nanog mailing list archives

Re: Disaster Recovery Process


From: jim deleskie <deleskie () gmail com>
Date: Tue, 5 Oct 2021 19:09:18 +0200

World broke.  Crazy $$ per hour down time.  Doors open with a fire axe.
Glass breaks super easy too and much less expensive then adding 15 min to
failure.

-jim

On Tue., Oct. 5, 2021, 7:05 p.m. Jeff Shultz, <jeffshultz () sctcweb com>
wrote:

7. Make sure any access controlled rooms have physical keys that are
available at need - and aren't secured by the same access control that they
are to circumvent. .
8. Don't make your access control dependent on internet access - always
have something on the local network  it can fall back to.

That last thing, that apparently their access control failed, locking
people out when either their outward facing DNS and/or BGP routes went
goodbye, is perhaps the most astounding thing to me - making your access
control into an IoT device without (apparently) a quick workaround for a
failure in the "I" part.

On Tue, Oct 5, 2021 at 6:01 AM Jared Mauch <jared () puck nether net> wrote:



On Oct 4, 2021, at 4:53 PM, Jorge Amodio <jmamodio () gmail com> wrote:

How come such a large operation does not have an out of bound access in
case of emergencies ???



I mentioned to someone yesterday that most OOB systems _are_ the
internet.  It doesn’t always seem like you need things like modems or
dial-backup, or access to these services, except when you do it’s
critical/essential.

A few reminders for people:

1) Program your co-workers into your cell phone
2) Print out an emergency contact sheet
3) Have a backup conference bridge/system that you test
  - if zoom/webex/ms are down, where do you go?  Slack?  Google meet?
Audio bridge?
  - No judgement, but do test the system!
4) Know how to access the office and who is closest.
  - What happens if they are in the hospital, sick or on vacation?
5) Complacency is dangerous
  - When the tools “just work” you never imagine the tools won’t work.
I’m sure the lessons learned will be long internally.
  - I hope they share them externally so others can learn.
6) No really, test the backup process.



* interlude *

Back at my time at 2914 - one reason we all had T1’s at home was largely
so we could get in to the network should something bad happen.  My home IP
space was in the router ACLs.  Much changed since those early days as this
network became more reliable.  We’ve seen large outages in the past 2 years
of platforms, carriers, etc.. (the Aug 30th 2020 issue is still firmly in
my memory).

Plan for the outages and make sure you understand your playbook.  It may
be from snow day to all hands on deck.  Test it at least once, and ideally
with someone who will challenge a few assumptions (eg: that the cell
network will be up)

- Jared



--
Jeff Shultz


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