From mboxrd@z Thu Jan 1 00:00:00 1970 From: "J. Bruce Fields" Subject: Re: Problems Migrating from NFSv3 to NFSv4 Date: Wed, 18 Nov 2009 16:14:19 -0500 Message-ID: <20091118211419.GA2650@fieldses.org> References: <4B01A0B5.80501@informatik.uni-wuerzburg.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-nfs@vger.kernel.org To: Christopher Metter Return-path: Received: from fieldses.org ([174.143.236.118]:47666 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753197AbZKRVNp (ORCPT ); Wed, 18 Nov 2009 16:13:45 -0500 In-Reply-To: <4B01A0B5.80501-jNDFPZUTrfSeRcrpBB1ZFQkon6kHRKkiG9Ur7JDdleE@public.gmane.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: On Mon, Nov 16, 2009 at 07:57:57PM +0100, Christopher Metter wrote: > Hi there folks! > > Im trying to migrate from NFSv3 to NFSv4. I've read diverse Articles and > Howtos, but i cant find a solution to my problem. > > For better understanding: My NFSv4 Root is /srv/data/, a Folder that > existed before and has diverse Subfolders in it. These Folders are > really there and are not mounted by "mount --bind". > > The Servers IP: 192.168.0.10 > Client1: 192.168.0.1 > Client2: 192.168.0.2 > > Setup with NFSv3: > 2 Folders (scratch and software) were shared for 2 Clients. In Scratch > both clients had full RW-access and on software only Client2 had rw, > Client1 had RO. > Config: > /srv/data/scratch-all *(rw,async,no_root_squash,nohide,no_subtree_check) > /srv/data/software > 10.0.12.4(ro,sync,no_root_squash,nohide,no_subtree_check) > 10.0.12.5(rw,sync,no_root_squash,nohide,no_subtree_check) > > My NFSv4 Config (from Server/etc/exports) > |/srv/data/ > 192.168.0.2(rw,sync,fsid=0,insecure,no_root_squash,no_subtree_check) > 192.168.0.1(rw,sync,fsid=0,insecure,no_root_squash,no_subtree_check) > /srv/data/scratch *(rw,async,no_root_squash,no_subtree_check) > /srv/data/software 192.168.0.1(ro,sync,no_root_squash,no_subtree_check) > 192.168.0.2(rw,sync,no_root_squash,no_subtree_check) > | > After that i mounted from Client1 and Client2 the Sharefolders > directrly (e.g. software: mount -t nfs4 -o intr,hard,rw > 192.168.0.10:/software /targetfolder), everything works perfect, every > Client has its specific rights and so on. > > But if im mounting Servers Root (mount -t nfs4 -o intr,hard,rw > 192.168.0.10:/ /targetfolder) from Client1 I do have complete RW Access > to the full "Data" folder, even with RW for Software (which i set for > RO). Exports don't operate on "folders", only on filesystems: if you export /srv/data/ read-write, and if /srv/data/software is on the same filesystem as /srv/data, then /srv/data will also be exported, and also writeable. --b. > I also do see folders I didnot specificly share (e.g. there is a > folder 'lost+found' in /srv/data which should not be shared). > > My Question is: > What do i have to do, that even if im mounting Servers root, I only can > see and access the specificly for this client configurated exports? > (Also with correct access, of course) > Is it possible that way or do i have to make a complete new folder, set > it as new root, mount --bind the needed folders in there and then share > them? > > I tried setting Roots Parameters for Client1 to RO, but after that i > even didnt have RW to /scratch per direct mount. > > What am I doing wrong? Im looking forward to any feedback. > > > Greetings, > Christopher > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html