Networking is the art of connecting two or more devices together so that they can communicate with each other.

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Block a Subdomain in Windows Firewall

Gamespy is ceasing its Master Server support for many games at the end of May, including Crysis 1, Wars, and 2. I have worked with Crysis 1 and Crysis Wars for a very long time, and now the entire ...
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1answer
1k views

Trying to share folder in CentOs after installing guest Addtitions

I have VirtualBox 4.3.10 running a Minimal CentOS 6.5 using NAT adapter in my Win 7 . I have installed Guest Additions and I am trying to share Drive E: as you can see in this picture. Next I ...
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1k views

Trouble with static IP address in direct ethernet connection w/ raspberry pi

after hours of trying various things I'm officially stumped. I can communicate with my raspberry pi via direct ethernet connection (without router or switch) from my windows box but not my linux box! ...
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2answers
91 views

Can I hook up my own router to use the ISP'router?

My ISP supplied a router, which has very basic functionality. I did not get any username/password with it, so I assume that I can only use that particular router to access the internet. So currently ...
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265 views

How to check via bash if your connection is wireless N/G/… on Linux?

iwlist scan shows me the available wireless connections. I can see Frequency:2.412 GHz for the channel I'm connected to. This article shows that a frequency of 2.412 GHz means that you are using ...
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109 views

Access Internal Network IP through another computer

So I have ssh access to my desktop computer at work, I use Endpoint security VPN on my mac to connect to the desktop computer. Which works great, I can access most internal IPs through this VPN. ...
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1answer
2k views

How to bring Internet to a DD-WRT router from another router?

I have a new Internet connection that came with a preconfigured modem-router. That works really well but it has only 2 ethernet port and no wireless. So I would like to connect my other router running ...
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214 views

Unknown Wireless USB Adapter Drivers Needed

I have found an old USB wireless adapter lying around the house that looks quite old. It would be very useful if I could get this working, however, I can't get any details on the model whatsoever to ...
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3answers
15k views

In windows 8, my proxy server settings get enabled automatically, how do I turn this off?

I have a new laptop running windows 8, the proxy settings get enabled randomly and I can't use Internet explorer at that point. I have to manually turn off the proxy each time. I've gone through ...
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1answer
251 views

what ports to open up for GitHub to install and work?

I want to use GitHub on a server where user accounts are not supposed to be able to go online otherwise. The GitHub Windows app does not even install without users' downloading it themselves (see my ...
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1answer
89 views

Bidirectional two networks link

I have a two networks that I need to link in two directions. network A 10.11.0.0/24 - and its gateway 10.11.0.1 network B 10.0.0.0/24 network B has a VPN server (10.0.0.38) that is doing a ...
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171 views

OpenVPN server does not provide access to internet

I am able to connect to my newly installed OpenVPN server (Debian 6.0 VPS using OpenVZ). When connected with the windows client, I am not able to access the internet. net.ipv4.ip_forward and iptables ...
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4answers
658 views

Cannot SSH to a second computer inside my network

I have two Linux servers running right now. The first one works just fine when I try to connect from PuTTY. Port 22 is forwarded for my working SSH server. Port 911 is forwarded for my not working ...
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1answer
92 views

Is there a command that allows me to set a prefered IP Address for an adapter? [duplicate]

I've got some customers who should use a specific IP in their network adapter, but manually setting it is a pain sometimes. So I would like to know if there's a shell command / batch that allows me to ...
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1answer
1k views

Application / Device setup for remote network connections

My question is related to what I asked about here: Why is my connection refused when port-forwarding? So I have a device hooked up to my router and I would like to be able to connect to this device ...
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1answer
592 views

How to configure putty to ssh to multiple vm using same host

I am running two Hortonworks Sandbox 1.3 guest VMs (both running Centos 6) on a Windows 7 host. I am using Oracle VirtualBox 4.3.2 with host-only adapter added to each of the guest VMs in addition to ...
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4answers
472 views

Increase wifi signal in some part of the house

In the living room the internet WIFI connection is very low and quite difficult to get sometimes. I was thinking about buying something to solve this problem. A friend of mine told me about buying a ...
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2answers
964 views

