Memcached (Hardened) on Amazon Linux 2023
This product has charges associated with it for image hardening, maintenance, and support. Memcached on Amazon Linux 2023, security-hardened for production: minimal package set, SSH key-only access, IMDSv2-only, bound to loopback with UDP disabled (no amplification vector), and continuously patched images.
Why this image
- Security-hardened at build time: minimal packages, key-only SSH, IMDSv2-only, bound to loopback, UDP disabled to prevent amplification abuse.
- Continuously patched: rebuilt, vulnerability-scanned, and republished on a regular cadence.
- Production-ready: systemd-managed Memcached; expose only to trusted CIDRs after you widen the bind.
About
Memcached (Hardened) on Amazon Linux 2023 is a production-ready, security-hardened image of the Memcached distributed memory object caching system, maintained and supported by Derek Coleman & Associates Incorporated.
This is repackaged open-source software. Memcached is developed by the Memcached community and is distributed under the BSD 3-Clause license. This product bundles unmodified upstream Memcached on a hardened Amazon Linux 2023 base; the charges associated with this listing are for image hardening, continuous patching, vulnerability scanning, and business-day support - not for the underlying open-source software, which remains free.
Hardening baseline: minimal package footprint, SSH key-only access (password authentication disabled), IMDSv2 enforced, Memcached bound to 127.0.0.1 with UDP disabled so the instance cannot be used as an amplification vector. Widening the bind address in /etc/sysconfig/memcached and opening TCP 11211 to trusted CIDRs is a deliberate customer configuration step. Images are rebuilt, scanned for HIGH and CRITICAL vulnerabilities, and republished on a regular cadence so that new launches start current. Manage the service with systemd: sudo systemctl restart memcached.
Pricing (hourly usage, AWS Marketplace)
| Instance type | Size | Software price |
|---|---|---|
| c7i.xlarge | 4 vCPU / 8 GiB | $0.46/hr |
| c7i.2xlarge | 8 vCPU / 16 GiB | $0.92/hr |
| c7i.4xlarge | 16 vCPU / 32 GiB | $1.84/hr |
Recommended: c7i.xlarge. AWS infrastructure charges are separate and billed by AWS. Charges stop when instances are terminated. No subscription, no minimum.
Getting started
Launch from AWS Marketplace (1-Click or EC2 console). Connect via SSH: ssh -i <key> ec2-user@<public-ip>. Memcached binds to 127.0.0.1 with UDP off. To expose it, edit /etc/sysconfig/memcached (-l), then: sudo systemctl restart memcached, and open TCP 11211 to trusted CIDRs only. Root login is disabled; use sudo. There are no passwords anywhere in this product.
Support
Email support@dcassociatesgroup.com — business-day response. Covers image operation, the hardening baseline, and launch issues. See support.