Soluții

How to use the ip Command on Linux

• Data 16/11/2023
• Autor Nouras Alexandru
• 1
• 137

How the ip Command Works

With the ip command, you can adjust the way a Linux computer handles IP addresses, network interfaces controllers (NICs), and routing rules. The changes also take immediate effect — you don’t have to reboot. The ip command can do a lot more than this, but we’ll focus on the most common uses in this article. The ip command has many subcommands, each of which works on a type of object, such as IP addresses and routes. There are, in turn, many options for each of these objects. It’s this richness of functionality that gives the ip command the granularity you need to perform what can be delicate tasks. This isn’t ax work — it calls for a set of scalpels. We’ll look at the following objects:

• Address: IP addresses and ranges.
• Link: Network interfaces, such as wired connections and Wi-Fi adapters.
• Route: The rules that manage the routing of traffic sent to addresses via interfaces (links)

How to dismiss “Local Security Authority Protection Is Off” in Windows 11

• Data 16/11/2023
• Autor gabriel alexandru
• 3
• 110

Do you keep receiving a “Local Security protection is off. Your device may be vulnerable.” notification each time you boot into Windows 11’s desktop area? This troubleshooting guide will explain why that happens and what you can do to dismiss it.

You’ve got three methods to deal with a persistent “Local Security Authority protection is off” security warning in Windows 11. You can:

• Dismiss the error: Despite the warning, the chances are Local Security Authority is running in protected mode on your computer. You can safely dismiss it after verifying the LSA state via the Event Viewer.
• Update Windows. At the time of writing, Microsoft has released an official fix with “Update for Microsoft Defender Antivirus antimalware platform – KB5007651 (Version 1.0.2306.10002).” You can install it if it’s available for you.
• Modify the registry: It’s possible to modify the system registry and manually activate Local Security Authority protection to stop the security warning from appearing.

Unable to Print in Windows

• Data 16/11/2023
• Autor Ionut Sutoiu
• 1
• 109

Step 1: Check Printer Connection

1. Ensure that your printer is properly connected to your computer and turned on.
2. Check the USB or network cable connections.

Step 2: Restart Printer and Computer

1. Turn off the printer
2. Shut down your computer
3. Turn on the printer and restart your computer
4. Attempt to print again

Step 3: Set Default Printer

1. Open “Settings” and go to “Devices”
2. Under “Printers & scanners,” select your printer and click “Manage”
3. Make sure the option “Let Windows manage my default printer” is turned on.

Step 4: Check Printer Status

1. Open “Settings” and go to “Devices”
2. Under “Printers & scanners,” select your printer
3. Check if there are any print jobs in the queue. Cancel or restart them.

Step 5: Update or Reinstall Printer Drivers

1. Open “Device Manager” (right-click on the Start button)
2. Expand “Print queues” or “Printers”
3. Right-click on your printer and select “Update driver” or “Uninstall device” followed by reinstalling the drivers.

Step 6: Clear Print Spooler

1. Open the Run dialog (Win + R) and type services.msc
2. Locate “Print Spooler” in the list
3. Right-click on it and select “Stop”
4. Navigate to C:\Windows\System32\spool\PRINTERS and delete all files
5. Restart the Print Spooler service.

Step 7: Check Printer Compatibility

1. Ensure your printer is compatible with your version of Windows
2. Visit the printer manufacturer’s website for updated drivers if needed

Step 8: Run Windows Troubleshooter

1. Open “Settings” and go to “Update & Security”
2. Select “Troubleshoot” and run the “Printer” troubleshooter.

Unable to connect to Wi-Fi on Windows

• Data 16/11/2023
• Autor Ionut Sutoiu
• 4
• 113

Problem: Unable to Connect to Wi-Fi on Windows

Step 1: Check Wi-Fi Hardware

1. Ensure that your Wi-Fi adapter is enabled. You can do this by right-clicking on the network icon in the taskbar and selecting “Open Network & Internet settings”
2. Under “Change adapter options,” right-click on your Wi-Fi connection and make sure it’s enabled.

Step 2: Restart Your Router and Computer

1. Unplug the power from your router.
2. Wait for 10-15 seconds, then plug it back in.
3. Restart your computer.
4. Try connecting to Wi-Fi again.

Step 3: Forget and Reconnect to Wi-Fi Network

1. Open “Settings” and go to “Network & Internet”
2. Under “Wi-Fi,” select your network and click “Forget”
3. Reconnect to the Wi-Fi network by entering the password.

Step 4: Check for Airplane Mode

1. Ensure that Airplane Mode is turned off. You can find this in the Action Center or under “Network & Internet” settings.

Step 5: Run Network Troubleshooter

1. Open “Settings” and go to “Update & Security.”
2. Select “Troubleshoot” and run the “Internet Connections” troubleshooter.

Step 6: Update Wi-Fi Drivers

1. Right-click on the Start button and select “Device Manager”
2. Expand “Network adapters” and right-click on your Wi-Fi adapter.
3. Choose “Update driver” and select “Search automatically for updated driver software”

Step 7: Disable and Enable Wi-Fi Adapter

1. In Device Manager, right-click on your Wi-Fi adapter and choose “Disable”
2. Wait a few seconds, then right-click again and choose “Enable”.