I am currently using 'connmanctl config' to set static and DHCP settings with a wired connection. I'm curious if anyone has been successful with applying settings with the wire unplugged?
I would typically use 'connmanctl services' for a list of services then perform a string.match(blah, "ethernet_%w+_cable") to use that wired service name. I have been able to find and apply that service name with the ethernet cable unplugged BUT now when using 'connmanctl config':
connmanctl config ethernet_f8dc7a04ea82_cable --ipv4 manual 192.168.91.108 255.255.255.0 192.168.91.1 --nameservers 8.8.8.8
I get this error:
Error ethernet_f8dc7a04ea82_cable: Method "SetProperty" with signature "sv" on interface "net.connman.Service" doesn't exist
As you can see I have the service applied to the command and this is the same service name as when the cable is plugged in. This feature would be nice for equipment that needs to be pre-programmed before reaching the customer. I have also researched this error but can't find it being an issue with others the same as it is with my situation. Have also read many blogs, articles, etc...on trying to achieve this with nothing that jumps out at me.
...Any ideas ?
I had to perform this action via back-end with the code that I am using to configure. Just an example...settings are applied to /var/lib/connman/ethernet_?????cable/settings. I created the adapter name with the MAC address because it does not exist until the network is detected, created the directory /ethernet?????_cable then created an empty settings file on the fly. When programming and saving the settings via the equipment I am using I just insert the settings manually. When a network cable is plugged in and detected the settings you have applied work wonderfully.
Related
I'm running multiple SUMO simulations in parallel using TraCI.
Every so often one will fail with the message
Error: tcpip::Socket::accept() Unable to create listening socket: Address already in use
Quitting (on error).
I haven't found anyway to set the address to use on the configuration list at http://sumo.dlr.de/wiki/SUMO
I figure if I can set each instances address manually I should be able to avoid this.
The answer is right on the page you mention. The option --remote-port specifies the port number, so something like
sumo --remote-port 54323 -c my.sumocfg
should do the trick. Of course you need to give the same port when connecting from your traci client.
So right now I am trying to see the information that comes out of the following command in to command prompt (cmd):
netsh advfirewall firewall show rule name="TestFirewallUpdateSettings" profile=any
The output I get is:
Rule Name: TestFirewallUpdateSettings
----------------------------------------------------------------------
Enabled: Yes Direction:
In Profiles: Domain,Private,Public
Grouping: LocalIP: Any RemoteIP:
Any Protocol: Any Edge traversal:
No Action: Allow
What I want is to just read the In Profiles section using vb.net and wondering if there is a API that will do what I am asking for?
Yes, there is. You could go and create your own interop assembly in order to access the objects - INetFwPolicy2 in particular - in the system's COM based FirewallApi.dll. Check this SO thread for details. I did this in the past (Windows 7) and it worked like a charm.
Also, there is a WMI name space - ROOT\SecurityCenter2 - which is supposed to provide info about firewall amongst other things. However it wasn't well documented and I failed to enumerate it through C# although I can see it through various WMI browser tools.
You can also check the new Microsoft.TeamFoundation.Build.Common.INetFwPolicy2. It seems to do the same job as the manually created interop assembly.
I am trying hard to follow the example of SimpleTunnel given by Apple.
I try to track how they make the customized call.
However I cannot link the relationship between the connect button action with starting a new tunnel.
I tried to track it with PacketTunnelProvider but without success.
I know they are override classes. I cannot find the point where the whole VPN connection starts.
My goal is to create a SSL VPN tunnel.
After asking Apple and a few trial and error, I can finally trigger the extension part.
Prerequisite: (Network Extension permission)
Add a new target -> Packet Tunnel Provider
Trigger the extension by
NEVPNConnection *conn = [manager connection];
NSError *connError;
[conn startVPNTunnelWithOptions:settingsDict andReturnError:&connError];
Debug with the following steps
(1) Build & run the app
(2) Stop the app
(3) Debug > attach to process by PID or name > Enter "PacketTunnel"
(4) Start the app from your iPhone screen and you can debug for the extension
Hope the small steps I experienced can help the others to start.
However, there are more upcoming questions and I need to check!
The sample application and Packet Tunnel provider runs as a separate process. sample application is called as container app and the packet tunnel provider runs as app extension. These two components uses IPC for communication.
In sample application whenever connect toggle button is enabled startVPNTunnel() API will be called and the OS starts the packet tunnel provider which in turn calls your overrided method startTunnelWithOptions(). So this is where you start your connection to the VPN server.
To answer your question link the connect action to a method that invokes startVPNTunnel() which in turn triggers packet tunnel provider. You cannot directly invoke start packet tunnel provider without the container application.
Same gets applied to stop your VPN tunnel
Hope this answer helps you
if you are asking about the connect / enable buttons inside the SimpleTunnel app, then startVPNTunnel() is the call used in startStopToggled() method of StatusViewController.swift file
if you are asking about how the extension handles vpn connection start (after configuration is done), then OS network system calls startTunnelWithOptions() in PacketTunnelProvider.swift depending on how the tunnel is configured. for eg: of on-demand is enabled for this tunnel, OS will try to setup/start the tunnel whenever there is network activity. if not, OS will try to start tunnel, when you go to Settings|VPN and try to switch ON the config. This is similar to the iOS8 personal vpn connection stuff.
