I just installed the SFTP service on one of our servers. How do I access it? How do I login to it? thanks.
Firstly you will want to make sure it's configured and started:
SFTP/SCP server
From there you're going to want to use an SFTP tool to connect to the host. It should be listening on the IP/Port specified, you will need to login if you've set up those accounts and then when you transfer files they will go to the SFTP root folder specified.
Install a client WinSCP which is free and use credentials such as IP address of solarwinds server on which SFTP is running, Port 22 (allowed on firewall), username & password created while configuring SFTP.