Unable to share internet by using HOSTEDNETWORK after installing AVAST recently

I was able to share my laptop's internet with my smartphone by using this command "netsh wlan start hostednetwork". But when I installed Avast in my Windows 8 OS, I am able to start the hostednetwork ...
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4k views

localhost as hostname confusion

I have a basic understanding about hostname and FQDN. Now I am confused, do I really have to specify a name for my hostname? So for example: Hostname: somename Domain: mydomain.com FQDN: ...
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2answers
2k views

Identifying Windows service generating network traffic

Windows services run within host processes. Observing the traffic using Windows 8's Resource Monitor, I see traffic generated by svchost.exe (netsvcs). It appears to be directed towards an IP address ...
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1answer
58 views

unable to start apache after changes to rc.conf and resov.conf

I had a working configuration this morning with the following simple /etc/rc.conf ifconfig_rl0="DHCP" ifconfig_xl="inet 192.168.1.11 netmask 255.255.255." defaultrouter="192.168.1.1" I added the ...
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94 views

Limited connectivity issues in network, need help sorting out the root cause

I have an issue with our house network that I can't figure out how to solve. I'll try to detail the symptoms as best I can, but please feel free to ask me for clarifications and I'll try to find any ...
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1answer
14k views

Routing loop: TTL expired in transit

I 'm trying to ping from my host PC (Windows 7) to Ubuntu 13.04 (VirtualBox). However, I get the error: Pinging 10.0.2.15 with 32 bytes of data: Reply from 78.87.2.210: TTL expired in transit. Reply ...
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1answer
7k views

TP-Link router sometimes fails to negotiate proper IP address

I'm trying to fix the WiFi connection of a family member. They get their internet from a cable modem. The modem is connected to a device that looks like a small Ethernet switch. This switch is ...
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2answers
2k views

How to access local mysql server from the internet

I configured a router R1 to work as a repeater, I connected an internet router R2 from an ISP to it (R1). The internet router R2 was assigned a static IP (41.58.163.84) by the ISP. I run an intranet ...
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2answers
1k views

Local DNS server is required to use names instead of full IP?

My computers have local IP addresses such as 192.168.0.X. And many of the computers have names such as "MyPC" or "YourPC" etc. It seems on Windows, in most cases, just using "MyPC" instead of the ...
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2answers
967 views

Two routers on network

I just had an incident where a router died and I went to replace it and entered what I thought were the same settings as the original, but I just can't seem to get this to work. Let me start by ...
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1answer
350 views

alternative to bcmwl-kernel-source package

I am looking for a good and stable alternative to the bcmwl-kernel-source package in linux. I've been using a very unreliable and basically crappy ndiswrapper setup, and it's not working for me ...
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1answer
396 views

How to set up LPD/LPR printing system for sharing a postscript printer on Linux?

I am new in Embedded Systems, and I want to add a usb postscript printing support such that it can serve request from any computer in the Network(Printer sharing). I went through various printing ...
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1answer
394 views

Vista Windows Firewall - how to block all ports apart from 1 on a particular subnet?

This is fairly easy in Win7 because that version of Windows Firewall allows you to block a port range e.g. 1-79,81-65535, leaving only a single port open. However Vista (at least by default) doesn't ...
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2answers
1k views

What I got is Modem-Router combo.How may I use the router functionality alone in this device?

I bought a Belkin N300 Modem Router combo.It has 1 phone line jack and 4 LAN jack.I already had another modem from my ISP. I used to connect the LAN cable coming out of that modem to my machine ...
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213 views

If there are 2 NICs on the same machine, can a TCP client on one NIC connect to a TCP server on the other NIC?

