SpaceLifeForm

ICMP ping is useless for decades now.

Except on your LAN.

Dec 5 at 2:44amWeb
Show threadR.L. Dane    🍵 Dec 5

@SpaceLifeForm

I use ping 1.1.1.1 as a connection test and to log my ISP's downtime

Show threadDougMerritt (log😅 = 💧log😄)Dec 5

@rl_dane @SpaceLifeForm
Same here.

So it's an overstatement, but there's also truth to it. Originally it was far more widely useful than it is today.

BTW different systems that I use seem to vary as to whether ping must be run as superuser (the others probably have the su-bit set), but someone posted yesterday about some hack to build and send ping packets without needing to be superuser.

Go figure.

Show threadSpaceLifeFormDec 5

@dougmerritt @rl_dane

Because upstream drops ICMP ping packets, your best option is to use UDP packets to high random port numbers.

Show threadSpaceLifeFormDec 5

@rl_dane

That is a sneaky use case. Well played. Your winnings sir.