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Kusalananda

06:14

@JBallin HOMEBREW_UPGRADE_CLEANUP=1

Kusalananda

06:40

@JBallin Ah, but in that particular context (the brew(1) manual), it is assumed that the variable is also an environment variable. So, export HOMEBREW_UPGRADE_CLEANUP=1.

1 hour later…

Kusalananda

08:03

I still would want to reopen unix.stackexchange.com/questions/454343

Faheem Mitha

08:32

Hi folks.

Kiwy

Hi @FaheemMitha

@Kusalananda why's that, seems very unclear what do you understand as a question ?

Faheem Mitha

08:44

Hi @Kiwy.

Archemar

I had fun with internet and traceroute this morning :

traceroute dynv6.com from ubuntu would give 16 Hop,

while same traceroute from rapsian would give 9 ... or 12 !

from same local network at home.

Kiwy

@Archemar I couldn't advise you enough to now use tracepath which is both nicer and more precise and that gives actual real nice information such as asymetrical routing when it happen.

Archemar

tracepath ?

I'll give a try, but that didn't changer weirdness of different route from same endpoint.

Faheem Mitha

@Kiwy What does tracepath do?

Kiwy

@Archemar yes true, but peering between providers can change dramatically also depending on the way weight in routing is calculated you could go through multiple route with each time a different one (though very unlikely because multiple route with the same wieght is a mess) But is weight is for example calculated with average latency between node, going through more node might shorten the path in the end.
Tracepath is the same as traceroute but uses tcp instead and does the route step by step and run in user land, I think traceroute is a root tool

Archemar

09:00

@Kiwy I'll try at home, company's VM and network hide this information. (and there is a icmp or tcp option in traceoute)

Kiwy

Yes true but I found tracepath way nicer and specially the fact that it is able to detect asymetrical routing. I worked at an ISP having this kind of magic at hand without having hand on both side of a line is AWESOME !

1 hour later…

Kiwy

10:28

@StephenKitt hard to argue about Debian with a Debian dev, they tend to know more than you :P

Kusalananda