Yes, I also tried to set a domain and create a CERT based on the name and then add the domain in hosts file to try it again by name but it failed.
vyos:~ sudo sstpc --cert-warn --log-level 4 --log-stderr --user=test --pass=test123 d.iproute.net noipdefault refuse-eap noauth debug logfile tmp.log require-mschap-v2 refuse-mschap refuse-chap require-mppe
May 1 20:04:05 sstpc[27461]: Resolved d.iproute.net to 116.203.60.96
May 1 20:04:05 sstpc[27461]: Connected to d.iproute.net
May 1 20:04:05 sstpc[27461]: The certificate did not match the host: d.iproute.net
May 1 20:04:05 sstpc[27461]: Server certificated failed verification, ignoring
May 1 20:04:05 sstpc[27461]: Sending Connect-Request Message
May 1 20:04:05 sstpc[27461]: SEND SSTP CRTL PKT(14)
May 1 20:04:05 sstpc[27461]: TYPE(1): CONNECT REQUEST, ATTR(1):
May 1 20:04:05 sstpc[27461]: ENCAP PROTO(1): 6
May 1 20:04:05 sstpc[27461]: RECV SSTP CRTL PKT(48)
May 1 20:04:05 sstpc[27461]: TYPE(2): CONNECT ACK, ATTR(1):
May 1 20:04:05 sstpc[27461]: CRYPTO BIND REQ(4): 40
May 1 20:04:05 sstpc[27461]: Started PPP Link Negotiation
May 1 20:04:05 sstpc[27461]: RECV SSTP CRTL PKT(20)
May 1 20:04:05 sstpc[27461]: TYPE(6): DISCONNECT, ATTR(1):
May 1 20:04:05 sstpc[27461]: STATUS INFO(2): 12
May 1 20:04:05 sstpc[27461]: Sending Disconnect Ack Message
May 1 20:04:05 sstpc[27461]: SEND SSTP CRTL PKT(8)
May 1 20:04:05 sstpc[27461]: TYPE(7): DISCONNECT ACK, ATTR(0):
May 1 20:04:05 sstpc[27461]: Connection was aborted, Reason was not known
**Error: Connection was aborted, Reason was not known, (-1)
vyos@vyos:~ May 1 20:04:05 sstpc[27462]: Terminating on Terminated (15)
/dev/pts/2: no device specified and stdin is not a tty