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

Detect time	2026-04-01 08:38:54
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-1bf9c3fe1f1744d2ade35500d8449a02.do