Troubleshooting NFS/SFU
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Troubleshooting NFS/SFU
by David Higgs
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I've tried to configure NFS and am nearly all the way there, but it
seems like I've hit a pretty big stumbling block. I've got OpenBSD 4.1-stable (10.0.0.1) with an NFS export of my home directory. I also have a Windows XP machine (10.0.0.2) and installed the SFU 3.5 NFS client. [/etc/exports] /home/david -mapall=david:guest -network=10.0.0.0 -mask=255.255.255.0 I can successfully mount this share locally and perform both reads and writes. Without any of SFU's User Name Mapping configured, I can mount the share with uid/gid of -2/-2 as advertised. Appropriately, I cannot access any files or directories that are not world-readable. However, inside a chmod-777 directory, I cannot create files or directories (which might be as expected). After configuring User Name Mapping to map my Windows account to the UNIX account, I can mount the share with the expected uid/gid. Although I can read user-only files and directories, I still cannot create any files or directories. Windows keeps reporting that the drive has write-protection enabled. I know this isn't a SFU help forum, but any ideas to try or tips on troubleshooting the NFS side is more than welcome. Thanks in advance. --david P.S. On an unrelated sidenote, does mountd always bind to the same ports by default? If not, is there a way to fix them at certain values, so that PF rules can be written to match? Linux rpc.mountd(8) supposedly has a -p option that can be used for this purpose. |
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Re: Troubleshooting NFS/SFU
by ben calvert
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On May 13, 2007, at 8:44 PM, David Higgs wrote:
> I've tried to configure NFS and am nearly all the way there, but it > seems like I've hit a pretty big stumbling block. I've got OpenBSD > 4.1-stable (10.0.0.1) with an NFS export of my home directory. I also > have a Windows XP machine (10.0.0.2) and installed the SFU 3.5 NFS > client. Are most of your clients going to be windows machines? if so, you should thing seriously about using samba. ( you should also read http://www.openbsd.org/mail.html and include all even vaguely related config files and output of things like dmesg and nfsstat ) > > [/etc/exports] > /home/david -mapall=david:guest -network=10.0.0.0 -mask=255.255.255.0 i notice you're using 'david:guest' here... the first question springs to mind is to verify that user david is in group guest? > > I can successfully mount this share locally and perform both reads > and writes. > > Without any of SFU's User Name Mapping configured, I can mount the > share with uid/gid of -2/-2 as advertised. Appropriately, I cannot > access any files or directories that are not world-readable. However, > inside a chmod-777 directory, I cannot create files or directories > (which might be as expected). > > After configuring User Name Mapping to map my Windows account to the > UNIX account, I can mount the share with the expected uid/gid. Please provide specifics? do you mean with the david:guest uid:gid mentioned above? > Although I can read user-only files and directories, I still cannot > create any files or directories. what user:group are the parent directory? david:guest, or something like david:david ? what permissions are they? > Windows keeps reporting that the > drive has write-protection enabled. > What do the log files on the server say? > I know this isn't a SFU help forum, but any ideas to try or tips on > troubleshooting the NFS side is more than welcome. Thanks in advance. > > --david > > P.S. On an unrelated sidenote, does mountd always bind to the same > ports by default? man mountd ( http://www.openbsd.org/cgi-bin/man.cgi? query=mountd&apropos=0&sektion=0&manpath=OpenBSD +Current&arch=i386&format=html ) will answer this for you > If not, is there a way to fix them at certain > values, so that PF rules can be written to match? Linux rpc.mountd(8) > supposedly has a -p option that can be used for this purpose. |
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Re: Troubleshooting NFS/SFU
by David Higgs
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On 5/14/07, Ben Calvert <ben@...> wrote:
> > On May 13, 2007, at 8:44 PM, David Higgs wrote: > > > I've tried to configure NFS and am nearly all the way there, but it > > seems like I've hit a pretty big stumbling block. I've got OpenBSD > > 4.1-stable (10.0.0.1) with an NFS export of my home directory. I also > > have a Windows XP machine (10.0.0.2) and installed the SFU 3.5 NFS > > client. > > Are most of your clients going to be windows machines? if so, you > should thing seriously about using samba. This is my private network and I've used samba previously; I'm just trying to learn how to configure NFS. I'll go back to samba if I can't figure this out. > ( you should also read http://www.openbsd.org/mail.html and include > all even vaguely related config files and output of things like dmesg > and nfsstat ) I've googled quite a bit on this as well as searched MARC. I don't know any other files to include other than /etc/exports. [david@david]$ dmesg OpenBSD 4.1 (GENERIC) #1435: Sat Mar 10 19:07:45 MST 2007 deraadt@...:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel Pentium III ("GenuineIntel" 686-class, 512KB L2 cache) 599 MHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE real mem = 267993088 (261712K) avail mem = 236847104 (231296K) using 3302 buffers containing 13524992 bytes (13208K) of memory mainbus0 (root) bios0 at mainbus0: AT/286+ BIOS, date 10/13/00, BIOS32 rev. 0 @ 0xfd790, SMBIOS rev. 2.1 @ 0xefa30 (49 entries) bios0: Dell Computer Corporation XPST600 apm0 at bios0: Power Management spec V1.2 apm0: AC on, battery charge unknown apm0: flags 30102 dobusy 0 doidle 1 pcibios0 at bios0: rev 2.1 @ 0xfd790/0x870 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdf20/192 (10 entries) pcibios0: PCI Interrupt Router at 000:07:0 ("Intel 82371FB ISA" rev 0x00) pcibios0: PCI bus #1 is the last bus bios0: ROM list: 0xc0000/0xb800 0xcb800/0x800 0xcc000/0x800 0xe0000/0x4000! 0xe4000/0xc000 acpi at mainbus0 not configured cpu0 at mainbus0 pci0 at mainbus0 bus 0: configuration mode 1 (no bios) pchb0 at pci0 dev 0 function 0 "Intel 82443BX AGP" rev 0x03 ppb0 at pci0 dev 1 function 0 "Intel 82443BX AGP" rev 0x03 pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "NVIDIA GeForce3" rev 0xa3 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) pcib0 at pci0 dev 7 function 0 "Intel 82371AB PIIX4 ISA" rev 0x02 pciide0 at pci0 dev 7 function 1 "Intel 82371AB IDE" rev 0x01: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility wd0 at pciide0 channel 0 drive 0: <Maxtor 52049H3> wd0: 16-sector PIO, LBA, 19473MB, 39882528 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <SONY, CD-RW CRX100E, 1.0n> SCSI0 5/cdrom removable cd0(pciide0:1:0): using PIO mode 4, DMA mode 2 uhci0 at pci0 dev 7 function 2 "Intel 82371AB USB" rev 0x01: irq 9 usb0 at uhci0: USB revision 1.0 uhub0 at usb0 uhub0: Intel UHCI root hub, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered piixpm0 at pci0 dev 7 function 3 "Intel 82371AB Power" rev 0x02: SMI iic0 at piixpm0 emu0 at pci0 dev 14 function 0 "Creative Labs SoundBlaster Live" rev 0x05: irq 3 ac97: codec id 0x54524123 (TriTech Microelectronics TR28602) audio0 at emu0 "Creative Labs PCI Gameport Joystick" rev 0x05 at pci0 dev 14 function 1 not configured skc0 at pci0 dev 16 function 0 "3Com 3c940" rev 0x10, Yukon (0x1): irq 9 sk0 at skc0 port A, address 00:0a:5e:5c:50:41 eephy0 at sk0 phy 0: Marvell 88E1011 Gigabit PHY, rev. 3 xl0 at pci0 dev 17 function 0 "3Com 3c905C 100Base-TX" rev 0x74: irq 10, address 00:01:03:c3:66:4e bmtphy0 at xl0 phy 24: Broadcom 3C905C internal PHY, rev. 6 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec biomask fb65 netmask ff65 ttymask ffe7 pctr: 686-class user-level performance counters enabled mtrr: Pentium Pro MTRR support ugen0 at uhub0 port 1 ugen0: APC Back-UPS ES 750 FW:819.z2.D USB FW:z2, rev 1.10/1.06, addr 2 dkcsum: wd0 matches BIOS drive 0x80 root on wd0a rootdev=0x0 rrootdev=0x300 rawdev=0x302 uhub1 at uhub0 port 2 uhub1: ATEN International product 0x7000, rev 1.10/1.00, addr 3 uhub1: 4 ports with 4 removable, self powered uhidev0 at uhub1 port 1 configuration 1 interface 0 uhidev0: Logitech USB Receiver, rev 1.10/21.00, addr 4, iclass 3/1 ukbd0 at uhidev0: 8 modifier keys, 6 key codes wskbd1 at ukbd0 mux 1 wskbd1: connecting to wsdisplay0 uhidev1 at uhub1 port 1 configuration 1 interface 1 uhidev1: Logitech USB Receiver, rev 1.10/21.00, addr 4, iclass 3/1 uhidev1: 4 report ids ums0 at uhidev1 reportid 1: 16 buttons and Z dir. wsmouse0 at ums0 mux 0 uhid0 at uhidev1 reportid 2: input=2, output=0, feature=0 uhid1 at uhidev1 reportid 3: input=1, output=0, feature=0 uhid2 at uhidev1 reportid 4: input=3, output=0, feature=0 uhidev2 at uhub1 port 2 configuration 1 interface 0 uhidev2: Tangtop USBPS2, rev 