck peerpwck-tips
faillock peerfaillock-tips
id peerid-tips
lastb peerlastb-tips

Tip checklist (authorized only)

  1. Confirm you may inspect aging Evidence on the host (lab VM / syllabus box you own or were given access to).
  2. Prefer list (-l) first — never change production aging without change control and ticket notes.
  3. Record short factual notes; quote short Evidence (last change, min/max days, expiry — redact usernames).
  4. Optional: integrity → pwck-tips.
  5. Optional: PAM tallies → faillock-tips.
  6. Optional: identity → id-tips.
  7. Redact usernames and hostnames if policy requires.
  8. Stop at literacy — no exploit / unauthorized aging-bypass cookbooks.

Allowed framing

  • Classroom labs reading aging fields on authorized disposable hosts.
  • Binding short factual notes as Evidence.
  • Documenting expected vs observed max-days policies for authorized inventory notes.
  • Comparing chage ↔ pwck / faillock / id peer tip pages under one binder.
  • Adjusting lab-only aging when the syllabus explicitly authorizes a policy drill.

Scope we will not cover

  • No crack/pirate/keygen via chage.
  • No intentional lockout / aging-DoS PoCs against foreign accounts.
  • No credential-theft via aging metadata against hosts you do not own.
  • No bypass cookbooks that set never-expire on privileged accounts without authorization.

Beginner path (authorized only)

  1. Obtain one syllabus-approved lab host you control or may inspect.
  2. Run a short read-only chage -l <labuser> sample; quote success.
  3. Bind notes as Evidence; redact usernames.
  4. Optional: compare with pwck-tips / faillock-tips.
  5. Stop at literacy — no attack or unauthorized aging-edit cookbooks.

Practical notes for authorized labs

  • -l is the binder-friendly default; write modes need clear authorization.
  • Aging lives in shadow — treat output as sensitive even without hashes.
  • Pair with lastb-tips when expired accounts show failed logins in drills.
  • Document policy numbers (min/max/warn) rather than pasting full account dumps.
  • Label lab policy changes clearly so they are not mistaken for production hardening claims.
Which to pick
  • Prefer authorized, redacted, list-first Evidence.
  • Use pwck / faillock / id peer tip pages when the syllabus asks.
  • No exploit, crack, or unauthorized-access framing.

For legal, authorized and educational use only.

FAQ

What is a "chage tip" page in BinBench framing?

A checklist for reading authorized password-aging Evidence on hosts you own or were given syllabus access to — not a cookbook for changing aging on foreign accounts.

How does this relate to pwck-tips / faillock-tips?

Those pages cover passwd/shadow integrity and PAM lockout tallies. This page zooms on a general chage tip checklist — it does not overwrite those pages.

Can I change aging on hosts I do not own?

No. Authorization first. BinBench will not publish unauthorized aging changes against foreign accounts.

Does this teach exploit / bypass PoCs via chage?

No. Mentions of exploit/bypass appear only as refusals. Authorized literacy only — prefer lab VMs and redacted samples.

Does this teach credential theft via chage?

No. chage shows aging dates, not passwords — still redact usernames before sharing excerpts.

Sources