# Block FTP to cdn1.discovery.com entirely # (Most devices will fall back to HTTP/HTTPS or fail silently)
access-list 101 deny tcp any host cdn1.discovery.com eq 21 access-list 101 deny tcp any host cdn1.discovery.com eq 20
If you are searching for cdn1.discovery ftp because you saw it in a log file, website source code, or network scan, there is a strong chance you have encountered a legacy endpoint that was never intended to be public. Over time, many companies have decommissioned public FTP access, but DNS records or old configuration files remain searchable. cdn1.discovery ftp
For B2B file exchange, MFT platforms (e.g., GoAnywhere, MOVEit) provide encrypted, auditable transfers over SFTP, FTPS, or AS2—never raw FTP. # Block FTP to cdn1
