Connection refused - ftp server port 20, 21 closed

[dagring]

I have tried numerous things to get my ftp server working. I seems the port 20,21 is closed. My output of iptables -L shows:

$sudo iptables -L -n
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:21

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp spt:20

It seems right for me, but it isn't. Something is blocking the ports. Can anybody give me a hint?

Dag R

[Hugo_Serrano]

Hi!

Can you see those ports if you do:

netstat -tlpn

Cheers,
Hugo.

[dagring]

No I cannot see them. I see http port, ssh port etc, but not port 20,21

Dag R

[Hugo_Serrano]

My guess is that the service is not running.
Can you see it on process list?

ps -aux | grep -i ftp

[delanov]

My guess is that the service is not running.
Can you see it on process list?

ps -aux | grep -i ftp

I'm attempting to ftp to another computer within my home. From MINT 11 >> vsftpd will ftp to UBUNTU 14.04. However, UBUNTU 14.04 >> vsftp does not ftp to MINT 11.

I run the following four codes on UBUNTU. I need help deciphering the results, and would appreciate all input.


(1) root@ddval-p6653w:~# nmap -Pn 192.168.x.xxx

Starting Nmap 6.40 ( http://nmap.org ) at 2014-07-17 19:01 PDT
Nmap scan report for 192.168.x.xxx
Host is up (0.0035s latency).
Not shown: 999 filtered ports
PORT STATE SERVICE
22/tcp open ssh
Nmap done: 1 IP address (1 host up) scanned in 5.55 seconds

(2) ddval@ddval-p6653w:~$ sudo iptables -L -n
[sudo] password for ddval:
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination


(3) ddval@ddval-p6653w:~$ netstat -tlpn

root@ddval-p6653w:~# netstat -tlpn
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.1.1:53 0.0.0.0:* LISTEN 1125/dnsmasq
tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 876/vsftpd
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 873/sshd
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 1668/cupsd
tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN 574/smbd
tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN 574/smbd
tcp6 0 0 :::22 :::* LISTEN 873/sshd
tcp6 0 0 ::1:631 :::* LISTEN 1668/cupsd
tcp6 0 0 :::445 :::* LISTEN 574/smbd
tcp6 0 0 :::139 :::* LISTEN 574/smbd


(4) root@ddval-p6653w:~# ps -aux | grep -i ftp

root 876 0.0 0.0 4780 952 ? Ss 18:19 0:00 /usr/sbin/vsftpd
root 2687 0.0 0.0 4684 808 pts/0 R+ 18:45 0:00 grep --color=auto -i ftp