When running a guest executable in Service Fabric I have noticed that some environment variables do not seem to be mapped to where I would expect them to be.
A few examples of these are that %appdata% didnt resolve to the usual:
C:\Users\\AppData\Roaming
but instead resolved to somewhere deep inside C:/windows
I have also noticed that when running applications using Erlang that the '.erlang.cookie' file is usually placed in the user root:
C:\Users\.erlang.cookie
but instead is trying to be created in C:\Windows
Is there a reason to why these are changed in these ways and currently I am having to make the guest executable not use 'appdata' and grant it administrative privileges using a policy in the application manifest to give it write access to C:\windows to write the '.erlang.cookie'.
That's because services run under the NETWORKSERVICE account by default.
You can do runas, or use the configuration system for settings.
https://learn.microsoft.com/en-us/azure/service-fabric/service-fabric-application-runas-security
https://learn.microsoft.com/en-us/azure/service-fabric/service-fabric-reliable-services-configuration
Related
First off, I didn't have this issue until setting up my agent to run as a windows service.
My company has custom cmdlets we have built that are part of the default profile that is loaded when running powershell. I am using Jenkins to execute a batchfile that iterates a command over a series of machines. After settings up Jenkins to be a service, it no longer has access to those cmdlets leading me to believe the profile isn't being loaded. If I load the profile manually by running the profile script, it only seems to work on the first machine.
When setting up Jenkins as a service, I configured it to be the same user that I would manually run these scripts as if I were to login to the computer. I have verified it is using the proper user with $env:UserName.
I am at a loss as to why setting up jenkins as a windows service broke this. I could revert to using the command line to connect to Jenkins, but that doesn't always connect post server maintenance or after a power outage.
Did I configure something wrong or is there a way to load profiles instead of jenkins always running -NoProfile?
Update - I noticed when running $PROFILE it was set to a default profile location that did not exist. It seems when opening powershell manually on the machine it loads the AllUsersCurrentHost profile but this doesn't happen when using powershell from Jenkins when running as a service. I created the file location where it said it was using the profile and copied the default profile there and it works. I am still not sure why the behavior differs, but at least I found a solution.
I am writing deployment scripts using Powershell to install Scheduled Tasks, Windows Services and IIS App pools.
Each of these items will be run under the identity of an Active Directory domain user. My issue is that the business rules enforced on the servers state that no process or user can write to the C drive.
Therefore i need to direct each installed object to use the E drive for temporary storage of any kind.
How can i assign the temp directory environment variable of a domain user using powershell on a server that will have no 'knowledge' of that domain user until i instantiate the installed objects?
When it comes to the IIS app pools I have found a (hacky) solution that could potentially work in this:
https://serverfault.com/questions/711470/applicationpoolidentity-environment-variables-iis
that requires me to set the app pool to run as the profile, fire up the pool, snoop registry keys, obtain a SID, and then modify registry keys to set the environment variable for the temp drive.
Is there an easier way? And how could i do this for services and scheduled tasks?
Pie in the sky - i write one powershell script to modify the temp env parameter for this one domain account before installing any of these objects and then when they are installed it "just works".
Any suggestions?
I am encountering several situations where, in a Chef recipe with powershell_scipt, a command appears to fail, whereas if I run the same command in powershell outside of Chef, the same command works.
The two in particular are "regedit", which I am trying to use to set a key for app compatibility and the other is "net use z:...." to created a mapped drive. Both of these seem to work fine if I run them in powershell, but if I use them inside a recipe inside powershell_script, they don't appear to do anything.
So I'm wondering is this because Chef runs commands that are inside powershell_script at some lower privilege level?
Also if so, how do I change it so that the regedit and net use would work?
Thanks,
Jim
EDIT 1: This seems to work for adding the registry entry I needed:
registry_key "HKEY_CURRENT_USER\\Software\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags" do
values [{
:name => "{2b9034f3-b661-4d36-a5ef-60ab5a711ace}",
:type => :dword,
:data => 00000004
}]
action :create
end
That prevents the compatability popup that I am getting when we run the Sharepoint installer.
EDIT 2: I hope that this is ok, but for the record and more visibility and hope that I remember this, I found this re. mapping drives in Windows and Chef:
Mount windows shares on a windows node with Chef
and:
https://tickets.opscode.com/browse/CHEF-1267
I haven't tried that yet, but that seems like the answer to my drive mapping need.... hopefully..
The chef client service runs as Local System (SYSTEM) by default.
In Windows, that user has full privileges on the local system, like root basically, but on the network it authenticates as the computer object.
So it you are trying to use regedit to change something in for example HKEY_CURRENT_USER then you need to remember that the code will not see the same "current user" as you will when you run it in interactively. Also, regedit is an .exe; you should really do what you need through the PowerShell providers or .Net objects.
For net use you are trying to map a drive. It's likely that the computer account doesn't have the rights to the share that your user has. Again, net.exe is a separate executable. net use maps a drive to a drive letter (usually) and you shouldn't be doing that in a configuration script, in my opinion. You should access the UNC path directly, but either way I still think that you're probably running into a permissions issue here.
You could change the credentials of the service to use a user account that has all the rights you want, but before doing something like that you should consider changing your workflow to not need that.
I have a bunch of PowerShell scripts that call out to external programs to perform certain actions (no choice about this). I'm trying to find a way to allow users to connect to a constrained remote session using delegation to run these scripts (and the external binaries) as a privileged account, WITHOUT the user being able to execute the binaries with the privileged account.
I've found that if I constrain the endpoint using NoLanguage and RestrictedRemoteSession, or using a startup script to remove access to those parts of the system that it breaks the scripts because they're no longer able to execute the binaries.
Is there any possibility of making this work, or will I have to rewrite my existing scripts as DLL cmdlets which could then make the calls to the external binaries (or write just a proxy command in a DLL to make the calls)?
Create scheduled tasks without a trigger, configure them to run as a privileged user, and have your restricted users start them from the Task Scheduler.
You are looking for JEA or Just Enough Admin. It does exactly what you are trying to do with restricted endpoints.
http://blogs.technet.com/b/privatecloud/archive/2014/05/14/just-enough-administration-step-by-step.aspx
Start with the video. Jeffery Snover may give you the details needed to make your solution work as he explains step by step how JEA was built.
I have a batch file where I copy file from a different server. I have no issues running it on the server. But when I try to run it from a web application, the file does not copy. I keep getting access denied error. I have used xcopy, copy and robocopy.
I have provided full access to source and destination folder for all users.
No luck. Keep getting the same error :
copy /y \N01APW280\d$\Oracle\Middleware\user_projects\epmsystem1\diagnostics\logs\essbase\essbase_0\app\PLPLAN\PLPLAN.LOG D:\Hyperion\ERPI_Actuals_Load\Logs\
It is rather awkward to try and use a command-line utility, such as copy, from a web app; you should rather be using the programmatic abilities within your web application instead.
Aside from that, you main issue is that web apps are typically executed with very limited privileges, using local machine accounts that have no way of accessing administrative level shares on remote machines such as \N01APW280\d$. Another possible issue is that the local account that is being used by the web app cannot write to D:\Hyperion\ERPI_Actuals_Load\Logs\ folder. And finally, your app may have enough privileges to instantiate an external process such as copy.exe.