ftp server port blocked

[keak]

Hi there,

I am trying to set up a ftp server. I've installed vsftpd, and started the service. When I do a quick scan for ports, it does look like the port is opened:

PORT STATE SERVICE
21/tcp open ftp
22/tcp open ssh
25/tcp open smtp

However, when I try to ping port 21 or 22 from an external host, I am getting timeouts (same goes for ftp client program/IE). The ftp works fine for local machines, so I am pretty sure its blocking the ports somewhere .....


My question is, does anyone know where firewall settings are usually configured on a linux system? and how I can see which ports are blocked by this ....

Thanks

 

[pansophic]

How are you "pinging" a port?

Is your network private, or public addressed? If it is privately addressed, do you have a port forwarding rule defined that will allow you to connect to you Linux box?

Firewall configuration depends on your Linux distro. What distro are you running?


pansophic

 

[QatQat]

execute
iptables -L
iptables -t nat -L

and post the result.


Cheers

QatQat

Life is what happens when you are making other plans.

 

[thedaver]

Typically IPTAbles firewalls need the

ip_conntrack_ftp

for use with NAT and PASV connections.

You may want to "insmod ip_conntrack_ftp" and see if that helps.

D.E.R. Management - IT Project Management Consulting

http://www.dermanagement.com/