TryHackMe — Security Engineer: Secure network Architecture Walkthrough

Huy Phu
2 min readOct 13, 2023

Network Segmentation

  1. How many trunks are present in this configuration?
    Trunks is a connection between router and a switch
    In VyOS, trunks are configured as bridges. Based on the configuration, we see there are 4 Bridges. Hence the answer is 4
    -> Answer: 4
  2. What is the VLAN tag ID for interface eth12? We can easily see the VLAN tag ID for interface eth12 is 30
    -> Answer: 30

Common Secure Network Architecture

  1. From the above table, what zone would a user connecting to a public web server be in?
    -> Answer: external
  2. From the above table, what zone would a public web server be in?
    -> Answer: DMZ
  3. From the above table, what zone would a core domain controller be placed in?
    -> Answer: Restricted

Network Security Policies and Controls

  1. According to the corresponding ACL policy, will the first packet result in a drop or accept?
    According to the ACL Policy1, all traffic from subnets of 10.10.212.0/24 will be permitted. Therefore, the first packet will be accepted.
    -> Answer: accepted
  2. According to the corresponding ACL policy, will the second packet result in a drop or…

--

--