[root@ /]# ipchains -L
Chain input (policy ACCEPT):
target prot opt source destination ports
DENY tcp ------ anywhere 도메인.co.kr any -> telnet
Chain forward (policy ACCEPT):
target prot opt source destination ports
MASQ all ------ 192.100.10.0/24 anywhere n/a
Chain output (policy ACCEPT):
target prot opt source destination ports
ACCEPT icmp ------ 211.196.8.7 anywhere destination-unreachable
ACCEPT icmp ------ 211.196.8.7 anywhere source-quench
ACCEPT icmp ------ 211.196.8.7 anywhere echo-request
ACCEPT icmp ------ 211.196.8.7 anywhere parameter-problem
위의 내용들이 뭐지요??? 설명좀 간단하게 부탁합니다.