Linux Troubleshooting 101 , 2016 Edition

Back in 2006 I wrote a blog post about linux troubleshoooting. Bert Van Vreckem pointed out that it might be time for an update ..

There's not that much that has changed .. however :)

Everything is a DNS Problem

Everything is a Fscking DNS Problem
No really, Everything is a Fscking DNS Problem
If it's not a fucking DNS Problem ..
It's a Full Filesystem Problem
If your filesystem isn't full
It is a SELinux problem
If you have SELinux disabled
It might be an ntp problem
If it's not an ntp problem
It's an arp problem
If it's not an arp problem...
It is a Java Garbage Collection problem
If you ain't running Java
It's a natting problem
If you are already on IPv6
It's a Spanning Tree problem
If it's not a spanning Tree problem...
It's a USB problem
If it's not a USB Problem
It's a sharing IRQ Problem
If it's not a sharing IRQ Problem
But most often .. its a Freaking Dns Problem !



Wouter Verhelst's picture

#1 Wouter Verhelst : arpv6? erm?

IPv6 doesn't do ARP, it does Neighbour Discovery. They're slightly different, in that the latter doesn't need caches etc, and therefore shouldn't have some of the problems that ARP has...

Kris Buytaert's picture

#2 Kris Buytaert : Crap .. I reordered them

Crap .. I reordered them right before posting .. should have catched that one myselve :)

Updated Ordering :)

Luc's picture

#3 Luc : we mis something

somewhere between Fscking DNS and filesystem we have systemd madness ;-)