aegis-db-server-hardening SKILL.md skillA
aegis-db-server-hardening from as-foss/aegis-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add as-foss/aegis-skills/aegis-db-server-hardening@git:20260826.9702747Pins git:20260826.9702747 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- as-foss/aegis-skills
- Path
skills/server/db-server-hardening/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260826.9702747, committed Aug 26, 2026
- First version recorded
- Aug 25, 2026
- Size
- 57,652 bytes
- Repository stars
- 16
- License
- Apache-2.0
Audits database server hardening for PostgreSQL, MySQL/MariaDB, Redis, and MongoDB — network placement and binding, transport encryption, authentication configuration, role/account hygiene, and dangerous-command surface — with read-only inspection commands, hardened config blocks, and post-fix verification steps.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
## Scope & Objectives Audit one host's database estate (or its config-as-code) across four engines, in priority order: 1. **Placement & exposure** — which engines listen (`ss -tlnp` port map: 5432/3306/6379/27017), what address each binds, whether the firewall path actually permits strangers (reachability cross-ref → FW), co-location with the app tier, and TLS on any app↔DB hop that crosses a network. 2. **PostgreSQL deep pass** — `postgresql.conf` security-relevant GUCs, ordered `pg_hba.conf` rule audit, role hygiene (extra superusers, passwordless LOGIN roles, legacy md5 verifiers), PUBLIC default grants on schema/database. 3. **MySQL/MariaDB pass** — binding, transport enforcement, password-validation component, default-account/test-DB cleanup state, remote root, auth-plugin mix, `FILE` privilege exposure, log-file permissions, credential staleness. 4. **Redis pass** — protected-mode, bind scope, ACL/requirepass presence and shape, dangerous-command governance, RDB file permissions. 5. **MongoDB pass** — authorization enabled, bindIp scope, SCRAM mechanism posture, localhost-exception closure, at-rest encryption honesty (Enterprise feature vs disk-level alternative). …
Read the whole file at its exact version.
How to install
mdr add as-foss/aegis-skills/aegis-db-server-hardening@sha256:84120e883ac2ddd2The line at the top of this page pins the label git:20260826.9702747, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_n3h7qqy2hjux3t2i)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 25, 2026 and Aug 26, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260826.9702747 latest | 2026-08-26 | 9702747 | 57,652 B | A | view · diff |
| git:20260825.85624bc | 2026-08-25 | 85624bc | 57,646 B | A | view · diff |
| git:20260825.244c198 | 2026-08-25 | 244c198 | 56,579 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (57652 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
as-foss/aegis-skills · 16 stars · license Apache-2.0 · pushed 2026-08-26 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_n3h7qqy2hjux3t2i GET https://markdownregistry.com/api/v1/resolve?ref=as-foss/aegis-skills/aegis-db-server-hardening GET https://markdownregistry.com/api/v1/blob/84120e883ac2ddd2716f1d4ce081796c003df2d962f6f810acae7a18827c65f1
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.