Linux memory management

I think that is a common question for every Linux user soon or later in their career of desktop or server administrator “Why Linux uses all my Ram while not doing much ?”. To this one today I’ve add another question that I’m sure is common for many Linux system administrator “Why the command free [...]

Monitor your bandwidth from the Linux shell

Monitoring how much bandwidth is used is a fundamental task to check the status of your servers, or just your desktop, so i always test new tools to see if i find something good. This is the third article of this series and in this one i’ll take a look at Bmon, speedometer and Nload.

How to make dmesg timestamp human readable

After the update to Ubuntu 11.10 my wireless goes up and down, and so i’m trying to debug this problem looking into dmesg. But this brought me to another small issue, dmesg prints timestamps in the form of seconds.nanoseconds since the system booted. And no, there seems to be no -h option to make it [...]

Windows entry disappeared in Grub2 menu

I’ve finally terminated my upgrade to Xubuntu 11.10, with the usual small problems, nothing really too bad. But now, when i boot I don’t see anymore the “Windows” entry in the boot menu made with grub2, I’ve installed os-prober that should help in will find additional entries on the hard disks and add them to [...]

Top 8 worst suggestions on Linux

This is my personal Top 8 of worst suggestions I’ve read, took or gave to other Linux users so far, feel free to add your as comment. Legend: Q: Question, BA: The bad answer, GA : What could have been a good answer 1) Q: I have a file i can’t read/write/execute with the user [...]