Archive for the 'Gentoo Linux' Category
- lftp to accelerate ftp / http download speed under Linux and UNIX
lftp is a file transfer program that allows sophisticated ftp, http and other connections to other hosts. If site is specified then lftp will connect to that site otherwise a connection has to be established with the open command. This is an essential tool for all a Linux admin. I’ve [...]
- Linux / UNIX: display time of different time zones using TZ environment variable
Let us say you need to display time for different zones or cities. Sure you can use The World Clock - Time Zones located here. If you need a different time zone at a shell prompt or script use old good date command.
Different timezones can be displayed by changing the TZ environment variable.
TZ [...] - How do I test if my Linux server SCSI / SATA hard disk going bad?
One of our regular sends us a question:
How can I test if my hard disk is going bad? I see few errors in /var/log/messages file.
I/O errors in /var/log/messages indicates that something is wrong with the hard disk and it may be failing.
Next thing is check hard disk for error using smartctl command, which is control [...] - Shell du command tip - estimate file space usage and exclude particular files
The du command estimate file space usage and summarize disk usage of each FILE, recursively for directories.
It displays the file system block usage for each file argument and for each directory in the file hierarchy rooted in each direc tory argument. If no file is specified it will use current directory.
But why use du [...] - Howto: Connect MySQL server using C program API under Linux or UNIX
From my mailbag:
How do I write a C program to connect MySQL database server?
MySQL database does support C program API just like PHP or perl.
The C API code is distributed with MySQL. It is included in the mysqlclient library and allows C programs to access a database.
Many of the clients in the MySQL source distribution [...] - Howto enable mandatory profile settings with pessulus to lock down the GNOME Linux desktop
pessulus is a lockdown editor for GNOME, written in python.
pessulus enables administrators to set mandatory settings in GConf. The users can not change these settings. This is an excellent software something like Microsoft profile manager.
Use of pessulus can be useful on computers that are open to use by everyone, e.g. in an internet cafe. [...] - Howto collect Linux system utilization data into a file
I’ve already documented the procedure to find out CPU utilization under Linux and UNIX oses using various tools.
However I received a couple of email questions via email:
Howdo I collect Linux system utilization data into a file? How do I email the data or move to another computer?
To be frank you don’t have to do anything [...] - Shell tip: Clear the command history and screen when you log out
For security reason you may want to clear the history file and the screen when you hit CTRL+D or type logout command as you don’t want to left content on screen (i..e avoid an information leak). Some Linux distro may clear the screen but others do not clear the screen when you logout.
When a login [...] - Howto use multiple SSH keys for password less login
A step by step guide on setting up multiple SSH keys for password less login.
- Howto save power on Linux Laptop computers - tips and howtos from Intel
Intel has created a new website dedicated to saving power with Linux on Intel hardware. From the site:
Getting your computer to use the least amount of power can be problematic. This site provides information on reducing power usage, tips, and tricks for Intel-based computers running Linux.
You can download use PowerTOP, which is a Linux [...]
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