Digital Technology World

    Let’s start by defining defense in depth. To understand defense in depth, picture a castle from medieval times. Think of all the security measures they put in place. First, you had the moat and only a single retractable bridge across it. If you somehow made it across the moat, you had to deal with the wall. So, you made it across the moat and scaled the wall? Now the castle is at the top of the hill, you’re wearing 100 pounds of armor and weaponry, walking uphill, sometimes several miles. Some castles even had interior walls that forced you to take a certain, often very narrow, path. But you have to do all of that while archers are shooting at you, they’re rolling huge boulders down the hill at you, they’ve probably dumped something on the ground to make it slick, the list goes on and on and on. And then, when you finally breach the castle, you have to climb a whole host of stairs, usually fighting (fully rested) enemy soldiers as you go. For this reason, many would-be attackers de

 On occasion, you may find yourself in a situation where you need your computer to start up in a different way than it usually does. Whether you're troubleshooting to find the source of an issue with your computer or upgrading your computer's operating system to the latest version, you'll sometimes need to load data directly from a CD, a flash drive, secondary hard drive or even a second operating system installed on your computer. Luckily, you don't have to be a tech professional to do this: you can easily accomplish this task by using the Windows Boot Manager, accessed through your computer's startup sequence or through a menu option inside your Windows operating system's settings. What Is Windows Boot Manager? The Windows Boot Manager is a small piece of utility software installed to your boot volume – the small amount of space reserved on your hard drive that controls the way your computer starts up. Usually, Boot Manager works in the background when you tur

  The network adapter is a card or built-in port on your computer’s motherboard that allows you to connect your computer to a network with a network cable. Like other hardware devices in your computer, the network adapter may require you to install updated drivers for better performance. You can download these drivers from the network adapter’s manufacturer website. Depending on the format of the driver, you may be able to automatically install the update or you may need to update through your computer’s device manager. Step 1 Click the “Start” button from your computer’s desktop. Step 2 Right-click “Computer” and choose “Properties” from the menu. Step 3 Open the “Hardware” tab if you are using Windows XP and click “Device Manager.” Windows Vista and 7 users can click “Device Manager” from the menu in the left panel. Step 4 Click on the arrow next to “Network Adapters.” Your device information, such as model number and make, will appear below the entry. You will need this information

  On occasion, you may find yourself in a situation where you need your computer to start up in a different way than it usually does. Whether you're troubleshooting to find the source of an issue with your computer or upgrading your computer's operating system to the latest version, you'll sometimes need to load data directly from a CD, a flash drive, secondary hard drive or even a second operating system installed on your computer. Luckily, you don't have to be a tech professional to do this: you can easily accomplish this task by using the Windows Boot Manager, accessed through your computer's startup sequence or through a menu option inside your Windows operating system's settings. What Is Windows Boot Manager? The Windows Boot Manager is a small piece of utility software installed to your boot volume – the small amount of space reserved on your hard drive that controls the way your computer starts up. Usually, Boot Manager works in the background when you tu

  On occasion, you may find yourself in a situation where you need your computer to start up in a different way than it usually does. Whether you're troubleshooting to find the source of an issue with your computer or upgrading your computer's operating system to the latest version, you'll sometimes need to load data directly from a CD, a flash drive, secondary hard drive or even a second operating system installed on your computer. Luckily, you don't have to be a tech professional to do this: you can easily accomplish this task by using the Windows Boot Manager, accessed through your computer's startup sequence or through a menu option inside your Windows operating system's settings. What Is Windows Boot Manager? The Windows Boot Manager is a small piece of utility software installed to your boot volume – the small amount of space reserved on your hard drive that controls the way your computer starts up. Usually, Boot Manager works in the background when you tu

  The network adapter is a card or built-in port on your computer’s motherboard that allows you to connect your computer to a network with a network cable. Like other hardware devices in your computer, the network adapter may require you to install updated drivers for better performance. You can download these drivers from the network adapter’s manufacturer website. Depending on the format of the driver, you may be able to automatically install the update or you may need to update through your computer’s device manager. Step 1 Click the “Start” button from your computer’s desktop. Step 2 Right-click “Computer” and choose “Properties” from the menu. Step 3 Open the “Hardware” tab if you are using Windows XP and click “Device Manager.” Windows Vista and 7 users can click “Device Manager” from the menu in the left panel. Step 4 Click on the arrow next to “Network Adapters.” Your device information, such as model number and make, will appear below the entry. You will need this information

