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Synopsis | |
cifslogin <servername> [<username>] [<options>] Description | |
The cifslogin command
is used to authenticate additional users at a server. Only authenticated
users may access mounted files. Each user accesses the file at the
server with his or her privilege status at that server. Because
there must be a one-to-one (many=to-one) mapping from local users
to remote user names, every user can log in only once at a given
server. By default, cifslogin sends
the user's login name to the server. If this is not desired, the
username can be given in the commandline. Options | |
- -c <clientname>
Sets the Netbios name of the client. HP CIFS is
based on Netbios. Netbios requires that valid Netbios computer names
are supplied during the connection establishment for the client
and the server. The client name is usually taken from the hostname
of your computer. If this does not work or if your computer's Netbios
name is different, you may supply the value to be used with this
parameter. This parameter is ignored if the server is already connected. - -I <IP number>
IP address of server. By default, the hostname of
the server is taken from the server specification of the share.
This must also be the Netbios host name of the server, if the server
enforces correct Netbios names. The HP CIFS Client uses DNS instead
of Netbios to resolve server names to IP addresses. If the DNS name of
the server is different from the Netbios name, you may supply the
DNS name or the server's IP address with this parameter. It is ignored
if the server is already connected. - -p <portnumber>
Sets the connection port. Netbios connections are usually
made on port 139. If you want to connect on a different port, you
can supply a decimal port number with this parameter. This parameter
is ignored if the server is already connected. - -P <password>
Password given in commandline. Use this option only
if you really have to, because all commandline parameters may show
up in the output of the ps command. It gives
you the possibility to pass a dynamically generated password to
the server. The password is ignored if the user is already logged
in at the server. - -S
Reads the password from stdin. This option may be useful
if you want to use cifslogin from
a shell script or another program. The -P option
is insecure for this purpose because the Unix command ps can show the commandline parameters
of running processes. - -N
Do not prompt for a password. This option may be
used to avoid prompting for a password if you are already logged
in at the server or if the user does not have a password. - -u
Enables plain text passwords. The HP CIFS Client refuses
to send passwords in plain text to the server by default because
this is a security risk. There are tools available that sniff the
network for plain text passwords. If you really must send the password
in plain text (e.g., because your server does not allow password
encryption), you can enable it with this option. It is ignored if
you are already logged in at the server. - -f
Forces login. When this option is used, the login
is done even when the server is not responding. No requests are
sent to the server. Consequently, none of the parameters can be
checked for validity. - -s
Saves password in database. Do not use unless you understand
the security implications. This option can maintain a database of
mounts, username, and passwords. This database is used at startup
to re-establish stored mounts and to log in users on demand, even
if you are not logged in at the client. This option may be useful for automounting and to run programs
by cron that have no possibility to ask the user for a password.
Passwords are stored in the HP CIFS Client's user database file.
It is possible to get the CIFS hash values of the passwords (which
is functionally equivalent to the passwords themselves) out of this
file, although the file itself is not sufficient. You can use this option safely only if you are the only one
who has physical or root access to your machine or if you trust
everyone who has this access. The HP CIFS Client does not store
unencrypted passwords in the user database. If your server does
not support encrypted passwords, you cannot use this option.
Examples | |
If local user steve has mounted a share from server bigserver,
local user bill has no access to the mounted files because he is
not logged in at the server. Bill, who has an account on bigserver under
his real name miller, can do the following to gain access: cifslogin bigserver miller Bill will be prompted for a password and if it is correct,
he will be given access to the share with the same privileges that
user miller has on bigserver. Files | |
Usernames and passwords are stored encrypted in the HP CIFS
Client's user database file. The path to the user database file
can be configured in HP CIFS Client's configuration file. The default
path is /var/opt/cifsclient/cifsclient.udb See
Also | |
cifsmount, cifsumount, cifslogout, cifslist |
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