After running ssh -L 2222:localhost:22 user@remotehost, you receive the error: "bind: Address already in use". What is the most probable reason?

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Linux CLI - SSH and Remote Access

After running ssh -L 2222:localhost:22 user@remotehost, you receive the error: "bind: Address already in use". What is the most probable reason?

ARemote SSH server is not running

BLocal port 2222 is already occupied by another process

CIncorrect username specified

DFirewall on remotehost blocks port 22

Step-by-Step Solution

Solution:

Step 1: Analyze the error message
"bind: Address already in use" indicates the local port is busy.
Step 2: Identify the port in use
Port 2222 on the local machine is likely occupied by another application.
Step 3: Confirm other options
Remote SSH server status, username, or firewall issues do not cause local bind errors.
Final Answer:
Local port 2222 is already occupied by another process -> Option B
Quick Check:
Local port conflict causes bind error [OK]

Quick Trick: Bind errors usually mean local port is busy [OK]

Common Mistakes:

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