  Let’s start by defining defense in depth. To understand defense in depth, picture a castle from medieval times. Think of all the security measures they put in place. First, you had the moat and only a single retractable bridge across it. If you somehow made it across the moat, you had to deal with the wall. So, you made it across the moat and scaled the wall? Now the castle is at the top of the hill, you’re wearing 100 pounds of armor and weaponry, walking uphill, sometimes several miles. Some castles even had interior walls that forced you to take a certain, often very narrow, path. But you have to do all of that while archers are shooting at you, they’re rolling huge boulders down the hill at you, they’ve probably dumped something on the ground to make it slick, the list goes on and on and on. And then, when you finally breach the castle, you have to climb a whole host of stairs, usually fighting (fully rested) enemy soldiers as you go. For this reason, many would-be attackers deci

  On occasion, you may find yourself in a situation where you need your computer to start up in a different way than it usually does. Whether you're troubleshooting to find the source of an issue with your computer or upgrading your computer's operating system to the latest version, you'll sometimes need to load data directly from a CD, a flash drive, secondary hard drive or even a second operating system installed on your computer. Luckily, you don't have to be a tech professional to do this: you can easily accomplish this task by using the Windows Boot Manager, accessed through your computer's startup sequence or through a menu option inside your Windows operating system's settings. What Is Windows Boot Manager? The Windows Boot Manager is a small piece of utility software installed to your boot volume – the small amount of space reserved on your hard drive that controls the way your computer starts up. Usually, Boot Manager works in the background when you tu

    while TCP/IP is the newer model, the Open Systems Interconnection (OSI) model is still referenced a lot to describe network layers. The OSI model was developed by the International Organization for Standardization. There are 7 layers: Physical (e.g. cable, RJ45) Data Link (e.g. MAC, switches) Network (e.g. IP, routers) Transport (e.g. TCP, UDP, port numbers) Session (e.g. Syn/Ack) Presentation (e.g. encryption, ASCII, PNG, MIDI) Application (e.g. SNMP, HTTP, FTP) People have come up with tons of mnemonic devices to memorize the OSI network layers. One popular mnemonic, starting with Layer 7, is “All People Seem To Need Data Processing.” But one that I’m partial to, which starts with Layer 1, is “Please Do Not Throw Sausage Pizza Away.” The TCP/IP model is a more concise framework, with only 4 layers: Network Access (or Link) Internet Transport (or Host-to-Host) Application (or Process) Also read :  cyber engineering

 A lot has changed with wireless networks this past decade. Smart devices with built-in wireless network capabilities are all around. This makes Wi-Fi quality and availability a critical resource at home and at work. But troubleshooting is an often overlooked area. Knowing how to check for interference between channels or what your Wi-Fi coverage looks like is handy. We rounded up some of the best wireless analyzer tools for 2019 that allow you to do all of this and more. Some of these tools are free, while others require a license or subscription. Let’s take a look. Wireshark: Packet Analysis Wireshark is an impressive packet-sniffing tool for general network analysis and troubleshooting. It is equally great when you need to deep-dive into wireless networking issues as well. Wireshark allows you to search through all of the traffic on your wireless network and sift through packets and headers to see what is happening. Wireshark is used primarily by professionals that know what they ar

 On occasion, you may find yourself in a situation where you need your computer to start up in a different way than it usually does. Whether you're troubleshooting to find the source of an issue with your computer or upgrading your computer's operating system to the latest version, you'll sometimes need to load data directly from a CD, a flash drive, secondary hard drive or even a second operating system installed on your computer. Luckily, you don't have to be a tech professional to do this: you can easily accomplish this task by using the Windows Boot Manager, accessed through your computer's startup sequence or through a menu option inside your Windows operating system's settings. What Is Windows Boot Manager? The Windows Boot Manager is a small piece of utility software installed to your boot volume – the small amount of space reserved on your hard drive that controls the way your computer starts up. Usually, Boot Manager works in the background when you tur

