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Chaper 7 - Coggle Diagram
Chaper 7
Load Balancers
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Layer 7 load balancers - Distribute requests based on data found in Application layer protocols such as HTTP
technique
Layer 7 load balancers also can use HTTP headers, cookies, or data within application message itself to make decision on distribution
Security
- Load balancer can be used detect and prevent denial-of-service (DoS) and protocol attacks that could cripple a single server
- Some load balancers can hide HTTP error pages
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Proxies
- Person who authorized to act as substitute or agent on behalf of another human
Proxy server
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- If previous request has been fulfilled a copy of Web page may reside in proxy server’s cache
- If not, proxy server requests item from external Web server using its own IP address
Advantage
- Increased speed (requests served from the cache)
- Reduced costs (cache reduces bandwidth required)
- Improved management - Block specific Web pages or sites
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UTM
- Security product that combines several security functions
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Virtual Vlan
VLAN allows scattered users to be logically grouped together even though physically attached to different switches
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Network Security Posture
Yet having secure network is essential to comprehensive information security posture.
-Attacker who can successfully penetrate computer network may have access to thousands of desktop systems, servers, and storage devices
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