I wrote an article for a friends site, check it out: Guide To Easy Logins With SSH On Linux
I didn’t know that article writing took so long — the amount of writing, rewriting, critiquing, etc etc was a new experience. I’ll have to keep writing articles — teaching others is a good way to [...]
Posted on February 23rd, 2009 by Phil Dufault
Filed under: BASH, CentOS, Gentoo, Linux, Redhat, Shell, Ubuntu, Uncategorized, sh | 2 Comments »
Usually on Linux server, we have issues with logging the commands that our users are running, especially with BASH. BASH doesn’t log the commands as soon as they’re executed, and the user can do a number of simple things to prevent the log from ever being written to the disk, preventing you from knowing [...]
Posted on February 16th, 2009 by Phil Dufault
Filed under: BASH, CentOS, Gentoo, Linux, Redhat, Shell, Ubuntu, sh | 4 Comments »
There seems to be not a lot of information on Google about this, thus, I post.
At my work, the majority of our servers have hot-swappable drive bays — however, Linux doesn’t usually automatically notice the drive is gone. Worse, sometimes it doesn’t even notice new drives hooked up.
Now, SCSI and SAS both support hot-plugging [...]
Posted on August 4th, 2008 by Phil Dufault
Filed under: CentOS, Gentoo, Linux, Redhat, Ubuntu | 9 Comments »
I find it shocking how many people don’t know about this neat Linux key combination that let’s you execute various low level commands regardless of the system’s state (as long as it’s running and hasn’t panicked.)
From the Wikipedia page:
It is often used to recover from freezes, or to reboot a computer without corrupting the filesystem.
How [...]
Posted on July 19th, 2008 by Phil Dufault
Filed under: CentOS, Gentoo, Linux, Redhat, Ubuntu | 1 Comment »
This might sound strange, as people usually want to fix or prevent these from happening, I’m trying to test/ create a method of logging kernel panic messages to a remote logging server. All of the existing tutorials I found on the net were for Linux 2.4, or were incomplete.
My method involves creating a Linux [...]
Posted on July 17th, 2008 by Phil Dufault
Filed under: CentOS, Gentoo, Linux, Redhat, Ubuntu | No Comments »
Run this awesome command as root:
dd if=/dev/mem bs=32768 skip=31 count=1 | strings -n 10 | grep -i bios
Also, you can use dmidecode, but this can vary on motherboards what the search string is. On my machine right now:
phil@phil:~$ sudo dmidecode -s bios-version
ASUS M2NPV-VM ACPI BIOS Revision 1103
Posted on June 15th, 2008 by Phil Dufault
Filed under: Gentoo, Linux, Ubuntu | 5 Comments »
I’ve written a script that dumps the audio and video from an mkv file, encodes the audio into a two channel AAC stream, and remuxes the audio/video into a MP4 wrapper so it’s playable on the Xbox 360. The script is Linux-only, obviously, written in bash using mplayer, normalize-audio, mencoder, MP4Box, mkvinfo, and mkvextract [...]
Posted on March 11th, 2008 by Phil Dufault
Filed under: Gentoo, Linux, Ubuntu | 44 Comments »