Which program is listening on which port

[StoneBeat]

Tcp --> netstat -tanp

UDP --> netstat -uanp 


El Miércoles 23 Junio 2004 17:48, Andreas Röxeisen escribió:
> Hi all,
>
> can anyone tell me how I can find out which program is listening on
> which port or using which port.
>
> This because I've a problem with 'Azureus 2.1.0.2' my Bittorrent-Client
> (running on FC2) who tells me on startup: "Failed to establish listen on
> port 6969. Check that other applications aren't already using this
> port."
>
> Here my iptables I'm using
>
> [START-iptables]
> # Firewall configuration written by system-config-securitylevel
> # Manual customization of this file is not recommended.
> *filter
>
> :INPUT ACCEPT [0:0]
> :FORWARD ACCEPT [0:0]
> :OUTPUT ACCEPT [0:0]
> :RH-Firewall-1-INPUT - [0:0]
>
> -A INPUT -j RH-Firewall-1-INPUT
> -A FORWARD -j RH-Firewall-1-INPUT
> -A RH-Firewall-1-INPUT -i lo -j ACCEPT
> -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
> -A RH-Firewall-1-INPUT -p 50 -j ACCEPT
> -A RH-Firewall-1-INPUT -p 51 -j ACCEPT
> -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
> -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 25 -j
> ACCEPT
> -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j
> ACCEPT
> -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j
> ACCEPT
> -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 21 -j
> ACCEPT
> -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j
> ACCEPT
> -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 23 -j
> ACCEPT
> -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport
> 6881:6889 -j ACCEPT
> -A RH-Firewall-1-INPUT -m state --state NEW -m udp -p udp --dport
> 6881:6889 -j ACCEPT
> -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
> COMMIT
>
> [END-iptables]
>
> Any Idea?
>
> TIA, Andreas