Challenge on ,
Identify the Source of Unexpected Requests in an On-Prem Network
An internal service started receiving requests from unexpected IP addresses. Identify the unexpected sources and find out which systems are behind them.
Challenges
Focused, hands-on DevOps and server-side problems with hints, feedback, and automated solution checks.
Challenge on ,
DNS 101: Resolve Public, Internal, and Local Hostnames
Practice manually resolving public domains, internal hostnames, and locally defined names to the corresponding IP addresses so you feel confident next time a DNS issue occurs.