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How to set up an FTP server on Ubuntu

Setting up a fully-functional and highly secure FTP server on Ubuntu is made very easy with a handful of key components and a couple minutes of your time. From anonymous FTP access, root directory restrictions, or even fully encrypted transfers using SSL, this tutorial provides all the basics you’ll need to quickly get your FTP server up and running.

Installing vsftpd

While there are a variety of FTP server tools available for Linux, one of the most popular and mature options is vsftpd.

Begin by SSHing into your server as root and use the apt-get command to install vsftpd:


The next step is to change any configuration settings for vsftpd. Open the /etc/vsftpd.conf file in your preferred text editor:

Edit the file so it resembles the following:

The critical settings seen above are outlined below:

  • listen=YES tells vsftpd to run as a standalone daemon (the simplest method for getting up and running). anonymous_enable=NO disallows anonymous FTP users, which is generally preferred for security reasons but can be enabled for testing purposes.
  • local_enable=YES allows any user account defined in the /etc/passwd file access to the FTP server and is generally how most FTP users will connect.
  • write_enable=YES is commented out by default, but removing the hash (#) allows files to be uploaded to the FTP server. chroot_local_user=YES restricts users to their home directory and is also commented out by default.

To begin your testing and make sure everything is working, start with the following settings for the above parameters:

Save the vsftpd.conf file then restart the vsftpd service for the changes to take effect:

Testing Your FTP Server

To quickly determine if your server was installed properly and is up and running, try to connect to the FTP server from your active shell, using the name anonymous and a blank password:

With both anonymous_enable and local_enable set to “YES” in the configuration, you should be able to successfully login to your local FTP server as seen above!

With that out of the way, simply enter quit at the ftp> prompt to cancel out:

With the test complete, you may wish to disable anonymous access once again by setting anonymous_enable=NO in the /etc/vsftpd.conf file and restarting the service:

Edit the file to resemble this:

Adding an FTP User

If this is a new server it may be advisable to add a specific user for FTP access. Doing so is a fairly simple process but begin by creating a new user:

With a new user added you can now connect to your server remotely with an FTP client such as FileZilla, but you will immediately run into an error:

The “500 OOPS” error vsftpd returns is a security measure designed to prevent writable root access for FTP users by default. To resolve this issue there are two main options available.

Allowing Writable User-root Access

The simplest method is to alter the /etc/vsftpd.conf file once again and enable one particular setting:

Edit the file so it resembles the following:

With allow_writeable_chroot enabled following a service vsftpd restart, you can now successfully FTP into your server remotely as your newly created user:

Using Writeable Subdirectories

The other option to maintain slightly stronger security is not to enable allow_writeable_chroot as outlined above, but instead to create a new subdirectory in the user’s root directory with write access:

Now when you connect remotely to your FTP server as the new user, that user will not have write access to the root directory, but will instead have full write access to upload files into the newly created uploads directory instead.

Securing Your FTP With SSL

While standard unencrypted FTP access as outlined so far is sufficient in many cases, when transferring sensitive information over FTP it is useful to utilize a more secure connection using SSL.

To begin you’ll likely need to generate a new SSL certificate with the following command, following the prompts as appropriate to complete the process:

Now you must ensure that vsftpd is aware of the SSL certificate. Open the /etc/vsftpd.conf file once again:

Look near the bottom of the file for two rsa_ settings like this, indicating the location of the SSL certificate that was just created:

If those lines don’t exist or match the appropriate path to the SSL certificate created, update them accordingly.

Additionally, there are a number of configuration settings to handle SSL connections, particularly forcing use of the TLS protocol which is ideal:

Some of the settings are self-explanatory, but the key components are the overall enabling of SSL, the restriction to use only TLS, and disallowing anonymous access.

With the settings added and the file saved, once again restart the vsftpd service:

Now your FTP server is ready to accept secure connections using “FTP over TLS” encryption. Using a client such as FileZilla, you will be presented with a certificate popup asking to verify the newly created SSL certification.

Upon accepting you will now be securely connected and transfers will be encrypted via SSL:


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