Monday, April 13, 2015

Common Network Protocols - CompTIA A+ 220-801: 2.4

DHCP (Dynamic Host Configuration Protocol)
  • Automated configuration of IP address subnet mask and other options.
    • Requires a DCHP server
      • Server, appliance, ect
  • Dynamic
    • IP addresses are assigned in real time from a pool.
    • Each system is given a lease and must renew at set intervals
  • Static
    • Addresses are assigned by MAC address in the DCHP server
    • Quickly readdress serv ers from one location
DNS (Domain Name Services)

  •  Converts names to IP addresses
  • These are very critical resources
    • IF DNS isn't working, you're not working.
  • Protocol for reading and writing, directories over an IP network.
    • An organized set of records, like a phone directory
LDAP (Lightweight Directory Access Protocol)

  • Protocol for reading and writing directories over an IP network
    • An organized set of records, like a phone directory.
  • X.50 specification was written by the international Telecommunications Union (ITU)
    • They know directories!
  •  DAP ran on the OSI protocol stack
    • LDAP is lightweight, and uses TCP/IP (tcp/389 and udp/389)
  • LDAP is the protocol used to query and update an X.500 directory
    • Used in Windows active Directory, Apple Open Directory, Novell eDirectory, ect.

X.500 Distinguished Names
  • attribute= value pairs
  • Most specific attribute is listed first
    •                 This may be similar to the way you already think