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Server Hardening is the term used to describe the use of advanced security measures such as SSH hardening, disabling unnecessary services, hardening systctl.conf and more to increase server security and create a safer server operating environment. The security measures used when performing server hardening services focus on minimizing a server's attack surface and thus decreasing the server's vulnerability to attacks.

Server Hardening Information:

  • The basic strategy behind server hardening is to reduce a server's surface of vulnerability (the different points of which an unauthorized user could gain access to a server's data).
  • There are several methods for hardening Linux and Windows servers, and while hardening has become a more complex process in recent years the basic processes of applying a patch to the kernel, closing open ports, setting up intrusion detection systems, firewalls and intrusion prevention systems.
  • There are hardening scripts and tools now available that can deactivate unneeded features and perform other security measures, but they are still rather complex to use and require a good deal of knowledge to ensure server security.
  • The word "Hardening" was originally used in metallurgy to describe the process in which you made some become hard or harder, thus making it stronger and more difficult to damage. Server hardening got it's name because it makes it harder to inflict damage to a server.
  • More than 30,000 servers are attacked every day and using a combination of server hardening, DNS-level web application firewall services, daily security scans, and monthly updates is the best way to defend your business or organization from cyberattacks.

Why Server Hardening is So Important

A server's default config is not designed for security but for usability, communications and functionality. Most operating systems need to have their config files tweaked in order to lessen the risks of a breach and attack on your server. In order to best protect your business or organization you need to use complex and up to date server hardening techniques. Only the experts at WebLift use the best server hardening techniques and follow a strict policy with up to date server hardening checklists. 

Server Hardening is an important part of server security.

Server Hardening Tips and Tricks:

Every company has it's own method for increasing server security, but our expert team takes it to the next level by offering three levels of security and using the best process in the business.

Some of the the server hardening techniques that WebLift uses include:

  • Minimizing unnecessary software on your servers
  • Disabing unwanted binaries
  • SSH Hardening
  • Changing default ports
  • Disabling direct root logins
  • Disabling unnecessary services
  • Securing /tmp /var/tmp /dev/shm
  • Hiding BIND DNS Sever Version and Apache version
  • Hardening sysctl.conf
  • Minimizing open network ports to be only what is needed for your specific circumstances
  • Configuring the system firewall (Iptables)
  • Hardening the Php installation
  • Limiting user accounts to accessing only what they need.

In addition to those hardening techniques our professional team also does the following:

  • Sets up a DNS-Level web app firewall
  • Configures your web app firewall
  • Monitors your web app firewall
  • Scans your server daily
  • Reviews your server security
  • Performs security updates

Server Hardening Links:

http://www.weblift.com/security/

http://www.colorado.edu/oit/it-security/security-awareness/hardening-your-computer

http://www.globalsecurity.org/military/library/report/1997/harden.pdf

https://msdn.microsoft.com/en-us/magazine/ee310108.aspx

http://reports-archive.adm.cs.cmu.edu/anon/2008/CMU-CS-08-152.pdf

https://www.owasp.org/index.php?title=Attack_Surface_Analysis_Cheat_Sheet&oldid=156006