NAME

mountd − Services remote NFS compatible mount requests

SYNOPSIS

mountd [-d] [-i] [-n] [-s] [exportsfile]

FLAGS

-aVerifies the Internet addresses of hosts that make mount and unmount requests.  If a client’s address cannot be translated into a host name by the gethostbyaddr() function and then translated back into the same Internet address by the gethostbyname() function, the request is rejected. 

This option requires the BIND service for Internet address resolution.  It offers the highest level of security, especially when combined with the -i option. 

-dTurns on Internet address verification and domain checking.  If you are running the BIND service, mountd verifies that a host making a mount or unmount request is in the server’s domain. 

-nAllows non-root mount requests to be served.  This should only be specified if there are clients such as PC’s that require it.  ULTRIX BSD is allowed non-root mount requests by default.  Use the -n flag to allow non-root mount requests. 

-iVerifies the Internet address of hosts that make mount and unmount requests.  If a client’s address cannot be translated into a host name by the gethostbyaddr() function, the request is rejected.  If you are running the BIND service, the BIND server is used to translate the address.  If you are not, the /etc/hosts file is used. 

If the -i option is not used and a client’s address cannot be translated, the address is converted to a string of the form xx.xx.xx.xx.  This allows access to exported file systems that do not specify a list of allowed hostnames. 

The -i option is automatically enabled when either the -d or the -s option is specified. 

-sTurns on Internet address verification and subdomain checking.  If you are running the BIND service, mountd verifies that a host making a mount or unmount request is in the server’s domain or subdomain. 

DESCRIPTION

The mountd daemon is the server for NFS protocol mount requests from clients.  The mountd daemon responds to requests from remote computer systems to mount directories.  When getting the signal SIGHUP, mountd rereads the exports file. 

The optional exportsfile argument specifies an alternate location for the exports file.  /etc/exports is the default. 

Note, NFS Version 2 can export partitions that are greater than 2 gigabytes.  However, they appear as 2 gigabyte partitions when viewed from NFS clients. 

FILES

/usr/sbin/mountd
Specifies the command path

/etc/exports
Contains a list of directories that can be exported

/etc/mountdtab
Contains a table of local file systems mounted by remote NFS clients

/var/adm/syslog.dated/∗/daemon.log
Contains errors logged by the mountd daemon

RELATED INFORMATION

Commands: nfsstat(8), nfsd(8), portmap(8), showmount(8)

Files: exports(4), mountdtab(4)