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| 32 | .\" @(#)mountd.8 8.4 (Berkeley) 4/28/95 |
| 33 | .\" $FreeBSD: src/sbin/mountd/mountd.8,v 1.16.2.2 2000/12/08 14:04:02 ru Exp $ |
| 34 | .\" $DragonFly: src/sbin/mountd/mountd.8,v 1.5 2008/05/09 20:31:04 swildner Exp $ |
| 35 | .\" |
| 36 | .Dd April 28, 1995 |
| 37 | .Dt MOUNTD 8 |
| 38 | .Os |
| 39 | .Sh NAME |
| 40 | .Nm mountd |
| 41 | .Nd service remote |
| 42 | .Tn NFS |
| 43 | mount requests |
| 44 | .Sh SYNOPSIS |
| 45 | .Nm |
| 46 | .Op Fl 2dlnr |
| 47 | .Op Ar exportsfile |
| 48 | .Sh DESCRIPTION |
| 49 | .Nm Mountd |
| 50 | is the server for |
| 51 | .Tn NFS |
| 52 | mount requests from other client machines. |
| 53 | It listens for service requests at the port indicated in the |
| 54 | .Tn NFS |
| 55 | server specification; see |
| 56 | .%T "Network File System Protocol Specification" , |
| 57 | RFC 1094, Appendix A and |
| 58 | .%T "NFS: Network File System Version 3 Protocol Specification" , |
| 59 | Appendix I. |
| 60 | .Pp |
| 61 | The following options are available: |
| 62 | .Bl -tag -width indent |
| 63 | .It Fl 2 |
| 64 | Allow the administrator to force clients to use only the |
| 65 | version 2 |
| 66 | .Tn NFS |
| 67 | protocol to mount filesystems from this server. |
| 68 | .It Fl d |
| 69 | Output debugging information. |
| 70 | .It Fl l |
| 71 | Cause all succeeded |
| 72 | .Nm |
| 73 | requests to be logged. |
| 74 | .It Fl n |
| 75 | Allow non-root mount requests to be served. |
| 76 | This should only be specified if there are clients such as PC's, |
| 77 | that require it. |
| 78 | It will automatically clear the |
| 79 | .Va vfs.nfs.nfs_privport |
| 80 | sysctl flag, which |
| 81 | controls if the kernel will accept NFS requests from reserved ports only. |
| 82 | .It Fl r |
| 83 | Allow mount RPCs requests for regular files to be served. |
| 84 | Although this seems to violate the mount protocol specification, |
| 85 | some diskless workstations do mount requests for |
| 86 | their swapfiles and expect them to be regular files. |
| 87 | Since a regular file cannot be specified in |
| 88 | .Pa /etc/exports , |
| 89 | the entire file system in which the swapfiles resides |
| 90 | will have to be exported with the |
| 91 | .Fl alldirs |
| 92 | flag. |
| 93 | .It Ar exportsfile |
| 94 | Specify an alternate location |
| 95 | for the exports file. |
| 96 | .El |
| 97 | .Pp |
| 98 | When |
| 99 | .Nm |
| 100 | is started, |
| 101 | it loads the export host addresses and options into the kernel |
| 102 | using the |
| 103 | .Xr mount 2 |
| 104 | system call. |
| 105 | After changing the exports file, |
| 106 | a hangup signal should be sent to the |
| 107 | .Nm |
| 108 | daemon |
| 109 | to get it to reload the export information. |
| 110 | After sending the |
| 111 | .Dv SIGHUP |
| 112 | (kill \-s HUP `cat /var/run/mountd.pid`), |
| 113 | check the syslog output to see if |
| 114 | .Nm |
| 115 | logged any parsing |
| 116 | errors in the exports file. |
| 117 | .Pp |
| 118 | If |
| 119 | .Nm |
| 120 | detects that the running kernel does not include |
| 121 | .Tn NFS |
| 122 | support, it will attempt to load a loadable kernel module containing |
| 123 | .Tn NFS |
| 124 | code, using |
| 125 | .Xr kldload 8 |
| 126 | by way of |
| 127 | .Xr vfsload 3 . |
| 128 | If this fails, or no |
| 129 | .Tn NFS |
| 130 | KLD was available, |
| 131 | .Nm |
| 132 | exits with an error. |
| 133 | .Sh FILES |
| 134 | .Bl -tag -width /var/run/mountd.pid -compact |
| 135 | .It Pa /etc/exports |
| 136 | the list of exported filesystems |
| 137 | .It Pa /var/run/mountd.pid |
| 138 | the pid of the currently running mountd |
| 139 | .It Pa /var/db/mountdtab |
| 140 | the current list of remote mounted filesystems |
| 141 | .El |
| 142 | .Sh SEE ALSO |
| 143 | .Xr nfsstat 1 , |
| 144 | .Xr exports 5 , |
| 145 | .Xr kldload 8 , |
| 146 | .Xr nfsd 8 , |
| 147 | .Xr rpcbind 8 , |
| 148 | .Xr showmount 8 |
| 149 | .Sh HISTORY |
| 150 | The |
| 151 | .Nm |
| 152 | utility first appeared in |
| 153 | .Bx 4.4 . |