meaning of those message in weird.log

Zeek
1

Hello evry body,
I am doing a test in the detection of attack by bro sometime i have those message in the weird.log i want to know what the mean and what can be the cause of those message.

pleaz i want know what mean those n
dns_unmatched_msg
bad_TCP_checksum
truncated_tcp_payload

TCP_ack_underflow_or_misorder

inappropriate_FIN
dns_unmatched_reply
above_hole_data_without_any_acks

window_recision

Thanks

2

i would also like to know what is the meaning of emailing a new user

their password in plain text? this happened.

i hope people aren’t depending on this system for anything serious, because

if that password was sent once like that, it could be a habit.