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Anti-Virus
Anti-virus
Software that provides software security functions
Scans file system for threats
Known virus code (virus index approach)
Have to identify threat first
Have to update index on a regular basis
Polymorphic viruses can beat this
Monitor software for suspicious behavior
Requires express user approval
Desensitized clicking
Drawbacks of anti-virus
System performance
Scanning = system resources
CPU, RAM, Non-volatile memory
Conflict with other anti-virus software
Cycle of anti-virus seeing the other malware
Firewall
Firewall- barrier to stop the spread of a fire
Software/hardware- Settings on user software for routers/switches
Used at connection points between networks
Packet Filtering- allows packets that meet
protocol settings
Proxy- server acts as gate-keeper between websites and requesting clients
Pack Sniffers
Allows a client to save packets traveling through
Specific- IP, protocol, time
Allows for a copy of the transmitted data
Sniffing at high levels- ISP level, could track all of internet traffic for a particular IP address
Low-levels- you can monitor what your children are viewing
Firewall Configuration
IP- sets traffic that goes to a particular client
content, data amount, time
Domain names- can deny or allow traffic based on domain
Protocols- allows/disallows entire protocols
IP- Internet Protocol
HTTP: Hypter-text Transfer Protocol
UDP- User Datagram Protocol
ICMP- Interent Control Message Protocol
POP- Post Office Protocol
Using Anti-Virus
Free/Pay
Regular Updates
Automatic updating
Run one anti-virus software
Remain critical of web content