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Basic Docker Command Examples on Ubuntu – Get Images and Launch Containers

By Silver Moon | August 15, 2024

Docker is a popular “containerization” platform that allows developers to run applications inside isolated environments called containers. Containers are similar to virtual machines, however they do not run an entire operating system (like virtualbox, qemu). In principle containers are somewhat similar to the classic that could be used to setup a completely isolated environment within… Read More »

How to Get true pixel height and width of window in javascript

By Silver Moon | May 26, 2023

If you check the window outerwidth on a maximised browser window, you should get the resolution width of your screen or display in general. For example when I run the following code (in console) in Firefox I get 1920px which is my resolution width: window.outerWidth 1920 On Google Chrome however, the reported dimension is different… Read More »

How to Check OpenCL support in GPU on Linux / Ubuntu

By Silver Moon | May 26, 2023

OpenCL is a general purpose computing api that is designed to be hardware accelerated with a supporting gpu and driver. On Linux this api is supported by all major gpu vendors including nvidia, intel and amd. In this quick tutorial we take a look at how to check if your system support opencl api (with… Read More »

How to Test Disk IO Speed with FIO (Flexible IO Tester) in Linux / Ubuntu / Fedora

By Silver Moon | May 25, 2023

Disk I/O speed is an indicator of how fast the system and read/write to the disk. Usually nvme ssds are the fastest and hard drives and external usb flash drives are the slowest. There are many commands that can be used to benchmark the performance of storage disks on linux. For e.g. sysbench, dd and… Read More »

15 Things to do after installing Kubuntu 23.04

By Silver Moon | June 5, 2023

Switch to better DNS servers Switch to better dns servers like google dns or open dns. I personally use google dns servers: 8.8.8.8 , 8.8.4.4 Right click on the network management icon on the system tray and “Configure Network Connections”. Go to IPv4 tab and enter the dns servers as shown below. You can also… Read More »

How to install Ubuntu 23.04 in Qemu/KVM on Ubuntu Host

By Silver Moon | May 23, 2023

Qemu(+KVM) is a powerful virtualization solution for linux oses. KVM (Kernel based Virtual Machine) is a module built into the linux kernel that provides it virtualization capabilities. Qemu is a hardware emulator that uses kvm to provides all necessary features to create and launch virtual machines with guest operating systems. The other more commonly used… Read More »

How to Check Vulkan Support in GPU drivers on Linux / Ubuntu

By Silver Moon | May 23, 2023

VKCube on Kubuntu 23.04 with Nvidia RTX 3060

Vulkan API is the successor of OpenGL the cross platform api standard for hardware accelerated 3D graphics. It is a cross platform alternative to DirectX which is windows specific only. All major gpu vendors including nvidia, amd and intel provide vulkan support either through their own drivers or via the Mesa graphics library. In this… Read More »

How to plot and monitor CPU temperature graph on Windows

By Silver Moon | September 15, 2023

Open Hardware Monitor CPU Temperature Graph

If you want to monitor the temperature of your cpu while running some intensive application you can plot the graph and see it in realtime. This is often done to benchmark the efficiency of the cooling system and the thermal performance of the cpu. In this article we take a quick look at some tools… Read More »

How to check Ram Rank and Bank details in Linux – decode-dimms

By Silver Moon | May 20, 2023

The decode-dimms program from i2c-tools package can be used to extract spd information from the ram modules which provides details about the module including the timings, clock speed, internal layout of the memory blocks including rank and bank count. The command can be installed with the following commands: sudo apt-get install i2c-tools sudo modprobe eeprom… Read More »

How to check if ISO is bootable in Linux – From Command Line

By Silver Moon | May 20, 2023

So you have downloaded an iso which could be a linux installation or live iso or a windows iso or something other operating system. Now if you are planning to burn it to an actual disk like a cd or dvd, it would be a nice idea to first check if the iso if properly… Read More »

How to Benchmark GPU Performance with IndigoBench on Ubuntu / Linux

By Silver Moon | May 23, 2023

IndigoBench on Asus Tuf A17 - Kubuntu 23.10

IndigoBench IndigoBench is a free and simple tool from Indigo Renderer that uses OpenCL api based library to render graphics using gpu acceleration. It renders an image and then calculates a score based on the performance. This score can be compared with other users in their online benchmark database. This tool is very simple and… Read More »

How to Install Nvidia Drivers on Kubuntu / Ubuntu 23.04 / Linux Mint

By Silver Moon | May 19, 2023

Nvidia Settings Prime Profiles - Performance Mode on Ubuntu

Kubuntu / Ubuntu 23.04 I am running Kubuntu 23.04 with Plasma desktop. You can check your ubuntu version with the lsb_release command: silver@ubuntussd:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 23.04 Release: 23.04 Codename: lunar silver@ubuntussd:~$ The interesting thing this time is that kubuntu has been installed on an external… Read More »

