Network Servieces Flashcards
DNS Server
Domain Name System
-Converts name to IP addresses
Distributed naming system
-The lead is balanced across many different severs
Usually managed by the ISP or enterprise IT department
- A critical resource
DHCP Server
File Server
print Server
Mail Server
Syslog
Web Server
Authentication Server
Login authentication to resources
-Centralized manafement
Almost alays an enterprise sevices
-not Required on a home network
Spam
Unsolicited Messages
-Email, Forums, ETC.
Various content
- Commercial proselutzying
Spam Gateways
Unsolicited Email
- Stop it at the gateway before it reaches the user
All-in-one Secutity Appliance
Next Gen firewall, Unified Threat Management (OTM) / Web security Gateway
URL filter / Contact inspection
Lead Blancers
Distribute the load
- Multiple servers
- Invisible
What are the load blancer features
Configurable load
- Manage across servers
TCP offload
- Protocol overhead
SSl Offload
- Encryption/ Decrypation
Procy Server
An intermediate Server
-Client makes the request to the procy
- the procy prefome the actuall request
-
SCADA / ICS
PC manages eqquipment
Legacy and Embedded Systems
Legacy Systems
- Another Expression for “really old”
-may also be “really important”
- Learning old things can be just as important as learning the new things
Embedded Systems
- Purpose - built Device
- Not usual to have direct access
IoT(Internet Of Things) devices
Appliances
-Refrigerators
Smart devise
- Smart speakers respond to voice commands
Air Control
- Thermostats, Temperature Control
Access
- Smart doorbells
May require a segmented network
- Limit any Security Breaches
