Active and Passive FTP Simplified - Understanding FTP Ports If a client encounters problems when connecting to your FTP server , one of the first things you might want to check is your FTP data transfer mode . Depending on certain network configurations, this mode should be set to either active or passive. In this post, you’ll understand the salient points of active and passive FTP and learn how to avoid connectivity issues associated with them.
Introdution What is the difference between FTP , FTPS and SFTP we learned in the last article Understanding Key Differences Between FTP, FTPS and SFTP We also need to recognize the difference between active and passive ftp connections Configure VSFTPd server Install vsftpd server and pam service First you need vsftp and PAM with htpasswd utility support installed ~] apt-get install vsftpd libpam-pwdfile apache2-utils Configure pam for vsftpd Linux Pluggable Authentication Modules (PAM) provide dynamic authentication support for applications and services in a Linux or GNU/kFreeBSD system.
Understanding Key Differences Between FTP, FTPS and SFTP Perhaps the most common protocols used in file transfer today are FTP, FTPS and SFTP. While the acronyms for these protocols are similar, there are some key differences among them, in particular how data are exchanged, the level of security provided and firewall considerations. Learning these key differences can help you when choosing a file transfer protocol or troubleshooting common connection issues.