Sold by: Derek Coleman & Associates
Deployed on AWS
This product has charges associated with it for image hardening, maintenance, and support. Varnish Cache HTTP accelerator on Amazon Linux 2023, security-hardened for production: minimal package set, SSH key-only access, IMDSv2-only, per-instance admin secret, and continuously patched images.
Overview
Varnish Cache (Hardened) on Amazon Linux 2023 is a production-ready, security-hardened image of the Varnish Cache HTTP accelerator, maintained and supported by Derek Coleman & Associates Incorporated.
This is repackaged open-source software. Varnish Cache is developed by the Varnish Cache project and is distributed under a BSD 2-Clause license. Varnish is a trademark of Varnish Software AB; this listing is not endorsed by or affiliated with Varnish Software. This product bundles unmodified upstream Varnish Cache 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, the varnishadm management secret generated per instance on first boot (never baked into the image), admin interface bound to localhost, host firewall exposing only the HTTP port, and no default credentials anywhere. Images are rebuilt, scanned for HIGH and CRITICAL vulnerabilities, and republished on a regular cadence so that new launches start current. Varnish listens on port 80 with the backend defined in /etc/varnish/default.vcl (placeholder points at 127.0.0.1:8080 until you configure your origin).
Highlights
- Security-hardened at build time: minimal packages, key-only SSH, IMDSv2-only, per-instance admin secret, admin interface on localhost only.
- Continuously patched: rebuilt, vulnerability-scanned, and republished on a regular cadence.
- Production-ready: systemd-managed Varnish on port 80 with 256 MB malloc cache; point default.vcl at your origin and restart.
Details
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Delivery method
Delivery option
64-bit (x86) Amazon Machine Image (AMI)
Latest version
Operating system
AmazonLinux 2023
Deployed on AWS
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Pricing
Pricing is based on actual usage, with charges varying according to how much you consume. Subscriptions have no end date and may be canceled any time.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
Dimension | Cost/hour |
|---|---|
c7i.xlarge Recommended | $0.46 |
c7i.4xlarge | $1.84 |
c7i.2xlarge | $0.92 |
Dimensions summary
You pay by the hour based on the compute instance size you run. Three options are available, all built on the same hardened image. The c7i.xlarge runs on a smaller instance. The c7i.2xlarge steps up to more compute. The c7i.4xlarge offers the most vCPU and memory of the three. Pricing scales with instance size, so a larger instance costs more per hour. Billing is metered and appears on your existing AWS invoice, with no separate vendor relationship needed. You run it in your own AWS account under your controls.
Top-of-mind questions for buyers
Each option runs the same hardened Varnish Cache image on a different compute size. The c7i.xlarge has 4 vCPUs, the c7i.2xlarge has 8 vCPUs, and the c7i.4xlarge has 16 vCPUs, with memory scaling accordingly. You pick the size that matches your caching workload.
The software fee meters running time only. A fully stopped instance stops accruing software charges. You may still pay underlying AWS storage fees for the stopped instance, but those are separate from the software charge shown in the pricing table.
The software is metered per vCPU per hour and billed by AWS on your existing invoice. No separate vendor relationship is needed. A larger instance has more vCPUs, so the per-hour cost rises with instance size. It runs in your own AWS account.
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Vendor refund policy
Usage-based hourly billing; charges stop when instances are terminated. Contact support@dcassociatesgroup.com for billing questions.
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Vendor terms and conditions
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Content disclaimer
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Delivery details
64-bit (x86) Amazon Machine Image (AMI)
Amazon Machine Image (AMI)
An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
[Security] Refreshed image: rebuilt on the latest hardened Amazon Linux 2023 baseline; all OS packages current at build.
Additional details
Usage instructions
Launch from AWS Marketplace (1-Click or EC2 console). Connect via SSH: ssh -i <key> ec2-user@<public-ip>. Varnish listens on port 80; edit /etc/varnish/default.vcl to point the backend at your origin server, then: sudo systemctl restart varnish. The varnishadm secret is generated per instance at /etc/varnish/secret. Root login is disabled; use sudo. There are no passwords anywhere in this product.
Support
Vendor support
Support by Derek Coleman & Associates Incorporated. Email: support@dcassociatesgroup.com . Business-day response. Covers image operation, hardening baseline, and launch issues.
AWS infrastructure support
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
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