2.4 – Services Provided by Networked Hosts Flashcards
DNS
Domain Name Service
a. Translates domain name to IP address
b. EX: Google.com to IP address
DHCP
Dynamic Host Configuration Protocol
a. Gives out IP addresses on a network
Fileshare
Shares files & folders on a network
Print Servers
Share printers
Mail Servers
Allows users to connect, send & receive emails
Syslog
a. Receives logs from devices in a network
b. Analyze it all in a central location
Web Servers
a. Serves web pages using the HTTP / HTTPs protocol
b. EX: Google / Amazon
Server Roles
Authentication
Authorization
Accounting
Authentication
o Ensures you are the correct person
o Uses password, key cards, biometrics
Authorization
o Ensures you can access the right data [what can you access]
o Usually done with file permission
Accounting
o Keeps track of what users are doing in their network
Internet Appliances
Spam Gateway
UTM
Load Balancers
Proxy Servers
Spam Gateways [Software]
Prevents spam from entering email
UTM
Unified Threat Management [device]
o Combination of anti-malware, firewall & IDS
o IDS = Intrusion Detection System
Load Balancers
o Gets all data & distributes it
o Allows multiple servers to be served the same amount of traffic
