https://www.linkedin.com/pulse/how-reset-password-cisco-catalyst-3850-emma-lee

https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3750-series-switches/prod_white_paper09186a00801b096a.html

https://supportforums.cisco.com/discussion/11920586/how-turn-ip-http-secure-server-cisco-3850

How to Enable Telnet and SSH on Cisco Router and Switches?

http://www.rmalekghasemi.ir/file/PRTG 17.zip

https://www.incognito.com/tips-and-tutorials/faq-bandwidth-monitoring-with-ipdr

https://technet.microsoft.com/en-us/library/cc958821.aspx

https://www.rootusers.com/loading-different-website-content-based-on-country-with-geodns

How to Install and Configure GeoIP and mod_geoip on CentOS Server via Command Line and cPanel/WHM

sudo yum install GeoIP GeoIP-data
 geoiplookup 8.8.4.4

http://drpeering.net/AskDrPeering/blog/articles/Internet_Service_Providers_and_Peering___Peering_Policy.html