Hi! first time posting here. I started working on a builtin-way for nginx to provide GDPR conformaing access logs reliably by default:
https://github.com/nginx/nginx/compare/branches/stable-1.18...flyingcircusio:ctheune-anonymize-by-default This isn’t ready to be merged at this point as it suffers at least from two things: a) I’m not a C programmer by nature and might be making stupid mistakes. This is “monkey see monkey do code”. b) You likely do not want to have this on by default for everyone, so I’m expecting that this requires a config option (runtime or compile, with a slight preference to runtime from me). The new built-in variable remote_addr_anon should be available by default in any case, though. Some background: we tried implementing this purely by using a mapping approach, but this doesn’t make it a proper default as everybody defining an access log has to mention the proper format or accidentally IPs will leak. This happens over and over and we’d prefer a “privacy by design” approach very much. There is a trac ticket (https://trac.nginx.org/nginx/ticket/868) that already discusses this, however the .1 is IMHO not a good approach to recommend as it suggests a real IP whereas our impression is that nulling the last byte in IPv4 and nulling the last 8 bytes in IPv6 is the proper approach and it’s directly visible that this is an anonymized IP. Let me know what you think about this and - if you’d like to see this in the mainstream code - I’d appreciate if you give me the necessary hints to bring this code to the level of quality that is proper for nginx. Kind regards, Christian -- Christian Theune · [email protected] · +49 345 219401 0 Flying Circus Internet Operations GmbH · http://flyingcircus.io Leipziger Str. 70/71 · 06108 Halle (Saale) · Deutschland HR Stendal HRB 21169 · Geschäftsführer: Christian Theune, Christian Zagrodnick
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