3.2b1 Duet 3 (DCS is not started)

Dougal1957

@chrishamm said in 3.2b1 Duet 3 (DCS is not started):

Thanks, it's indeed a permission issue - not sure why this problem didn't show up during our internal tests though. You need to change the service file /usr/lib/systemd/system/duetcontrolserver.service in order to fix it to
[Unit]
Description=Duet Control Server

[Service]
ExecStart=/opt/dsf/bin/DuetControlServer
TimeoutStopSec=15
Restart=always
RestartSec=5
Type=simple
User=dsf
Group=dsf
UMask=0002
CapabilityBoundingSet=CAP_SYS_PTRACE CAP_DAC_READ_SEARCH
AmbientCapabilities=CAP_SYS_PTRACE CAP_DAC_READ_SEARCH

[Install]
WantedBy=basic.target
Note the new permission CAP_DAC_READ_SEARCH. I'll update the DCS package again tomorrow.

Chris can you put that in simple layman's terms please How do I do that?

bcrazycramer

@chrishamm said in 3.2b1 Duet 3 (DCS is not started):

/usr/lib/systemd/system/duetcontrolserver.service

Thank you! That fixed it.

chrishamm

@Dougal1957 Sure thing, run

sudo curl https://pkg.duet3d.com/duetcontrolserver.service -o /usr/lib/systemd/system/duetcontrolserver.service
sudo systemctl daemon-reload

Dougal1957

Fixed now thanks (one of the guys in a discord I am in suggested how I could edit it with NANO Thanks Luke

bcrazycramer

Do you know why this isn't working?

pi@duet3:~$ sudo /opt/dsf/bin/DuetWebServer
crit: Microsoft.AspNetCore.Server.Kestrel[0]
Unable to start Kestrel.
System.IO.IOException: Failed to bind to address http://[::]:80: address already in use.
---> Microsoft.AspNetCore.Connections.AddressInUseException: Address already in use
---> System.Net.Sockets.SocketException (98): Address already in use
at System.Net.Sockets.Socket.UpdateStatusAfterSocketErrorAndThrowException(SocketError error, String callerName)
at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.Sockets.Socket.Bind(EndPoint localEP)
at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.SocketConnectionListener.Bind()
--- End of inner exception stack trace ---
at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.SocketConnectionListener.Bind()
at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.SocketTransportFactory.BindAsync(EndPoint endpoint, CancellationToken cancellationToken)
at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer.<>c__DisplayClass21_01.<<StartAsync>g__OnBind|0>d.MoveNext() --- End of stack trace from previous location where exception was thrown --- at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindEndpointAsync(ListenOptions endpoint, AddressBindContext context) --- End of inner exception stack trace --- at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindEndpointAsync(ListenOptions endpoint, AddressBindContext context) at Microsoft.AspNetCore.Server.Kestrel.Core.ListenOptions.BindAsync(AddressBindContext context) at Microsoft.AspNetCore.Server.Kestrel.Core.AnyIPListenOptions.BindAsync(AddressBindContext context) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.EndpointsStrategy.BindAsync(AddressBindContext context) at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindAsync(IServerAddressesFeature addresses, KestrelServerOptions serverOptions, ILogger logger, Func2 createBinding)
at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer.StartAsync[TContext](IHttpApplication1 application, CancellationToken cancellationToken) Unhandled exception. System.IO.IOException: Failed to bind to address http://[::]:80: address already in use. ---> Microsoft.AspNetCore.Connections.AddressInUseException: Address already in use ---> System.Net.Sockets.SocketException (98): Address already in use at System.Net.Sockets.Socket.UpdateStatusAfterSocketErrorAndThrowException(SocketError error, String callerName) at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress) at System.Net.Sockets.Socket.Bind(EndPoint localEP) at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.SocketConnectionListener.Bind() --- End of inner exception stack trace --- at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.SocketConnectionListener.Bind() at Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets.SocketTransportFactory.BindAsync(EndPoint endpoint, CancellationToken cancellationToken) at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer.<>c__DisplayClass21_01.<<StartAsync>g__OnBind|0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindEndpointAsync(ListenOptions endpoint, AddressBindContext context)
--- End of inner exception stack trace ---
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindEndpointAsync(ListenOptions endpoint, AddressBindContext context)
at Microsoft.AspNetCore.Server.Kestrel.Core.ListenOptions.BindAsync(AddressBindContext context)
at Microsoft.AspNetCore.Server.Kestrel.Core.AnyIPListenOptions.BindAsync(AddressBindContext context)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.EndpointsStrategy.BindAsync(AddressBindContext context)
at Microsoft.AspNetCore.Server.Kestrel.Core.Internal.AddressBinder.BindAsync(IServerAddressesFeature addresses, KestrelServerOptions serverOptions, ILogger logger, Func2 createBinding) at Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer.StartAsync[TContext](IHttpApplication1 application, CancellationToken cancellationToken)
at Microsoft.AspNetCore.Hosting.GenericWebHostService.StartAsync(CancellationToken cancellationToken)
at Microsoft.Extensions.Hosting.Internal.Host.StartAsync(CancellationToken cancellationToken)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.RunAsync(IHost host, CancellationToken token)
at Microsoft.Extensions.Hosting.HostingAbstractionsHostExtensions.Run(IHost host)
at DuetWebServer.Program.Main(String[] args) in /home/christian/Duet3D/DuetSoftwareFramework/src/DuetWebServer/Program.cs:line 24
Aborted
pi@duet3:~$

