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Open sniffer output in Wireshark
(2026-01-21) You need: wireshark fgt2eth.exe Take your capture using verbosity level 6: diagnose sniff packet any ‘host 8.8.8.8 and icmp’ 6 0 Download the screen buffer of the raw capture, then run it through fgt2eth.exe: > fgt2eth.exe -in screencap -out ca...
Markdown Cheatsheet
(2026-01-21) Markdown Cheatsheet
Fortigate Can't Connect To Fortimanager
(2026-02-18) Problem: Fortigate shows as "down" in Fortimanager, but isn't. Most of the time said Fortigate is behind some kind of NAT'ing firewall itself. Solution: This magic chicken waving worked for me. diagnose debug reset diagnose debug application fgfm...
MAC forwarding table
(2026-02-23) v7.6.2 di switch mac-address list Filtering: di switch mac-address filter vlan-map 55 di switch mac-address filter show di switch mac-address list Output can be grep'd.
Powershell: What is my ip?
(2026-03-05) > Invoke-RestMethod -Uri https://ipinfo.io | Select-Object -ExpandProperty ip 172.105.30.24
Powershell: Fetch Web Page
(2026-03-05) > Invoke-WebRequest -UseBasicParsing -Uri "https://wiki.xdroop.com" StatusCode : 200 StatusDescription : OK Content : <!DOCTYPE html> <html lang="en-GB" dir="ltr" ...
Powershell: Test Network Connection
(2026-03-05) > tnc www.google.ca -Port 443 ComputerName : www.google.ca RemoteAddress : 142.250.69.99 RemotePort : 443 InterfaceAlias : P81_e_WG_DQZNLseeB1 SourceAddress : 10.127.12.45 TcpTestSucceeded : True
Basic SD-WAN for 7.4.x
(2026-04-08) What This Is About (This is a refinement of my previous sdwan writings.) In the course of my day-to-day duties I've been seeing a lot of sdwan configs that are misbehaving, causing users to believe that their internet links are worse than they act...
Ping Stats Without Quitting
(2019-01-21) Problem I have a long running ping and I want to see where we are without killing the ping. Solution Windows: CTRL-BREAK Linux: CTRL-\ eg: [...] 64 bytes from wiki.xdroop.com (139.60.168.32): icmp_seq=126 ttl=55 time=12.1 ms 64 bytes from wiki.xdr...
Overview
(2026-05-14) $ ntttcp --help NTTTCP for Linux 1.4.0 --------------------------------------------------------- ntttcp: invalid option -- '-' Author: Shihua (Simon) Xiao, sixiao@microsoft.com ntttcp: [-r|-s|-D|-M|-L|-e|-H|-P|-n|-l|-6|-u|-p|-f|-b|-W|-t|-C|-N|-R|-...
WSL: Networking in Mirrored Mode
(2026-07-02) Enable Mirrored Networking Edit .wslconfig Open (or create) the file at: C:\Users<YourUser>.wslconfig Add the following under [wsl2]: [wsl2] networkingMode=mirrored dnsTunneling=true autoProxy=true Copy Save the file. Restart WSL Run in PowerShel...
About wiki.xdroop.com
Hello I wish I could point you at this page as the default page for this wiki. About This is a wiki where I store various things that I learn. It isn't meant to be authoritative, it is more a lab notebook that I leave open so I can refer back to it from arbitr...
Convert VMDK to VHD(x)
(2026-07-07) Problem I have a .ova file that I need to import into Hyper-V. Yadda yadda yadda, I have a .vmdk disk image that I need to convert to .vhd or .vhdx so Hyper-V will inhale it. Solution qemu-img for Windows: PS> qemu-img.exe convert source.img -O vh...
lsof For Windows
(2026-07-07) Sysinternals Install Sysinternals -- it's in the store and puts all the goodies in the path. c:\> handle.exe -a -u "FullPathToYourFile"
Aruba CX 6200M dropped TX packets on one port
(2026-07-21) On an Aruba CX 6200M switch running AOS-CX, TX Drops (Transmitted Drops) almost always indicate egress port buffer congestion, rather than physical layer (Layer 1) cable damage. It means the switch successfully received the packet and wanted to se...
Disable IPv6 in Ubuntu LTS 26
(2026-07-21) Problem: Ubuntu is defaulting to trying ipv6 to find things and you don't have an ipv6 network to support the same. Solution: sudo tee -a /etc/sysctl.conf << 'EOF' net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6....
Set HyperV VM to have NumLock set on as default
(2026-07-24) Problem: By default, Hyper-V VMs have NumLock disabled. If your workstation has NumLock enabled, clicking into a Hyper-V console will set your NumLock to disabled, a state which remains when you click out of it. If you use your number pad then thi...
Dell XPS Doesn't Return From Modern Sleep
(2026-07-24) Problem: Laptop does not wake up properly from sleep mode. Might wake up immediately, might require multiple close/opens of lid to wake up, might not wake up at all. Logs point finger at "returnign from Modern Sleep mode" or the like. Solution: Go...