In a former article I’ve talked about script, to record a shell session from a terminal and a comment contained “ttyrec > script”
So what’s ttryrec ?
Jul 082011
Jul 072011
dd seem an unfriendly command, but if you start to use it, you’ll see that it’s a powerful command able to do many different things, backup a partition, CD or USB stick for example or do some simple tests on the speed of your disks or your CPU.
The man page say:
dd is an application that will “convert and copy a file”
But let’s see some trick with it.
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Jul 042011
Today Ram disk has saved (at least temporary) one more customer, this time we have moved his Lucene index files from a local disk to /dev/shm; I’m not so sure this is the real solution but at least this gave us better performance and some time to study his application, to see if and where there are bottlenecks.
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Jul 022011
Do you want to test how your new site work under an heavy load ?
Put it under siege !
Siege is an http load testing and benchmarking utility. It was designed to let web developers measure their code under duress, to see how it will stand up to load on the internet. Siege supports basic authentication, cookies, HTTP and HTTPS protocols. It lets its user hit a web server with a configurable number of simulated web browsers. Those browsers place the server “under siege.”
Jun 302011
Untangle it’s a software appliance (based on Debian) that can help you in managing your network from content security to web caching, remote access to policy enforcement, all from one simple, drag & drop command center.
Untangle is a privately held company that provides an open source network gateway for small businesses. They offer the core modules (12) as GPL software and others at payment, the cost depend on number of “client” and which modules you want to install, to start (or for home use) the Lite Package (free to download and use) is enough.
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