You want to secure your Raspberry Pi by allowing SSH access only from a specific IP address 192.168.1.100 and blocking all other SSH attempts. Which ufw commands achieve this?

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Raspberry Pi - Security and Deployment

You want to secure your Raspberry Pi by allowing SSH access only from a specific IP address 192.168.1.100 and blocking all other SSH attempts. Which ufw commands achieve this?

Asudo ufw allow from any to any port 22 sudo ufw deny from 192.168.1.100

Bsudo ufw allow from 192.168.1.100 to any port 22 sudo ufw deny 22

Csudo ufw deny ssh sudo ufw allow 22

Dsudo ufw allow ssh sudo ufw deny from 192.168.1.100 to any port 22

Step-by-Step Solution

Solution:

Step 1: Allow SSH only from the specific IP
Use sudo ufw allow from 192.168.1.100 to any port 22 to permit SSH from that IP.
Step 2: Deny all other SSH connections
Use sudo ufw deny 22 to block SSH from all other IPs.
Final Answer:
sudo ufw allow from 192.168.1.100 to any port 22 sudo ufw deny 22 -> Option B
Quick Check:
Allow specific IP then deny all others = sudo ufw allow from 192.168.1.100 to any port 22 sudo ufw deny 22 [OK]

Quick Trick: Allow specific IP first, then deny all others [OK]

Common Mistakes:

MISTAKES

Allowing SSH globally before denying specific IP
Denying the allowed IP instead of others
Using wrong port numbers or commands

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You want to secure your Raspberry Pi by allowing SSH access only from a specific IP address 192.168.1.100 and blocking all other SSH attempts. Which ufw commands achieve this?

Step 1: Allow SSH only from the specific IP

Step 2: Deny all other SSH connections

Final Answer:

Quick Check:

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