Running a modern IT platform is rarely an easy nor isolated task. Most platforms consist of a fairly large number of components ranging from OS level to 3. party libraries and components added in the user interfacing layers - and adding numerous integrations does make it an interesting challenge to quickly identify and correct bugs and errors. While the system complexity does pose a challenge is surely not an impossible task, as several tools exists for most - if not all - platforms to allow instrumentation of the platform and utilize the instrumentation tools to handle the platform and identify issues quickly.
So I’ve installed a Raspberry Pi and it’s been running smoothly day in, day out. I’d like it to stay that way, but as the server is running it’s gathers lint in log files, databases grows and knowing how the load on CPU and memory is utilized through out time, I was looking for a tool which could help me to solve this problem. As fun as it might be to build your own solution, I’ve learned to appreciate ready to use solutions, and it seems a nice little tool is available called RPi-Monitor.
For some time the server running this site had been acting up. Page loads were slow, access through SSH seemed lagging and something was absolutely misbehaving. I’ve been trying to figure out what exactly was going on, but nothing really made sense. there were plenty of disk space, memory was reasonable utilized (no swapping) and the CPU load seemed to be less than 0.1 at any time - there were no good reason the server was “turtling” along at such a perceived slow pace.
Suppose you got an important mail, but by accident deleted the message – and to make matters worse, you also decided that emptying the mailbox was a pretty neat idea. Is then time to Panic? Well it might, but there is a chance you might be able to undelete the message – and quite easily if you’re on a Mac or a Linux machine. Here are the few steps, which has helped recover a lost mail or two… First close Thunderbird.
Sure it doesn’t happen that often, but sometimes you might need to change the IP number of your machine running Ubuntu. Either to configure it with a static IP number on your LAN or temporarily to configure a Wifi router - the latter being my case. The first shot at changing the ip number, was going to the “System” menu, choosing Administration and Network Tools. It sounded just about right - but it’s wrong.