The Ubuntu developers are moving quickly to bring you the absolute latest and greatest software the Open Source community has to offer. The Maverick Meerkat Beta is the beta release of Ubuntu 10.10, bringing with it new features for the next version of Ubuntu.

This is a beta release. Do not install it on production machines. The final stable version will be released on October 10, 2010.

This screenshots gallery includes new installer,applications and more

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A compilation of the best solutions provided to common PHP questions.

The PHP Anthology will save you time, and eliminate the frustration of completing PHP tasks, with a comprehensive collection of ready-to-use solutions. If you’re building web applications with PHP you’ll never let this book out of your site!

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This tutorial will details the relocation of the device logs directory on the NSM server. This procedure is normally used in cases where the NSM Server has limited disk space and a network file system is available and mounted on the NSM server just for writing device logs.
Note:The device server uses /usr/netscreen/DevSvr/var/logs for writing all the device logs.

The assumption is that the /data directory on the NSM server is mounted to a NAS file system.

1. Login to the NSM Server via SSH as root user.

2. Stop all the NSM service processes (and in case of HA, stop it on both the NSM servers).

3. Rename the current logs directory as follows:

mv /usr/netscreen/DevSvr/var/logs /usr/netscreen/DevSvr/var/logs_bak

4. Become nsm user and create a soft link for the logs directory to point to /data directory as follows:

su nsm -
cd /usr/netscreen/DevSvr/var
ln -s /data logs

5. Make sure  the user nsm can write files under /data directory.

6. When the “ls -l” command is performed under /usr/netscreen/DevSvr/var, it should look as below for the soft link :

lrwxrwxrwx   1 nsm  nsm     14June  7 11:07 logs -> /data

7. Now copy all the old device logs to /data or /usr/netscreen/DevSvr/var/logs:

cd /usr/netscreen/DevSvr/var/logs_bak
cp -rpf * /usr/netscreen/DevSvr/var/logs/.

8. Once the copy is complete, verify that all files have nsm ownership.

9. Now start all the NSM processes. Login to the GUI client to make sure logs are visible and new logs are showing up.

10. Perform the same procedure on the secondary NSM server as well.

11. Once it is confirmed that servers are showing new and old logs,  then delete the old logs directory “/usr/netscreen/DevSvr/var/logs_bak” on both NSM Servers.

12. Start processes on the secondary server in case of HA.

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This tutorial will explain how to start and stop NSM services in proper order
In a stand-alone NSM configuration:

The proper startup order is:

1. Start Gui Server

/etc/init.d/guiSvr start

2. Start Device Server

/etc/init.d/devSvr start

3. Start HA Server

/etc/init.d/haSvr start

The proper stop order is:

1. Stop HA Server

/etc/init.d/haSvr stop

2. Stop Device Server

/etc/init.d/devSvr stop

3. Stop Gui Server

/etc/init.d/guiSvr stop

For NSM HA configuration users

If you are using in a high-availability NSM configuration use the following commands

The proper startup order is

Start HA Server

/etc/init.d/haSvr start

The proper stop order is:

Stop HA Server

/etc/init.d/haSvr stop

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This VeriSign guide will demystify the technology involved and give you all the information you need to make the best decision when considering your online security options.

Whether you’re an individual or a company, you should approach online security in the same way that you would approach physical security for your home or business. Not only does it make you feel safer, but it also protects people who visit your home, place of business or website.

It is important to understand the potential risks and then to make sure you are fully protected against them. With security technologies and online risks changing everyday, it is not always easy to stay abreast of the latest advancements.

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Learn how F5 solutions can help make your cloud infrastructure or deployment more secure, reliable, and resilient.

Cloud computing has become another key resource for IT deployments, but there is still fear of securing applications and data in the cloud. With F5 devices, you can keep your most precious assets safe, no matter where they live.

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Vulnerabilities in web applications are now the largest vector of enterprise security attacks.

Stories about exploits that compromise sensitive data frequently mention culprits such as “cross-site scripting,” “SQL injection,” and “buffer overflow.” Vulnerabilities like these fall often outside the traditional expertise of network security managers.

To help you understand how to minimize these risks, Qualys provides this guide as a primer to web application security. The guide covers:

* typical web application vulnerabilities
* comparison of options for web application vulnerability detection
* QualysGuard Web Application Scanning solution

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Disaster Recovery (DR) is a critical component of IT and risk mitigation strategies, and compounded in difficulty by ever growing data volumes, distributed computing, and new technologies.

