Linux CLI - Networking Commands
Which of the following is the correct syntax to list all listening TCP and UDP ports using
ss?Which of the following is the correct syntax to list all listening TCP and UDP ports using ss?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Understand option meanings
The options-tulnmean TCP (-t), UDP (-u), Listening (-l), Numeric (-n).Step 2: Match options to goal
To list listening TCP and UDP ports,ss -tulnis the correct syntax.Final Answer:
ss -tuln -> Option AQuick Check:
Listening TCP/UDP = ss -tuln [OK]
Quick Trick: Use -tuln with ss to see listening TCP/UDP ports [OK]
Common Mistakes:
- Using -a shows all but not filtered to listening
- Assuming --listening is a valid option
- Using -x which is for Unix sockets, not TCP/UDP
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