Which port is open for connection ?

how could I know which port is open for connection ?
In the java, I use JDBC to connect to Oracle,
connection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:sid", "scott","tiger");Do we have a command to show open port ?
Thanks.

What is your Oracle version, and do you use dedicated connections or "shared servers"? From your port number invoked (1521), I'll guess you use dedicated connections. In that case, the listener (located at 1521) will "spawn" a dedicated process for your session, and tell this process to start on another port (usually falling on a certain range, depending on your OS). An easy way to see this would probably to turn listener tracing on. Here's what I found in the log file after I started a new (dedicated) session on my 10.2 DB:
"22-OCT-2006 21:31:16 * (CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=ora102)(CLIENT_REGISTRATION=ora102)(CID=(PROGRAM=C:\oracle92\bin\sqlplusw.exe)(HOST=DANIELROYLAPTOP)(USER=Daniel))(CLIENT_REGISTRATION=ora102)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.100)(PORT=3198)) * establish * ora102 * 0"
HTH
Daniel

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Which port need open for Imoprt WS in to the TREE ??

ZfD6.5SP2.
WS----firewall-------NW_SERVER
Which ports ned open on the firewall for import Ws in to the TREE ??
Serg

Serg,
>Which ports ned open on the firewall for import Ws in to the TREE ??
8039
Jared Jennings
Data Technique, Inc.
Novell Support Forums Sysop
http://wiki.novell.com

Which ports need open for:...

Ws(xp_prof)+BM39VPNclient-----NAT1---INTERNET---NAT2----BM39---PRIVETLAN
USer work with Ws - Xp_prof_SP2. On this Xp installe BM39 VPN Client.
Between WS and INETRNET - NAT1 (iptables).
On the other side:
INTERNET--->NAT2---->BM39SERVER---->PRIVETLAN
I ask:
Whic ports and protocols (and in whic directions) need open in the NAT1
for Allow VPN connection between WS and BM39 in this configuration.
Serg

On Sat, 09 Feb 2008 12:55:40 +0000, mysterious wrote:
> serg wrote:
>> Ws(xp_prof)+BM39VPNclient-----NAT1---INTERNET---NAT2----BM39---PRIVETLAN
>>
>> USer work with Ws - Xp_prof_SP2. On this Xp installe BM39 VPN Client.
>>
>> Between WS and INETRNET - NAT1 (iptables).
>>
>> On the other side:
>> INTERNET--->NAT2---->BM39SERVER---->PRIVETLAN
>>
>> I ask:
>> Whic ports and protocols (and in whic directions) need open in the NAT1
>> for Allow VPN connection between WS and BM39 in this configuration.
>>
>> Serg
>>
>>
> tid10088980
Thank you.
Serg

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Try here:
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http://support.apple.com/kb/TS3125

Which ports oracle use for replication..

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I want to know which ports orcale use for replication.plz reply me quickly.
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Kurt,
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Need step by step to get port 48705 open for Panasonic Bluray

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Tesserax
Re: how can you perform a Port Forwarding Procedure on Ports 48705, 443 and 80 so my Blu Ray player will be able get and IP address and connected to your gateway.
Oct 1, 2011 11:22 PM (in response to doc9850)
Again, you would only need to configure for port mapping if you intend on accessing the Blu-ray player from a remote location.
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Either assign a static Private IP address or use the AirPort's ability to allow DHCP to assign a reserved IP address to the Blu-Ray player, and
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Click Done.
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My problem seems to be that my AirPort Utility does not have Port Mapping under the Advanced Tab.
This tells us that you have another router "upstream" on your network, which you may call your modem, but it is in fact a modem/router or gateway type of device.
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0.0.0.0:* 2078/systemd-networ
0.0.0.0:* 2078/systemd-networ
0.0.0.0:* 2078/systemd-networ
0.0.0.0:* 2078/systemd-networ
0.0.0.0:* 2078/systemd-networ
0.0.0.0:* 2078/systemd-networ
0.0.0.0:* 2078/systemd-networ
0.0.0.0:* 2078/systemd-networ
0.0.0.0:* 2078/systemd-networ
0.0.0.0:* 2078/systemd-networ
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58, and 68 being listened to/open ?
if any additional information is needed, it is the latest version or arch linux and fully updated as of this post.

68 is for BOOTP/DHCP. Why it needs so many open is beyond me - dhcpcd just has the one global 68 open for any amount of interfaces.
The other two ports don't look like anything network setup related should have open.
I would file a ticket with systemd upstream.

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Which port is open for connection ?

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