I know this question has been asked several times around the internet, but I have spent about a week trying to solve this problem with little luck.
I am trying to install JavaCommAPI (an archived Java package to allow communication with rs232) on a remote linux Ubuntu 11.0, 32-bit server in order to deploy a web project which I have developed on a local apache server on my windows PC.
The thing that puzzles me is, I am able to get the .war web project to deploy on a local apache server on a separate 32-bit LinuxMint16 PC by correctly placing the javax.comm.properties, comm.jar, and libSerialParallel.so files in their respective places.
I use System.getProperty("java.library.path"); in order to find the correct library path in order to install correct files.
On my LinuxMint16:
javax.comm.properties -- /usr/lib/jvm/java-7-openjdk-i386/jre/lib
comm.jar -- /usr/lib/jvm/java-7-openjdk-i386/jre/lib/ext
libSerialParallel.so -- /usr/lib/jvm/java-7-openjdk-i386/jre/lib/i386
....works!
On my remote Ubuntu server I did the exact same for its reported library path
(for example: /usr/local/jdk/jdk1.7.0_45/jre/lib/javax.comm.properties ;
/usr/local/jdk/jdk1.7.0_45/jre/lib/ext/comm.jar ;
/usr/local/jdk/jdk1.7.0_45/jre/lib/i386/libSerialParallel.so)
...fails =(
Things of note: I added the needed apache jars and comm.jar to my libraries in Eclipse using the BuildPath wizard (right click on project --> Build Path-->add external jars) which points to local files on my PC which I obviously cannot use for a remote server which I am only accessing through command line. May this is affecting it somehow?
I tried to get error output (System.err) from the Java Console printed to a separate file for my remote server as that feedback was very helpful in getting all the files sorted on my LinuxMint PC.
PrintStream ps = new PrintStream(pathName);
System.setOut(ps);
System.setErr(ps);
Which again, is oddly working beautifully to print the stream to a local .txt file on my LinuxMintPC but not to the one I designate on my remote ubuntu server.
I am really at a wits end here!! Am I mixing and matching appropriate versions of Systems prohibiting things to run smoothly? I am not sure how to proceed from here, if anyone has any insights I would die of happiness. Thanks
I needed to install OPEN JDK7 on my ubuntu, put files in appropriate library paths (as described above) and now it works.
Related
I have been running a data server based on IIS/ASP/SQLServer for a few years on my old PC (hereafter PC1) now running Windows 10 and too old to move on to Windows 11. The ASP code files and shared library files are located in folders code and lib, respectively, both of which under the site's root directory. The code files in folder code start with the directive <!— #include virtual=“/lib/library.asp” —> and it all works fine.
I have now got a new PC (hereafter PC2) running Windows 11 and am attempting to transfer the data server to this new device. I have installed IIS on PC2, imported the code and library files with the same folder structure as on PC1 and ensured that all Windows Features and IIS Settings on PC2 match those on PC1. However, when I call up an asp page on PC2, I get the error message “Include file not found”.
I have tried various approaches suggested in on-line user groups, such as setting the IIS parameter EnableParentPaths to True or selecting ServerSideIncludes under Windows features, but none of these worked (and none of these required on PC1). I have checked permissions to the library folder but found them (as expected) to be identical to those of the code folder.
I can’t understand why I get a different behaviour on PC1 and PC2 when all settings are identical (bar the fact that they run different versions of Windows and therefore IIS). Unless I missed out a well-hidden setting somewhere out of IIS and Windows Features?
I am running out of ideas to sort this out. Any suggestion would be welcome.
Thank you for your answers. Yes SSI is installed and yes I should move away from ASP, but the learning curve is steep and I need to get this working first.
I have actually stumbled on the answer by accident: I had restarted the site on IIS after the various changes but I hadn't restarted the PC. Doing so seems to have solved the problem, as I am now through. How stupid of me not to have figured this out earlier! Lesson learnt.
Let me give a quick background of the work I do and then I'll explain the problem I am facing.
I am a software developer with more than 15+ years work experience. My work involves a lot of varied tasks:
data analysis using R, Python
development of web applications using Ruby on Rails, JS, etc.
building models using open source libraries
So far, I have been doing all this in my personal laptop (Ubuntu 18.04) and have faced no issues.
But I would soon need to start using a laptop provided by the organisation that I am working for. This org is not a IT company, it's a public body. They only use Windows (10) and don't provide admin access to anyone. It's very hard to get permission to install any kind of "approved" software. Just to give an example, they refused to install Chrome in my laptop as they wouldn't be able to control the updates.
So here's my problem - what do I do to work peacefully using their laptop? The primary reason I have to use the work laptop is that there are a lot of important documents kept in shared drives that are accessible only in their machines.