I use TUN/TAP to create a tun NIC tun0 with IP 10.10.10.2, and I have a real NIC eth0 with IP 202.112.34.49 Then I run a TCP client which binds its socket to 202.112.34.49 and a TCP server binding ...
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1answer
326 views

DD-WRT, virtual hostname forwarding to other names/IP's using round robin

I'm using DD-WRT v24/K2.6 on Netgear WNDR3400. On my home network I have many machines running (I do lots of distributed programming). I want to create a virtual hostname, say publisher, such that any ...
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1answer
1k views

Computer not connecting to wireless getting 169.254.x.x address

I have a computer trying to connect wirelessly to my network. All the other computers behind this router have a 192.168.1.x address, this computer is getting a 169.254.x.x address. I know that this is ...
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2answers
56 views

for a pair of hosts on Internet, are the routes the same in two directions?

for two hosts on Internet when a host send a packet to another host there is a route between them is the route the same on two directions? for example, two hosts A and B 1) the route from A to B 2) ...
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334 views

Sharing internet connection via Bluetooth

I am trying to share my laptops (running windows 8) internet connection with my desktop (running windows 7). I have connected two Bluetooth devices correctly but it detects Undefined Network below it ...
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1answer
9k views

How to change the dhcp range alloted through ICS in Windows 7 to 192.168.1.x range?

I have set up Internet Connection Sharing in my Windows 7 laptop. Currently the IP range alloted for ICS clients from DHCP is in the range of 192.168.137.x. I am not able to find a way to change the ...
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1answer
409 views

How do I set up an OS level proxy when a specific application does not support it?

I'm running a certain desktop app (actually Youwave Android) which doesn't have any built-in proxy configuration settings. I need to get all traffic just from this app directed through a proxy.
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2answers
1k views

Windows 7 Sleep With Network Availability?

Is it possible to adjust sleep mode so that I can continue to share files while Windows 7 is set to sleep? If so, what settings should I use?
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1answer
861 views

Ping Result:General Failure When disconnect from vpn

In Windows 8 When i connecte to the vpn and then disconnect from it, i get general failure. PING: transmit failed. General failure. the routing table are: Network Destination Netmask ...
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1answer
230 views

Allow access from internal files, but denying access externally

I am trying to figure out how to deny access of a font on a website from external access. This means the user should be denied if they point their browser to the url While still allowing the css ...
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1answer
23 views

Finding exact information retrieved by Installers

While installing some software via installers or web installers, I want to find out all the data that the app retrieves from my machine (eg machine name, OS type, IP address, MAC address etc) and ...
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519 views

how to troubleshoot asymmetric speed PPTP VPN speed? (downlink to client is slow, the server bandwidth up, and there is no encryption overhead)

I hope I have a general question motivated by my specific problem: I have acceptable upload speeds and unacceptable download speeds on my VPN while I think both endpoints have quite some bandwidth in ...
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0answers
24 views

What exactly is “the cloud” [duplicate]

Possible Duplicate: What is cloud computing? What exactly is "the cloud"? According to Wikipedia, the source of all knowledge, cloud computing is the use of computing resources ...
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2answers
547 views

Office Internet monitoring usage

Please advice. How can I determine which computer in our office has the most bandwidth. This is the scenario. We have 25 PC and there are a times our internet is slow. As I checked during a single PC ...
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2answers
863 views

What can cause Internet connection to randomly fail?

From time to time, web pages don't open or open slowly, downloading big files stop after a few KB or MB (no errors are thrown, just no data is received). Sometimes it works, sometimes it doesn't ...
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1answer
152 views

I always get internet connected next day when I connect to a new machine, wired though?

Every time I want to connect to a new machine I am not allowed to connect(wire) to the internet. Others connected through the same router are getting the internet uninterrupted. Some of the computers ...
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1answer
275 views

Use wired Ethernet for network drives but Wifi for Internet

Is there any way to specify what my network connections do? We finally got a 20 mb/s connection at my office, but it's currently only on our WiFi. I need to be connected via Ethernet, though, to ...
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1answer
930 views

Brother 8880DN Scanning

We have a client with a Brother MFC 8880DN connected up to their server via USB and shared out, which is printing fine and all is well. It's really a short question more so than anything - in order ...
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1answer
476 views

using a static ip address when accessing internet through wireless (wifi)

I have got a static ip address for lease from my ISP. So the requests for that ip address is forwarded to the modem in my house. from here it is connected to other devices through wifi. On one o the ...