How can you get creative in protecting more data, recovering more swiftly, but also saving some money? Download this essential ESG white paper to learn about how WAN optimization can be a key enabling technology in accelerating DR and accelerating savings, too.

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An in-depth exploration of the art of shell scripting.This is really usefull shell Scripting tutorial guide for all users.

This guide assumes no previous knowledge of scripting or programming, but progresses rapidly toward an intermediate/advanced level of instruction . . . all the while sneaking in little nuggets of UNIX® wisdom and lore. It serves as a textbook, a manual for self-study, and a reference and source of knowledge on shell scripting techniques. The exercises and heavily-commented examples invite active reader participation, under the premise that the only way to really learn scripting is to write scripts. This book is also suitable for classroom use as a general introduction to programming concepts.

The Advanced Bash Scripting Guide is both a reference and a tutorial on shell scripting. This comprehensive book (the equivalent of 974 print pages) covers almost every aspect of shell scripting. It contains 364 profusely commented illustrative examples, a number of tables, and a cross-linked index/glossary. Not just a shell scripting tutorial, this book also provides an introduction to basic programming techniques, such as sorting and recursion. It is well suited for either individual study or classroom use. It covers Bash, up to and including version 4.0.

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• Download The GNU/Linux Advanced Administration PDF Guide (0)

A comprehensive collection of Linux security products and explanations in the most simple and structured manner on how to safely and easily configure and run many popular Linux-based applications and services.

This book is intended for a technical audience and system administrators who manage Linux servers, but it also includes material for home users and others. It discusses how to install and setup a Linux server with all the necessary security and optimization for a high performance Linux specific machine. It can also be applied with some minor changes to other Linux variants without difficulty.

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Slackware Linux Essentials is an indispensible resource that you will want to have by your side at all times. It contains the most complete and up-to-date information available on the Slackware Linux Operating System. A must-have reference guide you have been waiting for, it delivers everything you need to get started with Slackware Linux, including straightforward explanations of important programs and step-by-step instructions to guide you through the Slackware installation process. You too can become an expert on this powerful OS by reading about its history and capabilities.

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Enhance regulatory compliance and troubleshooting through detailed auditing, logging and real-time monitoring of UNIX/Linux user activity.

This white paper examines the compelling business and technical case for centralized UNIX/Linux auditing, describes how DirectAudit’s integrated architecture enables you to meet regulatory requirements and protect against insider threats, and describes how DirectAudit can help you better troubleshoot UNIX/Linux availability problems.

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As businesses of every size are seeking to lower power and cooling costs, simplify administration, and conserve data center floor space, they are rapidly virtualizing their physical infrastructures.

As a result, demand is greater than ever for server hardware capable of handling virtualization workloads with maximum efficiency. Read this white paper for a discussion on the unique requirements that virtualization imposes on host hardware, as well as how the next-generation server line can help companies with virtualized data centers achieve rapid ROI and dramatically lower their operational expenses.

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This tutorial will explain How to determine what device mac address is on what port on your Cisco switch.This is very useful when some user want to know if the secific port is connecting to their server/PC.

The Cisco IOS CLI command

The easiest way to see which Ethernet MAC address is on which port is to use the show mac-address-table command.

Here is an example:

switch# show mac-address-table

Mac Address Table
——————————————-

Vlan    Mac Address       Type        Ports
—-    ———–       ——–    —–
1    0007.e9e2.2d7d    DYNAMIC     Fa0/5
1    0009.0f30.07e9    DYNAMIC     Fa0/48
1    0009.5bbc.af04    DYNAMIC     Fa0/28
1    00e0.bb2c.30d1    DYNAMIC     Gi0/1
1    00e0.bb2c.3e5f    DYNAMIC     Gi0/1

Total Mac Addresses for this criterion: 5

With the command, you can figure out which MAC address is on which port. When you use the command, you have to go to each switch and run the command. If the network is down, you will have to go to the console of each switch.

If you know the switch port you can use the following command

switch# show mac-address-table | i Fa0/5

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Google Chrome is a browser that combines a minimal design with sophisticated technology to make the web faster, safer, and easier.

First you need to download .deb package from here now you need to install this .deb file by double clicking on it or using the following command

sudo dpkg -i google-chrome-stable_current_i386.deb

If you see any dependency errors use the following command

sudo apt-get -f install

You can open google chrome from Applications > Internet -> Chromium Web Browser

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But for some reasons the cookie-management has only 3 modes, without the ability to define whitelists or blacklist with specific domains, probably the google-boys knows who would be blacklist-chartleader. However, for me this is a knock-out criterion and as I couldn’t find a better solution, here is a quick and dirty workaround for a domain-blacklist, at least it prevents persistent cookies for special domains while cookies are generally accepted.

