How Install Netmask in Linux?

How do I find my netmask in Linux?

Ubuntu Linux

1. Launch the Terminal application.
2. Type “ifconfig” at the terminal prompt, then press the “Enter” key. The IP address is labeled as “inet addr.” The subnet is labeled as “Mask.”
3. Type “netstat -r” at the command prompt, then press the “Enter” key to view the gateway address.

How do I find my netmask?

1. In the Windows search fields, type cmd, to open command prompt.
2. Press Enter.
3. Type ipconfig/all press Enter.
4. Find your network settings.
5. Your PC’s IP address and your network Subnet Mask and Gateway will be listed.