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Jesin A

Hide Last Logged in Username in Windows (Security Policy)

September 25, 2011 Windows Jesin A Leave a Comment

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This tutorial will show you how to hide the last logged in Username in Windows by editing a security policy. But you’d have seen a similar article Hide Last Logged in Username in Windows, this article will describe how to do the same by editing the windows registry. This tutorial will be useful when applying this setting as a policy in a domain environment, but this can also be done on a normal workgroup environment using the secpol.msc command.

Go to Start -> Run or [Windows Key] + R and type secpol.msc, the “Local Security Policy” Window opens. Navigate to Local Policies -> Security Options and look for the policy “Interactive logon: Do not display last user name” and change it to enabled. To apply the changes immediately go to Run and type gpupdate.

Cisco Account Lockout using login block-for

September 22, 2011 Networking Jesin A Leave a Comment

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Account lockout policies can be implemented on Cisco equipment to prevent Brute-Force attacks. This tutorial will explain how to use login block-for command to block users if they exceed a certain number of incorrect login attempts. The login block-for command will block all telnet and SSH connections to that router if incorrect credentials are entered for a specified number of times.Continue Reading…

Tags: account lockout, cisco

How to configure NIS server in Linux

September 4, 2011 Linux Jesin A Leave a Comment

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This article explains how to configure Linux as a NIS (Network Information Service) server. Both server side and client side commands are listed in this tutorial. NIS is a directory service which centralizes user administration. The instructions I outline here will work for Red Hat variant operating systems like CentOS, Fedora etc. NIS was originally called Yellow Pages or YP, but due to copyright issues it was renamed to Network Information Services (NIS). But still packages and services required for NIS start with yp. This tutorial will also explain the usage of autofs for mounting the home directories of users created on the NIS server.Continue Reading…

How to install a Guest OS in VirtualBox

August 27, 2011 Virtualization Jesin A Leave a Comment

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A tutorial on how to install an Operating System in VirtualBox. This is my first article on VirtualBox and I’ll describe the steps involved in creating a Virtual Machine, mounting the ISO file of your Operating System, booting from it and starting the installation. From then on installation of OS will be the same as doing the same on a physical machine. VirtualBox is free to download from http://www.virtualbox.org/wiki/Downloads. After installing VirtualBox follow the steps below. “Guest” OS refers to the operating system which is to be installed inside a virtual machine whereas “host” OS is the operating system installed on the physical machine.Continue Reading…

How to install Windows XP after Windows Vista/7

August 13, 2011 Windows Jesin A Leave a Comment

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This article aims at solving a problem faced by most computer users when trying to setup a dual boot by installing an Operating System older than the currently installed OS. When you install Windows XP after installing Windows Vista or 7 the latter’s boot menu disappears and your PC directly boots into Windows XP. But solving the problem is just a simple matter of executing a few commands.

Step 1: Install Windows XP

So you have a PC with Windows Vista or 7 and want to install Windows XP, don’t worry about anything now just go ahead and install it. Just remember to install it on a partition that DOES NOT have Windows Vista/7 installed. After installation is over you’ll find that there is no option to boot into Windows Vista/7. Don’t panic just follow the remaining stepsContinue Reading…

PHP auto_prepend_file and auto_append_file

August 7, 2011 PHP Jesin A 12 Comments

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This article will show you how to use the PHP configuration directives auto_prepend_file and auto_append_file. These two PHP directives perform the same function as require() but they do it globally on all PHP scripts. The PHP auto_prepend_file and auto_append_file directives can only be used in php.ini files. They do NOT work when used in .htaccess file, I’m mentioning this so that you don’t waste precious time editing your .htaccess file. If you want to set these configuration directives on directory basis you can use them in your custom php.ini file.Continue Reading…

Tags: php.ini

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