Linux Port Scanning
Check what services are running on the Linux system using port scanning utilities.
These commands are sometimes used to identify open TCP ports and related services:
# netstat -tulp
# lsof -iTCP -sTCP:LISTEN
# nmap -sTU
MongoDB stores documents in collections
Collections are analogous to tables in relational databases. If a collection does not exist, MongoDB creates the collection when you first store data for that collection.
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