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22 November 2021

F5 BIG-IP APM – Configuring App Tunnels

I really like F5 BIG-IP APM because it has lots of use cases. We can use APM as a secure portal access with lots of resources such as SAML Resources, Webtop Links, Single Sign-On configuration, etc. We can also use APM as a SSL VPN in web mode or tunnel mode. In addition, thanks to the Visual Policy Editor (VPE), it's really powerful and easy to configure applications access from a security perspective.

This week, I’ve been working with the application tunnel feature where I’ve had to configure access to several apps through a tunnel. We didn’t want to use a Network Access, thus, the application tunnel fits the requirement. Therefore, we can watch in the next video how to configure a basic app tunnel to access to the F5’s management interface. However, this configuration is the same for other internal resources such as SSH or Webmail services.

Regards my friends! Did you know the App Tunnel feature?

15 November 2021

F5 BIG-IP DNS - Topology Load Balancing

I’ve already written about Data Center Load Balancing where I have even recorded a video with the F5 BIG-IP DNS configuration. I’ve also written about DNS Load Balancing, DNS Security, DNS over HTTPS (DoH) & DNS over TLS (DoT) and how to configure DoH and DoT with F5 LTM. However, I think I still have to learn a lot about this interesting and needed protocol that’s why I’ve been testing the topology algorithm in F5 BIG-IP DNS these weeks.

In fact, I’ve recorded a new video where you can watch how to configure F5 BIG-IP DNS for Global Server Load Balancing (GSLB). Firstly, I’ve created two nodes, two pools and two virtual servers where each of them could be a service hosted in different data centers. Secondly, I’ve created the DNS configuration such as the Wide IP with two pools, Data Center, Server, DNS listeners, Regions and Records. Finally, I’ve tested the configuration where you can watch how F5 DNS resolves DNS queries according to Regions and Records.

 


Actually, there are lots of ways to configure services in high availability using more than one data center. F5 BIG-IP LTM device and BGP protocol allow us to send traffic to several data centers for high availability but F5 BIG-IP DNS is also another way which allows us to configure a genuine GSLB topology.

Regards my friends! How do you design services in high availability between data centers?

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