A Distributed Denial of Service (DDoS) attack is an attempt to make an online service unavailable by overwhelming it with traffic from multiple sources.
This is sometimes necessary to look invisible to DOS (Denial Of Service) attackers who use ping to watch your machine and launch an attack when it's presence is detected
The following firewall rules will drop ICMP requests.
- Iptables:
iptables -A OUTPUT -p icmp -d 0/0 -j DROP
OR drop all incoming pings:
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all
This is sometimes necessary to look invisible to DOS (Denial Of Service) attackers who use ping to watch your machine and launch an attack when it's presence is detected
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