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Change a User Password

Applications MySQL/MariaDB

(2017-09-13) > update mysql.user set Password=PASSWORD('newpass') WHERE user='username'; > flush ...

Updated 1 minute ago by david

Change MySWL Root Password

Applications MySQL/MariaDB

(if you don't know what it is) Log on to your system as the Unix mysql user that the mysqld serve...

Updated 1 minute ago by david

Access from Remote Systems

Applications MySQL/MariaDB

$ mysql -h 192.168.1.8 -u root -p Enter password: You have to set up the remote access first: $ m...

Updated 3 minutes ago by david

Markdown Cheatsheet

Applications

(2026-01-21) Markdown Cheatsheet

Updated 1 month ago by david

Enable SNMPv3

Applications VMware

(2026-10-08) Version: 8.0.1 SSH to the esxi node esxcli system snmp get esxcli system snmp set -a...

Updated 1 month ago by david

Librenms Stuffs

Applications Librenms

You're gonna want to run these as the librenms user. Command list clients with snmp versi...

Updated 1 month ago by david

etckeeper basics

Applications etckeeper

(2026-10-13) (On Ubuntu LTS 24.04) The apt install does the "git init", so everything else is jus...

Updated 1 month ago by david

SNMPv3 on ProCurve 2920

HP HP ProCurve 2920

(2026-10-08) Firmware WB.16.10.0025 Configure snmpv3: snmpv3 enable At this point it will prompt...

Updated 1 month ago by david

SNMPv3 on Ubuntu 26 LTS

Linux Ubuntu LTS 26

(2026-10-08) systemctl stop snmpd net-snmp-create-v3-user -ro -a SHA -A "myAuthPassword" -x AES -...

Updated 1 month ago by david

NPS Powershell

Applications NPS (Network Policy Server)

(2026-09-24) Export the NPS Clients Get-NpsRadiusClient | ForEach-Object { Write-Output "New-...

Updated 1 month ago by david

Ping scan

Applications nmap

(2026-10-02) ICMP ping scan: nmap -sn 192.168.1.0/24 Scan for a specific port: syn scan: nmap -...

Updated 1 month ago by david

Convert VMDK to VHD(x)

Applications Hyper-V

(2026-07-07) Problem I have a .ova file that I need to import into Hyper-V. Yadda yadda yadda, I ...

Updated 1 month ago by david

Set HyperV VM to have NumLock set on as default

Applications Hyper-V

(2026-07-24) Problem: By default, Hyper-V VMs have NumLock disabled. If your workstation has NumL...

Updated 1 month ago by david

Enable Hyper-V Reporting In ManageEngine

Applications Hyper-V

(2026-09-24) Problem The ManageEngine page includes spaces in the registry key names it wants you...

Updated 1 month 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 1 month ago by david

Netstat

Windows Windows 10

(2025-10-28) Show netstat counters -- including discards, which can be very interesting C:\Window...

Updated 1 month ago by david

Powershell: What is my ip?

Windows Windows 11

(2026-03-05) > Invoke-RestMethod -Uri https://ipinfo.io | Select-Object -ExpandProperty ip 172.10...

Updated 1 month ago by david

WSL: Networking in Mirrored Mode

Windows Windows 11

(2026-07-02) Enable Mirrored Networking Edit .wslconfig Open (or create) the file at: C:\Users<Yo...

Updated 1 month ago by david

lsof For Windows

Windows Windows 11

(2026-07-07) Sysinternals Install Sysinternals -- it's in the store and puts all the goodies in t...

Updated 1 month ago by david

Dell XPS Doesn't Return From Modern Sleep

Windows Windows 11

(2026-07-24) Problem: Laptop does not wake up properly from sleep mode. Might wake up immediately...

Updated 1 month ago by david