Tag: Networking

  • Azure 3rd party firewalls and VPN

    A lot of customers on Azure want to use the 3rd party firewalls that are available in the Azure Marketplace. But when it comes to Site2Site VPN connections, sometimes it doesn’t work as expected. Especially when using different vendors on-premises.. Why? let’s find out…

  • ADFS on Azure

    Azure Active Directory and thus any relying party on that service (such as Office 365) has two different modes for (your) custom domains that are added to it. Managed and Federated. Managed means that the authentication happens against the Azure Active Directory. The password (-hashes) of the user accounts are in Azure AD and no…

  • Checkpoint with Azure VPN (new version)

    These are my notes on the newer Checkpoint VPN stuff.. but still working on actually testing them.. – I put a 2016 date on it to remove it from the main page.. Seems the MSS clamping on Azure VPN’s needs to be 1350, my PPPOE adapter needed to be 1492 for du Connections. Note: MTU…

  • Azure Networking S2S + P2S

    In a previous post we looked at the ability of creating a Site-2-Site connection from Checkpoint to Azure using a Dynamic Gateway. In this post, we look at client-dialup (VPN) into the Azure network and establish routing between all the sites involved.

  • Web Application Proxy – on Azure

    The Azure AD Application Proxy is a new feature available in Azure WAAD Premium. It allows administrators to securely publish internal websites using Azure’s technology. By using this, it will allow customers to make use of enterprise class hardware in their reverse proxy solutions protecting against DDOS attacks and many more other things. In this post we…

  • Azure VPN with Checkpoint FW

    In this post, how to configure a Site2Site VPN connecting using a Checkpoint firewall. [EDIT: The instructions below are for R77, which is a really old version. I’m currently writing the instructions for the R80.20 version, but it seems it’s a bit harder to get the S2S tunnel up and stable.. certainly on my PPPOE…

  • Tunnel DMZ to Internal

    When you have servers in the DMZ that are members of your internal AD (not best practice ok.. ) .. you find yourself shooting holes in the firewall to allow RPC, SMB and other protocols. In that case perhaps an IPSEC tunnel can help you out.. when you use a tunnel between your internal and…