---
type: source
title: "Debian: Apt-Proxy"
tags: [debian, apt, proxy, urz]
related: [apt-proxy, apt-cache.uni-greifswald.de, transparent-proxy]
created: 2026-06-30
updated: 2026-06-30
sources: ["output/rz_uni_greifswald_de_dienste_allgemein_sonstiges_update_service_debian_apt_proxy.md"]
---
# Debian: Apt-Proxy

This source provides technical instructions for activating the central Apt-Proxy server provided by the Universitätsrechenzentrum (URZ) on Debian-based systems.

## Key Technical Details
The URZ provides a caching proxy to optimize the retrieval of Debian packages. The configuration is designed to be "transparent," meaning the system's package source lists (`sources.list`) do not need to be modified.

### Configuration Steps
To activate the proxy, a configuration file must be created with the following specifications:
- **Directory**: `/etc/apt/apt.conf.d/`
- **Filename**: `02urz`
- **Content**: `Acquire::http::Proxy "http://apt-cache.uni-greifswald.de:3142";`

Once this file is created, standard update and installation commands will automatically route package requests through the URZ proxy server.
