Collecting Server Software Versions

You manage several servers running Linux distributions. Each server’s installation may be different, due to operation purpose or due to error. How do you know which ones need attention? Need upgrades? Make your servers tell you their installed software lists. Each list shows what is installed, but comparing lists from several servers is not easy because … Read more

Better Pseudorandom Numbers

Pseudorandom number generators (PRNGs) assist simulations by giving different values tied to choices a person might make. True randomness cannot happen with deterministic software. Following in the footsteps of Donald Knuth (or directly), using the term “random” here to discuss deterministic values is easier, even if less precise than “pseudorandom”. Present a large enough set of … Read more