How to get active network interface name?

Hi All,
Can any one tell me how to get the currently active network interface name (Local Area Connection/ Wireless Network Connection/ other) either by using java SDK or win32 API.
Is there any function to get the active network interface name in java/win32?
Is there any procedure for it to get from observing registry keys.
I found NetworkInterface class in java but not yet succesful in getting the display name of active network interface.
Can anyone help me with partial code?
Please help me.

Use getLocalHost() then retreive the list of NetworkInterfaces and cycle through them until you find the one that has that address.

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[SOLVED] Network interface name keeps changing

My network interface name keeps changing between wlp2s0 and wlan0. This is a real pain, since I never know what name will be generated at boot. Most of the time it's called wlp2s0, so this is what netctl is set up to handle by itself. At boots were wlan0 is generated I have to connect manually.
I've tried making the name static by adding a rule to the /etc/udev/rules.d/10-network.rules. The rule i added was:
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Last edited by madr (2013-05-18 20:09:34)

I've now been able to replicate the issue, and run the command:
journalctl -b
I did find the output:
mai 18 02:30:02 <hostname> systemd-udevd[126]: error changing net interface name wlan0 to wlp2s0: Device or resource busy
I haven't been able to process the whole output yet (I'll continue tomorrow if necessary), but I've found some things that I hope will clearify things. I get similar outputs to the following a lot throughout:
mai 18 02:30:03 <hostname> dhcpcd[237]: wlan0: carrier lost
mai 18 02:30:03 <hostname> dhcpcd[237]: wlan0: waiting for carrier
mai 18 02:30:04 <hostname> systemd[1]: [email protected]: control process exited, code=exited status=1
mai 18 02:30:04 <hostname> systemd[1]: Failed to start Automatic wireless network connection using netctl profiles.
mai 18 02:30:04 <hostname> systemd[1]: Unit [email protected] entered failed state.
mai 18 02:30:04 <hostname> systemd[1]: Starting Network.
mai 18 02:30:04 <hostname> systemd[1]: Reached target Network.
EDIT:
I see now that this is later in time, so that's not so strange after all. I'll look some more.
EDIT2:
The error code that a name change i impossible is the first time the term 'wlan0' occurs in the log. However there's a line much earlier that talks about wlp2s0:
mai 18 02:29:59 <hostname> systemd[1]: Expecting device sys-subsystem-net-devices-wlp2s0.device...
But as I said, if this information doesn't help, I'll have a closer look at the output tomorrow. Getting late here in Norway now.
Last edited by madr (2013-05-18 01:20:50)

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) RETURN VARCHAR2
AS
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   int_n       PLS_INTEGER;
   str_line    VARCHAR2(255);
   found_stack BOOLEAN DEFAULT FALSE;
   int_cnt     PLS_INTEGER := 0;
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   str_owner   VARCHAR2(30);
   str_type    VARCHAR2(30);
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How to get the current function name in java.
In c it is done as
printf("%s",__func__);
Thanx in advance.

j0o wrote:
System.out.println("Class Name: " + new Exception().getStackTrace()[0].getClassName() +
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Restore
Note: Because Restore erases all of the songs and files on iPod, make sure toback up any files you've saved on the iPod disk. All of your songs, videos, podcasts, audiobooks, and games can be loaded back to your iPod provided that you have them stored in your iTunes Library.
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1. Make sure you've reinstalled the latest version of iTunes.
2. Open iTunes, and then connect your iPod to your computer.
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5. Click the Restore button. You will be prompted with one or more restore options that may prompt iTunes to automatically download of the latest iPod Software. The 4 possible restore options are:
Restore Option 1: Restore - Restores with same iPod Software version already on iPod.
Restore Option 2: Use Same Version - Restores with same iPod Software version already on iPod even though a newer version is available.
Restore Option 3: Use Newest Version - Restores with the latest iPod Software on your computer.
Restore Option 4: Restore and Update - Restores with the latest iPod Software on your computer.
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7. During the stage 2 of the restore process, the iPod will show an Apple logo as well as a progress bar at the bottom of the display. It is critical that the iPod remains connected to the computer or iPod Power adapter during this stage. Note: The progress bar may be difficult to see since the backlight on the iPod display may be off.
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For Mac:
1. Make sure you've reinstalled the latest version of iTunes.
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3. After a few moments, it will appear in the source list in iTunes. If the iPod's display doesn't show "Connected" or "Do not disconnect" you may need to put the iPod into disk mode to proceed.
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Restore Option 1: Restore - Restores with same iPod Software version already on iPod.
Restore Option 2: Use Same Version - Restores with same iPod Software version already on iPod, even though a newer version is available.
Restore Option 3: Use Newest Version - Restores with latest iPod Software version on your computer.
Restore Option 4: Restore and Update - Restores with latest iPod Software version on your computer.
6. A message will appear prompting you to enter an administrator's name and password.
7. A progress bar will appear on the computer screen indicating that the first stage of the restore process has started. When this stage is completed, iTunes will instruct you to leave iPod connected to your computer to complete restore.
8. During the stage 2 of the restore process, the iPod will show an Apple logo as well as a progress bar at the bottom of the display. It is critical that the iPod remains connected to the computer or iPod Power adapter during this stage. Note: The progress bar may be difficult to see since the backlight on the iPod display may be off.
9. After stage 2 of the restore process is complete and the iPod is connected to the computer, the iTunes Setup Assistant window will appear asking you to name your iPod and choose your syncing preferences similar to when you connected your iPod for the first time.
Source:
iPod nano (3rd generation) Troubleshooting Assistant
Message was edited by: michael08081

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