Security

Introduction 802.1X is a network access control (NAC) standard that provides an authentication framework for controlling access to network resources. It is a part of the IEEE 802.1 group of protocols, which defines how devices in a Local Area Network (LAN) communicate with each other. The main purpose of 802.1X is to ensure that only authorized devices or users are allowed to connect to a network, thereby enhancing network security. It operates at the link layer of the OSI model and is primarily used for wired and wireless Ethernet networks....

Overview Wazuh is an open-source security information and event management (SIEM) tool. It is designed to help organizations detect and respond to security threats by providing log analysis, intrusion detection, vulnerability detection, and other security-related capabilities. Wazuh is built on top of the ELK (Elasticsearch, Logstash, and Kibana) stack and integrates with other security tools to provide a comprehensive security solution. Wazuh Components The Wazuh indexer is a highly scalable, full-text search and analytics engine....

Have you ever forgot the computer password, and want to reset it? Typically, you just need to boot into Windows installer ISO, open cmd and rename the utilman.exe. However, you can’t do that if the bitlocker is enabled on that computer. You will need to disable the bitlocker first. On this article, I want to share how to disable the bitlocker and reset the forgotten password. This require either the Bitlocker Password or Bitlocker Recovery Key...

Download necessary files and its checksum. https://duo.com/docs/checksums Every time you download the file, it is advised to check the downloaded file and its checksum to ensure there was no corruption that might be caused by unstable network connection during the download or storage failure. Powershell Get-FileHash [download-file] | Format-List Duo Authproxy Start authpoxy net start duoauthproxy Restart authpoxy net stop duoauthproxy && net start duoauthproxy Test Connectivity. [installed-directory]\authproxy_connectivity_tool.exe Reference: https://duo.com/docs/authproxy-reference#start-the-proxy...

Overview. Windows Defender Antivirus is an antivirus and anti-malware software developed by Microsoft. It comes pre-installed on Windows operating systems, starting with Windows 8 and later versions. In early versions of Windows 10, Windows Security is called Windows Defender Security Center. Windows Defender is designed to protect your computer from various types of threats, including viruses, malware, spyware, and other potentially unwanted software. Key features and functions of Windows Defender: Virus & threat protection Monitor threats to your device, run scans, and get updates to help detect the latest threats....

Introduction For the security reasons, we can disaable the printscreen key and disable the USB on a computer to protect the convidential internal data from being copied by the users. Disable Print Screen : Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout] "Scancode Map"=hex:00,00,00,00,00,00,00,00,04,00,00,00,00,00,2a,e0,00,00,37,e0,\ 00,00,54,00,00,00,00,00 Disable USB : Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\usbstor] "Type"=dword:00000001 "Start"=dword:00000004 "ErrorControl"=dword:00000001 "DisplayName"="USB Mass Storage Driver" "ImagePath"=hex(2):73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,44,00,\ 52,00,49,00,56,00,45,00,52,00,53,00,5c,00,55,00,53,00,42,00,53,00,54,00,4f,\ 00,52,00,2e,00,53,00,59,00,53,00,00,00 "massfilter"=dword:00000001 [HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\usbstor\Enum] "Count"=dword:00000001 "NextInstance"=dword:00000001 "0"="USB\\Vid_0930&Pid_6544\\001D92D8F17DC93064210588"