While creating a script to send an email alert when a linux accounts password is about to expire, we needed to determine the number of days remaining before expiry. A quick search of Google surprisingly returned only methods that access /etc/shadow, which is not possible for standard users. However, we did manage to come up with a solution.
Around 14 years ago, I switched from using Reflection to PuTTY because it was free and my employer at the time wouldn’t pay for such extravagance software purchases such as a simple terminal emulator! Since then I’ve become rather accustomed to the way PuTTY behaves, and find Reflections particularly annoying to use on the occasion that I visit a client who insists on using it. However, it is possible to solve most of the biggest annoyances…
The unix command scp is very useful for transferring files between two hosts over a secure connection, but sometimes you need to kick off an scp command that will take several hours to complete and you want to disconnect and go home. Using "screen" One approach is to use the screen command (available only on linux AFAIK) to start the initial transfer, then... Continue Reading →
Filesystem in Userspace (FUSE) is a loadable kernel module for Unix-like computer operating systems that lets non-privileged users create their own file systems without editing kernel code. This is achieved by running file system code in user space while the FUSE module provides only a "bridge" to the actual kernel interfaces. It is a pre-requisite... Continue Reading →
If you need to determine the configured speeds of the network adapters on your linux server, the ethtool command provides the answer. You can find the speed of all your ethernet adapters with a simple unix script.