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- Date: 20 NOV 92 21:05:50 GMT
- Newsgroups: vmsnet.networks.tcp-ip.multinet
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- X-RFC822-From: adelman (Kenneth Adelman) @ TGV.COM
- From: adelman@TGV.COM
- Subject: Re: NFS questions on mounted filesystems and security
- Organization: The INFO-MULTINET Community
- Message-ID: <36A00FB320NOV92210550@TGV.COM>
- Nntp-Posting-Host: Mvb.Saic.Com
- Lines: 40
-
- > After experimenting with NFS for a while there are a couple
- > of questions left unanswered. I hope you can help me to find
- > the answers on the following questions:
-
- > 1. Apart from the SHOW DEV NFS, is there a way to see what
- > filesystems are mounted on remote systems?
-
- Sort of. The logical names MULTINET_NFSMOUNT_NFSx tell you
- what was mounted where. Note that these were only intended for internal
- use and the format of the logical names changes in MultiNet V3.2 to
- add an additional field (the binary /SEMANTICS value).
-
- > 2. What does the /SEMANTICS=(NOVMS_ACCESS_CHECK) qualifier do
- > when supplied with the NFSMOUNT command? I know what's on
- > page 6-5 of the manual. But without this semantic quali-
- > fier I have no access to directories I own on the unix
- > system and which are nonaccessible to the world. It looks
- > like the NFS RPC query on the target unix system runs
- > under a username which has no access to such a directory.
- > What danger is in using this sematic??
-
- If means that the NFS Client will do a simple UNIX-style access check
- without checking any ACLs or firing any security alarms which may be set
- on the file. The switch was only added for compatibility with MultiNet V3.0's
- behavior which only acted like this.
-
- > 3. In relation with the first question: where does the client
- > save it's information on mounted filesystems, in order to
- > survive a reboot? Or is the information in NFS_MOUNT*.COM
- > used to survive such a reboot?
-
- It doesn't. You need to remount things using NFS_MOUNT.COM at every boot.
-
- > 4. Do I *really* need to create this NFS_MOUNT*.COM command
- > procedures, or is there a Unix-like fstab approach?
-
- You need to create the command file.
-
- Ken
-