Connection reset by peer

[0xJs]

Hi, I wanted to try this in my lab to exploit RBCD webclient (https://www.bussink.net/rbcd-webclient-attack/). But trying this tool against the dc gives the following error. The DC Is running AD Directory services, DNS and DHCP. DNS is configured on my kali machine.

┌──(user㉿pentest)-[/opt/LdapRelayScan]
└─$ python3 LdapRelayScan.py -dc-ip 10.0.0.3 -u labuser -p 'Password01' -method BOTH                                                                                                                                                                              1 ⨯

~Domain Controllers identifed~
   dc01.lab.local

~Checking DCs for LDAP NTLM relay protections~
   dc01.lab.local
      [+] (LDAP) SERVER SIGNING REQUIREMENTS NOT ENFORCED! 
Traceback (most recent call last):
  File "/opt/LdapRelayScan/LdapRelayScan.py", line 95, in DoesLdapsCompleteHandshake
    ssl_sock.do_handshake()
  File "/usr/lib/python3.9/ssl.py", line 1309, in do_handshake
    self._sslobj.do_handshake()
ConnectionResetError: [Errno 104] Connection reset by peer

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/LdapRelayScan/LdapRelayScan.py", line 198, in <module>
    if DoesLdapsCompleteHandshake(dc) == True:
  File "/opt/LdapRelayScan/LdapRelayScan.py", line 106, in DoesLdapsCompleteHandshake
    print("Unexpected error during LDAPS handshake: " + e)
TypeError: can only concatenate str (not "ConnectionResetError") to str