GPEN · Question #468
Where are Netcat's own network activity messages, such as when a connection occurs, sent?
The correct answer is A. Standard Error. Netcat deliberately routes its own status and connection messages to stderr so that stdout remains clean for piping or redirecting actual network payload data.
Question
Where are Netcat's own network activity messages, such as when a connection occurs, sent?
Options
- AStandard Error
- BStandard input
- CStandard Logfile
- DStandard Output
How the community answered
(52 responses)- A75% (39)
- B4% (2)
- C8% (4)
- D13% (7)
Why each option
Netcat deliberately routes its own status and connection messages to stderr so that stdout remains clean for piping or redirecting actual network payload data.
Netcat sends its own operational messages - such as connection notifications and listening status - to standard error (stderr), which keeps stdout carrying only the raw network data so it can be piped, redirected to a file, or chained to another tool without mixing in Netcat's own diagnostic output.
Standard input (stdin) is where Netcat reads data that it will transmit over the network connection, not where it sends its own status messages.
Netcat has no built-in logging subsystem and does not write to a file called a 'Standard Logfile' by default - this is not a real standard I/O stream.
Standard output (stdout) carries the actual network data that Netcat receives from the remote host, not Netcat's own operational or connection status messages.
Concept tested: Netcat stderr vs stdout message routing
Source: https://man.openbsd.org/nc.1
Topics
Community Discussion
No community discussion yet for this question.