given for the dfs_login and dfs_logout commands can only be
performed if your NFS vendor provides these commands. If these
commands are not available, use the instructions for the dfsgw add and
dfsgw delete
commands, which work in a similar fashion. See your
NFS vendor documentation for the availability and use of the dfs_login
and dfs_logout commands.
The syntax of the dfs_login command follows:
dfs_login
[
-h
hostname
] [
-l
hh[:mm]
] [
dce_principal
] [
dce_password
]
where:
-h
hostname
Specifies the hostname of the Gateway Server machine. By default, the
command uses the hostname of the machine that exports /... to the
NFS client. Use this option to contact a different Gateway Server.
-l
hh[:mm]
Specifies the lifetime to assign to the service ticket obtained with the
command. Enter the lifetime as a number of hours and, optionally,
minutes. A value specified with this option is subject to the policies in
effect in the registry database of the DCE cell. By default, the ticket is
assigned the DCE cell’s default lifetime.
dce_principal
Specifies the DCE principal name of the user for whom to obtain a
ticket. By default, the command uses the name of the issuer of the
command.
dce_password
Provides the DCE password of the specified user. If you do not
specify a password, the command prompts for a password if one of
the following is true: You name a user other than yourself; you name
yourself and you do not already have a valid TGT; or you do not
name a user and you do not already have a valid TGT. The command
does not prompt for a password if you do not name a different user
and you already have a valid TGT.
For example, the user named ludwig issues the following dfs_login command
to authenticate to DCE from an NFS client:
$
dfs_login
Password for ludwig@abc.com:
password
where password is the DCE password of the user ludwig. In the example, the
user ludwig does not already have a valid TGT, so the command prompts for
the user’s password and obtains a TGT for the user. If the login succeeds, the
dfs_login
command returns no messages.
20
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