I have the idea of installing a ReadOnlyDomainController on my current domain.
And then taking it offline along with a few computers in the domain.
The idea is that it would be able to work as a disconnected network for few weeks at a time.
But after pulling the plug to the writeable DC's, none of the computers can find the domain.
Shouldnt i be able to?
Related
I have set up a pixel streaming in UE5 in AWS(Amazon Web Services) it works perfectly on my laptop, mobile and my colleagues system (same WiFi).
When I send that public IP4 link to my client in another city it just appears blank, after clicking the triangle (play button) in Pixel Streaming.
Edit 1: when I change the location(IP) using VPN, it also not working on my laptop too.
EDIT 2:
I'm using UE5 pixelStreaming, It works on many devices/locations, but it didn't work on some locations. I contacted AWS the checked different locations and its working on their side.
surprisingly i didn't do anything it worked on all devices in all locations the next day.
On the next day this problem arise again it didn't work in my client's whole office.
after a few hours, it started to work on some of my client devices(mobile /web browser).
I checked the remote desktop I find out that webRTC data is not coming there.
Why WebRTC data not coming in some of the devices?
I think it might be because you didn't allow access from other networks on AWS, so it only allows those on your network to see it. While not this exact issue, something similar happened to me before.
I use Dragon dictation software including by using it over a remote access to my home computer. I also once had it set up on the network server computer at a client site which I could also access when logged in remotely. But now, I have a situation where my access to work info is over Amazon WorkSpaces. Does anyone know if Dragon Pro can be installed on and accessed through an Amazon WorkSpace desktop?
TIA!!
Your question was bugging me for a long time, finally I gave in and rented a WorkSpace and tried Dragon.
Recognition for me is totally fine as long as your local computer's standard audio input device is actually the one you want to use Dragon with. If your default input device is the built-in micro of your laptop, computer or screen, recognition will most likely be bad. I used a Sennheiser MB Pro 2 with a USB dongle on a Windows machine for testing, as well as a TravelMike with a USB MultiAdapter. Both work fine.
As for factors that influence recognition quality:
I know from other virtualization/remote desktop solutions that the codec that transfers your speech to the virtual/remote machine may work well for one microphone, and not for others. Try a different mike and see if that improves your recognition.
In order to rule out microphone issues, I suggest trying different internet connections (WiFi, Ethernet, tethering, different internet providers). Missing words from speech recognition over remote connections can indicate unstable or slow internet.
As far as I know, there is no way to patch a USB device through to the remote WorkSpaces machine. What you could try is install a VPN on the remote machine and use your smartphone as a remote microphone in Dragon. Your smartphone also needs the VPN. If you get that to work, recognition should be as good as on your local network, given that internet connection is fast and stable enough.
I know (guess) it's some sort of centralized peer-to-peer connection going on there. But then, how it's established? The apps themselves act as clients and servers. They connect to some central server, populate the user's node with data such as IPs MAC addresses and rest. But then what?
Do they establish a direct socket connection between the user computers? If yes, how they avoid the routers?
Do they transfer the data through the central server?
The reason why I ask is that I wanna build a Remote Desktop application that will be able to stream the screen view in real time to the connected client app(s). I know there a tons of them out there, but 99% are slow. I know it's possible to be close to realtime, OnLive does it. The 2 RDCs that work with speeds close to realtime are LogMeIn Pro (which I don't want to pay for, because I need only HD stream fromt the paid package) and Radmin (which is windows-only).
I'm ready to code it (in C/C++/Objective-C), but I just don't know how to design the thing.
I have a winsock IOCP server written in c++ using TCP IP connections. I have tested this server locally, using the loopback address with a client simulator. I have been able to get upwards of 60,000 clients no sweat. The issue I am having, is when I run the server at my house and the client simulator at a friends house. Everything works fine up until we hit around 3700 connections, after that every call to connect() fails from the client side with a return of 10060 (this is the winsock timed out error). Last night this number was 3700, but it has been around 300 before, and we also saw it near 1000. But whatever the number is, every time we try to simulate it, it will fail right around that number (within 10 or so).
Both computers are using Windows 7 Ultimate. We have also both modified the TCPIP registry setting MaxTcpConnections to around 16 million. We also changed the MaxUserPort setting from its 5000 default to 65k. No useful information is showing up in the event viewer. We also both watched our resource monitor, and we havent even gotten to 1% network utilization, the CPU is also close to 0% usage as well.
We just got off the phone with our ISP, and they are saying that they are not limiting us in any way but the guy was kinda unsure and ended up hanging up on us anyway after a 30 minute hold time...
We are trying everything to figure this issue out, but cannot come up with the solution. I would be very greatful if someone out there could give us a hand with this issue.
