system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] What does Dumbledore do during the events of Chamber of Secrets to stop the attacks or uncover the identity of the attacker?

It seems really strange that a wizard as powerful as he can't manage to surveil his own castle well enough to at least catch the Basilisk  action. This had to be his only concern for months on end, and yet he can't come up with some kind of alert system or booby trap to catch the attacker? Why not thoroughly  question the obviously-not-telling-you-something Harry, or read his mind to see what he knows?
gpt
Dumbledore knew exactly who was opening the Chamber of Secrets: Voldemort. He just didn't know what form he was taking. In particular, he had no idea that a horcrux has been given to a student, bringing her under the control of the ghost of Tom Riddle.

It's also very likely that Dumbledore knew that there was a basilisk in the castle. The petrified students, combined with the fleeing spiders, would have been enough information for him to go on. That means he \*couldn't\* surveil the school for the creature; if he had seen it through his spell, he would have been petrified, and thus taken out of the game.

Also, Dumbledore couldn't enter the Chamber of Secrets himself; that required a parselmouth, someone who could speak snake. Word of God indicates that Dumbledore \*understood\* parseltongue, but could not speak it. That means the Chamber was sealed to him.

So we know a lot about what Dumbledore \*couldn't\* do, but not a lot about what he did. This isn't surprising, because Dumbledore is a wizard, and wizards keep secrets like junkies horde needles. We can speculate, but that's all it would be.