A Linux program that replies to ping but modifies the payload of the ICMP
packet to get lower ping times in some ping implementations.
See
- https://twitter.com/m_ou_se/status/1480184730058375176
- https://twitter.com/m_ou_se/status/1480184732562374656
- https://twitter.com/m_ou_se/status/1480188334605578242
Install it with cargo install --git https://github.com/m-ou-se/pong.
You either need to run it as root, or you need to disable your kernel's ping
reply with sysctl net.ipv4.icmp_echo_ignore_all=1 net.ipv6.icmp.echo_ignore_all=1
and give this program cap_net_raw capabilities with setcap cap_net_raw=ep ~/.cargo/bin/pong.