Author: Danilo

DHCP Server on NSX-T is an article that provides all the steps to set up a DHCP Server on an NSX-T Segment. With this configuration, NSX-T will be your DHCP Server for the specific NSX-T Segment. Configuring an NSX-T DHCP Server allows virtual machines connected to an NSX-T Segment to receive IP addresses and network settings automatically. In this guide, we explain how the built-in DHCP service works and walk through the configuration process step by step. NSX-T supports multiple approaches for delivering DHCP services to workloads. You can configure NSX-T to operate as the DHCP Server for individual segments…

Configuring DNS Service on NSX-T is an article that provides the necessary steps to configure the DNS Forwarder service on the NSX-T environment. DNS is the acronym for Domain Name Server. This network protocol translates DNS names/FQDN to IP addresses (and vice versa). In the picture below, we have an example of how the DNS protocol translates the domain name to the IP address. The end-user is requesting the domain name “www.example.com” to its DNS resolver and it is responsible for giving the IP address for the user’s request. If the DNS resolver (DNS server used by the end-user) does…

Useful RVC Commands for Troubleshooting vSAN is an article that provides some RVC commands to help the vSAN troubleshooting process. Firstly, What is RVC? RVC is an acronym for Ruby vSphere Console. It is an interactive command-line console accessible by the vCenter Server. The RVC is based on the popular RbVmomi Ruby Interface. When the vCenter Server is deployed, the RVC console “is embedded” – we do not need to install any additional package or something like that. We can use RVC for troubleshooting several things on the vSphere environment, and for vSAN clusters, RVC can be a primary tool…

Network Address Translation (NAT) on NSX-T is an article that explains some ways to use the NAT on NSX-T. We will provide some examples of SNAT (Source NAT) and DNAT (Destination NAT). First and Foremost, What is NAT? When we are talking about NAT, we are talking about some techniques when it is possible to translate the IP addresses. It is a method by which IP addresses are mapped from one realm to another, in an attempt to provide transparent routing to hosts, access services, solve network overlap issues, etc. Just to remember, the NAT technology was developed to solve…

What is NSX-T DFW is an article that explains a little bit about the NSX-T Distributed Firewall and how rules are applied on Hosts Transport Nodes. Security is a subject that needs careful attention for all administrators at all levels of business (from small to bigger companies). Cybercrime is more sophisticated and new malware is released every day. So, we need to improve our digital security to avoid or minimize risks related to it. In this context, the DFW acronym for Distributed Firewall can help to protect the virtual workloads inside an NSX-T infrastructure. Each Host Transport Node has firewall…

Clustering VMware Aria Operations for Logs is an article that explains how to create a cluster with VMware Aria Operations for Logs. Single Nodes A basic VMware Aria Operations for Logs configuration includes a single node. Log sources can be applications, Operating Systems logs, virtual machine logs, hosts, the vCenter Server, virtual or physical switches, routers, storage hardware, etc. Log streams are transported to the VMware Aria Operations for Logs node using syslog (UDP, TCP, TCP+SSL) or CFAPI (the VMware Aria Operations for Logs native ingestion protocol over HTTP or HTTPS). As a best practice, do not use single nodes…