OneLinersCommand workbench
Guides
Operational guides

Complete procedures with a way back.

Searchable, versioned procedures with prerequisites, verification, concrete output, and rollback.

Guides
243
Favorites
0
243 launch guides · 2601 reviewed steps
2 of 243 guides

Security · Services & Applications

Configure Exim TLS and authenticated message submission

Install a trusted certificate, separate port 587 policy, require encryption before AUTH, integrate an authenticator, rate-limit abuse, and test relay boundaries.
Save to collectionCreate a collection in the sidebar first.
caution90 minadvanced8 stepsExim

Security · Services & Applications

Configure Postfix TLS and authenticated submission on port 587

Add a dedicated submission service, require STARTTLS and SASL, integrate Dovecot authentication, constrain relaying and abuse, and test safe failure modes.
Save to collectionCreate a collection in the sidebar first.
caution90 minadvanced8 stepsPostfix