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Remote SFTP connection issue in ÃÛ¶¹ÊÓƵ Campaign Standard

Last update: Tue Mar 11 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

Connecting to an external Secure File Transfer Protocol (SFTP) server from ÃÛ¶¹ÊÓƵ Campaign results in a connection error, disrupting workflows that rely on successful data transfers via SFTP. To resolve this issue, update host key algorithms, check directory permissions, and review encryption protocols.

Description description

Environment

ÃÛ¶¹ÊÓƵ Campaign Standard (ACS)

Issue/Symptoms

When connecting to an external SFTP server from ÃÛ¶¹ÊÓƵ Campaign, the connection error, CRL-290003 Upload error in cURL.  appears. The symptoms include:

  • Inability to perform key-based authentication.
  • Persistent errors when attempting file uploads or directory listings.
  • Potential host identification issues due to outdated SSH key algorithms.

Resolution resolution

To resolve the issue with connecting to an external SFTP server from ÃÛ¶¹ÊÓƵ Campaign, follow these steps:

  1. Modify the sshd configuration on your server by adding HostKeyAlgorithms +ssh-rsa. This allows compatibility with older SSH keys used by some systems and can resolve negotiation failures during connection attempts.
  2. Verify and adjust permissions on directories within the SFTP server as needed, ensuring that files can be uploaded without encountering permission denied errors.
  3. Confirm that encryption protocols supported by both client and server are compatible. Update configurations, if necessary, based on available cipher suites and MACs (Message Authentication Codes).
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