linux系统关闭禁ping功能sysctl 生效

admin

vim /etc/sysctl.conf
net.ipv4.icmp_echo_ignore_all = 1
4 ^4 j+ P; n6 W( j
6 U( |4 w7 W7 [8 Q2 G4 a" j[root@zsykf-interface-1 ~]# sysctl -p
; A3 r" [1 T  x* `+ y, l2 u/ pnet.ipv4.tcp_syncookies = 1
, Y  t2 _4 t3 w6 Y/ bnet.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
& G1 {4 k8 K% P5 w, cnet.ipv4.icmp_echo_ignore_all = 1
3 s' x% M8 H( K4 A+ k
! K& G9 N, G  |# b) k9 k! c# X+ Y
去ping发现不通了。