PostgreSQL
psqlAn agent with psql on its PATH can reach a database. Memnox wraps the binary, reads the command before it runs, and matches it against the table below. Nothing here is a list of what we support: it is what the runtime already classifies, and the strings are the ones a rule matches on.
What it reads to authenticate
Discovery records that these exist and hashes them. It never reads a value, so a scan can say three agents reach this file and never what is inside it.
What it changes
Allowed by default, and the obvious first thing to put behind ask.
psql -c **psql.c- statement is read from the argument
psql **psql.run- an interactive session can do anything
The rule this writes
[[rules]] name = "psql-destructive-asks-first" match.actions = ["psql.**"] decision.effect = "ask" decision.reason = "This cannot be undone."
memnox protect --for psql writes this into memnox.policies.toml from the table above. You can edit it, and the file is yours.
Run npm i -g memnox && memnox setup to find out whether PostgreSQL is actually reachable from your machine. It reads your own disk and needs no account.