On 09/07/2013 05:16 AM, Rick Stevens wrote:
On 09/06/2013 03:43 PM, Patrick Dupre issued this missive:
Hello,
I installed pure-ftpd on my machine to use the TLS protocle. I followed the instructions given in: http://www.howtoforge.com/how-to-configure-pureftpd-to-accept-tls-sessions-o...
TLS Â Â Â Â Â Â Â Â 2
but I still cannot ftp by using ftps (filezilla).
Do I need to configure the firewall to open the port? in firewall-config, I do not see any tls service. However, in system-config-service, I do see 2 service pure-ftpd one saying that it is running and one not running (The pure-ftpd service will be started on demand by the xinetd service and ends when it has nothing more to do.) Is it normal?
Yes, you have to modify your firewall configuration. For FTPS, you must allow incoming connections to port TCP port 990. To permit passive FTPS data, then you must also allow incoming TCP connections for a range of ports that the server will use for passive data connections. You must also tell your FTP daemon which ports those are.
If you are using iptables for firewall, you could use the 'ip_nat_ftp' and 'ip_conntrack_ftp' module if you are behind nat, or 'ip_conntrack_ftp' module alone otherwise, for having the firewall ports dynamically opened on demand. You specify the module to be loaded in '/etc/sysconfig/iptables-config'.
How do you do this with the new 'firewalld' beast ? Learning about that beast is still on my 'To Do' list. :-)
- rejy (rmc)
I'm not sure how you tell pure-ftpd which ports it can use for passive connections, but in vsftpd they're specified by the "pasv_min_port" and "passv_max_port" variables in the vsftpd.conf file.
My server allow passive FTP/FTPS data over ports 20,000-20,100, so my firewall allows incoming connections for TCP ports 21, 990 and 20000 through 20100. My vsftpd.conf file contains:
passv_min_port=20000 passv_max_port=20100
And away we go.
- Rick Stevens, Systems Engineer, AllDigital ricks@alldigital.com -
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