ROHIT PATEL

LINUX BOOT STEP ??? The following are the 6 high level stages of a typical Linux boot process: 1. BIOS BIOS stands for Basic Input/Output System Performs some system integrity checks Searches, loads, and executes the boot loader program. It looks for boot loader in floppy, cd-rom, or hard drive. You can press a key (typically F12 of F2, but it depends on your system) during the BIOS startup to change the boot sequence. Once the boot loader program is detected and loaded into the memory, BIOS gives the control to it. So, in simple terms BIOS loads and executes the MBR boot loader. 2. MBR MBR stands for Master Boot Record. It is located in the 1st sector of the bootable disk. Typically /dev/hda, or /dev/sda MBR is less than 512 bytes in size. This has three components 1) primary boot loader info in 1st 446 bytes 2) partition table info in next 64 bytes 3) mbr validation check in last 2 bytes. It contains information about GRUB (or LILO in ol...

What is dwm.exe And Why Is It Running? You are no doubt reading this article because you are wondering why this dwm.exe process is taking more memory than you think it should, and you are curious what it does. Thankfully for you, we have the answer. So What Is It Anyway? Desktop Window Manager (dwm.exe) is the compositing window manager that gives you all those pretty effects in Windows Vista: Transparent windows, live taskbar thumbnails ( that you can resize now ), and even the Flip3D switcher that you can disable and replace with Switcher . What happens in Vista is that applications write the picture of their window to a specific place in memory, and then Windows creates one “composite” view of all the windows on the screen before sending it to your monitor. Because Vista is keeping track of the contents of each window, it can add effects when layering the windows such as the transparency we’re all used to, as well as the live preview thumbnails. The benefit to u...

     Latest Hacking Tech. Videos Training Guide Complete                         The Hacks Wireless hotspots are everywhere.  With T-Mobile, Concourse, Wayport, etc., a mobile user can obtain connectivity quickly and easily in a wide variety of public locations.  Some of these hotspots are free and some of them require a fee or subscription.  Either way, you will continue to see how being in a public Wi-Fi hotspot poses the greatest security risk you will find. Stealing Wi-Fi Hotspot Subscription Credentials A big issue a few years back had to do with dial-related fraud in Russia.  Basically, usernames and passwords to dial accounts were being bought and sold on the black market and the owner's of the stolen credentials were being hit with enormous usage charges.  In actuality, this still takes place.  With the onset of Public Wi-Fi locations, the threat of frau...

MCSE Tutorials Download MCSE 2003 MCSE 2003 Certification has in total seven examinations viz., four networking examinations, one design examination, one client operating system examination and one elective examination. The elective examination can be selected from a broad range of topics and the common ones are being Exchange, Security, SQL and CompTia A+ and Security +. The topics include configuring, installing and administering Windows XP Professional, implementing, planning and maintaining, Windows Server 2003 environment, Server 2003 network infrastructure and Server 2003 Active Directory infrastructure. The topics also include Microsoft SQL Server, Microsoft Exchange, Active Directory, Network infrastructure, network security, and topics on general networking and Microsoft products only. Certification Changes Microsoft has discontinued the MCSE certification on Windows Server 2008 and beyond. You can upgrade an existing MCSE certification to MCITP:SA or MCITP:EA by taking the...

Cisco Packet Tracer Tutorial - Good for CCNA      CISCO Packet Tracer 5.0 It provides a simulation-based environment for CCNA-level networking training. It offers a unique combination of visualization tools, complex assessment and activity authoring capabilities, and opportunities for multiuser collaboration and competition. Overview: Packet Tracer 5.0 provides a simulation-based environment for CCNA-level networking training. It offers a unique combination of visualization tools, complex assessment and activity authoring capabilities, and opportunities for multiuser collaboration and competition. For students, Packet Tracer offers extensive learning benefits: * Provides a versatile practice and visualization environment for the design, configuration, and troubleshooting of network environments * Offers an exploratory development environment that enables users to design, build, and configure networks with drag-and-drop devices * Allows users to observ...