ADS Roles

:
1, Forest Roles 2, Domain Roles
I. Forest Roles:
a. Domain Naming operation Master (DNOM)
It will maintain a unique domain name
Start – programs – admin tools – ads domain & trusts – open ads domain &trusts – set operation master it displays the domain naming operation master.
b. Global catalog master (GCS)
Total information about the domain and partial information of replications.
Start – programs – admin tools –ads sites &services – open services
Open default first site name – open computer name – r+click on ntds settings – go to properties – displays the gcs with checkbox.
c. Schema master
System is having own attributes to enable and disable all this done will be in the schema master.
Start- run – type ‘regsvr32 schemmgnt.dll” display the schema registry information click – ok. After that go to start – run – mmc – click on the add button &select schema , click adding close the folder – ok. It displays the close attributes.

II. Domain Roles
a. Rid master
Start – programs – admin tools –ads users & computers – open ads users &computers – r+click the domain name & select operation master.
b. Pdc master
Start – programs – admin tools –ads users & computers – open ads users &computers – r+click the domain name & select operation master.

c. Infrastructure master

ADS Backup:
Start- programs- accessories – system tools - backup
Backup files are: 1, Ads 2, sys vol 3, boot files (boot.ini) 4. com+reg 5. Registry

Minimum Requirement of ADS:
1, static ip 2, 256 Ram 3, stand alone pc 4, 2003 serve cd

ADS work with LDAP protocols (389)
C:\windows\sysvol:- servers copy of the domains public files
C:\windows\ntds:- ADS database and log files.

ADS versions’: 2000 serve 1.0 2003 server 1.1

In ADS when ever u r creating a user account it will create a unique identifier (sid) this is called security identifier



ADS are having 2 elements:
1. Logical elements
Domain, Trees, Forest, organization units
2. Physical elements
Sites and services, domain controller

Classes and Types in win 2003 server

1, standard class 2, Abstract class 3, Auxiliary class 4, 88 class

Crating Application Data part ion:
Run – cmd – ntdsutil - domain management – connection – connect sever
Create NC application directory portions
Delete NC application directory portions
Role Transferring:
Start – programs – Admin tools – ads users & computers – India.com – r+click operation master – rid+pdc, infrastructure.
ADS Database:
NTDS.Dit – 16 mb each user 1 kb max 16 million users
(New technology directory service. Directory information tree
SAM – 40 mb
Group:
A group consist of users accounts, computer & groups it self.
1, domain local group 2, global group 3, universal group
Group policy stored at system root/ sys32.G.P

Domain controller: it contain rewritable copy of the ADS database
Name Space: A collection of resources using common name is called name space
ex: India.com

DNS (DOMAIN NAMING SERVICE - {53} Roles :

1. Disable Resurrection
2. Bind secondarys
3. Fail load if bad zones data
4. Enable round robin
5. Enable net mask ordering
6. Secure cache against pollution
DNS queries:
1, Recursive query - DNS to client
2, Interactive query - DNS to DNS
DNS Zones :
1. Forward lookup Zone – it resolves ip address to host name
2. Reverse lookup Zone - it resolves host name to ipaddress

1, Primary Zone 2, Secondary one 3, Stub zone

DNS Managing or trouble shoot:
1, ns lookup
2, ip config/ all
3, Ipconfig/flush dns
4, ipconfig/Display dns
5, ipconfig/event viewer
OSI Layers: {APSTNDP}
1, Application Layer
2, Presentation Layer
3, session Layer
4, Transport Layer
5, Network Layer – Router (Layer 3)
6, Data link Layer – Switch (Layer 2)
7, Physical Layer - Hub (Layer 1 )
TCP/IP Layers { ATIDP} A protocol is a set of rules that governs data communication
1, Application layer
2, Transport Layer
3, Internet Layer
4, Data-link layer
TCP/IP Responsibilities:
1. Opening and closing sessions
2. Packet management
3. Flow control
4. Error detection and handling
IP Range:
Class A – 0- 127
Class B – 128-191
Class C – 192- 224
Class D – 225-249 – Research and development
Class E – 250-255 - Research and development
System Boot Files:
1. NTLDR – system procedure
2. BOOT.ini - Boot configuration
3. NTDETECT .com – gathering hardware
4. NTBOOTDD.sys – system devices
5. NTUSER – user profile
6. IO.sys
7. Config.sys
DHCP (Dynamic Host Control Protocol) Backend process {DORA}
D- Discover
O-offer
R- Request
A- Acknowledgement

Backup Types:
1, Normal
2, Incremental
3, Deferential
4, copy
5, Daily
PORT Numbers:
IP – 0 DNS –53 ICP - 1494
DHCP – 67 ICMP – 1
TCP – 6 HTTP – 80
IGRP – 9 EIGRP – 88
UDP - 17 OSPF - 89
FTP – 21 POP3 – 110
TELNET - 23 RPC – 111
SMTP – 25 L2TP - 115
RDP – 27 NNTP - 119
IPV6 - 41 LDAP –389

Private ip - for organization use
Public ip – we have to buy from isp’s

What is the NAT (Network Address Transfer?)
Net is used for difference n/w such as public network to private network, private network to public network.
To binding the ip address private to public ip
Ras: Remote administration server
It provides communication between client and server through telephone line across the world
PPTP – It supports homo genius O.S
L2TP – It supports hetro genius O.S
Private and Public Ip address?
Private ip is come in the form of classes non-routable ip address, these type of address are using with in the organization.
Private ip ‘s used on the internal network
External ip address obtained from an isp, that will allow traffic out to the internet