Tootfinder

Locked myself and everyone else out of a production mail machine for ~20 seconds today because ipfw did *something* that knocked all the rules out except for the default deny.
2 hours later I’m still mystified. I re-did everything I was doing before it died and it did not recur. I have nowhere else to look. I will never know.
But I sure am glad that I added the watchdog that kills the fw when it's working too well.

Why is there no scanf(1)?
#Sysadminnery

In case you were wondering: no, it is NOT safe to do an unconstrained zfs send of the root filesystem to a vmhgfs-mounted filesystem.
#Sysadminnery

I'm not pleased with what is being done to most tasks here, but I do love total perfect CPU utilization...
#FreeBSD #Sysadminnery

A bit of actually helpful #Sysadminnery...
So, you don't have a DBA on staff because the databases you "administer" are all designed by external app developers and a DBA would have no work? Your databases have been running w/o intervention for years, aren't generating errors? Getting used to everything kinda running slow?
Schedule an annual date to do the equivale…

I built most of my #Sysadminnery finger memory in commercial Unices. Some of that stuff just never goes away. I can't give up netstat and ifconfig either.
More correctly: nets<TAB> and ifco<TAB> https://

Customer just asked us to upgrade-in-place their 12yo RoR-based PM app currently running on Ubuntu 12.
Not looking forward to this fun.
#Sysadminnery

I just noticed the existence of mod_md for httpd. That's cool. I wonder if I can make it work.
I hate Certbot and am getting to hate acme.sh
#Sysadminnery #WebPoking #InfoSec

Fucking Equinix is so damn thirsty.
Apparently they noticed hostility in my latest response to their idiotic survey spam and so what did they do?
They had a putative human write me to ask for MORE of my time to help them do marketing.
I hope I ruined that human's afternoon. It's only fair.
#Sysadminnery

writing json by hand in a janky Java console to get a network working is what I live for.
#Sysadminnery

6 years and I'm still stumbling across stupid crap done in my hiatus.
E.g. someone partly disaggregated a system of shared SSH configs and keys such that when I made one change needed for slow-rolling updates across 3 dozen intimately interoperating physical hosts, it created a nightmare.
So now I rebuild what I did in 2016. At least I documented it, so it took far less time to fix than to diagnose.

Oh thank you #Microsoft, for noticing 3 hours after you started to break #azure compute for the USGov VA zone that the change was going sideways, and alerting us that you’ll update us in a couple more hours.
Working hard to shed that third 9