P.S. Both computers are on Verizon FIOS with the same verizon router. Another thing to note, the server is using WSAAccept and NOT AcceptEx. The client simulator is attempting to connect over many seconds though, so I am pretty sure the connects are not getting backlogged. We have tried to change the speed at which the client simulator connects, and no matter what speed it is set to it fails right around the same number each time.
UPDATE
We simulated 2 separate clients (on 2 separate machines) on network A. The server was running on network B. Each client was only able to connect half (about 1600) connections to the server. We were initially using a port below 1,000, this has been changed to above 50,000. The router log on both machines showed nothing. We are both using the Actiontec MI424WR verizon FIOS router. This leads me to believe the problem is not with the client code. The server throws no errors and has no unexpected behavior. Could this be an ISP/Router issue?
UPDATE
The solution has been found. The verizon router we were using (MI424WR revision C) is unable to handle any more than 3700 connections, we tested this with a separate set of networks. Thanks for the help guys!
Thanks
- Rick
I would have guessed that this was a MaxUserPort issue, but you say you've changed that. Did you reboot after changing it?
Run the test on the exact same computers on your local network (this will take the computers out of the equation).
The issue could be one of your routers not being up to the job?
I need to write a win32 c/c++ application which will be able to determine whether the PC it's running on is connected to one of 2 networks. The first network is the company LAN (which has no internet connection) and the second network is a standalone switch with a single PC connected to it (the PC that the program is running on).
I'm pretty new to network programming but so far I have tried testing to see if a network drive which is held on our LAN can be mapped. This works fine if the PC is connected to the LAN, the drive mapping succeeds so so LAN detection is successful. However, if the PC is connected to the switch, this results in a VERY long timeout which is not a suitable as it will delay the program so much as to make it unusable.
Does anyone have any alternative suggestions?
I'm using c/c++ in VS 6.0
[Update]
Whilst trying a few different ideas and looking at some of the suggestions below I thought I should update with some additional information as many (if not all) of the suggestions I don't think will work.
(1) The aforementioned LAN has no external connections at all, it is completely isolated so no resolving of external DNS or pinging websites is possible.
(2) Hostname, MAC address, IP, Default Gateway, Subnet etc etc (basically everything you see in ipconfig -all) are all manually configured (not dynamic from the router) so checking any of these settings will return the same whether connected to the LAN or the switch.
(3) Due to point (2), any attempts to communicate with the switch seem to be unsuccessful, in fact almost all networking commands (ping, arp etc) seem to fail - I think due to the machine trying to connect to the LAN when it isn't there :-(
One thing I have found which works is pinging the default gateway IP which times out when connected to the switch. This is sort of ok as I can reduce the timeout of ping so it doesn't just hang for ages but it feels like a bit of a hack and I would certainly appreciate any better solutions.
Thanks
As far as TCP/IP is concerned there is no such thing as a LAN on WAN. There are a set of non-internet routable addresses like 192.168.x.x and 10.x.x.x but these are sometimes used by ISP short of IP addresses.
You best bet is to use Asynchronous APIs when making TCP/IP connections. WIN32 defines a whole buch of OVERLAPPED APIs for this purpose. This will prevent your application from grinding to a halt while waiting for a remote connection.
Alternatively put the socket stuff into another thread and then only notify the UI when the operation is done.
I would first try to differentiate between the two using information available locally--that is, from your computer. Does the output of ipconfig /all differ depending on which network you're connected to? If so, exploit that difference if you can.
Is it possible to get the MAC address of the standalone switch? Of the switch that controls the company LAN? That would be a sure way to tell. Unless somebody cloned the MAC address.
If you try using the existence or non-existence of some network service to determine which network you're connected to, you can never be sure. For example, if you failed to map that network drive, all you know is that the network drive isn't available. You can't say for certain that you're not connected to the company LAN. Same is true if you use ping. Lack of response from a particular machine means only that the machine didn't respond.
Various things you can look at for differentiation:
DNS domain name (GetComputerNameEx)
MAC address of gateway (ping it, then GetIpNetTable)
Routing table(do you have a gateway and default route on the company LAN)
WNet discovered network resources (WNetOpenEnum, WNetEnumResource)
Ability to resolve external hostnames (try a 5-10 names like www.google.com, www.microsoft.com and so on, if one resolves you should have internet)
You'll have to decide how many indicators are "enough" to decide you're on one or the other LAN though if tests fail. Then keep retrying until you have a definite result.
http://msdn.microsoft.com/en-us/library/aa366071%28v=VS.85%29.aspx has a lot of network related functions that you can experiment with to create further indicators.