Can anyone help me on how to install OPCUA server and client on raspberry pi 2. It is better if anyone could help me with command line.
You can use "freeopcua" pure Python OPC-UA client and server library.
Project home page: http://freeopcua.github.io/
Installation is quite easy but not very fast.
In my case it was enough to do following installations steps:
apt-get update
apt-get install libxml2-dev libxmlsec1-dev libffi-dev
pip install cryptography
pip install freeopcua
Some examples.
Example client and server code in short form can be found here
It will be hard to find OPC UA servers and/or clients which can be directly installed on a device.
Instead there are many SDKs using which a developer can develop OPC UA server and/or client on a platform.
These are some of the latest and greatest OPC UA products launched recently.
http://opcconnect.opcfoundation.org/2017/04/new-products-april-2017/
Detect and SDK which suits your requirement and write a OPC UA server or client for Raspberry pi.
I hope it answers your questions
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I want to use Qpid Proton on the raspberry pi 4 but I have trouble installing it.
Well, it seems I could install it and I can use the examples from the Apache website.
https://qpid.apache.org/releases/qpid-proton-0.33.0/proton/python/docs/tutorial.html
However, the container's on_sendable callback does not seem to be executed.
After doing some research, it seems I need to add a topic exchange with the qpid-config, which is part of qpid-tools.
However, those are not available to install, both with pip or apt ...
Do you know how I can install Qpid-Tools on the raspberry pi?
Do I need to add a repository? And if so, where do I find it?
It's doubtful that there exists a build of qpid-tools fir the ARM based distributions so the short answer is probably that you can't get those tools there. The longer answer would be that you would need to likely build the qpid C++ binaries yourself on your Raspberry Pi using the included INSTALL instructions to try and reverse engineer the needed requirements and platform configuration that would allow it to build on ARM.
If you figure out the requirements you could feed that back to the Qpid community although I don't think there is much ongoing momentum for the Qpid C++ broker.
You can download the source bundle from the Qpid project site here.
I'm really stuck in installing services in Centos server. I almost browse all the pages in Google result. I'm a Windows user and very new in Linux environment, so it makes me difficult to understand all the results from Google.
The server doesn't have option to connect to the internet. Based on my research, my only way is to download all the RPM files in a machine with internet then transfer it to my server.
Problem: I cannot find the official package list of YUM so I can download it one by one like the https://bower.io/search/. There's a lot of downloadable files showing if I type in Google "YUM php7 rpm".
Edit: I am currently using YUM because I don't know any other way to install packages in Centos. I only want to install the following :
php7
nodejs
composer
supervisor
nginx
I don't have any access to any media. I just remotely access it via putty and Filezilla. But I have root access.
In my deep dive into the CentOS terminal, I was able to install and setup Jira, Confluence, and Bitbucket servers. However, the Hipchat Server seems to be based on something completely different.
Is there a step by step guide to installing Hipchat; From what's needed (dependencies) to installing (which I'm not even sure is part of the process) to seeing it work (log-in, etc.)?
Atlassian's official guide is written in such a way, that I look at it confused - as if it's a riddle that will never be solved. lol
By HipChat4, I'm assuming you refer to the HipChat Client. If so, have you tried the instructions outlined here?
sudo bash -c ‘cat > /etc/yum.repos.d/hipchat.repo << EOF_hipchat
[atlassian-hipchat]
name=Atlassian Hipchat
baseurl=https://atlassian.artifactoryonline.com/atlassian/hipchat-yum-client/
enabled=1
gpgcheck=0
EOF_hipchat’
sudo yum update
sudo yum install hipchat4
If what you're trying to install is the server, then keep in mind that HipChat Server is only supported on AWS (via the Atlassian provided AMI), or as a VM for private datacenters (via the Atlassian provided OVA). You can't install HipChat Server directly on a Linux box.
If your OS can run a virtualization platform (e.g. VirtualBox) then you can download the OVA from https://www.hipchat.com/server#get-hipchat-server, import it, start your VM and configure it. More thorough instructions are available here.
I have installed RASPBIAN Debian Wheezy on my raspberry pi.
I want to run a sip client on the pi, it should be able to register to a PBX (SIP Server), get a number, get calls and so on.
Is there any good sip library that is suitable to use in the raspberry pi?
thanks
liblinphone is a widely used open-source library for VoIP application development with API in C language. It also provides a python wrapper of SDK.
i'm working on a web server hosted on a board based on an ARM processor, that is named UDOO (http://www.udoo.org) and is similar to the Raspberry PI, and on it you can install a version of Linaro Ubuntu (11.10) modified for ARM or Android, both are downloadable from the project's site. Lately i've found a version of Ubuntu Server for ARM (http://www.ubuntu.com/download/arm/) and i wanted to know if it is compatible with all ARM devices, include the UDOO board. Also i wanted to know if the basic packages for the web server (like apache2, php5, mysql) and other packages (like mysql-connector c++, libcurl, g++) also work on ARM, under Ubuntu Server or under other Linux, like Linaro Ubuntu or Android. Someone can help me?
To install a Web Server on UDOO you can use Tasksel Installer:
sudo apt-get install tasksel
you can launch application with
sudo tasksel
There are other ways to install Ubuntu on the UDOO Board
http://dave.cheney.net/2013/10/20/installing-ubuntu-precise-12-04-on-a-udoo-quad
I just got my UDOO board today and I am going in that direction. So if Ubuntu runs nicely then most Ubuntu applications will run to.