SYS 255 Notes 9.5.2023 - Hsanokklis/2023-2024-Tech-journal GitHub Wiki

Microsoft Active Directory

  • Critical for infrastructure
  • Its your admin power stuff

Active Directory

  • When you install AD you get a free DNS server
  • AD needs DNS to function
  • managing the classes within an object

Domain

  • the jurisdiction in which resources fall under ----> google or chaplain is a domain
  • The back row of the SYS classroom is a domain and all the students sitting in the back row fall under the domain

Object

  • a data field that has unique attributes and behavior

DNS- Domain Name system

  • name resolution, putting an IP address to a name
  • example: contacts in ur phone, know the name not the number

DNS records

  • A record - Name to IP address (95% of all your browsing is A record)
  • www record = web server IP (if we had a web server in our environment, www is telling dns to look for the IP addresss)
  • mx (mail exchange)
  • A, WWW, and Mx all are going FORWARD
  • PTR is a pointer record ---> IP to name (its going BACKWARDS)

Lab notes:

_In the lab you will see 2 zones, with a forward lookup zone and then the PTR in the reverse look up zone

  • server manager found in the AD01 - makes configuration easier

Steps for setting up a box

  • Cabling

  • Configuration

  • Network Connectivity

  • add a role in windows for AD, ADDS etc

Promote the server to the domain server

  • the instant you take a server and make it a domain server you are promoting it
  • AD, users, computers, policies
  • when we are domain we have a domain!!!
  • Domain controller that is hosting AD (it is not local to the account its local to the Domain)

AD01

  • Local Admin (default)
    • Loc
    • Domain Admin

Wk01

  • Local Admin (default)
    • Loc

YOU HAVE TO ADD TO THE AD (join to the domain)

  • need to ask to join the domain (the workstation will ask the domain server)
  • once you are allowed in you are now joined to the domain
  • how do you want me to log in? (L.A, -loc, D.A), if you don't tell it where to go it will go to the default.

Focusing on DNS

  • have to provide it records - A record and a PTR record
  • You have to do 3 names because you have 3 devices (3, A records, Wk01, FW, AD01)
  • Three A's and Three Pointer records
  • create 2 domain users in your domain (name-reg and name-adm)
  • have to add them to the domain admin group