---
esco_uri: http://data.europa.eu/esco/skill/e5b5053e-0ef6-4c4e-a3f2-42f955f4322c
esco_label: "implement a firewall"
relation: optional
onet_soc: 15-1242.00
source: model-knowledge
confidence: high
qa_count: 0
generator: gemma3:27b (prompt-designed and spot-checked by Claude)
generated: 2026-07-10
---

# implement a firewall — Database Administrator

For a Database Administrator, 'implementing a firewall' isn’t about being a network security *specialist*, but understanding how firewalls protect the database server itself. Daily tasks revolve around configuring firewall rules to allow legitimate database traffic (client connections, replication, backup processes) while blocking everything else – think specific ports for SQL Server, PostgreSQL, Oracle, etc., and limiting access by source IP address. It's about *defense in depth*; you’re not replacing network firewalls, but adding a layer directly protecting the data. Tools used are often OS-level firewalls (iptables/firewalld on Linux, Windows Firewall) or database-specific firewall features built into some DBMS platforms.

## Weitere Anreicherung

Stage-2 source for future practitioner grounding: arXiv cs.SE (software-engineering preprints).