chrishamm

@bcrazycramer It looks like there is another web server running on the same port (80). Do you have Apache or another HTTP server installed on your system? If not, try rebooting the Pi and check if that makes a difference.

PS: DWS will usually run in the background as its own service, so there should be no need to start it manually. Follow my last reply describing the usage of journalctl to figure out why DCS/DWS isn't started.

bcrazycramer

I get the same after rebooting.

I'm not using the Raspberry Pi for anything else except the Duet 3. I do have VNC enabled and SSH.

chrishamm

@bcrazycramer Please see my earlier post where I mention journalctl.

[edit]Sorry, linking posts doesn't seem to work too well[/edit]

Dougal1957

@bcrazycramer I get the same as well not that I have a clue what it means!

bcrazycramer

bcrazycramer

@chrishamm said in 3.2b1 Duet 3 (DCS is not started):

@bcrazycramer Please see my earlier post.

Which part?

Dougal1957

@bcrazycramer it was to me asking me to run the journal cads to see what was happening!

bcrazycramer

chrishamm

@bcrazycramer That's looking good. You should be able to connect to your board over HTTP.

The GitHub releases and package feeds have been updated with the latest hotfixes as promised. If you're having problems, consider running another software update.

A Former User

@chrishamm said in 3.2b1 Duet 3 (DCS is not started):

I suspect there may be a permission issue going on because we changed from root to a dedicate dsf user in the latest pre-release.

Can you explain the thinking behind changing from root to a dsf user?

As to be honest if it was working before, this seems to be a prime example of changes being made for the sake of it for diminishing returns.

As my old journeyman used to say : if it's working fuc*ing leave it alone.

Phaedrux

@CaLviNx Running things as root is generally frowned upon for security sake.

A Former User

@Phaedrux that I understand but in this instance it should be fine as people "should" have their home network secured.

My printers all connected via my own wireless "intranet" that is not connected to the outside world, so no one can get into that small network, house innternet itself is run through a Secure DDWRT equipped router which is well locked down, and I'm not the most IT tech savvy but I'm I am happy to run my printers in "Root" mode.

So to find yet another thing changed for the sake of change just trips things/people up as this instance proven

Phaedrux

@CaLviNx said in 3.2b1 Duet 3 (DCS is not started):

"should" have their home network secured.

Defence in depth would urge you to not assume any favorable circumstances exist.

A Former User

@Phaedrux and to counter that why should people not be allowed to choose for themselves and a notification in the docs would suffice?

dc42

Given the huge number of hacking attempts made against everyone these days, we would rightly be castigated if we continued running DSF as root. This is even more important now that DSF supports plugins.