Note: Share should be unmounted from all the clients before making any configuration changes on the NFS server else the share will become stale Root Cause Mounting the nfs share from a RHEL NFS server giver error "mount.nfs: access denied by server while mounting" Ensure share is being exported to client in question.Try to mount the NFS share on NFS client. home/export *(rw,sync,no_root_squash,insecure) Include insecure option in /etc/exports on NFS server like below: # cat /etc/exports Rather than delegating security to the NAS, it should be done at the docker-host level.Error is seen in the log: mount: mount.nfs: access denied by server while mounting *.*.*.*:/home/share However, if you have a docker-styled host, it might be worthwhile to play with iptables (or the firewall of your choice) on the docker-host, to prevent the other containers from having access to the NAS in the first place. Mind you, if you're already using CIFS and it's working well, and it's giving you good access control, there's no good reason to switch (although, you'd have to turn the NFS off for security). However, either one of those requires cooperation from the host, which would probably not be possible in the case of your NAS. Then the security comes down to establishing the tunnel. A better option is to not allow direct connection to the NFS service from the host, and instead require going through some secure tunnel, like SSH port forwarding. NFSv4 has an optional security model based on Kerberos. If you absolutely MUST use NFS, there are a couple of ways to secure it. It isn't meant to manage access, it's meant to not be exposed to systems that shouldn't access it, in the first place. A NAS, as you're using, is actually a perfect example of this. For that use case, NFS offers greater simplicity and speed. In such cases, it is the intention to share the drive itself with a machine, but simply do it over Ethernet instead of SATA. NFS is most useful for external hard drives connected via Ethernet, and virtual cloud storage. This may sound like NFS is distinctively inferior to CIFS, but they are actually meant for a different purpose. In that respect, it is similar to FTP or WebDAV, but with the ability to read/write arbitrary subsets of a file, as well as a couple of other features related to locking. It is up to the client to actually manage the permissions of which user is allowed to access which files.ĬIFS, on the other hand, manages users on the server side, and may provide a per-user view and access of files. The client actually receives a naked view of the shared subset of the filesystem, including (at least as of NFSv4) a description of which users can access which files. NFS is essentially a tiny step up from directly sharing /dev/sda1. The difference between the two might not initially be obvious. So I think we can't use mount -t nfs with credentials.ĬIFS is a file sharing protocol. I couldn't find a mount -t nfs option example with username /password. Mount.nfs: an incorrect mount option was specified mount -t nfs -o nfsvers=3,domain=mydomain,username=svc_account,password=password,noserverino :/share/folder /opt/testnas Mount.nfs: remote share not in 'host:dir' formatīelow command doesnt' seem to work either. mount -t nfs -o nfsvers=3,domain=mydomain,username=svc_account,password=password,noserverino ///share/folder /opt/testnas So just trying to find out whether using nfs or cifs will make any difference. I have been told that we should use nfs option instead of cifs. I can mount on container startup mount -t cifs -osec=ntlmv2,domain=mydomain,username=svc_account,password=password,noserverino ///share/folder /opt/testnas The below command works fine on a share supporting Unix/Windows. So the only alternate solution I have is mounting this nas folder during container startup with a username /password. So this linux to linux mounting will not work for me. I am using containerized application and this file system export to the host machine will be a security issue as any container running on the host will be able to use the share.
The Storage team has exported it to the host server and I can access it at /nas/data. I am trying to mount a NAS using nfs for an application.
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