Let's Debug

Test result for fluxer.umbc.edu using http-01

A fatal issue occurred during the DNS lookup process for fluxer.umbc.edu/A.
DNS response for fluxer.umbc.edu/A did not have an acceptable response code: SERVFAIL
A fatal issue occurred during the DNS lookup process for fluxer.umbc.edu/AAAA.
DNS response for fluxer.umbc.edu/AAAA did not have an acceptable response code: SERVFAIL
A fatal issue occurred during the DNS lookup process for fluxer.umbc.edu/CAA.
DNS response for fluxer.umbc.edu/CAA did not have an acceptable response code: SERVFAIL
Fatal
No valid A or AAAA records could be ultimately resolved for fluxer.umbc.edu. This means that Let's Encrypt would not be able to to connect to your domain to perform HTTP validation, since it would not know where to connect to.
No A or AAAA records found.
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for fluxer.umbc.edu is: edu
Debug
2 Certificates contributing to rate limits for this domain

Serial: 330894161449250604659477413999310636218778
NotBefore: 2020-08-27 04:35:48 +0000 UTC
Names: [cloud.pi2.cs.umbc.edu command.pi2.cs.umbc.edu compute.pi2.cs.umbc.edu jupyter.pi2.cs.umbc.edu photomaster.irc.umbc.edu pi2.cs.umbc.edu robosim.pi2.cs.umbc.edu rohan.pi2.cs.umbc.edu sage2.pi2.cs.umbc.edu zoneminder.pi2.cs.umbc.edu]

Serial: 297090086697076874924493729908889977426586
NotBefore: 2020-08-27 03:43:11 +0000 UTC
Names: [cloud.pi2.cs.umbc.edu command.pi2.cs.umbc.edu compute.pi2.cs.umbc.edu jupyter.pi2.cs.umbc.edu photomaster.irc.umbc.edu pi2.cs.umbc.edu rohan.pi2.cs.umbc.edu sage2.pi2.cs.umbc.edu zoneminder.pi2.cs.umbc.edu]

Debug
The current status.io status for Let's Encrypt
Operational

Submitted Sep 1 14:12:12 2020. Sat in queue for 1ms. Completed in 1m4s. Hide verbose information.