I would like to use Orange3 for making analysing on BigData. Of course I have to put Orange and the DB on the same computer, that I would like to access via web (from another machine). I also would like to give the access to many people.
Is there a way to use Orange3 interface via a web interface ? And to open several Orange3 interfaces on the same server ?
Thanks,
Best,
mike
Albeit it does support multiple platforms, Orange looks like a single desktop application which does not imlement a client-server architecture and can't be run in a web browser (it uses Qt).
Without other third-party remote-desktop tools, like various RDP clients, ssh+X11, LogMeIn, TeamViewer etc., my guess is you're out of luck.
Related
We are setting up a GIS server based on qgis / postgresql-postgis and geoserver.
We are missing an important tool, the cataloging and metadata system.
Postgresql and geoserver are on a windows server 2019 virtual server.
We are GIS & geomatics people but not computer scientists. We are therefore looking for an opensource solution that is relatively easy to install and configure, which does not require extensive computer skills.
What solutions do you think would be suitable? We have identified :
Geonetwork,
Georchestra https://www.georchestra.org/software.html
Geonode
Are there others?
Among these 3 solutions, would there be one easier to set and use, which would be functional on both linux and windows?
Are there other criteria to take into account in our selection of technology?
Thank you very much for your help, recommendation and / or feedback.
GeoNetwork might be the silver bullet (though it tends to do more than the job, since it also features an integrated geodata viewer).
geOrchestra provides both GeoServer and GeoNetwork, and a Single Sign On feature. It also provides additional modules like a user management console, a data upload tool ("datafeeder"), analytics, mapstore and so on. It's very modular and leaves plenty of room for integration.
GeoNode provides a fully integrated environment. It's like a social network dedicated to data. It's also based on GeoServer and has a SSO.
None of the above are easy to setup & maintain if you do not have basic computer skills. With a docker composition, you may have one of them running pretty quickly though.
You may try to use Cartoview which is an extension of GeoNode, visualizing the layers and maps in geospatial apps. It can be used in different environments (Linux, Windows, macOS).
You can download the windows installer from the link above and give it a try!
I consider to use GTK+ with Broadway backend for development of device control application.
Device is with functionality similar to broadband modem/router (I intentionally selected example which is familiar for all :-) ).
Device should be controlled remotely via web browser.
My concern is about performance of such control. I'm afraid that Broadway may be a bottleneck.
Probably I'm wrong but even in simple pilot I built it looks not so good.
It will be very appreciated to have your inputs based on real experience.
Thanks a lot
I've used broadway to deploy gtk+3 apps for multiple projects - usually in cases where the client's desktop is locked down, or people are stuck on Windows. Broadway performs significantly better than VNC or RDP.
There are solutions to the single-user nature of a broadway application. For example, I've developed a partial solution: http://tesla.duckdns.org/transparent-proxy-for-broadway-gtk3-html5-backend/ ... if you want security, you need to implement a login page, cookie setting, and port redirection based on a cookie. The example code is commented as such. I've been meaning to complete all this, but every time I've done it, it's been in a highly custom way for particular clients - not something that I can really open-source.
I check iOS document and also google it for a while and get the impression that iOS does not support samba (although there is a samba app for jailbreak iPhone).
But then how do the app FileBrowser achieves that? Does that mean they implemented samba support by their own ?
I also find there is an open source library called tango that provides limited support for samba. So my question is that the best samba support I can get ?
I spent quite some time in implementing my own SMB client so I would like to share some experience here.
First do not use tango in your production code because once you become familiar with SMB you will realize that its implementation is problematic, e.g. it does not support unicode and in some several cases it is not correctly padding so you can't access the folder. And I also heard people said they can't connect window 7 with it.
Second, to summarize my experience I find jcifs guys had said the best: "anyone who wants to implement the CIFS needs to know one very important thing - the "official" CIFS documentation is not accurate
and does not reflect reality. There is NO specification. Do not believe anything you read in the IETF draft or the SNIA document (same document different formatting). Use it only as a hint. The definitive reference is whatever you see on the wire.
WireShark Rules!
... look at JCIFS for design inspiration such as how it puts the request and response into a map by MID and encodes and decodes frames.
Then implement the following commands:
SMB_COM_NEGOTIATE
SMB_COM_SESSION_SETUP_ANDX
SMB_COM_TREE_CONNECT_ANDX
SMB_COM_NT_CREATE_ANDX
SMB_COM_READ_ANDX
SMB_COM_WRITE_ANDX
SMB_COM_CLOSE
all responses for above
"
The only thing I can add is that , you also need to implement TRANS2_FIND_FIRST2 request/response to query the files inside a folder and if you want to find out how many shared folders the server exposes you need to implement NetShareEnum Request/Response.
I used libsmbclient from samba package (http://www.samba.org) for SMB operations on iOS.
You can look on my project https://github.com/kolyvan/kxsmb (objective-c wrapper on libsmbclient). For now it supports a limited set of SMB operations. It mostly was designed for browsing local net and retrieving files from SMB shares.
iOS doesn't give you access to a filesystem that you may be used to. You can read and write files inside your own App's private area, but that's all. You could potentially implement another file system in your application, but you won't be able to use normal file operations.
