Skype for Business Online connectivity paths

Recently Microsoft released a blog article to provide awareness and guidance on Simplified port requirements for Skype for Business Online: https://techcommunity.microsoft.com/t5/Skype-for-Business-Blog/Simplified-port-requirements-for-Skype-for-Business-Online/ba-p/77094 which had an updated destination ports to the cloud that makes the high ports TCP and UDP optional. what concerns us here in this article is any traffic going through the Cloud services; so…

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Netmon capabilities for Skype for Business online troubleshooting

Many times we need to do network trace using tools like wireshark, netmon or Message analyzer. i find wireshark overwhelming since it doesnt filter the by process, Netmon and Message analyzer provide a way more efficient user interface and filtering based on process as shown on the picture below from netmon: but even when you…

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Is your Exchange Unified Messaging protected against telecommunication fraud?

What is Telecommunications Fraud? Telecommunications fraud is the process of exploiting a misconfiguration in telecommunications systems to gain access to your telecommunication platform to make calls on your behalf. Few things that are really bad about this type of exploit: The exploiter don’t even need an internet to perform such hack. The exploiter doesn’t need your users…

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Azure Site to Site VPN required Device configuration parameters

Whether you Selected IKEv1 or IKEv2 the following settings needs to be configurable with the following values: Methods of Encryption and Integrity Two parameters are decided during the negotiation: Encryption algorithm Hash algorithm Parameter IKE Phase 1 (IKE SA) IKE PHASE 2 (IPSec SA) Encryption AES-128 AES-256(Required) 3DES DES CAST (IKEv1 only) AES-128 AES-256 (Required)…

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Create Custom OS in Azure

1- Create you Custom VM in a Hyper-v in your local machine with disk format of VHD 2- Sysprep the Windows Machine or in Linux “waagent” Sysprep for Hyper-v VM Open a Command Prompt window using Run as administrator Change the directory to %windir%\system32\sysprep. Run sysprep.exe as shown below  for Linux: Follow the Linux waagent guide…

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Create Azure VPN point to Site

1- Download the MakeCert tool from the SDK to create the certificates for the VPN: Install Windows Software Development Kit (SDK) for Windows 8.1 https://msdn.microsoft.com/en-us/windows/desktop/bg162891.aspx Only Select windows software development kit and net framework 4.5.1 software development kit those should be enough to have the MakeCert tool for creating the VPN certificate   2- Create the certificate: Create…

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