 A lot has changed with wireless networks this past decade. Smart devices with built-in wireless network capabilities are all around. This makes Wi-Fi quality and availability a critical resource at home and at work. But troubleshooting is an often overlooked area. Knowing how to check for interference between channels or what your Wi-Fi coverage looks like is handy. We rounded up some of the best wireless analyzer tools for 2019 that allow you to do all of this and more. Some of these tools are free, while others require a license or subscription. Let’s take a look. Wireshark: Packet Analysis Wireshark is an impressive packet-sniffing tool for general network analysis and troubleshooting. It is equally great when you need to deep-dive into wireless networking issues as well. Wireshark allows you to search through all of the traffic on your wireless network and sift through packets and headers to see what is happening. Wireshark is used primarily by professionals that know what they ar

 he change goes live with Windows 7 KB4530734 Monthly Rollup. Microsoft has included a new version of the EOSnotify.exe program to the update package that will now display an with a full screen notification explaining why users should upgrade to Windows 10. All Windows 7 Service Pack 1 Starter, Home Basic, Home Premium, and Professional editions will the following full-screen alert when they login or at 12 PM. The text says Your Windows 7 PC is out of support As of January 14, 2020, support for Windows 7 has come to an end. Your PC is more vulnerable to viruses and malware due to: No security updates No software updates No tech support Microsoft strongly recommends using Windows 10 on a new PC for latest security features and protection against malicious software. Read more :  network security engineer jobs in usa

  The default name of the local computer address is called "localhost." Therefore, the localhost is the address of the computer that an application is running on in a network. It is also known as the loopback address because it is the same address as the loopback network interface. The IP address of the localhost is "127.0.0.1." To change the localhost name, you have to edit the "Hosts" file in Windows. Step 1 Click "Start," then type "C:\WINDOWS\System32\drivers\etc" in the search bar, then press "Enter." The System 32\drivers\etc folder will open. Step 2 Click "Tools" on the main menu, then select "Folder options" from the drop-down list. Click the "View" tab, then click the check box next to "Show hidden files, folders, and drives" under "Hidden files and folders." Click the "Apply to Folders" button. The "Hosts" file will appear in the System 32\drivers\

  A nice feature of the Windows operating system is the ability to network computers together. The default network for the Windows operating system is called "Workgroup." Often a user will set up a new network of computers, name it something else and then have difficulty deleting the original default Workgroup. Step 1 Go to the Windows desktop and click on the "Start" button. Step 2 Select "Control Panel," then "System." Step 3 Select the tab labeled "Computer Name," and then take note of the name that is next to the word Workgroup. Step 4 Close this window, go back to the Windows desktop and click "Start" again. Select "My Network Places." Step 5 The icons showing the workgroups will appear, one of them being the new one you created. Go back to the Control Panel and click on "System" and "Computer Name" again. Step 6 Click on "Change" and then change the Workgroup name to the name of th

 On occasion, you may find yourself in a situation where you need your computer to start up in a different way than it usually does. Whether you're troubleshooting to find the source of an issue with your computer or upgrading your computer's operating system to the latest version, you'll sometimes need to load data directly from a CD, a flash drive, secondary hard drive or even a second operating system installed on your computer. Luckily, you don't have to be a tech professional to do this: you can easily accomplish this task by using the Windows Boot Manager, accessed through your computer's startup sequence or through a menu option inside your Windows operating system's settings. What Is Windows Boot Manager? The Windows Boot Manager is a small piece of utility software installed to your boot volume – the small amount of space reserved on your hard drive that controls the way your computer starts up. Usually, Boot Manager works in the background when you tur

  To buy a personal computer, we know that there are desktops, business books, game books, but occasionally have seen workstations. If you are working in the enterprise also know that there are servers. What are the differences of workstations, servers and PC? In essence, whether it is a desktop or a notebook, a game book, a workstation or a server, it can be collectively referred to as a computer. And in the hardware configuration, it is also composed of the chassis, power supply, motherboard, processor, graphics card, memory, hard disk, etc. From the operating system, currently mainly Windows 10, Linux and so on. Therefore, we first understand the difference between these two types of computers from both hardware and software. The other is the demand, that is, the use. You can not buy a server for browsing the web, watching videos. If you are a professional e-sports player, it is impossible to buy a thin business book for playing games. It should be noted that the servers, workstatio

  The network adapter is a card or built-in port on your computer’s motherboard that allows you to connect your computer to a network with a network cable. Like other hardware devices in your computer, the network adapter may require you to install updated drivers for better performance. You can download these drivers from the network adapter’s manufacturer website. Depending on the format of the driver, you may be able to automatically install the update or you may need to update through your computer’s device manager. Step 1 Click the “Start” button from your computer’s desktop. Step 2 Right-click “Computer” and choose “Properties” from the menu. Step 3 Open the “Hardware” tab if you are using Windows XP and click “Device Manager.” Windows Vista and 7 users can click “Device Manager” from the menu in the left panel. Step 4 Click on the arrow next to “Network Adapters.” Your device information, such as model number and make, will appear below the entry. You will need this information