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  Python SSH Connection Tools

Program Design Purpose: We aim to create a simple Python SSH tool library that facilitates SSH communication, SCP file transfer, and SSH port forwarding through multiple jump hosts in an SSH tunnel chain. The library is designed to provide a simple API for establishing nested SSH tunnel connections through multiple jump hosts with customizable TCP ports. This allows users or their programs to automate SSH tasks such as: Batch processing SSH connection tasks, such as connecting to multiple ser...

       2024-08-30 04:46:05

  Calculating Token Count for Claude API Using Go: A Step-by-Step Guide

When working with large language models like Claude from Anthropic, understanding how many tokens your input consumes is essential for managing costs and optimizing performance. In this blog, we’ll explore how to calculate token counts for a given input using Go. We’ll use Anthropic’s count_tokens API endpoint, which provides a straightforward way to determine token usage. Prerequisites Before diving in, ensure you have: A working Go environment (installation guide). An Anthro...

   CLAUDE,GO,GOLANG,TOKEN CALCULATION,GUIDE,EXAMPLE     2024-12-23 22:25:29

  Benefits and Drawback of a Layered Architecture

Most enterprises today are application centric. But the problem with the application is that their database schemas, user interfaces, programming interfaces and object models are tightly coupled and difficult to change. If you want to add a new field to a database table and you’re lucky, the change will reflect through the entire system. But often the change needs to be replicated manually across the entire system. And as applications are difficult to change, adding business rules or proce...

   JAVA, PROGRAMMING,WEB DEVELOPMENT,ENTERPRISE APPLICATION     2017-05-04 08:19:34

  How to commit code to OpenStack

If you want to make contributions to OpenStack, the best way to start is to help the community with blueprint or submit bug fix. To commit codes, you need to conform to some rules in the community. Work flow Register an OpenID Apply for a CLA certificate Apply for company CLA certificate Update contributor list Join OpenStack Contributors group and OpenStack group Set up SSH Keys Get a blueprint/bug git clone codes to local disk. Configure user name and user email and openid Modify codes in a l...

   OpenStack,Contribution     2013-08-04 23:04:45

  Here is Surface Pro 4

Microsoft is holding a new product release event today in New York. The biggest excitement Microsoft brings us is the Surface Pro 4. The most advanced Microsoft tablet ever equipped with Windows 10. Here are the selling points of Surface Pro 4: Performance 6th generation of Intel Core processor 30% faster than Surface Pro 3 50% faster than MacBook Air Up to 15 G RAM Up to 1TB storage 8.4 mm. Thinnest Surface Pro ever Four USB 3.0 ports Two 4K display ports Ethernet One productive connection S...

   WINDOWS 10,SURFACE PRO 4,MICROSOFT     2015-10-06 10:39:57

  Create Multiple Page PDF with Top and Bottom Margins using jsPDF addImage

I’ve been working on a browser extension that saves web pages as PDFs in reader mode using jsPDF + html2canvas, providing a clean and distraction-free way to view them offline. Everything was going smoothly until I noticed a UI issue—there were no top and bottom margins at the page break area.When converting an HTML page to a PDF using html2canvas and jsPDF, the process works by first rendering the entire webpage as a canvas. html2canvas captures everything visible in the browser and...

   JSPDF,MULTIPLE PAGE,MARGIN,BOTTOM MARGIN,ADDIMAGE     2025-03-06 01:34:53

  First Touch on OpenAI API

It’s been a while since ChatGPT launched, and I’ve been meaning to try out the OpenAI API. Recently, I finally took the plunge, so here’s a walkthrough of my initial experience using it. Objective: I’ve previously used ChatGPT’s interface for language translation tasks between Chinese and English. For this API experiment, I aimed to set up a simple translation function using the OpenAI API. Step 1: Getting the API Key First, to access the API, I created an OpenAI ac...

   TUTORIAL,API,TRANSLATION,OPENAI,FREE ACCOUNT     2024-11-11 22:25:07

  Top 10 Go Coding Traps and Tips

Go is currently the most common programming language in cloud development. Though I use it very much in my work, I am still repeating certain mistakes. This article is more a record of these errors, figuring out the causes and solutions so that people who read this article will save themselves time when coming across the same problems. Let’s cut through to the tips. Don’t rely on index var in the for loop The most common mistake we make is that we often create goroutine&nbs...

   TIPS,GOLANG,NIL INTERFACE     2021-07-03 23:45:51

  Set Real-Time Clock Unit for OT/IoT Device

Configure DS1307 RTC on BeagleBone-Black Arduino or Raspberry-PI Figure-00: Project Overview Diagram , version v0.1.2 (2024) Program Design Purpose: Real-Time Clock (RTC) modules are essential for maintaining accurate timekeeping in various applications, including system clocks, data logging, and alarm systems. In scenarios where devices operate offline, such as a ship's NMEA 0183 data recorder that logs engine and rudder data, or an RTU (Remote Terminal Unit) with real time state change config...

       2024-08-18 03:09:06

  Generate signed certificate from CSR in Java

In our previous tutorial, we have explained how to generate CSR which can be sent to CA for generating a signed certificate. In this tutorial, we will explain how to generate the signed certificate from CSR in Java. We will not use an actual CA but a self-signed certificate to act as a CA certificate. Since the CSR contains the subject information where a certificate needs to be generated and signed for. The key here is to extract the subject information from the CSR and then set it as the subje...

   JAVA,CSR,SIGN CERTIFICATE     2020-10-24 07:03:17

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