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

Detect time 2025-05-13 22:18:29
Detect client IP 10.152.1.112 (x-forward-for : 18.117.129.72 )
Detect URL http://yeon.naeiljob.co.kr/data/openlecture/5_p_lec_place_off_03