For those of you who don't have a control panel (only LAMP), there is no need to worry or be confused about how to upload your website files to the server. Here are the tips.
Download FileZilla first to make it easier.
https://filezilla-project.org/download.php?show_all=1
Then select FileZilla_3.60.2_win64.zip
After the download is complete, extract the zip file, and open the FileZilla application which says filezilla.exe.
Then an application will appear. Now, fill in Host with your sftp://ip-address, Username fill in as root, and Password is the password of your own root. While in the Port selection then use 8288 because it is the default port.
Jika sudah masuk, maka pada bagian Remote Site ubah ke /var/www/html lalu Enter. Kemudian pada layar kiri adalah sub folder dan direktori pada komputer / laptop anda, sedangkan sebelah kanan adalah list dari dalam server anda. Anda bisa gunakan drag and drop untuk mengupload file anda ke server.