Select Code to Download

host.fqdn.tld: channel 0: new [client-session]
host.fqdn.tld: Requesting channel_open for channel 0.
...
host.fqdn.tld: channel 1: new [client-session]
host.fqdn.tld: Requesting channel_open for channel 1.
host.fqdn.tld: Channel open failure: 1: reason 4: Server supports one 
+session per SSH client

$  ssh -v localhost -s sftp
...
...
debug1: Sending env LC_MESSAGES = en_AG.utf8
debug1: Sending env LANG = en_US.UTF-8
debug1: Sending subsystem: sftp