Hello, i am trying to change the IP address in order to access to my UI for 
dspace 7.5.

The goal is to access the UI through a local IP (LAN) of the computer that 
contains both the front end and the back end. For example, to enter the UI 
I would like to put: http://192.168.1.10:4000 (where 192.168.1.10 is the IP 
address of the computer that contains the front end and the back end) 

As default in the backend  (in local.cfg)  UI set as:
dspace.ui.url = http://localhost:4000

I would like the UI URL to have address:  http://192.168.1.10:4000
so i open the local.cfg and i edit it, now the ip address for my UI is:
dspace.ui.url = http://192.168.1.10:4000 

After making changes to the local.cfg file, i have to re-run mvn package 
command in the ~/dspace-backend directory as well as the ant fresh_install 
command 
in the ~/dspace-backend/dspace/target/dspace-installer directory. 

When i start with the re-run for mvn package command,  it completed 
successfully , but when i start with the re-run for ant fresh_install 
command,  it ends in an error, the error says:
----------------------------------------------------------------------------------------------------------------------
init_installation:

prepare_configs:
    [mkdir] Created dir: 
/home/kali/dspace-backend/dspace/target/dspace-installer/config-temp
     [copy] Copying 221 files to 
/home/kali/dspace-backend/dspace/target/dspace-installer/config-temp
     [copy] Copying 1 file to 
/home/kali/dspace-backend/dspace/target/dspace-installer/config-temp
     [copy] Copying 14 files to 
/home/kali/dspace-backend/dspace/target/dspace-installer/config-temp

init_configs:
     [copy] Copying 2 files to /dspace/config
     [copy] Failed to copy 
/home/kali/dspace-backend/dspace/target/dspace-installer/config-temp/ant.properties
 
to /dspace/config/ant.properties due to 
org.apache.tools.ant.util.ResourceUtils$ReadOnlyTargetFileException can't 
write to read-only destination file /dspace/config/ant.properties
     [copy] Failed to copy 
/home/kali/dspace-backend/dspace/target/dspace-installer/config-temp/local.cfg 
to /dspace/config/local.cfg due to 
org.apache.tools.ant.util.ResourceUtils$ReadOnlyTargetFileException can't 
write to read-only destination file /dspace/config/local.cfg
   [delete] Deleting directory 
/home/kali/dspace-backend/dspace/target/dspace-installer/config-temp

BUILD FAILED
/home/kali/dspace-backend/dspace/target/dspace-installer/build.xml:757: 
org.apache.tools.ant.util.ResourceUtils$ReadOnlyTargetFileException: can't 
write to read-only destination file /dspace/config/ant.properties
        at 
org.apache.tools.ant.util.ResourceUtils.copyResource(ResourceUtils.java:390)
        at org.apache.tools.ant.taskdefs.Echo.execute(Echo.java:64)
        at 
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:299)
        at jdk.internal.reflect.GeneratedMethodAccessor4.invoke(Unknown 
Source)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)
        at 
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
        at org.apache.tools.ant.Task.perform(Task.java:350)
        at org.apache.tools.ant.Target.execute(Target.java:449)
        at org.apache.tools.ant.Target.performTasks(Target.java:470)
        at 
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1401)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1374)
        at 
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1264)
        at org.apache.tools.ant.Main.runBuild(Main.java:818)
        at org.apache.tools.ant.Main.startAnt(Main.java:223)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:284)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:101)

Total time: 2 seconds
 
----------------------------------------------------------------------------------------------------

Because ant fresh_install error, the server (back end) doesnt works and I 
can't change the IP to access the UI.

Any kind of help will be welcome, thank you. 

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