What are the most important steps you would recommend for securing a new web server?

Hello Anil Yadav,To secure a web application the first criteria to be considered is "What will this application host"Varying on the sensitiveness of the data / processes performed by the application, you will have multiple steps to secure the application. However, I will put it in short here.1. Application Security Design Review during SDLC2. Network Architecture and Web Application Firewall (WAF) if budget is sufficient3. Secure Coding Practices should be in place.4. Based on the data/processes, Consider a Private Server instead of shared hosting5. Consider an application penetration testing over a Test Environment6. Repeat from step1 when there is a change in the application 7. Perform Server Vulnerability Assessment OR ask  the hosting provider for information.