Download Network LANScape

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Wireless security wikipedia , lookup

Peering wikipedia , lookup

Deep packet inspection wikipedia , lookup

Network tap wikipedia , lookup

Dynamic Host Configuration Protocol wikipedia , lookup

Server Message Block wikipedia , lookup

Net bias wikipedia , lookup

Wake-on-LAN wikipedia , lookup

Internet protocol suite wikipedia , lookup

AppleTalk wikipedia , lookup

Lag wikipedia , lookup

Computer network wikipedia , lookup

Recursive InterNetwork Architecture (RINA) wikipedia , lookup

Airborne Networking wikipedia , lookup

Distributed firewall wikipedia , lookup

Piggybacking (Internet access) wikipedia , lookup

Peer-to-peer wikipedia , lookup

Remote Desktop Services wikipedia , lookup

Cracking of wireless networks wikipedia , lookup

Zero-configuration networking wikipedia , lookup

Transcript
Network LANscape
Servers & Equipment Found
In a Typical Local Area Network
(LAN)
By George Squillace
New Horizons of Michigan
MCT, MCSE, MCDBA
MCITP – Database Administration
MCITP – Enterprise Messaging
Building Blocks of a Typical
LAN
Application Servers
Infrastructure Servers
Infrastructure Equipment
2
Infrastructure
Equipment – Part I of
III
Switches
•
•
•
•
Switches replace Hubs
Hubs receive a transmission in one port and retransmit out all other ports
Connect Local Machines on the same “street”
Many available brands
•
•
Can vary in size and complexity
•
•
•
•
•
Cisco is a popular brand
Small
Large, Enterprise Hubs
The elaborate switches require programming, which requires training
Switches use hardware, or physical addresses
Switches still forward broadcast transmissions out every port!
4
Routers
• Comparison:
• Switches connect machines on the same “street”
• Routers connect segments (think one “street” to another)
• Manufacturers
• Cisco
• Windows
• Many Other Vendors
• Routers can be very complex and require programming,
which requires training
• Enterprise Hubs can combine routing and switching
5
Firewall (Routers)
• A device (specialty router) that selectively
permits traffic across its connected networks
• Many available brands
•
•
•
•
•
Cisco PIX
Microsoft ISA Server 2006
CheckPoint
Watchguard
SonicWall
• Can be very elaborate and successful
implementation often requires training
6
WAN Connections
• Provides a connection to a distant,
external network
7
ISP Connections
• Provides a connection to an Internet
Service Provider
• Other services often are added beyond
merely providing a pathway to the Internet,
such as mail services
8
Network Diagram
Router
Network
Printer
Private
Connection
to Branch Office
Switch
Router
Switch
Firewall &
VPN Srvr
Switch
ISP
& the Internet
Web Srvr/
SharePoint
File Srvr
Directory
Srvr
DHCP
DNS
WINS
Infrastructure
Servers
Blackberry
Srvr
Mail Srvr
CRM
and/or
Database ERP
Srvr
Application Servers
9
Infrastructure Servers
– Part II of III
Protocol & TCP/IP Basics
• Before network entities can communicate they
require a common network protocol suite
• Virtually the only LAN protocol suite today is the
TCP/IP suite (Transmission Control
Protocol/Internet Protocol)
• TCP/IP is a complex protocol family and requires
a fair amount of knowledge to implement
successfully
11
DHCP Servers
(Dynamic Host Configuration Protocol)
• A service that provides IP Addresses to
machines as they connect to the network
• No machine on a TCP/IP network can
communicate with other machines unless
it has a unique IP Address
12
Directory Servers
(a.k.a. Authentication Servers)
• Servers must exist in the network that validate
identity of users, computers, and services
• For Microsoft networks, Active Directory Domain
Controllers
