What is this meaning `Name query nb {random char}<00>` [closed] - networking

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Closed 7 years ago.
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The scene is under VMWare, and the os in vm is Ubuntu 12.
What I have to say is the network was actually suddenly cut off when I was coding. My two colleagues were all have the problem. It seems very odd. It just is a vm dev environment. Why three person will occur it in a not long time periods. I couldn't ping the IP in VM from my host, and vice versa.
At the first time, I think it is the problem of network adapter of VMware. But it didn't work after I removed the network adapter and re-added it.
But this time, I think ping it. But the network is very slow. I just ping a IP, not a domain.
So, when I used wireshark to see what is the problem.
As the picture show below. I think it is a virus. The random string before <00>.
Anyone can give me the solution or some hints? Thanks!!

Perhaps it's a virus called Chrome, from a company called "Google"; Chrome appears to make various weird name queries.

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iPV 6 changes frequently for sip signalling [closed]

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We have been using Linphone for our calling services and its working fine on wifi and almost every cellular network except the one with iPV6 infrastructure.
The problem we discovered with iPV6 environment is that our signalling ip changes very frequently and as a result our call drops after 30 seconds timeout.
Any guide regarding this matter will be helpful.
Thats happens often on 5G network.
You can do nothing here, it is not related to asterisk, it is related to how 5G providers handle NAT. The do not care.
Only thing you can do is use android/apple push mechanism to force your application to re-register with new IP.
You can do nothing if customer change GSM cells while in call. Except maybe issue re-invite, but that is really hard and I know no softphone which do that correctly.
Another option is to use tunnel with ping inside it/resetup(or setup ignore source IP for tunnel) and put your sip traffic inside tunnel. But that WILL eat battery a lot and customer will complain or uninstall your app.

"who" on CentOS does not show WinSCP clients [closed]

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Closed 4 years ago.
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I use CentOS 7 with Apache server. The problem who command does not show clients connected with WinSCP. Can't understand why.
The problem who command does not show clients connected with WinSCP. Can't understand why.
Apparently, then, you are operating from a false premise. The who command does not promise to name everyone interacting with the system in any way whatever. Roughly speaking, who tells you about users who have an associated terminal, whether physical or virtual. Connecting via an scp client does not establish a login session or allocate a terminal for who to report on.
Contrast users who connect via ssh clients: these do get a terminal assigned to them, and they do show up in the output of a suitably-timed who command.

Difference between a VPN that can access Netflix and one that can't? [closed]

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Closed 5 years ago.
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Obviously the difference is that one can and one cannot access Netflix. But how does Netflix ban VPNs while not catching VPNs designed specifically to access Netflix?
The main difference is the question of whether Netflix knows about them yet or not.
In time, the VPNs which can access Netflix today will likely end up being blocked by from accessing the service when Netflix's analysis of incoming connections reveals IP addresses which could belong to VPNs used to circumvent their restrictions.
It is possible that some operators of VPN services may make use of IP addresses which are changed periodically to make detection less likely and this is how they may go for an extended period of time without being blocked.

Accessing local servers across network routers [closed]

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Closed 9 years ago.
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I have recently added a dlink router to my existing network, and connected some computers with it. The existing network uses ip range 192.168.1.x and the new router uses 192.168.0.x. Internet services is accessible on both the networks, but a shared resource or a web server connected to one network is not accessible to the systems of other network.
I googled this issue but I am unable to resolve the issue, please help.
If you are just going to be using the router as a switch on an existing network, you need to turn off its router-y features.
Go onto the web interface of the device and turn of "NAT", that way they'll use the same address space as everything else on the network.
They'll be other features as well you may want to turn off but that's one causing your current issue.

Simultaneous VPN and internet access windows 7 [closed]

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Closed 4 years ago.
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I use Cisco secure mobility client to connect to my office VPN. After I connect to VPN all my requests go through the office gateway and my access to internet through my locally installed router (connected wirelessly) is blocked/not reachable. How do i rectify this?
I've searched on the web and stack overflow, and they suggest split tunneling which I think is not an option here as I cant change the Cisco settings. Is there any work around for this? I've tried adding router address to the IP table , but that isn't helping.
My OS is windows 7.
Please let me know if you need any other information.
Mike is right, this is off-topic but I can tell you that unless the Cisco VPN administrator allows split-tunneling then there's no work-around for this. The best solution I can tell you, is to make a VirtualBox VM with your OS of choice and use that VM to connect to the VPN, thereby leaving your host machine free to browse the internet locally.

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