Load balancers help web servers scale by distributing the workload among multiple servers. In this video, Mike Chapple explains load balancers, scheduling mechanisms, active/active and active/passive configurations, and the use of virtual IP addresses.
- [Instructor] Load balancers help web servers scale…by distributing the workload among multiple servers.…Basic web server configurations look something like this.…Assigning an IP address to a web server…located on a DMZ network.…Network administrators then create a DNS entry…that ties registered domain name for the server…let's say www.myserver.com…to the IP address of that server.…Then when users type myserver.com into their web browser…they connect to that web server located in the DMZ.…
This works well as long as the web server can keep up…with those requests from users.…Eventually, if the website grows the demand for the content…will exceed the capacity of the server.…Administrators might respond by making the server bigger…but eventually the demand may grow again…requiring a bigger and bigger server.…This approach is not scalable because eventually…administrators won't be able to purchase a bigger server…and it'll also be left with a big pile of unused smaller…servers gathering dust.…
The more efficient way to grow server capacity…
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- IP addresses
- Routers, switches, and bridges
- VPNs and VPN concentrators
- Network intrusion detection and prevention
- Managing secure networks
- Tuning and configuring SIEMs
- Troubleshooting digital certificates
- Personnel, host, and mobile device security
- Mobile device management and tracking
- Securing common protocols
Skill Level Beginner
1. TCP/IP Suite
2. Network Security Devices
3. Managing Secure Networks
4. Wireless Networking
5. Security and Monitoring Technologies
6. Security Assessment Tools
7. Security Troubleshooting
8. Personnel Security
9. Host Security
10. Mobile Device Security
11. Securing Protocols
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