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install/debian/8/vsftpd/vsftpd.conf

@@ -12,6 +12,7 @@ dual_log_enable=YES
 chroot_local_user=YES
 listen=YES
 pam_service_name=vsftpd
+ftpd_banner=Welcome! Please note that all activity is logged.
 userlist_enable=NO
 tcp_wrappers=YES
 force_dot_files=YES

install/debian/9/vsftpd/vsftpd.conf

@@ -12,6 +12,7 @@ dual_log_enable=YES
 chroot_local_user=YES
 listen=YES
 pam_service_name=vsftpd
+ftpd_banner=Welcome! Please note that all activity is logged.
 userlist_enable=NO
 tcp_wrappers=YES
 force_dot_files=YES

install/ubuntu/14.04/vsftpd/vsftpd.conf

@@ -12,6 +12,7 @@ dual_log_enable=YES
 chroot_local_user=YES
 listen=YES
 pam_service_name=vsftpd
+ftpd_banner=Welcome! Please note that all activity is logged.
 userlist_enable=NO
 tcp_wrappers=YES
 force_dot_files=YES

install/ubuntu/16.04/vsftpd/vsftpd.conf

@@ -12,6 +12,7 @@ dual_log_enable=YES
 chroot_local_user=YES
 listen=YES
 pam_service_name=vsftpd
+ftpd_banner=Welcome! Please note that all activity is logged.
 userlist_enable=NO
 tcp_wrappers=YES
 force_dot_files=YES

install/ubuntu/18.04/vsftpd/vsftpd.conf

@@ -12,6 +12,7 @@ dual_log_enable=YES
 chroot_local_user=YES
 listen=YES
 pam_service_name=vsftpd
+ftpd_banner=Welcome! Please note that all activity is logged.
 userlist_enable=NO
 tcp_wrappers=YES
 force_dot_files=YES