Cybersecurity / InfoSec

What are some attacks on Active Directory infrastructure? Tell about Kerberoasting.

Why is it so important in the Kerberos ecosystem that the client and KDC server are synchronized in time (delta no more than 300 seconds by default)? At what stage is the time check performed?

How do logs get into /var/log as a text file? Describe the chain from source to file.

What magic happens on the switch when an L2 frame exits through a trunk port and an access port? What is Native VLAN?

What is NAT (Network Address Translation) and what global task does it solve? Name the top-3 gray networks that are not routed in the global network.

Tell us about the Golden Ticket attack. What is it about and why is it dangerous?

What does a VLAN look like at the L2 level and what VLAN ID restrictions exist in the 802.1Q standard?

Name the four main tables in iptables (there are five in total). What are the three main chains in the filter table, and what traffic is associated with them?

How many NAT sessions can be initialized on one router?

What would you like to do in the field of information security?

What is VLAN and what tasks does it solve?

On which Linux kernel technologies is containerization built? What are SUID, SGID, and Sticky bit on the file system?

Name a popular or notable vulnerability in the last five years that impressed you, and explain what its exploitation involved.

Tell about your current work experience: role, responsibilities, daily tasks, and project activity.