System Administration Guide: Network Services

ProcedureHow to Enable Limited Virtual Hosting

Limited virtual hosting provides partial support for virtual FTP servers. You can enable support for limited virtual hosting by specifying the virtual root directory. If required, you can also set the following parameters for the virtual host in the ftpaccess file:

All directives in the ftpaccess file are shared globally across all virtual servers.

  1. Become superuser or assume an equivalent role.

    Roles contain authorizations and privileged commands. For more information about roles, see Configuring RBAC (Task Map) in System Administration Guide: Security Services.

  2. Add the following entries to the ftpaccess file.

    virtual address root|banner|logfile path
    virtual address hostname|email string

    Keyword that is used to enable virtual server capabilities


    IP address of the virtual server


    The root directory of the virtual server


    Banner file that is displayed when a connection is made to the virtual server


    Record of file transfers that are made to and from the virtual server


    Variable that is used to specify the location of directories and files on the virtual server


    Email address that is used in message files and in the HELP command


    Name of the host that is shown in the greeting message or status command


    Variable that is used to specify email or hostname parameters

    Note –

    While it is possible to use hostname as the address of the virtual server, you are strongly encouraged to use the IPv4 address instead. DNS must be available when the FTP connection is received in order for hostname to be matched. For an IPv6 host, use the host name rather than the IPv6 address.

Example 28–15 Enabling Limited Virtual Hosting in the ftpaccess File

virtual root    /var/ftp/virtual/ftp-serv
virtual banner  /var/ftp/virtual/ftp-serv/banner.msg
virtual logfile /var/log/ftp/virtual/ftp-serv/xferlog

The preceding example sets the location of the root directory, banner, and logfile on a virtual FTP server.

Example 28–16 Enabling Limited Virtual Hosting on the Command Line

The ftpaddhost(1M) script with the -l option is provided to configure limited virtual hosts.

In the following example, ftpaddhost is run with -l -b -x options to configure limited virtual hosting with a test banner and the logfile /var/ftp/virtual/ under a virtual root /var/ftp/virtual/

# ftpaddhost -l -b -x /var/ftp/virtual/ \