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End of Microsoft Windows 7 security updates from today

  • Post author: Omid Farhang
  • Post published: January 10, 2023
  • Reading Time: 1 min
  • Word Count: 106 words

Starting today, January 10th, Windows 7 Enterprise and Professional operating systems will no longer receive security updates. Thus, computers that still run these OS will no longer be protected against critical vulnerabilities. Apart from the operating system itself, browsers (both Edge and third-party browsers), as well as services from other non-Microsoft vendors, such as NVIDIA, have confirmed that they have also stopped offering new security patches in Windows 7. Actions to be taken You should upgrade your Microsoft Windows to newer versions, if your hardware does not support Windows 11, you may upgrade to Windows 10 or maybe consider switching to another Operation System like Linux. ...

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How to Upgrade Ubuntu

  • Post author: Omid Farhang
  • Post published: December 30, 2022
  • Reading Time: 1 min
  • Word Count: 207 words

Update Release Name in Sources To start upgrading you need to change the /etc/apt/sources.list file and replace the name of your previous release with new one. So, for example if you are 20.04, replace every instance of focal with kinetic. If you currently have 22.04, replace jammy with kinetic. This process can be automated by using the following sed command: 1 sudo sed -i 's/jammy/kinetic/g' /etc/apt/sources.list Then, look in /etc/apt/sources.list.d/. Change any files in there the same way. ...

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How to Upgrade Ubuntu Kernel

  • Post author: Omid Farhang
  • Post published: December 30, 2022
  • Reading Time: 2 min
  • Word Count: 401 words

Ubuntu by default uses LTS Kernels: Canonical provides long-term support (LTS) kernels for Ubuntu LTS releases. Canonical also provides interim operating system releases with updated kernels every 6 months. For customers and business partners that don’t have specialised bleeding-edge workloads or latest hardware needs, the latest LTS release ”-generic” kernel is the best option for them such as the 4.15 default kernel in Ubuntu 18.04 LTS. Customers who need the latest hardware support capability can install the latest HWE kernel such as the ones contained in interim releases, keeping in mind the shorter support lifespan associated with these kernels (9 months). HWE kernel customers are recommended to upgrade to a newer LTS release that supports their hardware and/or software needs as soon as it is available. Another option for customers is to use point releases. For example, there is an 18.04.4 point release as of February 2020, which includes an updated 5.3.x kernel but is also considered LTS, exactly like the original GA 4.15 kernel in 18.04. ...

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Farewell Lastpass, We don't need more data breach

  • Post author: Omid Farhang
  • Post published: December 29, 2022
  • Reading Time: 2 min
  • Word Count: 369 words

You’ve heard it again and again: You need to use a password manager to generate strong, unique passwords and keep track of them for you. And if you finally took the plunge with a free and mainstream option, particularly during the 2010s, it was probably LastPass. For the security service’s 25.6 million users, though, the company made a worrying announcement last week: A security incident the firm previously reported on November 30 was actually a massive and concerning data breach that exposed encrypted password vaults—the crown jewels of any password manager—along with other user data. ...

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Cross-platform botnet targets SSH-enabled devices

  • Post author: Omid Farhang
  • Post published: December 12, 2022
  • Reading Time: 1 min
  • Word Count: 109 words

Microsoft researchers found a cross-platform botnet that originates from malicious software downloads on Windows devices & succeeds in propagating to a variety of Linux-based devices by enumerating default credentials on internet-exposed SSH-enabled devices. Microsoft researchers observed that the initial infection points related to the botnet were devices infected through the installation of malicious cracking tools that purport to acquire illegal Windows licenses. The cracking tools contain additional code that downloads and launches a fake version of svchost.exe through a PowerShell command. In some cases, the downloaded file is named svchosts.exe. ...

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How To Use Cloudflare WARP On Linux

  • Post author: Omid Farhang
  • Post published: November 27, 2022
  • Reading Time: 2 min
  • Word Count: 233 words

What is WARP? The Cloudflare WARP client allows individuals and organizations to have a faster, more secure, and more private experience online. The WARP client sits between your device and the Internet, and has several connection modes to better suit different needs. Install Installing Warp Client (aka Cloudflare Zero Trust Client) is so easy, specially if your OS uses AUR. AUR Use your AUR helper to find and install cloudflare-warp-bin, for example I use yay here: ...

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Install and Configure Oh My Zsh and use it in VSCode

  • Post author: Omid Farhang
  • Post published: June 5, 2019
  • Reading Time: 3 min
  • Word Count: 509 words

If you use the simple Bash Terminal in your OS, you may want to give Zsh a try to use a faster and safer terminal with many more features. The simple Bash that exist in the common dist of Linuxes are not changed over years and just received some security fixes, but the community behind Zsh are improving it everyday and bring new useful plugins. I use ‘Oh my Zsh’, Oh My Zsh is an open source, community-driven framework for managing your zsh configuration. ...

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Set permanent custom resolution for Ubuntu and KDE Using Xrandr and Xsetup

  • Post author: Omid Farhang
  • Post published: May 24, 2018
  • Reading Time: 2 min
  • Word Count: 227 words

After switching from Gnome and Unity to KDE, I had a problem with SDDM and it was that it could not detect correct resolution for my UltraWide monitor and set it to Full HD instead of 2560×1080. I had a similar problem in Ubuntu with another old monitor. Anyway that solution is same in both cases. The solution for this problem is using Xrandr and Xsetup to set the correct resolution and make it permanent. ...

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Google Chrome in Ubuntu keeps detecting network change

  • Post author: Omid Farhang
  • Post published: July 6, 2017
  • Reading Time: 1 min
  • Word Count: 139 words

Recently I had problem with my Ubuntu, Whenever I tried to open a website my Chromium told me that a Network Change has been detected and after 1-2 reload that sites would load and sometimes failed to load fully. After looking up for that problem, I found out many other people had same problem and it has something to do with “avahi-daemon”. Solution According to the links I found in Ubuntu forums, this problem comes from IPv6 in Ubuntu and disabling that service will fix it, I tried it and it worked: ...

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Test Gnome on Ubuntu and Rescue Back

  • Post author: Omid Farhang
  • Post published: February 9, 2017
  • Reading Time: 2 min
  • Word Count: 403 words

How it started A few days ago I just decided to give my Ubuntu a new look and experience. I thought KDE is not in a good situation and maybe Gnome 3 is a better option than Unity. The easiest option to try Gnome on Ubuntu (Without a clean install of OS) is to install it as a package: 1 sudo apt-get install ubuntu-gnome-desktop During the install process it asks for Display Manager, you have options to choose, gdm and lightdm, since I want to try Gnome, I select gdm: ...

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