The chrome-cookies are stored in a sqlite database file, the following script deletes all cookies from defined domains before starting chrome (sqlite3 package is required), furthermore the “local state” file will be deleted (contains some client information) and the UserAgent ID can be faked (eg Safari/WinXP, commented out) .

Maybe this script it’s useful to someone, just customize it to your needs and save it to /usr/bin

#!/bin/sh
#satelietentier@gmx.de
#

CONFIG_DIR="$HOME/.config/google-chrome"
COOKIES_FILE="$CONFIG_DIR/Default/Cookies"
LOCAL_STATE_FILE="$CONFIG_DIR/Local State"

#delete cookies containing one of that strings in domain-name before starting chrome
COOKIES_BLACKLIST=(
'google'
'microsoft'
'bing.com'
'yahoo'
)

for (( i=0;i<${#COOKIES_BLACKLIST[@]};i++)); do
echo "delete from cookies where host_key like '%${COOKIES_BLACKLIST[${i}]}%';"
sqlite3 $COOKIES_FILE "delete from cookies where host_key like '%${COOKIES_BLACKLIST[${i}]}%';"
done

#set AGENT_ID to fake the user-agent identification
#AGENT_ID="Mozilla/5.0 (Windows; U; Windows NT 5.1; en) AppleWebKit/522.11.3 (KHTML, like Gecko) Version/3.0 Safari/522.11.3"

#rubbish
rm "$LOCAL_STATE_FILE"

if [ -n "$AGENT_ID" ]; then
exec `google-chrome --user-agent="$AGENT_ID"`
else
exec google-chrome
fi
exit 0


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If you forgot your root password for your debian server use the following procedure to reset.

Boot to the GRUB menu. Then, press <e> (for edit) before Linux has a chance to boot.

Using your keyboard arrow keys, move the cursor down a line or so, and press <e> (for edit) again, you should now be on the kernel line, and press <End> to go out to the very end of that line. Now hit the spacebar once, if necessary, to add a space, and then add one of the folllowing:

init=/bin/bash

or

init=/bin/sh

Then press <Enter>, and you’re back at the kernel line, press <b> (for boot) and the computer will proceed to boot to a root prompt.

At this point, the root file system is still mounted read-only, so enter the following command:

mount -n -o remount,rw /

Then type:

passwd

Enter your new password. Retype if asked to confirm.
Then restart the machine by typing:

reboot

Now you should be able to login with your new root password as required.

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Learn the basics of the Linux operating systems. Get to know what it is all about, and familiarize yourself with the practical side. Basically, if you’re a complete Linux newbie and looking for a quick and easy guide to get you started this is it.

You’ve probably heard about Linux, the free, open-source operating system that’s been pushing up against Microsoft. It’s way cheaper, faster, safer, and has a far bigger active community than Windows, so why aren’t you on it? Don’t worry, Makeuseof.com understands. Like many things, venturing off into a completely unknown world can seem rather scary, and also be pretty difficult in the beginning. It’s while adapting to the unknown, that one needs a guiding, and caring hand. This guide will tell you all you need to know in 20 illustrated pages, helping you to take your first steps. Let your curiosity take you hostage and start discovering Linux today, with this manual as your guide! Don’t let Makeuseof.com keep you any longer, and download the Newbie’s Initiation to Linux. With this free guide you will also receive daily updates on new cool websites and programs in your email for free courtesy of MakeUseOf.

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The GNU/Linux systems have reached an important level of maturity, allowing to integrate them in almost any kind of work environment, from a desktop PC to the sever facilities of a big company.

In this ebook “The GNU/Linux Operating System”, the main contents are related with system administration. You will learn how to install and configure several computer services, and how to optimize and synchronize the resources using GNU/Linux.

The topics covered in this 500+ page eBook include Linux network, server and data administration, Linux kernel, security, clustering, configuration, tuning, optimization, migration and coexistence with non-Linux systems. A must read for any serious Linux system admin.

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The Ubuntu Karmic Koala Bible is a guide that’s both great for Linux initiates, and invariably useful for Linux intermediates. With over fifty pages of copy-paste tutorials, this guide belongs in the virtual library of every Linux user.

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