http://forums.visokio.com/discussions/tagged/Linux/feed.rss Mon, 30 Oct 17 15:01:09 -0400 Tagged with Linux - Visokio Forums en-CA http://forums.visokio.com/discussion/2617/printing-pdf-export-from-linux-os-without-a-gui Fri, 27 Jun 2014 11:51:04 -0400 donald 2617@/discussions printing and PDF download from mobile Server installations when running on Linux OS without a GUI. You might experience printing Mobile reports with "black images".
Please follow these instructions to workaround this issue.

MAIN SOLUTION (should work across different Linux distributions; tested on CentOS and Ubuntu 14.04): Use XVFB

You need to install these additional packages on your headless Linux machine: xvfb, libxss1
On Ubuntu Server 14.04 you also need dbus-x11 libnss3 libgconf2-4 libfontconfig libpangocairo-1.0-0 libXcomposite1 libasound2 libxtst6 libcupsmime1 libgtk2.0-0
sudo apt-get install xvfb libxss1 ...


Then you just need to start Omniscope Server through this command:
xvfb-run -a --server-args='-screen 0, 1024x768x24' ./omniscope-server-headless.sh


If this command fails, run xvfb-run with "-e /dev/stdout" option to see the error messages in the console.
e.g. in case of Font error you may need to install these additional packages:
sudo apt-get install -y xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic

If you are running the Omniscope Server through Upstart background service, in the visokio-omniscope server installation directory modify the _launch.sh file (last line) from:
"$JAVA_CMD" $JAVA_VM_PARS $ADD_VM_PARS -cp "$JAVA_CP" "$@"
to
xvfb-run --server-args='-screen 0, 1024x768x24' "$JAVA_CMD" $JAVA_VM_PARS $ADD_VM_PARS -cp "$JAVA_CP" "$@"

Then start the service as usual as per instructions http://www.visokio.com/kb/linux-installs
N.B. xvfb-run seems not compatible with privbind. So if you are using privbind to bind to reserved port (e.g. 80) you need to use an alternative solution: e.g. setting up Linux IPTABLES to redirect port 80 to Omniscope port 8080 see here for reference https://www.frozentux.net/iptables-tutorial/iptables-tutorial.html#REDIRECTTARGET

]]> http://forums.visokio.com/discussion/2932/linux-ports-in-red-hat-flavours Wed, 13 May 2015 07:51:20 -0400 aknotts 2932@/discussions
We have it installed but can't work out how to get the default port bound to the correct port number. At the moment we have to use the syntax https://mysevber.com:portnum where we really just want users to go to https://myserver.com.

Any ideas gratefully received.

Thanks

Andy]]> http://forums.visokio.com/discussion/1106/activation-linux-version-of-servers Tue, 22 Nov 2011 04:29:50 -0500 steve 1106@/discussions

• installable (by extracting & following simple instructions)
• licensable (through activation, as per the Windows and Mac versions, but supporting command-line activation)
• supporting any common x86 or x64 Linux systems on which Java 6+ runs
• compatible with text-only Linux servers, for use in headless mode as Server edition
• compatible with graphical Linux servers, for use as a UI application as Viewer, Desktop or Server editions
• supporting use as a service under /etc/init.d

Please vote or comment to register interest.]]> http://forums.visokio.com/discussion/2379/installation-omniscope-server-on-amazon-ec2-linux Wed, 16 Oct 2013 05:11:46 -0400 istvan 2379@/discussions Setting up an Omniscope Server on an EC 2 instance on Amazon

1. Register an account at http://aws.amazon.com/ it will ask for email address, contact address and credit card details
   
   
2. Got to http://aws.amazon.com/ and select My Account/Console -> AWS Management Console and click "EC2"
   
   
3. Click the "Launch Instance" button
   
   
4. Select "Ubuntu Server 12.04.2 LTS" (or whatever is the latest LTS release) 64 bit version
   
   
5. Select at least an m1.large instance type(Memory optimized image highly recommended)
   
   
6. Under "Configure Security Group" ensure that SSH and HTTP are added, if not present please add them.
   
   
7. After everything is configured properly click "Launch" and select "Create a new key pair", give it a name and click "Download Key Pair" (usage: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-key-pairs.html)
   
   Secure the ".pem" file, because that will be required for logging into the server and click "Launch Instances"
   
   
8. The Instance should be available under the menu "Instances" in the "EC2 Dashboard"
   
   
9. Click on the instance click the "Connect" button from the top, it will show the full ssh command to connect to the machine (ssh -i yourkey.pem ubuntu@yourpublicdns). A Java SSH client is also available from Amazon that can be used directly from the browser. We also recommend Putty for Windows.
   
   
10. Install Omniscope server:
    After logging in with SSH, you can manually install Omniscope, see http://www.visokio.com/kb/linux-installs
    
    
11. Deploy some IOK files to the HTML5 browser version “sharing folder” (webroot) typically at [home]/omniscope-server/mobile/
    
    To access the file system of the server under Windows you can use WinSCP, see: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/putty.html#Transfer_WinSCP
    
    We also recommend using Beyond Compare for Windows which natively supports SCP URLs such as scp://ubuntu@yourpublicdns/
    
    
12. Configuration changes must be made manually in the XML, typically by configuring a separate Windows installation (you’ll need another test key for Omniscope Server) and deploying “C:/Users/username/omniscope-server/config.xml” to the Linux server.
    
    For example, you can configure usernames and passwords, and can enable web-based “file management” (upload, delete etc.).
    
    You can additionally create “folder.xml” files within different sub-folders of the “sharing folder” for folder-specific users and permissions. See “folder.xml.default” automatically created on first start in the sharing folder.
    
    

]]> http://forums.visokio.com/discussion/2364/linux-server-version-2.9-available-for-ubuntu-centos Fri, 04 Oct 2013 11:27:21 -0400 antonio 2364@/discussions here, starting from version 2.9 we have added support for CentOS 5 onwards.

Even though not tested, you may be able to run Omniscope on all the other main Linux distributions (e.g. RedHat, Debian, Fedora, OpenSuse).
So feel free to try it and let us know your feedback.

Installation, licensing and service configuration instructions:
http://www.visokio.com/kb/linux-installs

Download:
http://www.visokio.com/download/madagascar?platform=linux]]> http://forums.visokio.com/discussion/2116/new-linux-server-version-2.8- Thu, 02 May 2013 11:41:29 -0400 steve 2116@/discussions
We are initially supporting 64-bit Ubuntu Server 12.04 LTS and later, and the 64-bit Amazon EC2 AMI.

We are currently not supporting Omniscope Viewer/Desktop nor the Omniscope Server desktop interface. We are only supporting use on systems without a graphical environment, where Omniscope Server runs as a "headless" service. So, for now, Scheduler Task Lists must be configured on another system using a Server+ Edition spare key and the XML Task List configuration files either transferred over to the Linux box or saved in a shared folders.

As per other systems, a license activation key will be required. In this case the key is entered using commands entered into a terminal.

Installation, licensing and service configuration instructions:

http://www.visokio.com/kb/linux-installs

Download:

http://www.visokio.com/download/madagascar?platform=linux]]>