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Title: CompTIA Network+ - Protecting Networks
Description: CompTIA Network+ certification notes. Notes also work for any general networking class.
Description: CompTIA Network+ certification notes. Notes also work for any general networking class.
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Threats
Friday, January 08, 2016
8:14 AM
Virus
A bad program that does two things: Make copies of itself, and activates
...
Malware
Software that slows systems, generates popups, and causes general havok
...
The
most common form of attack; uses malformed ICMP packets
...
Often coming from
unaware infected computers, or "Zombified" computers
...
Often the
spoofed source address is the target's IP address itself
...
Protecting Your Network Page 1
Social Engineering
Friday, January 08, 2016
8:15 AM
Dumpster Diving
The most common form of Social Engineering, use a shredder to protect against
this
Shoulder Surfing
Looking over others shoulders while they're on their computers
...
Social Engineering The application of sociology principles to specific social problems
...
- Spear Phishing: Targeting a single person
...
Protecting Your Network Page 2
Access Control
Friday, January 08, 2016
8:15 AM
Firewall Software that is designed to protect your system from the internet
...
Example is if it sees a single ICMP packet coming in, it's not going to think anything of it,
But if it sees a lot, its probably going to respond
...
This is
where you can block specific services and IP addresses
...
Stateful firewalls examine each packet to decide which packets should be blocked
...
Protecting Your Network Page 3
Testing Network Security
Friday, January 08, 2016
8:15 AM
Open Ports Ports that are open that are used for services
...
• NMAP / Zenmap
• NESSES
Honeypot A fake server that attracts hackers to monitor what they're doing and keylog their
movements
HoneyNe A fake server emulating a web server that is very advanced that basically exactly imitates
t
the web server, very Expensive
...
) Training and awareness (Don't open Phishing Sites, Shred Documents
...
) Patch Management (Test OS patches first, make sure all systems are running same patch)
3
...
)
4
...
UTM
Unified Threat Management
Protecting Your Network Page 6
Firewalls
Friday, January 08, 2016
8:15 AM
Protecting Your Network Page 7
DMZ
Friday, January 08, 2016
DMZ
8:15 AM
An area of network that hosts public-facing servers
...
Protecting Your Network Page 8
Title: CompTIA Network+ - Protecting Networks
Description: CompTIA Network+ certification notes. Notes also work for any general networking class.
Description: CompTIA Network+ certification notes. Notes also work for any general networking class.