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Matei Cezar

I'am a computer addicted guy, a fan of open source and linux based system software, have about 4 years experience with Linux distributions desktop, servers and bash scripting.

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8 Responses

  1. James Otto says:

    I am running centos7 and there is not a /etc/sysconfig/iptables to edit.

    Therefore, I can not “service iptables restart”

    Any ideas?

    • Matei Cezar says:

      CentOS 7 ships with firewalld. Open the port from firewalld command line:
      firewall-cmd –zone=public –add-port=8080/tcp –permanent
      firewall-cmd –reload

  2. vivek says:

    I am getting following error on downloading websocketd

    wget https://github.com/joewalnes/websocketd/releases/download/v0.2.11/websocketd-0.2.11-linux_amd64.zip
    –2015-12-23 20:50:31– https://github.com/joewalnes/websocketd/releases/download/v0.2.11/websocketd-0.2.11-linux_amd64.zip
    Resolving github.com…
    Connecting to github.com||:443… connected.
    HTTP request sent, awaiting response… 302 Found
    Location: https://github-cloud.s3.amazonaws.com/releases/8201256/63875c5e-1f40-11e5-99a8-0b1fe18398f0.zip?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAISTNZFOVBIJMK3TQ%2F20151223%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20151223T152032Z&X-Amz-Expires=300&X-Amz-Signature=1179f41ae8c1314930cb3d65c4af61428363f89dbf7808ca0bcd75086a3d6b9b&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment%3B%20filename%3Dwebsocketd-0.2.11-linux_amd64.zip&response-content-type=application%2Foctet-stream [following]
    –2015-12-23 20:50:32– https://github-cloud.s3.amazonaws.com/releases/8201256/63875c5e-1f40-11e5-99a8-0b1fe18398f0.zip?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAISTNZFOVBIJMK3TQ%2F20151223%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20151223T152032Z&X-Amz-Expires=300&X-Amz-Signature=1179f41ae8c1314930cb3d65c4af61428363f89dbf7808ca0bcd75086a3d6b9b&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment%3B%20filename%3Dwebsocketd-0.2.11-linux_amd64.zip&response-content-type=application%2Foctet-stream
    Resolving github-cloud.s3.amazonaws.com…
    Connecting to github-cloud.s3.amazonaws.com||:443… connected.
    HTTP request sent, awaiting response… 200 OK
    Length: 2103270 (2.0M) [application/octet-stream]
    63875c5e-1f40-11e5-99a8-0b1fe18398f0.zip?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAISTNZFOVBIJMK3TQ%2F20151223%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20151223T152032Z&X-Amz-Expires=300&X-Amz-Signature=1179f41ae8c1314930cb3d65c4af61428363f89dbf7808ca0bcd75086a3d6b9b&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment; filename=websocketd-0.2.11-linux_amd64.zip&response-content-type=application%2Foctet-stream: File name too long

  3. Mike says:

    Doesn’t work for me and I have no firewall on my Linux Mint 17.2. I get the following and then nothing when I go to the URL specified in this tutorial:

    Sun, 13 Sep 2015 20:30:14 -0400 | INFO | server | | Serving using application : /usr/bin/vmstat -n 1
    Sun, 13 Sep 2015 20:30:14 -0400 | INFO | server | | Serving static content from : /opt/web_vmstats/
    Sun, 13 Sep 2015 20:30:14 -0400 | INFO | server | | Starting WebSocket server : ws://:8080/
    Sun, 13 Sep 2015 20:30:14 -0400 | INFO | server | | Serving CGI or static files : http://:8080/

    Any help greatly appreciated!!

  4. Joao says:

    Note that for Debian-based systems, on the script, the line “/etc/rc.d/init.d/functions” might need to be replaced with “/lib/lsb/init-functions”.

  5. Thiago says:

    Works fine !
    Thanks !

  6. Jake says:

    Thanks for this! Got it on all my Unix VMs,


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