10-11-2018, 12:21 PM
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#2
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LQ Guru
Registered: May 2005
Location: Atlanta Georgia USA
Distribution: Redhat (RHEL), CentOS, Fedora, CoreOS, Debian, FreeBSD, HP-UX, Solaris, SCO
Posts: 7,831
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sftp relies upon ssh and is likely already built into your system.
Type "which sftp" to see if the command is there. (That is the one you use to initiate outbound connections.)
Type "lsof -i :22" to see if sshd is already LISTENing. That process would respond to sftp inbound connections.
You can sftp to any account you can ssh to unless you modify things to prevent it.
In and of itself ssh/sftp (and scp) don't use much in the way of resources. The question would be what else the server is doing and/or how much file transferring you intend to do with sftp. If you're transferring TB of information more memory and I/O is going to help.
You may want to look into sftp user jailing and restrictions to only allow sftp (i.e. not ssh login) depending on what you're doing.
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