Measuring DNS over TLS from the Edge: Adoption, Reliability, and Response Times

Trinh Viet Doan | Irina Tsareva | Vaibhav Bajpai
Technical University of Munich

PAM 2021, March 29–31, 2021. Pre-print →

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Vantage Points

The dataset is collected from ~5.2k RIPE Atlas probes, of which ~3.2k are home probes and considered for the analyses. A map of these home probes is shown below.

Dataset

The measurement results can be retrieved from the RIPE Atlas API through the measurement IDs, which are listed in the shared sqlite3 database ./data/main.db, see tables traceroutes and measurements; the measurement results need to be stored in the traceroute_measurements and results tables, respectively.

The schemas of all tables can be found under ./data/main.sql.

This repository contains (most of) the required code and metadata to reproduce the results, see below for further instructions.

Requirements

To read from the database (see above), sqlite3 is needed. The analyses were performed using jupyter notebooks on Python 3.6.9. Required Python dependencies are listed in requirements.txt and can be installed using pip3 install -r requirements.txt.

For the calculation of CDFs and drawing of the corresponding plots, Pmf.py → and Cdf.py → from Think Stats → are used.

Repeating the analysis

Download the raw measurement results from the RIPE Atlas API through the provided measurement IDs, e.g., using the Python modules ripe.atlas.cousteau and ripe.atlas.sagan:

• main.db (~20 GB after downloading results) → ./data/

Move the modules to the right locations:

• Pmf.py → ./response-times/
• Cdf.py → ./response-times/

Run the jupyter notebooks in the ./preprocessing/ directory (in the specified order) to process and aggregate the raw dataset, which will store the results in separate databases in the ./data/ directory. After that, the other notebooks in the ./reliability/ and ./response-times/ directories can be used to derive results presented in the paper. All plots are saved under ./plots/.

Note: The required metadata lookups were already done and are stored in the ./metadata/ directory.

Contact

Please feel welcome to contact the authors for further details.

• Trinh Viet Doan (doan@in.tum.de) (corresponding author)
• Irina Tsareva (irina.tsareva@tum.de)
• Vaibhav Bajpai (bajpaiv@in.tum.de)