You try to SSH into your Raspberry Pi but get the error: ssh: Could not resolve hostname raspberrypi: Name or service not known. What is the most likely cause?

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You try to SSH into your Raspberry Pi but get the error: ssh: Could not resolve hostname raspberrypi: Name or service not known. What is the most likely cause?

AWrong username used in SSH command

BSSH service is not running on the Raspberry Pi

CThe hostname 'raspberrypi' is not in your DNS or hosts file

DNetwork cable is unplugged from Raspberry Pi

Step-by-Step Solution

Solution:

Step 1: Analyze error message
Error says hostname cannot be resolved, meaning the name is unknown to your computer.
Step 2: Identify cause
This usually means the hostname is not in DNS or local hosts file.
Final Answer:
The hostname 'raspberrypi' is not in your DNS or hosts file -> Option C
Quick Check:
Hostname resolution error = missing DNS/hosts entry [OK]

Quick Trick: Hostname must be resolvable via DNS or hosts file [OK]

Common Mistakes:

Assuming SSH service stopped causes hostname error
Blaming wrong username for hostname resolution
Thinking physical cable unplugged causes hostname error

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You try to SSH into your Raspberry Pi but get the error: ssh: Could not resolve hostname raspberrypi: Name or service not known. What is the most likely cause?

Step 1: Analyze error message

Step 2: Identify cause

Final Answer:

Quick Check:

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