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Networking Concepts Lesson 09 part 1 - Complex Networks - Eric Vanderburg
- 2. Multivendor Solutions
Client
Based
Separate redirector for each vendor
Clients ship with vendor’s redirector
Server
Based
Gateway Services for Macintosh
File & Print Services for Macintosh
Gateway Services for UNIX
Gateway Services for Netware (GSNW)
Internet
utilities are essentially cross-platform
Networking Concepts – Eric
Vanderburg ©2005
- 3. Multivendor Solutions
File
& Print Services – Taking windows
shares and making them look like shares
for another OS.
Gateway – Making other OS shares look
like Windows shares.
Networking Concepts – Eric
Vanderburg ©2005
- 5. Netware
IPX/SPX
and client software needed
Versions 5 and above use TCP/IP &
require the newer Novell client
(downloadable)
Networking Concepts – Eric
Vanderburg ©2005
- 6. UNIX
DOS
clients need UNIX interface (Sun
uses PC-NFS)
Samba
NFS – NFS volumes mounted like
mapped drives (called a mount point)
Networking Concepts – Eric
Vanderburg ©2005
- 8. Portables
Palm
& Pocket PC
Wireless connection or cable with periodic
sync
Move from WEP to WPA (WiFi Protected
Access) / WPA2
Improved data encryption through the TKIP
(Temporal Key Integrity Protocol). TKIP scrambles
the keys using a hashing algorithm and, by adding
an integrity-checking feature, ensures that the keys
haven’t been tampered with.
User authentication, which is generally missing in
WEP
Networking Concepts – Eric
Vanderburg ©2005
- 9. Terminal Services
Massive
network traffic
Screens sent back and forth continuously
Keystrokes generate traffic
Cheap
clients – thin clients
Expensive server (mainframe)
Increased client security
Remote Administration
Windows, Citrix
Good for mobile devices – Telxon
Networking Concepts – Eric
Vanderburg ©2005
- 11. Requesting Data
1.
2.
3.
4.
5.
6.
User requests data
Client translates into SQL
SQL request sent to the server
Server processes the request
Results sent back to client software
Results presented to the user
Networking Concepts – Eric
Vanderburg ©2005