Ubuntu Linux
byTill Brehm <www.faqforge.com/author/till/>
If you run a firewall on your Linux server and want to use passive FTP
connections, you have to define the passive port range in pure-ftpd and
your firewall to ensure that the connections don’t get blocked. The
following example is for pure-ftpd on Debian or Ubuntu Linux and
ISPConfig 3.
Set Passive Port Range in PureFTPD
1) Configure pure-ftpd
echo “40110 40210” > /etc/pure-ftpd/conf/PassivePortRange
service pure-ftpd-mysql restart
2) Configure the firewall. If you use ISPConfig 3 on my server to
configure the bastille firewall, you can add the nescessera port range
in the ISPConfig firewall settings.
Change the list of Open TCP ports from:
20,21,22,25,53,80,110,143,443,3306,8080,10000
to:
20,21,22,25,53,80,110,143,443,3306,8080,10000,40110:40210
and then click on “Save”.