Falsehoods Programmers Believe About LANs

ronsor

> There is one DHCP server. There'd better be or your network is probably hosed.

StilesCrisis

>Two hosts on the same subnet can reach each other without leaving the LAN. Barring "very buggy software," when is this false?

elaida73

This feels like a bastardization of the already questionable "Falsehoods ___ believe about ___" format.

amelius

Falsehood People Believe about Programmers: Programmers think the models they use are perfect.

mitxela

* there is something called a LAN * two people who say they are on the same LAN agree on what the LAN is

unethical_ban

I get the idea, but this isn't necessarily useful as advice and toys with definitions. It's ESPN levels of conversation-baiting. Lots of assumptions can be reasonably made about residential LANs without being true of enterprise LANs/DMZs. If a residential LAN is RFC1918 and has no NAT, then it is still a LAN... without internet access. Then the "A & !A" fallacy of "MAC addresses can’t be changed. MAC addresses can be changed." Just kind of a mess. Would be more interesting to explore the edge cases rather than throw out half-truths and 0.05% instances. I like the GNOME 2006 era though.

LoganDark

> My LAN uses IP addresses. I've never heard of a LAN without IP addresses. Is that a thing? I'd assume that no IP addresses means you can't even use TCP/IP at all, right? Is there something else you'd use instead?

suprjami

This just lists every possible configuration permutation. Nothing insightful here.

rayoleary

Nothing burger of a post

AnonC

Some of these seem a bit obscure. I wish the author had given detailed examples or linked to pages with details on the points.