1.10/0.01, addr 5, iclass 3/1 ukbd1 at uhidev2: 8 modifier keys, 6 key codes wskbd2 at ukbd1 mux 1 wskbd2: connecting to wsdisplay0 uhidev3 at uhub1 port 2 configuration 1 interface 1 uhidev3: Tangtop USBPS2, rev 1.10/0.01, addr 5, iclass 3/1 uhidev3: 3 report ids ums1 at uhidev3 reportid 1: 5 buttons and Z dir. wsmouse1 at ums1 mux 0 uhid3 at uhidev3 reportid 2: input=2, output=0, feature=0 uhid4 at uhidev3 reportid 3: input=1, output=0, feature=0 [david@david]$ rpcinfo -p program vers proto port 100000 2 tcp 111 portmapper 100000 2 udp 111 portmapper 100003 2 udp 2049 nfs 100003 3 udp 2049 nfs 100003 2 tcp 2049 nfs 100003 3 tcp 2049 nfs 100005 1 udp 626 mountd 100005 3 udp 626 mountd 100005 1 tcp 929 mountd 100005 3 tcp 929 mountd [david@david]$ nfsstat Client Info: Rpc Counts: Getattr Setattr Lookup Readlink Read Write Create Remove 8 0 136 0 0 0 1 1 Rename Link Symlink Mkdir Rmdir Readdir RdirPlus Access 0 0 0 0 0 8 0 39 Mknod Fsstat Fsinfo PathConf Commit 0 3 2 0 0 Rpc Info: TimedOut Invalid X Replies Retries Requests 0 0 0 0 198 Cache Info: Attr Hits Misses Lkup Hits Misses BioR Hits Misses BioW Hits Misses 168 8 13 136 0 0 0 0 BioRLHits Misses BioD Hits Misses DirE Hits Misses 0 0 0 0 4 4 Server Info: Getattr Setattr Lookup Readlink Read Write Create Remove 213 0 291 26 7529 0 21 1 Rename Link Symlink Mkdir Rmdir Readdir RdirPlus Access 0 0 0 29 0 41 188 39 Mknod Fsstat Fsinfo PathConf Commit 0 97 8 6 0 Server Ret-Failed 198 Server Faults 0 Server Cache Stats: Inprog Idem Non-idem Misses 0 0 0 8499 Server Write Gathering: WriteOps WriteRPC Opsaved 0 0 0 On the XP side: Z:\>mount Local Remote Properties ------------------------------------------------------------------------------- Z: \\10.0.0.1\home\david UID=1000, GID=31 rsize=32768, wsize=32768 mount=soft, timeout=1.0 retry=1, locking=no fileaccess=755, lang=ANSI casesensitive=no Z:\>mkdir test The media is write protected. After a failed mkdir from my windows side: Server[GetAttr, Mkdir, and Ret-Failed] went up by one; Server Cache Misses went up by two. > > > > > [/etc/exports] > > /home/david -mapall=david:guest -network=10.0.0.0 -mask=255.255.255.0 > > i notice you're using 'david:guest' here... the first question > springs to mind is to verify that user david is in group guest? [david@david]$ id uid=1000(david) gid=31(guest) groups=31(guest), 0(wheel) > > > > > I can successfully mount this share locally and perform both reads > > and writes. > > > > Without any of SFU's User Name Mapping configured, I can mount the > > share with uid/gid of -2/-2 as advertised. Appropriately, I cannot > > access any files or directories that are not world-readable. However, > > inside a chmod-777 directory, I cannot create files or directories > > (which might be as expected). > > > > After configuring User Name Mapping to map my Windows account to the > > UNIX account, I can mount the share with the expected uid/gid. > > Please provide specifics? do you mean with the david:guest uid:gid > mentioned above? Yes. When I map the drive through Explorer, it prompts me to confirm the uid:gid I am connecting with (1000:31) or to select a different one. > > > Although I can read user-only files and directories, I still cannot > > create any files or directories. > > what user:group are the parent directory? david:guest, or something > like david:david ? what permissions are they? [david@david]$ ls -ld /home/david drwxr-xr-x 21 david guest 1024 May 13 23:11 /home/david > > > Windows keeps reporting that the > > drive has write-protection enabled. > > > > What do the log files on the server say? Absolutely nothing. I can mount, read, try to write, and unmount all without generating a single log message in /var/log/{messages,daemon,secure}. I'll try running portmap and mountd in debug mode tomorrow and see if anything jumps out at me. > > > I know this isn't a SFU help forum, but any ideas to try or tips on > > troubleshooting the NFS side is more than welcome. Thanks in advance. > > > > --david > > > > P.S. On an unrelated sidenote, does mountd always bind to the same > > ports by default? > > man mountd > ( http://www.openbsd.org/cgi-bin/man.cgi? > query=mountd&apropos=0&sektion=0&manpath=OpenBSD > +Current&arch=i386&format=html ) > will answer this for you The man page says to read the RFCs; the RFCs say to ask the portmapper; this confirms my original guess of "don't bet on it". > > > If not, is there a way to fix them at certain > > values, so that PF rules can be written to match? Linux rpc.mountd(8) > > supposedly has a -p option that can be used for this purpose. |