Hi I've been trying to try out the Fiware service.
I've setup an POI Instance in the Waterford Region.
I've followed the instructions and assigned a floating IP.
On the Instance page I have no IP address and an Status Error.
Under the security page -> Floating IP tab there is an IP address assigned. The Instance is blank. When I try and associate an IP to the instance i get a 400 error:
undefined. Cause: 400 Error
{"badRequest": {"message": "No nw_info cache associated with instance", "code": 400}}
Has anyone had the same problem?
Have you used the 'Allocate IP to project' menu under the Security Tab first ?
If you have a floating IP available it should be connected to the instance you've created using the Associate IP -Action under the Security/Floating IP's. Remember to also allocate and connect the keys and open relevant ports as described here: http://catalogue.fiware.org/enablers/poi-data-provider/creating-instances
There has been some resource (floating IPs) limitations in the FILAB cloud servers so this may be also the reason if you have followed all the above.
Currently, there seems to be some problems with the POI GE image in the Fiware Cloud. Currently a working choice is to start an Ubuntu 14.04 image and install the POI GE according to http://forge.fiware.org/plugins/mediawiki/wiki/fiware/index.php/POI_Data_Provider_-_Installation_and_Administration_Guide .
I'm trying to call Apache ActiveMQ NMS Version 1.6.0 from my code ('IntPub') that must run in a sandbox in a .NET 4.0 environment for security reasons. The program that creates the sandbox makes my code 'partially trusted' and therefore 'security-transparent' which seems to mean that it can't create a ConnectionFactory (see error log below) because NMS seems to be 'security-critical'. Here's the code that's causing this error:
connecturi = new Uri("tcp://my.server.com:61616");
var connectionFactory = new ConnectionFactory(connecturi);
I also tried this instead with similar results:
connecturi = new Uri("activemq:tcp://my.server.com:61616");
var connectionFactory = NMSConnectionFactory.CreateConnectionFactory(connecturi);
Since I can't change the security level of my assembly (the sandbox prevents it) is there a way to make NMS run as 'safe-critical' so it can be called by 'security-transparent' code? Would I have to recompile it to do so, or does NMS do some operation that would never be considered 'safe-critical?
I appreciate any help or suggestions...
Assembly 'IntPub, Version=1.0.0.0, Culture=neutral, PublicKeyToken=6fa620743b8dc60a' is partially trusted, which causes the CLR to make it entirely security transparent regardless of any transparency annotations in the assembly itself. In order to access security critical code, this assembly must be fully trusted.Detail:
<OrganizationServiceFault xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.microsoft.com/xrm/2011/Contracts">
<ErrorCode>-2147220956</ErrorCode>
<ErrorDetails xmlns:d2p1="http://schemas.datacontract.org/2004/07/System.Collections.Generic" />
<Message>Unexpected exception from plug-in (Execute): Test.Client: System.MethodAccessException: Attempt by security transparent method 'Test.Client.Execute(System.IServiceProvider)' to access security critical method 'Apache.NMS.ActiveMQ.ConnectionFactory..ctor(System.Uri)' failed.
From the error message attributes, it looks like you're running a Dynamics CRM 2011 plugin in sandbox mode, which has some very specific rules about what you can and can't do. In particular, you're only allowed to make network connections via HTTP and HTTPS, so attempting raw TCP sockets will definitely fail.
Take a look at this MSDN page on Plug-in Isolation, Trusts, and Statistics. It looks like there may be a way to relax the network restrictions by modifying a system registry entry to include tcp, etc, in the regex value. Below is an excerpt from the page. Note: I have not done this myself, so can't say for sure it'll work.
Sandboxed plug-ins and custom workflow activities can access the
network through the HTTP and HTTPS protocols. This capability provides
support for accessing popular web resources like social sites, news
feeds, web services, and more. The following web access restrictions
apply to this sandbox capability.
Only the HTTP and HTTPS protocols are allowed.
Access to localhost (loopback) is not permitted.
IP addresses cannot be used. You must use a named web address that requires DNS name resolution.
Anonymous authentication is supported and recommended. There is no provision for prompting the logged on user for credentials or saving those credentials.
These default web access restrictions are defined in a registry key on
the server that is running the Microsoft.Crm.Sandbox.HostService.exe
process. The value of the registry key can be changed by the System
Administrator according to business and security needs. The registry
key path on the server is:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSCRM\SandboxWorkerOutboundUriPattern
The key value is a regular expression string that defines the web access restrictions.
The default key value is:
"^http[s]?://(?!((localhost[:/])|([.])|([0-9]+[:/])|(0x[0-9a-f]+[:/])|(((([0-9]+)|(0x[0-9A-F]+)).){3}(([0-9]+)|(0x[0-9A-F]+))[:/]))).+";*
By changing this registry key value, you can change the web access for sandboxed plug-ins.