Hi,
I want to use SFTP to store backup of different applications in our Infrastructure and have deployed Ubuntu server which has built in SFTP. Everything works fine if I use local account and local directory to store backups.I have used below link to configure it
https://www.digitalocean.com/community/tutorials/how-to-enable-sftp-without-shell-access-on-ubuntu-16-04

Now, to store backup, I want to mount NFS or CIFS share.
1) My initial challenge is that I cannot mount NFS/CIFS share without “Sudo”.
2) If I use kerbros authentication at NFS server level then I am not able to mount the share, may be because I am using “ Sudo"and NFS server does not authenticate that.I am not sure how to mount NFS share using LDAP credentials.
3) I am able to mount CIFS share using Sudo mount -t CIFS -O LDAPUsername Password, where username is the user who has permission on that CIFS share.
4) Now, as I have mounted the CIFS share on the server, I want to use LDAP account to copy data on CIFS share from application.

CIFS/NFS share - testbackup
Directory on which CIFS/NFS share is mounted - /sftp/backup
Path on which Application should store the backup - /sftp/backup/application1 (Similarly any other application is there then /sftp/backup/application 2 or 3 and so on)
I tired changing the ownership of /sft/backup directory to ldap account using "sudo chown LDAPusername /sftp/backup” but it does not change the ownership and still shows root account as owner.
I want LDAP user to have privileges on /sftp/backup directory and use that account to write backup under this directory remotely from the application.
Apologies, if I have missed something as I do not have much experience in managing linux based systems and configuring this for the first time.