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Re: Troubleshooting NFS/SFU
by John Nietzsche
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Dear folks,
i am trying to get my windows boxes access nfs directly by means of SFU, too! I would like to have a global mount, say drive g: to mount from my home directories. Is it possible? How have you been doing in order to get a global drive mapping? Thanks in advance. On 5/14/07, David Higgs <higgsd@...> wrote: > I've tried to configure NFS and am nearly all the way there, but it > seems like I've hit a pretty big stumbling block. I've got OpenBSD > 4.1-stable (10.0.0.1) with an NFS export of my home directory. I also > have a Windows XP machine (10.0.0.2) and installed the SFU 3.5 NFS > client. > > [/etc/exports] > /home/david -mapall=david:guest -network=10.0.0.0 -mask=255.255.255.0 > > I can successfully mount this share locally and perform both reads and writes. > > Without any of SFU's User Name Mapping configured, I can mount the > share with uid/gid of -2/-2 as advertised. Appropriately, I cannot > access any files or directories that are not world-readable. However, > inside a chmod-777 directory, I cannot create files or directories > (which might be as expected). > > After configuring User Name Mapping to map my Windows account to the > UNIX account, I can mount the share with the expected uid/gid. > Although I can read user-only files and directories, I still cannot > create any files or directories. Windows keeps reporting that the > drive has write-protection enabled. > > I know this isn't a SFU help forum, but any ideas to try or tips on > troubleshooting the NFS side is more than welcome. Thanks in advance. > > --david > > P.S. On an unrelated sidenote, does mountd always bind to the same > ports by default? If not, is there a way to fix them at certain > values, so that PF rules can be written to match? Linux rpc.mountd(8) > supposedly has a -p option that can be used for this purpose. |
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Re: Troubleshooting NFS/SFU
by Emilio Perea
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On Tue, May 15, 2007 at 12:11:00PM -0300, John Nietzsche wrote:
> i am trying to get my windows boxes access nfs directly by means of > SFU, too! > I would like to have a global mount, say drive g: to mount from my > home directories. > > Is it possible? How have you been doing in order to get a global drive > mapping? I think it might be better to ask in the forums at the SFU website: http://www.interopsystems.com/tools (Unless you are having problems on the OpenBSD side.) |
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Re: Troubleshooting NFS/SFU
by David Higgs
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On 5/15/07, John Nietzsche <john.nietzsche@...> wrote:
> Dear folks, > > i am trying to get my windows boxes access nfs directly by means of SFU, too! > I would like to have a global mount, say drive g: to mount from my > home directories. > > Is it possible? How have you been doing in order to get a global drive mapping? > > Thanks in advance. I followed Microsoft's instructions for SFU and found that it worked quite well if all I cared about was read-only access. I didn't have any further success even after installing a bunch of SFU hotfixes (http://www.duh.org/interix/hotfixes.php). My troubleshooting seemed to indicate that the write requests were being denied somewhere inside the kernel, for reasons unknown. I didn't have the time or interest to pursue it any further, so I went back to samba and let the thread die. --david |
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Re: Troubleshooting NFS/SFU
by Daniel Melameth
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On 7/2/07, David Higgs <higgsd@...> wrote:
> I followed Microsoft's instructions for SFU and found that it worked > quite well if all I cared about was read-only access. I didn't have > any further success even after installing a bunch of SFU hotfixes > (http://www.duh.org/interix/hotfixes.php). > > My troubleshooting seemed to indicate that the write requests were > being denied somewhere inside the kernel, for reasons unknown. I > didn't have the time or interest to pursue it any further, so I went > back to samba and let the thread die. I have the exact same issue hereFreeBSD works fine, OpenBSD fails. I'm new to NFS, so I'm not too clear on the best way to troubleshoot this further, but if there's someone here who is good with NFS and cares to resolve the issue on OpenBSD, I'd be happy to work with them. Details below: Windows C:\Users\Daniel\Documents>mount Local Remote Properties ----------------------------------------------------------------------------- -- Z: \\openbsd\home\daniel UID=-2, GID=-2 rsize=32768, wsize=32768 mount=soft, timeout=6.4 retry=1, locking=no fileaccess=644, lang=ANSI casesensitive=no Y: \\freebsd\usr\home\daniel UID=-2, GID=-2 rsize=32768, wsize=32768 mount=soft, timeout=0.8 retry=1, locking=no fileaccess=644, lang=ANSI casesensitive=no OpenBSD $ cat /etc/exports /home/daniel -mapall=daniel -network=192.168.255.224 -mask=255.255.255.224 $ ls -l /home total 4 drwxr-xr-x 5 daniel daniel 512 Jul 14 09:54 daniel FreeBSD $ cat /etc/exports /usr/home/daniel -mapall=daniel -network=192.168.255.224 -mask=255.255.255.224 $ ls -l /usr/home total 2 drwxr-xr-x 2 daniel daniel 512 Jul 16 07:17 daniel |
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Re: Troubleshooting NFS/SFU
by Johan SANCHEZ
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On Mon, 16 Jul 2007 07:46:20 -0600
"Daniel Melameth" <daniel@...> wrote: > On 7/2/07, David Higgs <higgsd@...> wrote: > > I followed Microsoft's instructions for SFU and found that it worked > > quite well if all I cared about was read-only access. I didn't have > > any further success even after installing a bunch of SFU hotfixes > > (http://www.duh.org/interix/hotfixes.php). > > > > My troubleshooting seemed to indicate that the write requests were > > being denied somewhere inside the kernel, for reasons unknown. I > > didn't have the time or interest to pursue it any further, so I went > > back to samba and let the thread die. > Hi, I'm really interested in getting this working too, could you please send me offlist your sysctl -a output ? Thanks |
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Re: Troubleshooting NFS/SFU
by Daniel Melameth
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On a whim I decided to change the transport protocol that the Client
for NFS uses and my problem has gone away. By default "TCP+UDP" is used, but if I set this to just UDP or TCP (via nfsadmin client), and then restart the Client for NFS service, NFS largely works as expected--with UDP apparently providing a bit higher throughput over my WLAN. I haven't tried changing nfsd's flags on the server side instead, but this might work as well. Why "TCP+UDP" works for FreeBSD is unknown to me, but I'm content now. I guess it's one of those interoperability issues... On 7/16/07, Daniel Melameth <daniel@...> wrote: > On 7/2/07, David Higgs <higgsd@...> wrote: > > I followed Microsoft's instructions for SFU and found that it worked > > quite well if all I cared about was read-only access. I didn't have > > any further success even after installing a bunch of SFU hotfixes > > (http://www.duh.org/interix/hotfixes.php). > > > > My troubleshooting seemed to indicate that the write requests were > > being denied somewhere inside the kernel, for reasons unknown. I > > didn't have the time or interest to pursue it any further, so I went > > back to samba and let the thread die. > > I have the exact same issue hereFreeBSD works fine, OpenBSD fails. > I'm new to NFS, so I'm not too clear on the best way to troubleshoot > this further, but if there's someone here who is good with NFS and > cares to resolve the issue on OpenBSD, I'd be happy to work with them. > Details below: > > > Windows > > C:\Users\Daniel\Documents>mount > > Local Remote Properties > -- > Z: \\openbsd\home\daniel UID=-2, GID=-2 > rsize=32768, wsize=32768 > mount=soft, timeout=6.4 > retry=1, locking=no > fileaccess=644, lang=ANSI > casesensitive=no > Y: \\freebsd\usr\home\daniel UID=-2, GID=-2 > rsize=32768, wsize=32768 > mount=soft, timeout=0.8 > retry=1, locking=no > fileaccess=644, lang=ANSI > casesensitive=no > > > OpenBSD > > $ cat /etc/exports > /home/daniel -mapall=daniel -network=192.168.255.224 -mask=255.255.255.224 > > $ ls -l /home > total 4 > drwxr-xr-x 5 daniel daniel 512 Jul 14 09:54 daniel > > > FreeBSD > > $ cat /etc/exports > /usr/home/daniel -mapall=daniel -network=192.168.255.224 > > $ ls -l /usr/home > total 2 > drwxr-xr-x 2 daniel daniel 512 Jul 16 07:17 daniel |
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Re: Troubleshooting NFS/SFU
by wildken
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This here is pretty good at resolving troubles on SFU
SFU NFS
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