network address

I‘m new to networking and need help with network settings. I’m looking for a tool for calculating available host address ranges with CIDR using Linux command prompt. How do I use subnet calculator under Linux or UNIX?


Q. Under Linux I can use Ethtool and mii-tool, but they are not available under FreeBSD. How do I tell the port speed of the nic under FreeBSD operating system?


Q.What is a routing table? Can you explain its usage under Linux / UNIX operating system?


Q. How do I find out subnet mask on UNIX operating system? Can you tell us the name of command and configuration file to store subnetmask under UNIX? A. A subnetwork/ subnet is a range of logical addresses within the address space that is assigned to an organization. Subnetting is a hierarchical partitioning of the […]

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Q. I would like to create alias for my network card (NIC). How do I setup 2 IP address on One NIC? How do I add alias under Centos / Fedora / Debian / Ubuntu Linux?