Which secure protocol is recommended for Vault-LDAP integration?

The recommended secure protocol for Vault-LDAP integration is LDAPs. This is the secure version of the Lightweight Directory Access Protocol (LDAP) and it operates over SSL (Secure Sockets Layer) or TLS (Transport Layer Security). Using LDAPs ensures that the communication between the CyberArk Vault and the LDAP server is encrypted, providing confidentiality and integrity for the sensitive user and authentication information being transmitted.

This is particularly important in environments where security is paramount, as using plain LDAP (without security) could expose sensitive data to potential interception by malicious actors. Implementing LDAPs helps organizations comply with security standards and protect their directory information from unauthorized access.

In contrast, the other protocols listed do not provide the necessary secure environment for LDAP integration. HTTP is not secure and can expose data during transit. SSH is primarily used for secure shell access, not for LDAP purposes, while FTP is also an insecure protocol typically used for file transfers and does not relate to directory services. Hence, LDAPs stands out as the appropriate choice for securely integrating the Vault with LDAP.