SEARCH KEYWORD -- SYSTEM DESIGN


  Install Kubernetes with minikube and docker on Ubuntu

When someone just wants to play around Kubernetes on its local environment without accessing to Cloud provider resources, one can set Kubernetes up on local environment with minikube with single node mode. This post will provide a simple guideline on how to set up KUbernetes with minikube and docker on Ubuntu. Before all the steps can be started, you may need to first set up kubectl which is a command line tool to operate on Kubernetes resources. Post that, can ensure that docker is installed on...

   KUBERNETES,MINIKUBE,DOCKER,UBUNTU     2021-06-01 05:37:40

  Common usage of ls command in Linux

In Linux, ls might be one of the most frequently used commands. It is used to list files in a specific directory. In most cases, we may just use ls -l to list the files under a directory. But have you explored other usages of this command. In this post, we will summarise some other common usages of ls command Assuming we have below directory structure in our system, let's see them using tree command. List details of the files If we want to list the details of the files in /home/alvin/test_...

   LINUX,SHELL,LS     2018-12-16 03:00:42

  What is goroutine?

Casual Talk Golang is quite enjoyable to write, aside from the tedious if err != nil checks. One of the fundamental reasons for the joy is goroutine, a core feature of Golang. Understanding goroutines in detail is worthwhile, as they contribute significantly to the pleasure of working with Golang. So, let's talk about goroutines, hoping to provide some insights to the readers. TL;DR: We'll start by talking about assembling a computer, then delve into some concepts of the operating system, such ...

   EXPLANATION,GOLANG,GOROUTINE     2024-01-21 03:26:10

  Different types of keystore in Java -- PKCS12

PKCS12 is an active file format for storing cryptography objects as a single file. It can be used to store secret key, private key and certificate.It is a standardized format published by RSA Laboratories which means it can be used not only in Java but also in other libraries in C, C++ or C# etc. This file format is frequently used to import and export entries from or to other keystore types. Next we will explain the operations which can be performed on PKCS12 keystore. Create PKCS12 keystore Be...

   Java, PKCS12, keystore, tutorial     2015-01-04 21:08:49

  VirtualBox Q&A(Host OS: Windows; Guest OS: Ubuntu)

This is a Q&A post after sharing Guide for installing Ubuntu in VirtualBox on Windows 1. If the resolution of the installed guest OS on the VirtualBox is too small(For example 640x480) and you cannot adjust it through System Settings -> Display, what should you do? A: In this case, it is mostly probably you don't have the VirtualBox Guest Additions installed. You can install the Guest Additions on your guest OS by: sudo apt-get install virtualbox-guest-dkms Then restart the VM and you wil...

   VIRTUALBOX,HOST ONLY,RESOLUTION,Q&A,STATIC IP     2016-08-12 04:24:40

  Does Android team like to eat Kitkat?

Google released the new Android development code for Android 4.4 :KitKat.The new version will bring astonishing user experience for Android users. The interesting thing about the name is that it has the same name as one brand of Nescafe's chocolate wafer. Nescafe has authorized that Google can use this name as their development code. We may guess that the project team or the director was eating Kitkat or like to eat Kitkat while they were brainstorming the new development code, so they came out ...

   Android,Kitkat,development code     2013-09-03 23:03:03

  2D Indoor CQB Robot Simulation

Program Design Purpose: The integration of robots in Close Quarters Battle (CQB) represents a significant advancement in modern military and law enforcement tactics. These robots, designed to navigate tight spaces, gather real-time intelligence, and engage threats, are invaluable assets in high-stakes scenarios. Our goal is to develop a 2D tactical board simulation system, similar to a computer game, that can load building floor blueprints, display CQB squad (robot) positions, enemy locations, ...

       2024-08-11 08:40:31

  SkyDrive may be banned on App Store

Apple App Store may block Microsoft SkyDrive, because Microsoft is not willing to pay for SkyDrive to be on App Store.According to App Store agreement, 30% income of an app on App Store should be paid to Apple, However, Microsoft said it was difficult for them to accept it.SkyDrive provides users with 7GB of free storage space, after which the user should pay for extra storage space up to 100 GB. Apple insists that 30% of sales of SkyDrive storage space should be paid to Apple, Microsoft thinks...

   App Store, SkyDrive,Ban     2012-12-11 13:41:11

  Deploying DeepSeek-R1 Locally with a Custom RAG Knowledge Data Base

Project Design Purpose : The primary goal of this article is to explore how to deploy DeepSeek-R1 an open-source large language model (LLM), and integrate it with a customized Retrieval-Augmented Generation (RAG) knowledge base on your local machine (PC/server). This setup enables the model to utilize domain-specific knowledge for expert-level responses while maintaining data privacy and customization flexibility. By doing so, users can enhance the model’s expertise in specific technical ...

   LLM,RAG,DEPLOYMENT     2025-02-10 00:17:37

  Alibaba Cloud was down again just after Singles' Day promotion

On November 12th, several popular Alibaba platforms and services experienced technical issues, causing widespread disruption and becoming hot topics on Weibo, the Chinese equivalent of Twitter. These services include Taobao, Xianyu, DingTalk, Aliyun Drive etc. Users took to social media to report instances of "Taobao crashing." Some encountered code display errors on the shopping page, while others faced a blank screen. However, a few users claimed they were still able to shop without any prob...

   ALIBABA CLOUD,ALIYUN,DOWN     2023-11-12 21:44:16

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