The Basic goal of this article is to analysis about Server Hardening Checklist. Any information security policy or ordinary will consist of a condition to use a ‘hardened build standard’. The concept of hardening is straightforward enough, but knowing which cause of information you should position for a hardening checklist when there are so many published can be confusing. Here discuss about Server Hardening Checklist Reference Sources. The most admired ‘brands’ in this region are the Center for Internet Security or CIS hardening checklists (free for personal use), the NIST (aka National Vulnerability Database) provided National Checklist Program Repository or the SANS Institute Reading Room articles concerning hardening of Top 20 Most serious Vulnerabilities.