We're having some problems with our backups over SFTP and also when trying to upload files to servers. We have 1 CUCM Publisher with 3 subscribers, 2 Unity Connection servers and 2 IM and Prescence servers. Currently running 10.5.2.11900-3
For the most part it is working fine however one of the CUCM subscribers and one of the IM and Presence servers fails on backups and cannot connect to the sftp server for file uploads.
When trying to run the backup we get the error:
ERROR: Unable to transfer the tar file over SFTP channel as currently configured SFTP server does not support output stream, Backup Completed...
When trying to upload files we get the issue below:
As I say this is only affecting 2 of the servers. All of the others can connect absolutely fine. I am able to ping the sftp server from all servers and I have rebooted them both.
We are using SolarWinds sftp server.
Any ideas what could be causing this?
Have you tried using other SFTP servers such as freeFTPd or fileZilla to narrow down the issue?
Are they all in the same network?
Have you made sure there's no firewall or ACL blocking communication?