All posts by rootBlog

Wireguard

Wireguard. Installation

Hi,

these are the steps to install and configure wireguard on a raspberry pi as server.

michael@debdev ~ # sudo apt install wireguard

Generate the server private key

michael@debdev ~ # wg genkey
cNJnQwITOsONCZLpp1G6daBSvgvUBd3gzqQXLMuijmc=

And generate the clients private key

michael@debdev ~ # wg genkey

Create the servers config file 

michael@debdev ~ # vi /etc/wireguard/wg0.conf

[Interface]
Address =  10.10.2.1/24
ListenPort = 58888
PrivateKey = cF6Yl9k661OSZFzgBlN7OPEotc9qAS0+GzB14wh16UU=

# Peer 1: WorkingLaptop
[Peer]
PublicKey = WtEJQKNTlX4HfIihoUW630rseGG+3KM6lC1Xv7ewrUQ=
AllowedIPs = 10.10.2.10/32

Enable config wg0

michael@debdev ~ # sudo systemctl enable wg-quick@wg0
michael@debdev ~ # sudo systemctl start wg-quick@wg0

Create a client config

[Interface]
PrivateKey = EDk0yjxBltW0kyJfCzysBqRXWB2X+8mmvN1VylOSZ1g=
Address = 10.10.2.10/24
DNS = 10.10.2.1

[Peer]
PublicKey = AsQUJtZLgHdgKBw0i6X1CiQZ/j7yF/vJl02OVZ4Ai1k=
Endpoint = myyour.vpnserver.org:58888
# Route all traffic through VPN
# AllowedIPs = 0.0.0.0/0
# Route only specific subnets through VPN. Pushing routes from server not possible
AllowedIPs = 10.11.1.0/24, 172.16.31.0/24

michael@debdev ~ #

Windows Hints

"C:\Program Files\WireGuard\wireguard.exe" /installtunnelservice  %~dp0home.conf

sc stop WireGuardTunnel$home
sc start WireGuardTunnel$home

sc config  WireGuardTunnel$home start=disabled

"C:\Program Files\WireGuard\wg.exe" show

Linux

Windows, Windows knowhow

Windows: Network packet capture with pktmon

Hi,

Windows has a built in tool for network capturing.

List Adapter

pktmon comp list

Capture on interface with ID 8 , this save the packets to C:\Windows\System32\pktmon.etl

pktmon start --capture --comp 8 --pkt-size 0

Stop capturing

pktmon stop

Save as pcap format

pktmon etl2pcap C:\Windows\System32\pktmon.etl --out D:\trace.pcapng

Michael

Windows knowhow

Windows: sysprep fails with “Failure occurred while executing ‘Sysprep_Clean_Opk’ “

Hi,

after an Upgrade from Windows 10 to Windows 11 on a customer PC sysprep is no longer working. Unfortunataly the error messages in C:\Windows\System32\sysprep\Panther\setuperr.log does not really help to find the root cause:

Error                        pGetUninstallInterfaceCommon: Failed loading the setupplatform, hr = 0x80070666
Error                 SYSPRP RemoveUninstall:Failed to instantiate uninstall interface; hr = 0x80070666
Error                 SYSPRP Sysprep_Clean_Opk:Failed to remove Uninstall; dwRet = 0x666
Error                 SYSPRP ActionPlatform::LaunchModule: Failure occurred while executing 'Sysprep_Clean_Opk' from C:\Windows\System32\spopk.dll; dwRet = 0x666
Error                 SYSPRP SysprepSession::ExecuteAction: Failed during sysprepModule operation; dwRet = 0x666
Error                 SYSPRP SysprepSession::ExecuteInternal: Error in executing action for Microsoft-Windows-Sysprep-SpOpk; dwRet = 0x666
Error                 SYSPRP SysprepSession::Execute: Error in executing actions from C:\Windows\System32\Sysprep\ActionFiles\Cleanup.xml; dwRet = 0x666
Error                 SYSPRP RunPlatformActions:Failed while executing Sysprep session actions; dwRet = 0x666
Error      [0x0f0070] SYSPRP RunDlls:An error occurred while running registry sysprep DLLs, halting sysprep execution. dwRet = 0x666
Error      [0x0f00a8] SYSPRP WinMain:Hit failure while processing sysprep cleanup providers; hr = 0x80070666
Error      [0x0f0060] SYSPRP ParseCommands:Found unsupported command line option '/?'
Error      [0x0f00a4] SYSPRP WinMain: Unable to parse command-line arguments to sysprep; GLE = 0x0
Error      [0x0f0060] SYSPRP ParseCommands:Found unsupported command line option '/?'
Error      [0x0f00a4] SYSPRP WinMain: Unable to parse command-line arguments to sysprep; GLE = 0x0

Continue reading Windows: sysprep fails with “Failure occurred while executing ‘Sysprep_Clean_Opk’ “ →

Windows knowhow

Windows: Add a virtual interface for each 802.1q tagged vlan

Hi,

let use assume you have a network adapter with multiple tagged 802.1q vlans on it. Previously, Intel published the Advanced network services. In the past this could be used to create a virtual network adapter for each VLAN id. Unfortunatly the tool is deprected.

Continue reading Windows: Add a virtual interface for each 802.1q tagged vlan →

Powershell, XML

XML: Selectnode XPath query independend from namespace

Leave a comment

Hi,

i got the following xml structure and want to select just the the “Data” node with the attribute “CommandLine” without defining a namespace object first.
Continue reading XML: Selectnode XPath query independend from namespace →