• For NetWare networks, eDirectory Servers
• In Unix, NIS Server (Network Information System)
• Multiple Directory Servers may exist in the
network to provide redundancy
13
Name Resolution Servers
• On TCP/IP networks computers use IP Addresses to
connect to other computers and devices
• But humans use friendly names to refer to computers
(see example below)
Used to point friendly names to IP Addresses
• Examples of Name servers
• DNS
(Domain Name System)
• WINS
(Windows Internet
Name Service)
14
Remote Access Servers
• Use for connecting someone on the outside of a corporate network
to enable access of internal resources such as File Servers and
electronic mail
• Examples
• Most firewalls also provide this capability
• RRAS (Microsoft Routing & Remote Access)
• Virtual Private Networks (VPNs) extend remote access and encrypt
the pathway between the client machine and the remote access
server
• Providers of remote virtual desktops, which is an alternae or
additional remote access technology
• Terminal Services
• Citrix Server
15
File Servers
• Use to store corporate/organization
documents and work
• Must be secured
• Must be organized and maintained
• New folders created
• Permissions changed
• Old data removed or migrated
16
Application Servers –
Part III of III
Mail Servers
• Exchange
• GroupWise
• Internet Service Providers may provide:
• SMTP (Simple Mail Transport Protocol)
{outbound} + POP3 (Post Office Protocol)
{inbound}
• SMTP (Simple Mail Transport Protocol)
{outbound} + IMAP4 (Internet Message
Access Protocol) {inbound}
18
Database Servers
•
•
•
•
•
•
Microsoft SQL Server
Oracle
DB2 (IBM)
Informix
Sybase
OpenSource options
• MySQL
• PostgreSQL
19
Web (HTTP) Servers
•
•
•
•
Apache
Windows (IIS)
NetWare
SharePoint is a specialty web server/portal
20
Telephony Servers
• PBX Integration
• Unified Messaging
21
FAX Servers
22
Instant Messaging Servers
23
Network Diagram
Router
Network
Printer
Private
Connection
to Branch Office
Switch
Router
Switch
Firewall &
VPN Srvr
Switch
ISP
& the Internet
Web Srvr/
SharePoint
File Srvr
Directory
Srvr
DHCP
DNS
WINS
Infrastructure
Servers
Blackberry
Srvr
Mail Srvr
CRM
and/or
Database ERP
Srvr
Application Servers
24
Network LANscape
Part II
Courses Applicable to Typical
Infrastructure Servers
& Application Servers
Primary
Infrastructure Equipment
{mostly Cisco} Courses
•
•
•
•
•
•
INTRO to Cisco Networking Technologies
ICND, Interconnecting Cisco Network Devices
BSCI, Building Scalable Cisco Internetworks
BCMSN, Building Cisco Multi-Layer Switched Networks
SNPA, Securing Networks with PIX Firewall and ASA
Microsoft Course 2824B (for ISA Server 2004)
26
Primary
Windows Server Courses for
Infrastructure Servers
• 2274, Managing a Windows Server 2003 Environment
• Directory Services management
• File Server Services
• 2275, Maintaining a Windows Server 2003 Environment
• 2276, Implementing a Windows Server 2003 Network Infrastructure:
Network Hosts
• TCP/IP Networking
• 2277, Implementing a Windows Server 2003 Network Infrastructure:
Network Services
•
•
•
•
DCHP
DNS
WINS
Remote Access
• 2279, Planning, Implementing and Maintaining a Windows Server
2003 Active Directory Infrastructure
• Directory Services installation
27
Primary
Microsoft Application Server Courses
• Exchange
• 2400C Administration (for Exchange 2003)
• SQL Server
• 2780B Database Administration
• 2779B Database Implementation
• BI and many, many other courses
• SharePoint
•
•
•
•
2014
2552
2553
Several others
• SMS
• 2596
• BizTalk
28
Resources
• Microsoft Learning website
• e-Squillace.com website
• e-Squillace.com TechReference home
• e-Squillace.com Diagrams
• Diagram, How Do Computers Find Services on the Network?
29