How to Check Un-allocated Disk Space in Linux

By Silver Moon | September 15, 2023

Un-allocated space is that disk space which is not inside any partition and is lying free. This space cannot be formatted to a file-system without first creating a partition in it. In order to use the space in unallocated space, you must either create a new partition in that space, or merge the space with… Read More »

13 Quick “ls” Command Examples in Linux – Browse files and directories

By Silver Moon | May 15, 2023

“ls” (list directory contents) is one of the most commonly used commands in Linux. The command displays a list of all the files and directories in the current directory. It is one of the very first commands one should learn when new to Linux. The command is quite popular, works well enough, and can be… Read More »

How to Setup MySQL Replication on Ubuntu/Debian – A Step-by-Step Guide for Beginners

By Silver Moon | May 15, 2023

In production database setups, mysql replication is commonly used to duplicate a single database over many database servers. The primary database is referred to as the master database, while the other replicated databases are referred to as slave databases. To put it another way, we can use it to duplicate a database. Replication is used… Read More »

How to Test (Benchmark) Disk IO Speed with Sysbench in Linux / Ubuntu

By Silver Moon | May 11, 2023

Sysbench is a command line utility program available on linux that can be used to conduct different types of benchmark tests to measure performance of disk io, memory, cpu and mysql database. In another article we learned how to use sysbench to . In this particular article we take a quick look at how we… Read More »

Tcpdump Command Examples in Linux – Capture, Analyse Network Traffic

By Silver Moon | May 10, 2023

Tcpdump is a command-line tool for capturing and analyzing network packets in Linux. Basically its a packet sniffer that also breaks them down into easy to read format for human beings. It can be a powerful tool for troubleshooting network connectivity issues by analyzing the network traffic on a system. Tcpdump works by listening for… Read More »

How to check USB Port and Device Speed in Linux

By Silver Moon | May 8, 2023

USB ports and devices come in a variety of speeds like USB 2.0 (480 Mbps), USB 3.0 ( 5 Gbps), USB 3.2 Gen 2 (10 Gbps) and so on. When you connect a device to your system on a usb port for the purpose of data transfer (for example an external ssd or hdd) you… Read More »

How to Boot Ubuntu 23.04 Live ISO with Qemu/KVM on Ubuntu Host

By Silver Moon | May 5, 2023

Qemu+kvm is an excellent free virtualisation solution for linux host systems. It can run any gui operating system pretty much like virtualbox or vmware. KVM provides virtualised access to cpu and memory whereas qemu emulates other hardware components like disk drives. Together they provide a complete solution to launch a virtual machine that a user… Read More »

Wget Command Examples in Linux – Download files from command line

By Silver Moon | May 3, 2023

Wget Command ‘Wget’ is developed as a part of the GNU Project. You can use it to download/extract data and content from web servers. Its name is a combination of the “www” and the word get. It supports downloading over multiple protocols like FTP, SFTP, HTTP and HTTPS. Wget is written in c and can… Read More »

Basic Docker Command Examples on Ubuntu – Get Images and Launch Containers

How to Get true pixel height and width of window in javascript

How to Check OpenCL support in GPU on Linux / Ubuntu

How to Test Disk IO Speed with FIO (Flexible IO Tester) in Linux / Ubuntu / Fedora

15 Things to do after installing Kubuntu 23.04

How to install Ubuntu 23.04 in Qemu/KVM on Ubuntu Host

How to Check Vulkan Support in GPU drivers on Linux / Ubuntu

How to plot and monitor CPU temperature graph on Windows

How to check Ram Rank and Bank details in Linux – decode-dimms

How to check if ISO is bootable in Linux – From Command Line

How to Benchmark GPU Performance with IndigoBench on Ubuntu / Linux

How to Install Nvidia Drivers on Kubuntu / Ubuntu 23.04 / Linux Mint

How to Check Un-allocated Disk Space in Linux

13 Quick “ls” Command Examples in Linux – Browse files and directories

How to Setup MySQL Replication on Ubuntu/Debian – A Step-by-Step Guide for Beginners

How to Test (Benchmark) Disk IO Speed with Sysbench in Linux / Ubuntu

Tcpdump Command Examples in Linux – Capture, Analyse Network Traffic

How to check USB Port and Device Speed in Linux

How to Boot Ubuntu 23.04 Live ISO with Qemu/KVM on Ubuntu Host

Wget Command Examples in Linux – Download files from command line

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