Need to connect an EC2 instance in us-west-2 to an ElastiCache Redis/Valkey cluster in ap-southeast-2? This guide walks through the only safe way to do it—private networking—covering inter-region VPC peering (or Transit Gateway), routing, security group rules for port 6379, DNS resolution, and a quick checklist for troubleshooting timeouts.
Give IAM users the ability to enroll and manage their own MFA devices in AWS—without opening up risky permissions. This guide walks through a least-privilege IAM group setup using two customer-managed policies: one to enable self-service MFA actions and one to enforce MFA for all other access, plus a simple CLI workflow and break-glass best practices.
Running Ubuntu 24 on EC2 and suddenly getting Permission denied (publickey) even though your SSH keys are correct? On some images, EC2 Instance Connect is wired into sshd by default and can block key-based logins. This article shows how to confirm EC2 Instance Connect is the culprit and fix the problem by uninstalling it so your servers behave like a normal OpenSSH host again.
AWS experienced a broad incident this morning that triggered elevated errors and latency across popular services. Most Reliable Penguin clients were unaffected; where needed, we executed DR runbooks and failed over to alternate regions.
Quickly clone your AWS S3 bucket to a Linux server using the AWS CLI. Learn the simple steps to install, configure, and run a single sync command, plus handy options for testing, deleting, and region control.
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