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Thread: problem with blueJ and firewall

  1. #1

    Default problem with blueJ and firewall

    when I update blueJ 3.0.5 to 3.0.7 the software give a error and sey:" often this is caused by overly restrictive firewall settings. please see BlueJ - Frequently Asked Questions
    how can I solve it OR I can downgrade to 3.0.5? how?

  2. #2
    Join Date
    Jul 2008
    Location
    Seattle, WA
    Posts
    17,037

    Default Re: problem with blueJ and firewall

    On Tue, 28 Feb 2012 18:46:03 +0000, amir7 wrote:

    > when I update blueJ 3.0.5 to 3.0.7 the software give a error and sey:"
    > often this is caused by overly restrictive firewall settings. please see
    > 'BlueJ - Frequently Asked Questions'
    > (http://www.bluej.org/help/faq.html#socket-exc)


    You could try dropping the firewall completely and see if it starts - if
    it does, run:

    lsof -i -P

    as root and see what port it's using. Then open that specific port in
    the firewall and re-enable the firewall.

    Jim



    --
    Jim Henderson
    openSUSE Forums Administrator
    Forum Use Terms & Conditions at http://tinyurl.com/openSUSE-T-C

  3. #3

    Default Re: problem with blueJ and firewall

    I dont understand.


    COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
    avahi-dae 836 avahi 11r IPv4 8341 0t0 UDP *:5353
    avahi-dae 836 avahi 12r IPv4 8342 0t0 UDP *:51226
    cupsd 947 root 7u IPv6 9261 0t0 TCP localhost:631 (LISTEN)
    cupsd 947 root 8u IPv4 9262 0t0 TCP localhost:631 (LISTEN)
    cupsd 947 root 10u IPv4 9265 0t0 UDP *:631
    sshd 1217 root 3u IPv4 10490 0t0 TCP *:22 (LISTEN)
    sshd 1217 root 4u IPv6 10492 0t0 TCP *:22 (LISTEN)
    dhclient 2067 root 6u IPv4 12896 0t0 UDP *:68
    dhclient 2067 root 20u IPv4 12873 0t0 UDP *:63661
    dhclient 2067 root 21u IPv6 12874 0t0 UDP *:26128

    which is about blueJ?
    I disable SElinux and stop firewall with Yast but don't solve my problem. blueJ opened but can't create an object.

  4. #4
    Join Date
    Jul 2008
    Location
    Seattle, WA
    Posts
    17,037

    Default Re: problem with blueJ and firewall

    On Wed, 29 Feb 2012 05:46:02 +0000, amir7 wrote:

    > which is about blueJ?


    BlueJ starts with Java, does it not? It would be with java as the
    executable, then.

    > I disable SElinux and stop firewall with Yast but don't solve my
    > problem. blueJ opened but can't create an object.


    If the firewall is disabled and it still doesn't work, then the firewall
    isn't your issue. You should ask the bluej folks what port they use and
    then determine if something else is using that port already. Only one
    application can use a port at a given time.

    Jim



    --
    Jim Henderson
    openSUSE Forums Administrator
    Forum Use Terms & Conditions at http://tinyurl.com/openSUSE-T-C

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