পূর্ববর্তী পোস্ট মালয়েশিয়ায় রিলোকেশন ৬ - ট্যাক্স বিষয়ক

পূর্ববর্তী পোস্ট মালয়েশিয়ায় রিলোকেশন ৫ - লাইফস্টাইল টিপস

Installing OpenVPN in your own server gives you two major benefits. First, you will have better privacy control. Second, no need to spend on pay-per-user thing. As long as the CPU can handle encryption/decryption, and the ethernet controller can handle the traffic, OpenVPN is a pretty good choice for providing VPN service to a small-sized team.

I am a MySQL guy. I can query MySQL, BigQuery or SQL-like databases for my day to day business. Last week, I faced a challenge where I needed to extract some information from a production MongoDB server that involves aggregation. I had no idea how MongoDB works or how to run CRUD operation on such database. So obviously, I spent my whole weekend in learning MongoDB. In this post I am going to share the MongoDB queries I learnt, and the equivalent MySQL queries as well.