Firewalls typically snoop FTP control connection commands so that they can "open" ports for PASV. TLS complicates this since the data is encrypted.
Google "ftp fls firewall" for more information on the challenges. Kirk Wolf Dovetailed Technologies On Wed, Jun 18, 2008 at 12:54 PM, Rugen, Len <[EMAIL PROTECTED]> wrote: > Doesn't PASV get around the firewall issues? It seems to be the default > most places now. > > > Len Rugen > > "In theory, there is no difference between theory and practice. But in > practice, there is." > - Yogi Berra > > > FTP with TLS has its own set of problems - mostly related to headaches > for > firewalls and NAT routers, since FTP uses multiple socket connections. > SSH > is much cleaner in this respect, which is one reason why it is so > popular. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html > > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
