Suppose you have a long-running task (for example, compiling a large program) that you need to run, but you also want to get some other work done. Linux lets you start a task in the background and keep on doing other things from the command prompt. We will see in this article how to send […]
If you frequently use the terminals and the command line, I hope you know the command screen, otherwise get ready to see something that will help you immensely. Screen ? (from the man page) Screen is a full-screen window manager that multiplexes a physical terminal between several processes (typically interactive shells). Each virtual terminal provides […]
After ping, telnet and dig we continue to see other useful tools for network analysis done by the command line. Traceroute traceroute is a computer network tool used to show the route taken by packets across an Internet Protocol (IP) network. An IPv6 variant, traceroute6, is also widely available. The traceroute tool is available on […]
In two previous articles we saw two instruments that have as output of our analysis a graphic form (ntop and wireshark), but today we will see some tools you can use from the command line: Ping, telnet, dig, traceroute, whois, netstat, nmap, and mtr PING Ping is a computer network administration utility used to test […]
In this article I want to show some use, not trivial, of ssh, but first: What is SSH? From Wikipedia: Secure Shell or SSH is a network protocol that allows data to be exchanged using a secure channel between two networked devices. The two major versions of the protocol are referred to as SSH1 or SSH-1 and SSH2 or SSH-2. Used primarily on Linux […]