https://www.jpsdomain.org/tags/free/index.html Hugo en-us https://www.jpsdomain.org/linux/edutainment/index.html Mon, 01 Jan 0001 00:00:00 +0000 https://www.jpsdomain.org/linux/edutainment/index.html Free Edutainment Software Introduction This is a list of free entertaining yet educational software for your kids and computer, and is intended for a general (read non-computer-geek) audience I start in 2008. Most of these programs are available for the three most common operating systems, Windows, Max OS X and GNU/Linux (e.g., Ubuntu, Debian). Everything listed here is at least available for Ubuntu, and much of it is “built-in.” For Ubuntu/Debian, install these via “add/remove programs” or via “sudo apt-get install <package name(s) here>” from the command line (e.g.: sudo apt-get install stellarium stellarium-data). https://www.jpsdomain.org/networking/ipcalc/index.html Mon, 01 Jan 0001 00:00:00 +0000 https://www.jpsdomain.org/networking/ipcalc/index.html Old Content This content is old! It’s still useful, but it’s old, and there may be bit rot, newer/better tools or ways to do things. Sanity check and do your research. Classfull, CIDR Web-based calculators. 3CIPCalc IP Subnet mask calculator from 3Com. ipsubcal.zip Simple IP Subnet mask calculator. Does not need to be installed, just unzip and run. ipcalc.zip v1.02 Net3 Group’s IP Subnet mask calculator. Does not need to be installed, just unzip and run.