This will allow the configuration to work with the current user and any other user added later: We are also going to manually add some new values to the end of the file. Inside the file we will find the following entries and uncomment them:Ĭhroot_local_user will not be commented either, with this we guarantee that the connected user only accesses the files within the allowed directory: Since we want users to be able to upload files, we are going to edit vsftpd configuration file: sudo vim /etc/nf If you use a different firewall, check its documentation to open the ports. Run the following to do it: sudo ufw allow 20/tcp sudo ufw allow 21/tcp sudo ufw allow 990/tcp sudo ufw allow 40000:50000/tcp Ports 40000-50000 will be reserved for the range of passive ports that will eventually be set in the configuration file and port 990 will be used when TLS is enabled. In this step let's open ports 20 and 21 for FTP traffic. Sudo chown nombre-usuario:nombre-usuario /home/nombre-usuario/ftp/filesĪt this point, we will create a test file in the files folder:Įcho "vsftpd archivo de ejemplo" | sudo tee /home/nombre-usuario/ftp/files/ejemplo.txt Securing the FTP server Sudo mkdir /home/nombre-usuario/ftp/files We continue creating file container directory and we will assign the property: Now we remove the write permissions of this folder: sudo chmod a-w /home/nombre-usuario/ftp Sudo chown nobody:nogroup /home/nombre-usuario/ftp We will set the property of the folder with this other command: To begin with we create the FTP folder: sudo mkdir ftp For this example, we are going to create an ftp directory that will act as a chroot, along with a directory of modifiable files. With chroot enabled, a local user is restricted to their home directory ( default). Vsftpd uses chroot cages to achieve this. Ideally, FTP should be restricted to a specific directory for security reasons. Now we are going to set a password:Īfter we are going to move to the newly created user folder: cd /home/nombre-usuario Replaces' username'by your intended username. In the terminal (Ctrl + Alt + T) we will only have to use the command: With this We can use any FTP client to access the files hosted on the server through vsftpd. Sudo systemctl enable vsftpd FTP user account Now let's start service with the command: sudo systemctl start vsftpd If something goes wrong, the default settings can be restored. Once installed, we will start with make a copy of the original configuration file. If you don't have it installed on your computer, can be installed with the command (Ctrl + Alt + T): To apply the above settings just close your config file and type: sudo /etc/init.Install an FTP server in Ubuntu Install vsftpdįor this example, I am going to install an FPT server on my local network on Ubuntu 20.04. This will be it with the basic configuration part. # Uncomment it if you want/have to use port 990. # Port 990 is the default used for FTPS protocol. # in Servertype "FTPES - FTP over explicit TLS/SSL" # Filezilla uses port 21 if you don't set any port Just make sure to add these options to your config file, some of them are already available check those and then change the options. If you connect to your system remotely then you should go through these settings thoroughly, or else your passwords will be sent in plain text. Then create a file vsftpd.allowed_users and add all the usernames, one per line, that you want to allow. You can allow some particular list of users by adding the following to the code: userlist_deny=NO The above will help to deny some particular users from login. Then create a file nied_users and add denied users to it just by adding one user per line. To deny some particular users to login add these lines to the file: userlist_deny=YES Create a file /etc/vsftpd.chroot_list with a list of usernames that you want under chroot. You will have to create a file /etc/vsftpd.chroot_list with a list of usernames that you want to chroot.Īll the users will be free of chroot except some. This will allow you to chroot some particular users. Search “chroot_local_users” and select one of these as per your needs: chroot_local_user=YES Now there are multiple options available for chrooting users. The change above will allow local users to login and allow the users to write to the directory. Then just find the following lines and uncomment them: local_enable=YES This will prevent anonymous login from unidentified users. The very first change we will be making in the config file is: anonymous_enable=NO To begin with the configuration, open the nf file by typing: sudo nano /etc/nf Disable anonymous login and allow local users to write After the successful installation, we will move to the configuration part for some security issues and user management.
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