All Content tagged with Amazon VPC
Amazon Virtual Private Cloud (Amazon VPC) gives you full control over your virtual networking environment, including resource placement, connectivity, and security.
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RDS Proxy targets never reach `AVAILABLE` in two of my three VPCs. They sit in `UNAVAILABLE / PENDING_PROXY_CAPACITY` for around 30 minutes, then flip to:
```
"TargetHealth": {
"State": "UNAVAILA...
Lucky IkaniSUPPORT ENGINEER
published 4 days ago2 votes72 views
I created a cross-account AWS Transit Gateway VPC attachment and it was accepted, but the attachment transitioned to a "failed" state instead of "available."
Lucky IkaniSUPPORT ENGINEER
published 5 days ago2 votes137 views
I want to use AWS CloudTrail to determine what configuration changes were made to my AWS Transit Gateway, such as route modifications, attachment changes, or propagation updates.
## What we're seeing
We have a Network Load Balancer with PROXY Protocol v2 enabled, in front of a
TCP backend that speaks a "server speaks first" wire protocol (MySQL, via
haproxy and separately via...
Selim SkhiriEXPERT
published 6 days ago1 votes101 views
Amazon EKS prefix delegation and EKS Auto Mode assign /28 prefixes (16 contiguous addresses) to worker nodes instead of individual IP addresses. A subnet can report plenty of free addresses and still ...
We have an AWS Site-to-Site VPN configured between our AWS VPC and an on-premises network protected by a FortiGate firewall.
Setup:
AWS ↔ On-prem Site-to-Site VPN (Static Routing)
On-prem network: 10...
I have a Lambda function and an EC2 instance in the same VPC subnet. Both use the same security group (which allows all internal traffic). An EC2 instance in the same subnet can connect to the target ...
Tirth ParekhEXPERT
published 20 days ago2 votes223 views
AWS NAT Gateway now supports two availability modes: Zonal (the original, single-AZ model) and Regional (a newer mode that automatically spans Availability Zones). With the addition of Regional mode i...
Rodrigo ReyesSUPPORT ENGINEER
published 22 days ago0 votes159 views
On November 20, 2025, AWS announced regional availability mode for NAT Gateways, a single NAT Gateway that automatically expands and contracts across Availability Zones based on workload presence, eli...
Rodrigo ReyesSUPPORT ENGINEER
published 22 days ago1 votes86 views
On June 10, 2026, Amazon VPC Flow Logs introduced two new metadata categories: EC2 resource tags and next-hop interface metadata. These fields embed workload identity and traffic path information dire...
I have a Site-to-Site VPN connection between an on-premises FortiGate firewall and an AWS VPC in us-east-2.
**Symptoms:**
- Tunnel 1 shows status "UP"
- Tunnel 2 shows status "DOWN"
- From on-premis...
I already have a VPC with the primary CIDR as 172.31.104.0/21 and that CIDR has been exhausted so I wanted to add one secondary CIDR for my use case so I went ahead with the 172.31.120.0/21 and when I...