JDBC Architecture

Java Architecture is consist of Java Application, JDBC API, DriverManager, Driver and Database. Java Application is our client program which contains JDBC API client logic and our bussiness logic. JDBC API: JDBC ( Java Database Connectivity) API  provides the connectivity between Java application and Database. Java application can communicate with any Database with the help… Read More

What is Reverse proxy and configure NGINX as a reverse proxy

  What is Reverse Proxy:  Reverse proxy takes the request from the client over the network, forward to the server in an internal server and send back server’s response to the client.   The advantage of Reverse proxy: The reverse proxy hides the existence and characteristics of the server. Reverse proxy protects the server from web-based… Read More

Linux – 10 Useful Networking Commands

Linux is powerful operating system and open source. It provides many inbuilt networking commands for troubleshooting. Here 10 useful networking commands. 1. ifconfig – configure a network interface We can configure network interface related parameters using the ifconfig command, in general, we use ifconfig command to check the IP address.  root@kali:~# ifconfig 2. dig: DNS lookup utility dig… Read More

SFTP files upload and download automation in Linux using shell script

SSH File Transfer Protocol (also Secure File Transfer Protocol, or SFTP) is a network protocol that provides file access, file transfer, and file management over any reliable data stream SFTP server default port is 22. sftp command syntax : (man sftp) sftp [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config] [-o ssh_option] [-P sftp_server_path] [-R num_requests] [-S program] [-s… Read More

How to install NGINX and configure as a Proxy or Load balancer server on Windows/Linux machine in simple steps

NGINX is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server. NGINX is known for its high performance, stability, rich feature set, simple configuration, and low resource consumption. Download NGINX software. click here to redirect NGINX software download page. Installation and run on window machine: i. Copy downloaded… Read More