ESNItool

Simple tool to extract and print ESNI (TXT) records for hostname.

$ ./esni_tool tls13.1d.pw.

ESNI tool
v.0.1.beta
Resolves ESNI TXT records, prints parsed result.
(Resolvers are from /etc/resolv.conf file.)

Resolver (system): 192.168.1.1:53

	Input name: tls13.1d.pw.
	Constructed name: _esni.tls13.1d.pw.
	Using resolver 192.168.1.1:53

Performing DNS lookup...OK

Source value:
	/wGFoqIpAIkAHQAgLukkHH6AiIAPYODmYK/6Nz3H7N58nYZyb/WG62h4TTgAGABhBLcBj0CfRsxcPdVclZGGzWPYJgryAYMY/4GILwCOTXACC6vven68udWahNDa1r6/2hRDaFATiREEqwgv1TLxwG1DRlTLaEybIljuYzacpw3mrRdUMg/NfRQHRLVaAJdqOgACEwEAgAAAAABckYKDAAAAAF/0/YEAAA==

ESNI for tls13.1d.pw.:
	DH:		0x001D/0x2EE9241C7E8088800F60E0E660AFFA373DC7ECDE7C9D86726FF586EB68784D38
	DH:		0x0018/0x04B7018F409F46CC5C3DD55C959186CD63D8260AF2018318FF81882F008E4D70020BABEF7A7EBCB9D59A84D0DAD6BEBFDA1443685013891104AB082FD532F1C06D434654CB684C9B2258EE63369CA70DE6AD1754320FCD7D140744B55A00976A3A
	Cipher:		0x1301
	Not-Before:	2019-03-20 00:00:03 +0000 UTC
	Not-After:	2021-01-06 00:00:01 +0000 UTC

DNS

Uses github.com/miekg/dns for DNS.