Firewalls and network devices are on the front lines of security and their logs contain important information for security professionals. These logs are useful when investigating security incidents, troubleshooting network issues, and monitoring for suspicious activity. In this video, learn the importance of collecting and analyzing network device log files.
- [Narrator] Firewalls and network devices…are on the front lines of security,…and their logs contain important information…for security professionals.…These logs are useful when investigating security incidents,…troubleshooting network issues,…and monitoring for suspicious activity.…Firewall logs are one of the richest possible…sources of information.…When configured properly, firewalls create log entries…for each and every connection attempted on a network,…whether it was allowed or denied.…
The log entry contains quite a bit of useful information,…including details about the attempted connection,…including the source and destination ports and IP addresses,…a timestamp indicating when the connection took place,…and the identity of the firewall rule…that either authorized or denied the connection.…Let's think about some scenarios…where these logs might be very useful.…First, in the aftermath of a security incident…the logs may show all of the connections…attempted on a network.…
This likely includes the connections used…
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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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