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DHCP Reservation

FortiOS v5.0.x

(2015-01-29) Warning: this method does not work in 5.2 (and presumably higher). config system dhc...

Updated 2 months ago by david

crashlog

FortiOS v5.0.x

(2015-04-22) List the firewall's internal crashlog: # di de crashlog read

Updated 2 months ago by david

arp

FortiOS v5.0.x

(2015-04-20) Show the arp table: # get system arp

Updated 2 months ago by david

DHCP and PPPoE

FortiOS v5.0.x

Problem:        Cannot set mode to DHCP or PPPoE when HA is on. It doesn't work. Note: this is ...

Updated 2 months ago by david

HA Cluster Member Firmware Revisions

FortiOS v5.0.x

(2014-11-20) Verify the firmware versions of cluster members:         fw-ottawa-A # get syste...

Updated 2 months ago by david

Removed Cached HSTS Attributes

Applications Chrome

(2025-07-07) Go to chrome://net-internals/#hsts and put in the zone you want to forget attributes...

Updated 2 months ago by david

Block QUIC in 7.2.x

FortiOS v7.2.x

(2025-07-03) To block the QUIC application signature in the CLI: config application list edit...

Updated 2 months ago by david

PPPoE Session Status

Cisco ASA 9.8

(2021-12-03) Problem What is happening with my PPPoE session? Solution Nothing, probably, but her...

Updated 3 months ago by david

Calculating 95th Percentile

War Stories

(2018-04-05) TL/DR: If you want something done right, you have to check the math and be willing t...

Updated 3 months ago by david

Client DNS Resolver Behavior

Windows Windows 10

How do Windows clients deal with having multiple DNS servers configured? With one server: Seco...

Updated 3 months ago by david

Fire Eater

Hot Wheels Known Wanted

'77 to '91 Shield BW with Hong Kong base Unknown Deco, France base

Updated 4 months ago by david

Super Tuned

Hot Wheels Known Wanted

2005 Wallgreens Battery Exclusive 2007 Car Crusher (allegedly) -- wiki Black and white DC Poli...

Updated 4 months ago by david

Fandango

Hot Wheels Known Wanted

2002 Blue Book allegedly (wiki) there is a variation with a white interior normally the interior...

Updated 4 months ago by david

Five User Experience Principles

War Stories

Five User Experience Principles Keep it simple. But not simpler. Keep scalability in mind. End u...

Updated 5 months ago by david

Hardware or Software RAID?

War Stories

The question is usually framed as Is Hardware RAID better than software RAID? Well actually it's ...

Updated 5 months ago by david

Five Apes In A Cage

War Stories

Put five apes in a cage. In the middle of a cage is a set of steps, and at the top of the steps i...

Updated 5 months ago by david

Email Inbox Management, 2011

War Stories

(10 October 2011) Interesting results from an IBM study comparing the effectiveness of folder-fil...

Updated 5 months ago by david

Email Inbox Management, 2008

War Stories

(29 January 2008) I watched the Google Talk video about the Inbox Zero concept. It is long (about...

Updated 5 months ago by david

Greylisting's Effect

War Stories

(19 March 2012) Last year when I rebuilt my server I had the opportunity to see specifically what...

Updated 5 months ago by david

IPsec MTU Adjustments

FortiOS v7.0.x

MTU can be adjusted via three ways: Adjusting the MTU of the physical interface where the IPsec...

Updated 5 months ago by david