Virtual private networks provide two important network security functions to IT administrators. First, they allow the secure interconnection of remote networks, such as connecting branch offices to a corporate headquarters or each other. Second, they provide mobile workers with a mechanism to securely connect from remote locations back to the organization’s network. In this video, learn the purpose of virtual private networks (VPNs), the IPsec protocol ,and the role of VPN concentrators.
- [Instructor] Virtual Private Networks,…or VPNs,…provide two important network security functions…to IT administrators.…First,…they allow the secure interconnection of remote networks,…such as connecting branch offices…to a corporate headquarters,…or to each other.…Second,…they provide mobile workers with a mechanism…to securely connect from remote locations back…to the organizations network.…VPNs work by using encryptions to create a virtual tunnel…between two systems over the internet.…
Everything that enters one end of the tunnel is encrypted…and then it is decrypted when it exits the other end…of the tunnel.…From the users perspective,…the network appears to function normally.…But if an attacker gains access…to traffic between the two secure end points,…all they see is encrypted information that they can't read.…VPNs require an Endpoint on the remote network…that accepts VPN connections.…Many different devices may serve as VPN Endpoints,…such as a firewall,…router,…server,…or a dedicated VPN concentrator.…
All of these approaches provide secure VPN connections,…
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- TCP/IP networking
- Network security devices
- Switches and routers
- Content distribution networks
- Storage networks
- Securing networks
- Network attacks
- Wireless networking and security
Skill Level Intermediate
Q: This course was updated on 07/27/2018. What changed?
A: New videos were added that cover network relationships and security device placement.
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Intermediate
Networks and communications1m 31s
1. TCP/IP Networking
2. Network Security Devices
3. Designing Secure Networks
4. Specialized Networking
5. Secure Network Management
6. Network Attacks
7. Wireless Networking
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