The request / response that are contrary to the Web firewall security policies have been blocked.

Detect time	2026-04-01 08:40:31
Detect client IP	172.17.73.9 (x-forward-for : 216.73.216.41 )
Detect URL	http://www.greendaero.go.kr/svc/common/board/img/att-142775fca1fa4adfa7febe87816a86fc.do