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Quontra solutions Network Security http://www.quontrasolutions.com Call us : (404)-900-9988
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Network Security Security Devices Firewalls Network Access Security User Authentication Device Security Common Security Threats
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Security Devices Explain the function Of Hardware and Software
security devices.
Network Based Firewall – Host Based Firewall – IDS – IPS – VPN Concentrator –
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Host Based Firewall Software Based Protection on a device Sees all the Traffic Difficult to manage
large groups
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Windows Firewall with Advanced Security
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Network Based Firewall Filters Traffic By Port Number Can Encrypt traffic in/out of the network. Can proxy traffic Most firewalls can be Layer 3 devices (routers).
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Network Based Firewall Advantages Protects many devices at once High-speed
Disadvantages Limited Visibility into encrypted Information
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IDS/IPS Intrusion Detection System Intrusion Prevention System Intrusions Exploits against Operating Systems , applications etc. Bufferoverflows and other vulnerabilities
Detection Vs Prevention Detection – Alarm or Alert Prevention – Stop it before it gets into the network.
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IDS/IPS Advantages Watches all traffic through a network link Can completely stop bad traffic
Disadvantages Limited Visibility into encrypted Data Yet Another device on the Network
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VPN concentrator
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Identify Common Security Threats and Mitigations Security Threats Dos ,viruses, worms ,attackers ,Man in the
middle attack ,Smurf ,Social engineering (phishing)
Mitigation Techniques Policies and Procedures ,user training ,patch
and updates
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Denial Of Service Anything that prevents a device from providing normal services DoS /DDoS Denial Of Service /Distributed Denial of service
Smurf Attacks Ping sents to a broadcast address were duplicated to all IP
addresses on the subnets by the routers
We fixed that in 1999
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Viruses and Worms Viruses infect files and duplicate by copying
themselves with other documents
Worms don’t need any other files or programs in
order to infect other devices
Malware is a catch-all term for viruses ,spywares ,
adwares ,worms and other bad stuff
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Man in the Middle Attack ď‚— A form of electronic eavesdropping ď‚— Especially useful for encrypted communication
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Man in the Middle Attack ď‚— A form of electronic eavesdropping ď‚— Especially useful for encrypted communication
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Social Engineering Major Threats Electronically Undetectable
Suspicious Telephone Call Don’t give any information over the Telephone
Look out for unattended persons Badges Processes
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Phishing ď‚— Electronic Version Of Social Engineering
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Mitigation Techniques Policies and Procedures User Training Patches and Updates
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Summary DoS (Denial Of Service) or DDoS (Distributed DoS)
prevent a device from providing normal services.
Man in the Middle Attack method can hackers use to
intercept encrypted communication between stations
Phishing is the electronic method of social engineering to
gather personal information.
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To Know More In-depth Knowledge Contact us
Quontra Solutions Call : (404)-900-9988 Email: info@quontrasolutions.Com http://www.quontrasolutions.Com
www.quontrasolutions.com
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