# icmp_echo_ignore_all # default value - 0 # If set non-zero, then kernel will ignore all ICMP ECHO requests sent to it type: txt help: Policy for handling of all IPv4 ICMP echo requests val_help: disable; Disable processing of all IPv4 ICMP echo requests val_help: enable; Enable processing of all IPv4 ICMP echo requests default: "enable" syntax:expression: $VAR(@) in "enable", "disable"; "all-ping must be enable or disable" update: if [ x$VAR(@) == xdisable ]; then sudo sh -c "echo 1 > \ /proc/sys/net/ipv4/icmp_echo_ignore_all" else sudo sh -c "echo 0 > \ /proc/sys/net/ipv4/icmp_echo_ignore_all" fi delete: sudo sh -c "echo 0 > \ /proc/sys/net/ipv4/icmp_echo_ignore_all"