intermediate·20 min·Paid

The Config Backup Server Everyone Can Reach

Restrict a file transfer service to the segment that is supposed to use it.

Scenario

The configuration backup server holds a copy of every device config on the network, and it is currently reachable from the user LAN as well as from the management subnet. Nothing has been taken, and the protocol offers no authentication worth depending on. Restrict access to the management subnet, leaving the administrators' own backups working.

Learning objectives

  • ftp
  • acl
  • nftables
  • service exposure

Topology and configuration

This environment contains 4 devices (3 Hosts, 1 Router). You configure and troubleshoot the networking skills listed above.

Curriculum topics

Environment

Subnetica labs run FRRouting and Linux networking with Cisco-like syntax, not Cisco IOS. Commands and behavior may differ from Cisco devices.

Addressing is regenerated on every attempt and the environment is graded automatically.

Certification objectives

  • · Objective
  • · Objective

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