How to Open FTPS traffic to a Passive mode FTP Server behind the SonicWALL Date February 23, 2016 Author By kadmin Category Sonicwall Copied from this Dell article so I can find it again. PDF: How to Open FTPS traffic to a Passive mode FTP Server behind the SonicWALL Tags: ftps, passive mode, ports, sonicwall Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