SSH known_hosts: How Host Key Verification Actually Works (and What to Do When It Breaks)

Thu, 10 Sep 2026 00:00:00 +0000

The warning nobody should click past
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Every SSH and SFTP client has the same scary moment: you connect to a server you’ve connected to a hundred times before, and instead of a normal prompt you get something like this from OpenSSH:

SFTP, FTP, FTPS: Protocol Behind the Adapters

Wed, 09 Sep 2026 00:00:00 +0000

Three protocols, one job, very different guts
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FTP, FTPS, and SFTP all claim to do the same thing — move a file from one place to another — and partners use the names almost interchangeably, which is exactly the problem. They are three genuinely different protocols with different port models, different security properties, and different failure modes, and the SFTP Server Adapter and SFTP Client Adapter you configure in Sterling only make sense once you know which one you’re actually running. This post goes through each one on its own terms, then spends the back half on SFTP specifically, since that’s what carries the overwhelming majority of partner traffic in B2Bi.

Security on Newton Rocha

SSH known_hosts: How Host Key Verification Actually Works (and What to Do When It Breaks)

The warning nobody should click past #

SFTP, FTP, FTPS: Protocol Behind the Adapters

Three protocols, one job, very different guts #

The warning nobody should click past
#

Three protocols, one job, very different guts
#