Michael Sabrnak MyKE

Scenario:
You have single public IP address 188.50.11.21 and 2 internal web servers hidden behind public IP address:

• www.example1.com – 192.168.1.243
• www.example2.com – 192.168.1.245

And you would like to forward traffic to each of the web server at the WAN side. RouterOS and his Web Proxy package allows this for HTTP traffic (not HTTPS).

This guide explains how to “hack” drivers Setup Information file and permit installation of excluded hardware from Vendor. This tutorial is targeted to install not supported Intel I219-V (2) Ethernet Adapter situated on MB from ASUS with chipset Z170 (Intel Socket 1151) on Windows Server 2016.

Short guide How to audit manipulation with files and folders on Windows File Server.

1. First thing first you must configure Security policy to enable Auditing on machine:

Simple way how to count checksum of any file with PowerShell.

CertUtil -hashfile C:\MyFile.iso MD5

Available Hash algorithms: MD2 MD4 MD5 SHA1 SHA256 SHA384 SHA512

Short article how to determine SID of known AD User and vice versa.

Determine SID of known AD User:

$objUser = New-Object System.Security.Principal.NTAccount("MyDomain", "MyADUser")
$strSID = $objUser.Translate([System.Security.Principal.SecurityIdentifier])
$strSID.Value

Determine which SID belongs to:

Useful methods how to determine if WSUS is used in corporate environment.

1. Locate WSUS via registry key called WUServer on client/server inside: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\
2. Locate file c:\windows\windowsupdate.log where should be WSUS server url
3. Run Gpedit.msc > Computer Configuration > Administrative Templates > Windows Components > Windows Update > Specify intranet Microsoft Update Service Location
4. From Domain Controller you can run Group Policy Results on specific machine or run rsop.msc directly on specific machine.

Express guide how to install OScam on (L)Ubuntu linux OS. Guide can be used also for RaspBerry Pi 3 board.

Sometimes can be useful to send RDP session to physical Console because of automation which operates with GUI buttons, for example Autoit. If session will be disconnected then GUI operations can’t be performed because of lockscreen in disconnected session.

During installation of new executable file may popup alert message: Error 1603: Fatal Error During Installation.
This solution is applicable only for Microsoft Terminal Services servers (+Citrix servers):

This site has been migrated under new domain sabrnet.wzk.cz (formerly sabrnet.cz).