I'd bet FileBrowser implements the protocol inside their app and implements a file system like layer on top of that for access. I'd guess you could either try to port an existing samba library or roll your own.
iOS does not have any APIs to work with SMB. However, SMB is currently documented by Microsoft and implementing it is not impossible (although not easy too). I've created a freeware project which contains most of what you need to handle SMB. See
https://sourceforge.net/projects/smb4ios/
I'm trying to find a free software that would provide a web interface to a file system (so you can add / remove files / directories, possibly edit them). If possible, it should handle versioning (only simple things needed : back to previous versions), and user management.
Can you point me to anything like that ? thanks
Update1 : I'm looking for a solution that would work on unix (e.g. linux).
Update2 : something like a subversion web interface on an Apache server would do the trick, alas I couldn't find any user friendly subversion web interface, Do you ? Plus it shold allow users to create new content.
You want something that supports something called Web Distributed Authoring and Versioning (look up WebDAV). Apple's MobileMe does this, as does Subversion over httpd, as does MS Sharepoint.
In fact, if you just want WebDAV functionality for free, try out Subversion and Apache.
Have you looked at DropBox? It's a hosted solution (2GB for free). It has a web interface that allows you to do rollbacks/etc.
I'm looking for a way to give out preview or demo versions of our software to our customers as easy as possible.
The software we are currently developing is a pretty big project. It consists of a client environment, an application server, various databases, web services host etc.
The project is developed incrementally and we want to ship the bits in intervals of one to two months. The first deliveries will not be used in production. They have the puropse of a demo to encourage the customers to give feedback.
We don't want to put burden on the customers to install and configure the system. All in all we are looking for a way to ease the deployment, installation and configuration pain.
What I thought of was to use a virtualizing technique to preinstall and preconfigure a virtual machine with all components that are neccessary. Our customers just have to mount the virtual image and run the application.
I would like to hear from folks who use this technique. I suppose there are some difficulties as well. Especially, what about licensing issues with the installed OS?
Perhaps it is possible to have the virtual machine expire after a certain period of time.
Any experiences out there?
Since you're looking at an entire application stack, you'll need to virtualize the entire server to provide your customers with a realistic demo experience. Thinstall is great for single apps, but not an entire stack....
Microsoft have licensing schemes for this type of situation, since it's only been used for demonstration purposes and not production use a TechNet subscription might just cover you. Give your local Microsoft licensing centre a call to discuss, unlike the offshore support teams they're really helpful and friendly.
For running the 'stack' with the least overhead for your clients, I suggest using VMware. The customers can download the free VMware player, load up the machines (or multiple machines) and get a feel for the system... Microsoft Virtual PC or Virtual Server is going to be a bit more intrusive and not quite the "plug n play" solution that you're looking for.
If you're only looking to ship the application, consider either thinstall or providing Citrix / Terminal services access - customers can remotely login to your own (test) machines and run what they need.
Personally if it's doable, a standalone system would be best - tell your customers install vmware player, then run this app... which launches the various parts of your application stack (maybe off of a DVD) and you've got a fully self contained demo for the marketing guys to pimp out :)
You should take a look at thinstall(It has been bought by vmware and is called thinapp now), its an application virtualizer.
It seems that you're trying to accomplish several competing goals:
"Give" the customer something.
Simplify and ease the customer experience.
Ensure the various components coexist and interact happily.
Accommodate licensing restrictions, both yours and the OS vendor's.
Allow incremental and piecewise upgrades.
Can you achieve all of these by hosting the back end (database, web server, etc.) and providing your customers with a CD (or download) that contains the client? This will give them the "download/upgrade experience" that goes along with client software, without dealing with the complexity of administering the back end.
For a near plug-and-play experience, you might consider placing your demo on a live linux or Windows CD. Note: you need a licensed copy of Windows for the latter.
Perhaps your "serious" customers might be able to request their own demo copies of the back end as well; they'd be more amenable to the additional work on their part.
As far as OS licenses, if your vendor(s) of choice aren't helpful, you might consider free or open-source alternatives such as FreeDOS or linux.
Depending on if you can fit all the needed services into a single OS instance or not...
Vmware Ace or whatever they're calling it nowadays will let you deliver single virtual machines under strict control, with forced updates, expiration and whatnot. But it sounds easier to just set up a demo environment and allow remote access to it.
The issue here I guess is getting several virtual machines to communicate under unknown circumstances - if one is not enough?
An idea then is to ship a physical server preconfigured with virtualisation and whatever amount of virtual servers needed to demonstrate the system.
Using trial versions of the operating system might be good enough for the licensing dilemma - atleast Windows Server is testable for 60 days, extendable to 240 when registering.
Thinstall is great for single apps, but not an entire stack....
I didn't try it yet, but with the new version of thinstall you are able to let different thinstalled application communicate.
But I guess you're right a vm-ware image would be easier