Re: [tlug] System Administration exercises

[Jonathan Q <jq@example.com>]

On Friday 23 May 2003 17:10, Pietro Zuco wrote:

> system administration, but I didn't find exercises. I mean usefull
> exercises, because everyone can playing with commands

I think that's in (large) part b/c the only way to really be a sysadmin
is just to be one :-)

However:

Find some willing network of W2K machines and set up a Linux
box as a PDC using Samba.

Replace your router with a Linux box, if you haven't already.
If you have, build a 3-node OSPF network in your den using
Linux boxes.  If you've been-there-done-that, build a mutli-area
OSPF network using Linux boxes.  If you've done that too, run
authenticated OSPF on it.

If you're still yawning, split the up the OSPF network into three
different ASes and run BGP between those three.  If you've
done that too, make your boss give you a raise :-)

Since you've got this nice BGP network going, run some VPN
tunnels between boxes in at least two of those ASes.

If that worked, put NATting firewalls in front of the VPN clients
and see if you can keep them working.

Go back to clients in those networks and have them mount
some of their filesystems by NFS.  When you feel good about
that, makes some of them diskless workstations and boot over
the network.

Invite some script kiddies to come over with their computers and
try to break into those networks from a fourth AS which you
set up and which contains only their machines.  If they succeed,
fix it, tighten it up, and invite them back.  When they fail, invite
some real crackers to try the same thing (note: they'll probably want
money for it :-)

Use all of this knowledge to get a really high-paying job :-)

Finally, sell all of the hardware b/c the electric bills will be killing
you :-)

Jonathan "I don't claim to be able to do all of that stuff myself" Q
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