[CentOS] how to open a tcp port?

Eero Volotinen eero.volotinen at iki.fi
Wed Mar 3 11:42:59 UTC 2010


2010/3/3 hadi motamedi <motamedi24 at gmail.com>:
>
>
> On Wed, Mar 3, 2010 at 11:32 AM, Samuel Contesse
> <samuel.contesse at softcomponent.ch> wrote:
>>
>> Try /sbin/iptables –L
>>
>> On 03.03.10 12:26, "hadi motamedi" <motamedi24 at gmail.com> wrote:
>>
>>
>>
>> On Wed, Mar 3, 2010 at 11:14 AM, Samuel Contesse
>> <samuel.contesse at softcomponent.ch> wrote:
>>
>> Hi,
>>
>> Assumed that iptables has been disabled during installation,
>> /etc/sysconfig/iptables might not be present on your system. Can you print
>> iptables running configuration out by using:
>>
>> iptables –L
>>
>> Sam
>>
>>
>>
>> On 03.03.10 12:05, "hadi motamedi" <motamedi24 at gmail.com> wrote:
>>
>> Dear All
>> On my CentOS , I want to open tcp port 4965 but my server does not contain
>> /etc/sysconfig/iptables . Can you please let me know how to open this port ?
>> Thank you
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>>
>> I issued 'iptables -L' but it is returning just the followings :
>> 'Usage: /etc/rc.d/init.d/iptables
>> {start|stop|restart|condrestart|status|panic|save}'
>> Can you please let me know why?
>>
>>
>>
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>
> I tried for '/sbin/iptables -L' and please find its output at below :
> 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

All ports are open, but you really need some service to listen that port.

--
Eero


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