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NOTE: CentOS Enterprise Linux is built from the Red Hat Enterprise Linux source code. Other than logo and name changes CentOS Enterprise Linux is compatible with the equivalent Red Hat version. This document applies equally to both Red Hat and CentOS Enterprise Linux.

15.4. Starting and Stopping vsftpd

The vsftpd RPM installs the /etc/rc.d/init.d/vsftpd script, which can be accessed using the /sbin/service command.

To start the server, as root type:

/sbin/service vsftpd start

To stop the server, as root type:

/sbin/service vsftpd stop

The restart option is a shorthand way of stopping and then starting vsftpd. This is the most efficient way to make configuration changes take effect after editing the configuration file for vsftpd.

To restart the server, as root type:

/sbin/service vsftpd restart

The condrestart (conditional restart) option only starts vsftpd if it is currently running. This option is useful for scripts, because it does not start the daemon if it is not running.

To conditionally restart the server, as root type:

/sbin/service vsftpd condrestart

By default, the vsftpd service does not start automatically at boot time. To configure the vsftpd service to start at boot time, use an initscript utility, such as /sbin/chkconfig, /sbin/ntsysv, or the Services Configuration Tool program. Refer to the chapter titled Controlling Access to Services in Red Hat Enterprise Linux System Administration Guide for more information regarding these tools.

15.4.1. Starting Multiple Copies of vsftpd

Sometimes one computer is used to serve multiple FTP domains. This is a technique called multihoming. One way to multihome using vsftpd is by running multiple copies of the daemon, each with its own configuration file.

To do this, first assign all relevant IP addresses to network devices or alias network devices on the system. Refer to the chapter titled Network Configuration in Red Hat Enterprise Linux System Administration Guide for more information about configuring network devices and device aliases. Additional information can be found about network configuration scripts in Chapter 8 Network Interfaces.

Next, the DNS server for the FTP domains must be configured to reference the correct machine. If the DNS server is running on Red Hat Enterprise Linux, refer to the chapter titled BIND Configuration in Red Hat Enterprise Linux System Administration Guide for instructions about using the Domain Name Service Configuration Tool (system-config-bind). For information about BIND and its configuration files, refer to Chapter 12 Berkeley Internet Name Domain (BIND).

For vsftpd to answer requests on different IP addresses, multiple copies of the daemon must be running. The first copy must be run using the vsftpd initscripts, as outlined in Section 15.4 Starting and Stopping vsftpd. This copy uses the standard configuration file, /etc/vsftpd/vsftpd.conf.

Each additional FTP site must have a configuration file with a unique name in the /etc/vsftpd/ directory, such as /etc/vsftpd/vsftpd-site-2.conf. Each configuration file must be readable and writable only by root. Within each configuration file for each FTP server listening on an IPv4 network, the following directive must be unique:

listen_address=N.N.N.N

Replace N.N.N.N with the unique IP address for the FTP site being served. If the site is using IPv6, use the listen_address6 directive instead.

Once each additional server has a configuration file, the vsftpd daemon must be launched from a root shell prompt using the following command:

vsftpd /etc/vsftpd/<configuration-file> &

In the above command, replace <configuration-file> with the unique name for the server's configuration file, such as /etc/vsftpd/vsftpd-site-2.conf.

Other directives to consider altering on a per-server basis are:

  • anon_root

  • local_root

  • vsftpd_log_file

  • xferlog_file

For a detailed list of directives available within vsftpd's configuration file, refer to Section 15.5 vsftpd Configuration Options.

To configure any additional servers to start automatically at boot time, add the above command to the end of the /etc/rc.local file.

 
 
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