Is there any well documented Redmine installation process - redmine

is there any well documented step by step procedure to install redmine?. I tried to install it on my Ubuntu machine.But i am unable to access it from another machine. please tell me how to it. is there any document which show how to host as centralized

See this guide: http://www.redmine.org/projects/redmine/wiki/redmineinstall. Its a general installation guide. I used it to install Redmine on Debian Jessie.

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how can I add software pre-requisites to cloud foundry nodejs

I am using Cloud Foundry's nodejs profile and my nodejs package.json requires chartjs-node-canvas. That package uses node-canvas and node-canvas is based on Cairo. The node-canvas site says I have to add the cairo-devel package to Linux (apt-get) in order for canvas to be installed.
Is it possible to add software to the OS image running on cloud foundry? If so, how?
You can do that by vendoring the dependencies. When you vendor them, you'll build locally in an Ubuntu Bionic Linux container or VM. Node will build everything that's required and you will no longer need the cairo-devel package (it's only needed to build).
The process to vendor dependencies is documented here.
The other option is to use the Apt Buildpack which is described on this SO post. That can be used to install any apt packages.

Termux: API 'termux-torch on' doesn't work

I have installed termux API from the Google Play store and in the termux app with pkg install termux-api on my Nokia 2.3 (Android 10) but when I try a simple command like termux-torch on, it just "hangs" there and does nothing.
Anything I can do to fix this problem?
1st: use 'pkg' not "apt"
pkg update
pkg upgrade
pkg install termux-api
run:
For on: termux-torch on
For off: termux-torch off
Download
https://play.google.com/store/apps/details?id=com.termux.api
And give it all permission
here is the fulfilled solution to your problem!
Make sure you have the f-droid version of termux installed on your device because the playstore version of this app has been stopped their updates and closed some of their reposetries. That's why you can't do anything more than basics on that version of application.
Make sure you have installed the termux API(application form) from playstore or any other source. The command
pkg install termux-api
Just install the API handler which termux needs to connect with the API application, but you must need to install the termux API application install first.
After installing the API give it all the permission.
Hope it'll help you to fix your problem. Happy coding ; )
Download the Termux API on Fdroid, then install with the command:
pkg install termux-api
and then type:
termux-torch on.. enj
It's just that the team is not updating termux in playstore. They have an updated version in FDROID APP. So you have to download fdroid. Go to appstore, then download the termux from there and you're good to go.

Step by Step install of wso2 EMM for Ubuntu

I've visited the wso2 website and the install instructions are very disjointed in that there is a lot of jumping around between pages. I've seen the following blog that seemed to streamline the instructions but it doesn't seem complete (plus it's out of date with the version it's installing) - https://maxmalm.se/blog/2014-06-17-installing-wso2-enterprise-mobility-manager-110
Has anyone seen step-by-step instructions on what needs to be done to completely setup wso2-EMM on a newly installed Ubuntu 14.04 virtual machine with just the O/S on it and none of the pre-reqs installed yet? The blog I mentioned above seems to give a lot of the necessary apt-get install bits but doesn't mention anything about a database (yet the wso2 has a whole section on installing and using a database).
Thank you.
To try out WSO2 EMM you will only need to have JDK 7 or 8 [1] installed as minimum to start off the server. WSO2 products are build to run with OOB database which is H2. So to get things started and play around, I suggest that you install java and then start the pack to get things going.
[1] https://docs.wso2.com/display/EMM201/Installing+on+Linux+or+OS+X
To getting started all you need is JDK installed in your machine and setting the Java related environment variables like PATH, JAVA_HOME. You might have to install the correct version of JDK for the particular version of the EMM.

Rethinkdb chef solo cookbook

Is there any RethinkDB chef solo cookbook that allows one to install latest rethinkdb on ubuntu 14.04 / AWS.
I tried couple options, however it didn't help.
https://github.com/vFense/rethinkdb-chef - how to install latest version?
https://github.com/sprij/rethinkdb-cookbook.git - source compilation takes hours
I would appreciate any help regarding this.
Thanks
Try the cookbook that is available from the community repository first:
https://supermarket.chef.io/cookbooks/rethinkdb
It claims to be integration tested on Ubuntu. If it doesn't work under chef-solo, then I'd advise you to switch to local mode chef client instead.
https://www.chef.io/blog/2013/10/31/chef-client-z-from-zero-to-chef-in-8-5-seconds/
PS
Also checkout Berkshelf for managing cookbook dependencies. It's a standard tool in the chefdk
I updated rethinkdb-chef to work with the latest version of RethinkDB as well as removed the network portion of the .kitchen.yml file. I validated that this does work on CentOS 6 and Ubuntu 14.04.
I still need to write tests as well as documentation. As per Marks answer, try to use the community supported version 1st. I created this cookbook, so that I can customize it as per my needs with vFense.

Vagrant, VirtualBox built-in or no?

Trying to get set up with Vagrant but getting the error:
The "VBoxManage" command or one of its dependencies could not be found.
Please verify VirtualBox is properly installed. You can verify everything
is okay by running "VBoxManage --version" and verifying that the VirtualBox
version is outputted.
Just confused because the Vagrant documentation states:
"The getting started guide will use Vagrant with VirtualBox, since it is free, available on every major platform, and built-in to Vagrant."
Don't want to install VirtualBox separately if its supposed to be included when I installed Vagrant. Running OSX 10.8 if it's relevant, guessing I just need to install VirtualBox? If that's the case, what do they mean in the documentation when they say it's "built-in"?
Installing VirtualBox is required if you plan on using VirtualBox with Vagrant. I'm guessing they meant that the VirtualBox integration is built-in?
Recently, they've abstracted out the VirtualBox specific code and are working on allowing for multiple providers. I believe VMWare is now supported in addition to VirtualBox.
I had this message but my problem was different. I use Vmware_fusion as the provider. Vagrant was not able to detect what provider I am using.It assumed that I am using VirtualBox. Had this issue fixed by calling vagrant up provider flag. Here is the full command
vagrant up --provider vmware_fusion