The main repositories here are a Ruby profiler I wrote called rbspy and a cookbook for learning pandas. There are also dozens of other tiny toy projects that I made for fun once and don't maintain at all.
Some other places you can find my work on the internet:
Hi @jvns,
Thank you for providing a great tool, love it! Thank you for always providing such great material on your blog as well!
If I may, are there any plans to release the DNS program that makes the queries as a CLI tool in the future? Definitely could use this for getting all the record types which is currently not something we can do with dig in most cases. If you know of any other programs that can do this, please let me know!
Thank you again!
service does not work with domain as FQDN
I'd love to get SPF records back if possible.
Thanks for the rad tool!
DMARC records often (always?) reside on a subdomain like _dmarc.example.com.
Using this dns-lookup we can look up the DMARC record: https://dns-lookup.jvns.ca/#_dmarc.example.com|txt
But it's a bit cumbersome having to do that for one specific record.
Would it be possible to extend this tool to also check the TXT record for the _dmarc subdomain automatically?
I've tried to run this project locally but I'm not familiar with golang or the ecosystem so I got stuck :-)
I couldn't find license information in the repository. Is it open source?
The DNS tracer does not query IPv6 DNS servers.
The IPv6 addresses of the root nameservers are not used nor shown (all of them have IPv6).
Although the IPv6 addresses of intermediate nameservers are shown in the additional section, they are not queried. Requests are only sent to the legacy addresses. If a domain is IPv6-only then the trace fails entirely.
The tracer only queries for an A record, it does not allow setting any other types.
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