One-time Network Watcher check from a VM to another VM, an FQDN, a URI or an IP and port, reporting whether it is reachable, the latency and which hop (route or NSG) breaks it.
Read more: Microsoft Learn
In the Ultra Transcenders books
Each book explains Connection troubleshoot in context, with comparison tables and the common traps.
Terms in this definition
- Network Watcher
Collection of Azure network troubleshooting tools: next hop, IP flow verify, packet capture, Connection Monitor and flow logs, among others.
- FQDN
The full DNS name of a host, zone included, for example www.contoso.com.
- URI
Identifies a resource as a string; examples include the address of a Key Vault secret and the queue service address Functions connections rely on.
- Default security rules
Built-in NSG rules at priorities 65000-65500: AllowVnetInBound, AllowAzureLoadBalancerInBound and DenyAllInBound, plus AllowVnetOutBound, AllowInternetOutBound and DenyAllOutBound. Removal is impossible; custom rules at 100-4096 take precedence.