I am passionate about debugging and debuggers since, well, forever. When I started working with PHP many many years ago this was the one thing that truly bothered me - there was no “native” way to debug the code interactively. Then I discovered Xdebug.
On a nice May day, we spent a whole day going through Elastic APM Go Agent code, to try to figure out why it doesn't log Spans, and all Transactions of a certain kind are just always not sampled.
Once again, because wrote our own Elastic APM PHP Agent, we got bit in the behind and spent a better part of the day WTF-ing through all the code, just to switch ONE BIT in the end, to solve the issue.
So you got an idea, or better somebody made you, migrate from a cosy EMC NFS server to a Windows Failover Cluster with File Server role serving NFS to Linux clients.
Santa's IT department has recently discovered the power of version control software. However, they are not prepared for such power and have made a critical flaw… Can you find the flag?
Santa forgot his password for the application he likes to use, but he found this old binary that contains the password. Can you help him retrieve it?
Santa’s elves fixed some formatting errors from the old app, but he might have introduced some new bugs. Can you find them?