IPSec from scratch

IPSec always felt very painful to me. Even though I read through the RFCs, it always felt so disconnected from the software impleme...

In IPSec, Network, Security, Jan 19, 2025

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WordPress

By default WordPress has a few external dependencies. For security reasons it's a good idea to prevent external dependencies or completely remove them when possible. Also this prevent...

In General, Security, WordPress, Dec 21, 2015

Disable Zone Transfer BIND9

If you use webmin go to "Zone Defaults" and enter "none" into the "Allow transfers from..." text box. If you don't use webmin go to the file "/etc/bind/named.conf.options" and en...

In DNS, Linux, Dec 21, 2015

Presentation about Hacking [German]

Presentation Hacking Handout Presentation Hacking PowerPoint

In Presentation, Nov 29, 2015

Enable Strict Replication Consistency

If your Domain had existed pre Windows 2003 you have to run the following command:Open Nodepad and add the text (NO WHITE-SPACES AT THE END):dn: CN=94fdebc6-8eeb-4640-80de-ec52b9ca17f...

In General, Nov 14, 2015

2012R2 IPv6 DHCP without Router

If you want to have your DHCP-Server assigning unique local ipv6 addresses, but you don't have a IPv6 gateway or router jet, you will notice the following behavior: The IPv6 adre...

In DHCP, IPv6, Oct 29, 2015

Remote Powershell

Login automatically with current privileges Enter-PSSession -computername hostname

In Administration, PowerShell, Oct 27, 2015

Get Powershell Version

$PSVersionTable $PSVersionTable.PSCompatibleVersions$PSVersionTable.PSVersion

In PowerShell, Oct 27, 2015

Native Network Scanner - foreach-object (PowerShell)

1..255 | foreach-object {[System.Net.Networkinformation.Ping]::new().Send("192.168.1.$_") } |where-object {$_.Status -eq "success"} | select Address

In PowerShell, Oct 23, 2015

Status Monitoring - Statusbar

How to have one line updated, for example showing available disk space updated every second.Within one line: while true; do echo -ne "$(df | grep /dev/sda4)\\r"; sleep 1; donehow ...

In Linux, Oct 19, 2015

SFC is deprecated, use dism instead

Often sfc.exe reports errors that it cannot resolve automatically. Instead of "sfc.exe /scannow" run as Administrator: Dism /Online /Cleanup-Image /ScanHealth Dism /Online /C...

In System recovery, Oct 19, 2015