Check if anonymous bind was accepted by server:

$ ldapsearch -H ldap://server -x
 
# extended LDIF
#
# LDAPv3
# base <dc=grinn-global,dc=com> (default) with scope subtree
# filter: (objectclass=*)
# requesting: ALL
#
 
# search result
search: 2
result: 32 No such object
 
# numResponses: 1

List root entries:

$ ldapsearch -H ldap://server -x -LLL -s base -b '' namingContexts
dn:
namingContexts: dc=example,dc=org

~/.ldaprc

BASE    dc=example,dc=org
URI     ldap://server
BINDDN  cn=admin,dc=example,dc=org

and verify if it works. Following command will ask for password for user “cn=admin”

ldapsearch -x -W

$ ldapsearch -x -LLL -s base -b "" supportedSASLMechanisms
 
dn:
supportedSASLMechanisms: SCRAM-SHA-1
supportedSASLMechanisms: GS2-IAKERB
supportedSASLMechanisms: GS2-KRB5
supportedSASLMechanisms: GSSAPI
supportedSASLMechanisms: GSS-SPNEGO
supportedSASLMechanisms: DIGEST-MD5
supportedSASLMechanisms: OTP
supportedSASLMechanisms: CRAM-MD5
supportedSASLMechanisms: NTLM

<code bash> ldapsearch -x -W -D 'cn=admin,dc=example,dc=org' ldapsearch -x -W -D 'uid=nextcloudsystemuser,ou=it,dc=grinn-global,dc=com' </codE>