Memcached (Hardened) on Amazon Linux 2023
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. This product has charges associated with it for image hardening, maintenance, and support.
Why this image
- Production-ready: systemd-managed Memcached; expose only to trusted CIDRs after you widen the bind.
- 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.
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 Inc.
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
1. Launch from AWS Marketplace (1-Click or EC2 console). 2. Connect via SSH with your EC2 key pair: ssh -i <key> ec2-user@<public-ip>. Root login is disabled; use sudo. 3. Memcached binds to 127.0.0.1 with UDP disabled. To expose it, edit /etc/sysconfig/memcached (-l), then: sudo systemctl restart memcached, and open TCP 11211 to trusted CIDRs only. 4. Verify: sudo systemctl status memcached. 5. Sensitive data: there are no passwords or secrets anywhere in this product. 6. Backup: snapshot the EBS volume (it contains all configuration and data). 7. Resources: a single instance uses 1 EC2 instance and 1 gp3 EBS volume; no other AWS resources are created. 8. Support: support@dcassociatesgroup.com.
Support
Email support@dcassociatesgroup.com — business-day response. Covers image operation, the hardening baseline, and launch issues. See support.
Migrating from Bitnami?
This image is a marketplace-native alternative for teams leaving the retired free
Bitnami Memcached image. It is not a drop-in copy of Bitnami's layout: Bitnami
installs under /opt/bitnami and is controlled with ctlscript.sh,
while this image uses the standard Amazon Linux 2023 paths and systemctl
shown in the getting-started steps above.
- Bitnami Memcached alternative — migration notes for Memcached
- Bitnami migration hub — deprecation timeline, Lightsail blueprint dates, and the same image on Azure and Google Cloud
Bitnami is a trademark of Broadcom, Inc. Used for identification only; no affiliation or endorsement implied.