created: 20230207184928180 creator: Octt modified: 20230608140722019 modifier: Octt tags: Internet title: ping <<^wikipediaframe ping_(networking_utility) en>> * [[Ping "DUP!"|https://askubuntu.com/a/970492]] --- It's something that can happen when seeing data with `ping`: a packet gets corrupted somewhere in the way and a duplicate ping packet is received. Not dangerous unless it happens very frequently.
``` $ ping example.com PING example.com [...] 64 bytes from [...]: icmp_seq=1 [...] 64 bytes from [...]: icmp_seq=1 [...] (DUP!) 64 bytes from [...]: icmp_seq=2 [...] ```