======Networking======
  * [[Network Administration]]
  * [[DNS]]


======Tools and Utilities======
  * [[http://www.ipaddressguide.com/cidr|CIDR Calculator]]
  * [[http://cidr.xyz/|cidr.xyz]], CIDR calculator/visualizer
  * [[http://www.davidc.net/sites/default/subnets/subnets.html|Visual Subnet Calculator]]

  * [[https://digwebinterface.com/]]
  * [[https://toolbox.googleapps.com/apps/dig/]]

======Resources======
    * [[https://tls.ulfheim.net/|The Illustrated TLS Connection]], packet level details of TLS handshake
    * [[http://www.firewall.cx/|Firewall.cx]]