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2 answers

Cannot connect to network using a WiFi USB Adapter

This question has been solved. Thank you for all your help. The solution was just to downgrade. Didn't even need to install the OS for it to work, it worked inside the installer. My mother's old ...

0 answers

subdomain Dyn DNS timeout, got ping but get browser timeout

For my Dyn DNS at dyn.com, I have one hostname "mra.dnsalias.net" that I created a while back, but did not have the wildcard checkbox specified, which would map "*.mra.dnsalias.net". The initial ...

1 answer

Is it possible to process millions of datagrams per second with Windows, using a vendor agnostic API?

I am investigating if I can implement an HPC app in Windows that receives small UDP multicast datagrams (mostly 100-400 Bytes) at a high rate, using a dozen or up to maybe 200 multicast groups (i.e. ...

4 answers

What caused socket connections to be slow after Full GC?

We have a client server app, 1 server, about 10 clients. They communicate via tcp sockets using custom queries. The system had been running smooth for many months, but at some point, after the daily ...

0 answers

Blocking or forwarding packets as access point

I set up my Pi 2 as a wifi access point following this tutorial. I'd like to implement a rudimentary QoS, according to the DSCP field in every packet's header. That means, blocking packets using low ...

4 answers

How does Windows Remote Desktop Connection Work?

How does Windows Remote Desktop connection work? An IP address is used to connect to the computer but how can that IP be accessed from anywhere? If, for example, the IP address is 128.10.10.10, there ...

1 answer

Internet for Fake AP clients

I have been trying to set up a fake AP for testing purposes. I was successfully able to get airbase-ng working and set up a DHCP server for the clients to obtain IP address, which all works. My laptop ...

1 answer

cannot ping linux network namespace within the same subnet

ATTENTION: There is an edit at the end of this post. Here is a quick summary of the issue. I cannot communicate with a linux network namespace within the same subnet. I am running Ubuntu 14.04.1 LTS ...

1 answer

Using Local (private) DNS server on Lollipop

I have a website hosted on an IIS server on my network. The DNS for this website on only valid from within the network. The DNS cannot be resolved outside of this local network. I am using Wi-fi to ...

3 answers

Programming P2P application

I am writing a custom p2p program that runs on port 4900. In some cases when the person is behind a router, this port is not accessible from the internet. Is there an automatic way of enabling the ...

3 answers | 1 hour ago by Jayesh on Stack Overflow stackoverflow.com
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How My elite proxy is detected with browser but not with proxifier

I am wonder that how elite proxy works because I use several browser for elite proxies that show my real ip address. However I use a software like proxifier with the same proxy and doesn't show my ...

2 answers

can't anybody copy their ssh public key onto my server?

I am setting up my first ever home server and want to make it ssh-able from the internet so i can access it anywhere. I am following this guide and i understand it so far up until where it says ...

2 answers | 1 hour ago by user2237160 on Super User superuser.com
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iptables does not block IPs

I noticed that there were lots of requests to xmlrpc.php file of a Wordpress blog from a few IP addresses. I want to drop all the packets coming from these IPs. However, my iptables configuration is ...

1 answer

Receive UDP Packets on Google Compute Engine

my task is to receive UDP packets on an Google Compute Engine. Given is the port, which is 300 and I already have a simple Java program which can handle these UDP packets. My problem now. Get the UDP ...

0 answers

Tomato: routing WAN traffic to local port

Setup My Tomato router is configured with one of the lan ports (LAN4) in the same Vlan as the WAN port. The server has its own WAN IP assigned by my ISP (11.11.11.22 in this example). All other LAN ...

1 answer

vSphere ESXi 5.5 Windows Guest Network card not active after reboot

Problem: Windows 2008 R2 or Windows 2012 servers have no network access after a reboot Not all VMs affected, but multiple VMs and mulitiple hosts. Windows Network configuration shows the correct ...

1 answer

NetDMA (and Direct Cache Access?) have been removed from Windows 8 / Server 2012. Why?

The MSDN page on Direct Cache Access (DCA), which is part of NetDMA, states The NetDMA interface is not supported in Windows 8 and later. So I guess both NetDMA and DCA are gone. As both seemed ...

0 answers

Can't access internet in KVM virtual machine running RHEL

I have the VM running on 14.04. When I checked for network connections on 14.04 it's available. But, the network connections are unavailable for RHEL6.5 running on my VM. I executed iwconfig to view ...

0 answers

VMWare Workstation on Windows7, Firewall Issues

I have a Ubuntu image running under VMWare Workstation 11.1 on a Windows 7 pro machine. This VM image is there in part to serve some files over TFTP to a number of hosts on a network. The tftp server ...

0 answers

wicd-curses Raspberry pi 2

I have just recently purchased a raspberry pi 2 the GUI interface is very different from my other raspberry pi b+ i have successfully connected my other raspberry pi to the internet using the ...

0 answers

Ad-hoc Network and wireless router as a client

For specific reason, our company needs to design a network with this situation: First I introduce the elements of the network: Devices that each one is not computer necessarily but has LAN network ...

2 answers

Virtualbox suddenly doesn't connect to networks

I've had Lucid Lynx (I think that's ubuntu 10.4LTS) running on VirtualBox V4.2. for about 6 moths already running on Win7 host OS. I've never had any issues with internet connectivity so far, but ...

1 answer

Trouble Connecting with Cisco VPN client reason 412

I'm using Windows 8.1 trying to connect to an Office using Cisco VPN. I try to connect and after a few seconds I get this: The Secure VPN connection terminated locally by the client reason 412: ...

1 answers | 3 hours ago by Snowburnt on Server Fault serverfault.com
2 answers

Command/scripts to check the Reverse DNS Lookup time

I am working on a project in which one master communicates with numbers of slaves. For that it has to make connection with hosts in network. But sometimes it hangs. I think that the reason behind is ...

1 answer

Two VPN connections on Windows 7

I have three laptops running Windows 7. I'd like to set one up as a server and have the other two connect through VPN, so they can access the server anywhere. The problem is Windows 7 only accepts one ...

1 answers | 3 hours ago by Tayles on Super User superuser.com
2 answers

What problems result from servers not time-sync'd?

What problems might arise within a domain when the member servers are not properly time-sync'd? I'm aware that log entries are incorrect making troubleshooting more difficult in time-sensitive ...

1 answer

FilesySystemWatcher over network

I'm using the following code to watch a specific text file for changes: <PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _ Private Sub Run() Dim args() As String = ...

1 answer

Using a dynamic 2D array or a hashmap in pseudocode?

I have a networking algorithm, I should have a structure to store the location of each node at each clock tick. The number of nodes is not a priory known since a new node can join the network at any ...

2 answers

Cellular Modem Data Usage

I'm using a Raspberry Pi to gather temperature data that I then send over a cellular modem to a server. Since I'm on a cellular network, conservative usage of data is very important. I've noticed that ...

0 answers

Cannot connect to wifi using wicd-curses

I have just recently purchased a raspberry pi 2 the GUI interface is very different from my other raspberry pi b+ i have successfully connected my other raspberry pi to the internet using the ...

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