I have been looking at options like WSL or Hyper-V. But, before I put in a request to the IT team to get them to agree, I wanted to know a few things:
1) Which among WSL or Hyper-V would be the better approach for setting up the dev environment that I want?
2) IF I get the IT team to install WSL/HV, would I be able to set up everything else without having to go back to them for each software? Is there a way of secure local admin access these options would provide that will ease their concerns?
3) Is there some other way of setting up what I want?
If still applicable and actual I can share my solution:
If you should work on a windows machine where you don’t have administrative privileges, you can very easily make a portable R/Rstudio installation.
Download a recent version of R from the CRAN site and the recent version of RStudio. After download extract RStudio installation exec with 7Zip and copy files from $_OUTDIR to the desired location (in case you making an update, simply overwrite all files, that already exist). Your RStudio executable will be in
your-chosen-directory/bin/rstudio.exe
Then run CRAN-R installation, ignore the warning that you don’t have administrative privileges and go forward until installation will complete. Run RStudio, from the menu
Tools->Global Options
locate where your R installation is located.
If you performing an update (more recent version of R), copy all files from the library subfolder of the old R installation into new, but this time DON’T OVERWRITE! This operation vill preserves the packages you have installed in the previous version of R. After copying update all your packages from the RStudio window (Packages->Update). When the packages update process will end check which packages failed to update (You will see warning messages near them in the RStudio console). Remove these packages (write down names of failed packages and delete corresponding folders from library subfolder). For this, you will need to exit from RStudio. After deletion launch RStudio again and execute the packages install command in the RStudio console:
install.packages(c("package1", "package2", "package3"))
Congratulations, You are ready to go!
We're about to integrate a firebird database in our software via IBPP. Accordingly to the firebird documantation this should be possible.
We already managed to use the firebird database via IBPP while the service was running. But, we want avoid to run a service. On windows we already accomplished to do this - but on the linux side there are two main differences:
Installation
On windows it is not neccessary to make an installation. On Linux it seems to be, as the docs say:
Finally, you can't just ship libfbembed.so with your application and use it to connect to local databases. Under Linux, you always need a properly installed server, be it Classic or Super.
Is this true? I found the firebird documentation beeing outdated sometimes. If this is still valid, how to deal with this installtion? Can we just run it on the customer's pc. I looked at the shell script. It starts a service. For me it seems running this service is needed during installation process. Anyway, this would be no problem if the service is running only for the installtion and is never needed afterwards - but I'm not sure about this.
IBPP
On windows you just load the DLL via loadlibrary: We put the fbembed.dll, icuuc30.dll and icudt30.dll on any_dirctory, changed the passage in IBPP where the embedded dll is called to loadlibary("any_directory\fbembed.dll") and added any_directory to PATH variable. Everything works now. (Aside: By doing this it is possible to call the database via a DLL we created using IBPP. This DLL can be used by every EXE we give to the customer withour caring about the path the EXE is places in).
But on Linux I didn't found the code where this is done. On this HOWTO it seems a special directory structure is needed. Is this really neccessary? Is it possible to place the .so-files on any_directory and run the application from another_dirctory? Is it neccessary to add loadlibary to Linux section in IBPP? (BTW: My problem is I can't really test things because Linux integration is doing someone else for me).
I would like to send my Python3 script to my father-in-law and grandmother. Each has their own Windows machine, one is running Windows 7 and the other is running XP.
Not sure how to package it up for them to run on their respective machines. Is there such a method?
My script prompts, while in the IDE environment, for Keyword, path, filename. So there are some inputs, the user has to type in. Not sure if that will affect the portable script creation.
After reading through some responses here on StackOverFlow, I found py2exe does not work with Python 3.
Also Pytonw, suggested here as well, looks very complicated. I don't think either of my relative could carry out those steps.
Lastly CX-Freeze site I get ublock filters-Badware risks and a big warning window when I visit their website.
I've used cx-freeze to deploy python apps compiled to windows .exe files for us by computer novice users for several years and it has worked well. you will occasionally run into issues with dependencies you will have to take extra steps for (Datetime for example) but nothing that isn't surmountable. The easiest way to handle it is to install the folder on the computer yourself and create a desktop shortcut to it for the user. That keeps it simple for them. If you are not close to them you can always use a program like team viewer to gain access to their computer like remote desktop.
I used to use win2003 as my server,my web applicaion file has some files like \image\forum\1.jpg.
now, i plan to use CENTOS as my server. i notice that the route in linux is /image/forum/1.jpg.
question1: is the win route format is different with linux as i recognized?
question2: how to revise the route format before move to CENTOS? any advice is welcome.
I build my code on a windows 2k3 machine and then roll out live to centos servers. It's always worked either way without changing a thing :-) It's never caused me an issue.
You should have no need to change your code