SysAdminGear

This video shows you how to use PGP Desktop public key encryption technology. This program allows you to send securely encrypted emails and files.

Send securely encrypted emails and files with PGP Desktop Video:

HOWTO Secure Data with PGP

Securing your data with PGP

PGP - Pretty Good Privacy
GPG - GNU Privacy Guard

Common Encryption Methods are WPA WEP SSL, these videos will show you how to secure your data with PGP

Secure Your Data with PGP - Video Part 1


Secure Your Data with PGP - Video Part 2

This video tutorial will show how to use a bash script to install your own Counter Strike Server in Ubuntu Linux.

Setup CSS server in Ubuntu Linux Video:

This video will show you How to trace an IP or URL address to their starting location using Windows command functions.

How to trace an IP to their starting location video:

How to make a webserver using XAMPP Video
XAMPP is a easy to install program that you can use to turn your computer (running windows) into a web server (apache based). This video also shows to you a step to step installation guide for XAMPP

How to use FunFx (Ruby-based testing framework for Flex) video tutorial will show you how to use FunFX, a free, open-source, and Ruby-based automated testing framework for Adobe Flex applications. You can also learn with this video how to drive a Flex application through a web browser (video by rubyforge.org)

How to fix slow internet internet connection on Ubuntu 7.1

Open console

Run the next commands:

# sudo gedit /etc/modprobe.d/aliases

Comment the next line:
"alias net-pf-10 ipv6"

Save and exit

This is a small video from "The Screen Savers" showing some tips using atp-get commands on debian.


Linux Tips - Click here for more amazing videos

This video will show you how to run an operating system (Linux for example, dos, windows etc.) under Windows. You can of course run Windows Vista under your current system instead of Linux. Virtual system makes it good to test diffirent operating systems safely and easily.

How to - Run Linux Under Windows Video:

Run Linux Under WIndows Tutorial - Watch a funny movie here

This videos teachs a simple way to protect important files within their linux server, you can hidden directories.

Linux Hidden Directories Video:

Prevent Hackers Using Linux Hidden Directories - The top video clips of the week are here

How to create new linux partition video

HP-UX installation on Hewlett-Packard zx2000 Intel Itanium video.

How to run Android under windows mobile (Beta).

This video show you how to run android under windows mobile. Please note that this is a beta version so it can crash. This is a initial experimentation :)

In this video Cousin Rich runs Ubuntu on his MacBook with 1 gig of RAM.

Your NFS server is crashing? You have no problems when is reading but it cant write?

NFS was optimized and the only thing was updated Red Hat kernel v5.2 and CentOS 5.2 64 bit edition.

To fix this problem you should updated kernel packages. It will fix various security problems and bugs.

a 50-75% drop in NFS server rewrite performance, compared to Red Hat Enterprise Linux 4.6, has been resolved.

Build an embedded Linux distro from scratch tutorial

In this tutorial, you learn about cross-compiling, the boot loader, file systems, the root file system, disk images, and the boot process, all with respect to the decisions you make as you're building the system and creating the distribution.

Build an embedded Linux distro from scratch tutorial:
- Discussion of cross-compilation issues
- Review of the components of a Linux system and how they are put together
- Detailed steps for building, installing, and configuring the target system

Build an embedded Linux distro from scratch tutorial Objectives:
This tutorial shows you how to install Linux on a target system. Not a prebuilt Linux distribution, but your own, built from scratch. While the details of the procedure necessarily vary from one target to another, the same general principles apply. The result of this tutorial (if you have a suitable target) is a functional Linux system you can get a shell prompt on.

This tutorial assumes that your shell is a Bourne shell derivative; if you use a C shell derivative, the prompt will probably look different, and you will need to use different commands to set environment variables.

->Register now or sign in using your IBM ID and password.

(source: http://www.ibm.com/developerworks/linux/edu/l-dw-linux-embedded-distro-i.html)

Postfix MTA updated to fix security vulnerabilities.

- Incorrectly checks of the ownership of a mailbox is now fixed. It will increase some security. If you run postfix on your server, you should upgrade to these updated packages.

Patch Postfix under Debian / Ubuntu Linux:
1 - Update the internal database:
# apt-get update
2 - Install corrected Postfix package
# apt-get upgrade


Patch Postfix under RHEL / CentOS Linux:
For RHEL and CentOS 5:
# yum update

Under RHL5:
# up2date -u

This post will probably help you to fix an error occurring when you try to upgrade some package like this:

rpmdb: unable to join the environment
error: db4 error(11) from dbenv->open: Resource temporarily unavailable
error: cannot open Packages index using db3 - Resource temporarily unavailable (11)
error: cannot open Packages database in /var/lib/rpm
warning: /root/webmin-1.360-1.noarch.rpm: V3 DSA signature: NOKEY, key ID 11f63c51
rpmdb: unable to join the environment
error: db4 error(11) from dbenv->open: Resource temporarily unavailable
error: cannot open Packages database in /var/lib/rpm
rpmdb: unable to join the environment
error: db4 error(11) from dbenv->open: Resource temporarily unavailable
error: cannot open Packages database in /var/lib/rpm

How To Fix:

Remove Old Lock Files running this command:
# rm -f /var/lib/rpm/__db*

Now you have to rebuild RPM database:
# rpm -vv --rebuilddb

It should be fine now, if you want you can read more information at: http://www.rpm.org/hintskinks/repairdb/

Android is a software stack for mobile devices that includes an operating system, middleware and key applications. This early look at the Android SDK provides the tools and APIs necessary to begin developing applications on the Android platform using the Java programming language.

Android Features:
- Application framework enabling reuse and replacement of components
- Dalvik virtual machine optimized for mobile devices
- Integrated browser based on the open source WebKit engine
- Optimized graphics powered by a custom 2D graphics library; 3D graphics based on the OpenGL ES 1.0 specification (hardware acceleration optional)
- SQLite for structured data storage
- Media support for common audio, video, and still image formats (MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, GIF)
- GSM Telephony (hardware dependent)
- Bluetooth, EDGE, 3G, and WiFi (hardware dependent)
- Camera, GPS, compass, and accelerometer (hardware dependent)
- Rich development environment including a device emulator, tools for debugging, memory and performance profiling, and a plugin for the Eclipse IDE

Source: http://code.google.com/android/what-is-android.html

Android Presentation Video #1


Android Presentation Video #2


Google Android Explained


"Google's open platform could benefit the wireless industry, but the 3G issue may slow adoption. Also, while more than 30 industry heavyweights are partnering with Google, Apple will not be participating." ( http://www.youtube.com/watch?v=lWJ9xW4Wm-k )