listening port failed on kali 2.0

Hi everyone,

i’m just trying to connect to myself for a test, but it doesn’t work.

my firewall :
```root@ERGY13-kali:~# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all – anywhere anywhere

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all – anywhere anywhere```

my listen “server” :
```root@ERGY13-kali:~# nc -l 1234

```

my connection command :
root@ERGY13-kali:~# nc 127.0.0.1 1234 (UNKNOWN) [127.0.0.1] 1234 (?) : Connection refused

thanks for your help