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

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Public access issue for ESXi guest host

I have a ESXi server with two NICs. Recently, I configured reverse proxy based on Apache, and in order to test it, I started using both NICs for public and private connections. I created a public VM ...
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77 views

Can not access any site with Chrome but Chromium does access any site well at the same time

I'm in for trouble with Chrome on my Mac after I backed to my home. The problem is I can not access the site such https://www.google.com with error code "ERR_ACCESS_DENIED". Even It's not restricted ...
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23 views

Can't connect to socket server though flash client

I have a web app built in Flex which connects to a socket server on my server. However, some users are stating that they're unable to connect to the server. I was wondering, what ports (on the ...
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279 views

file transfer speed over wifi homesharing too slow

Recently I wanted to transfer some movie files (ranging from 1gb to 4.5gb) from one computer on the ground floor to another on the first floor. The wifi router Im using is this one most likely: my ...
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101 views

MacOS Mavericks: wget getting stuck with local ip but not with localhost

I am facing a weird problem on my Macbook (Mavericks). I'm serving some files over http. When I try to get the files using wget: it works perfectly using localhost or 127.0.0.1 it starts but get ...
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65 views

multiple ipv4 addresses with internet connection on single physical device

my isp gives me up to two ipv4 addresses. i have a raspberry pi with archlinux connected to the modem. first interface is eth0 and the ip address is obtained via dhcp. i created a virtual device with ...
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46 views

Issue with sending/receiving from Outlook 2013 on Windows7

I got Windows7 and Office 2013 with Outlook2013. My colleague and myself (there are just two of us in the office) are having troubles with both sending and receiving emails. ONLY using the Windows ...
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22 views

Caching big files for local network, with authentication on internet

I'm trying to do something which I'm sure it's been done before, so I would like some help finding the best tools for the job. I have a data download server on the web, right now a user has to login ...
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102 views

ssh to linux through ethernet bridge to windows

I have the following setup Wifi / \ / \ Fedora Desktop Windows 7 Desktop (10.0.1.16) (10.0.1.15) \ ...
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101 views

Port forwarding from router to machine in LAN not working

I have a domain, and am attempting to serve my website from a local machine. Port forwarding on my router does not seem to be working. Here is how I have it set up up, and what I've tried to narrow ...
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31 views

OpenVPN to bridged wifi

I have a OpenVPN vpn server running on my Linksys/Tomato router. I can connect to all machines on my home network just fine, except for the following. I have several machines in another part of the ...
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26 views

VIM + netrw: accessing a machine behind a gateway

I'd like to setup a vim session to edit some files on a machine behind an ssh gateway. Is this possible? To access the files via the command line, I have to do: mycomputer$ ssh gateway gateway$ ssh ...
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29 views

Blender.org is down just for me

I have a small problem. I am trying to access blender.org but I am unable to do so. This seems to be related to my home network. I tried different browsers on my own laptop, as well as another laptop ...
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47 views

Loopback Address on OS-X

Wikipedia has this to say about the loopback address Various IETF standards reserve the IPv4 address block 127/8 (from which 127.0.0.1 is most commonly used), the IPv6 address ::1, and the name ...
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62 views

CPE and base station configuration in OPNET modeller

i am trying to simulate a network of 5 laptops communicating to CPE which also communicates to the Base station. the base station connects to the router and finally to the eternet. from the internet a ...
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34 views

Is this router/provider that blocks or does not support GRE protocol?

I am currently living in dorm and I have troubles accessing company's VPN. I wanted to make sure that problem lies not on my side before I go to ITS and start complaining. When I use WiFi I have no ...
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50 views

How to tell Windows 8 to only connect to network drives on certain networks?

I have a home server with some files on that I connect to via my wireless LAN at home. The server is only available at that specific network, and not via internet. It seems that every time I open an ...
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51 views

Windows 8/XP printing problems

I have a friend that has 2 Windows XP machines, 1 Windows 8 machine, and 2 network printers on his network. The network is all cabled, no Wifi used. The problem he is having is that if the Win 8 ...
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497 views

Why can't I access MySQL server with port forward rule in router?

This is my setup (the relevant parts, anyway): I have port forwarding rules in place (in the Linksys) for all the relevant ports and I've restarted that router multiple times, each time hoping that ...
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32 views

Optimizing bandwidth usage in a network of internet peers with minimum activity requirement

Suppose we have a HTTP-based network comprising N identical nodes. Each node needs to receive a request (S bytes) from anyone else at least every T seconds for the network to appear alive to it. In ...
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147 views

Wireless networking issue: the adapter working fine in linux, but not in windows

My laptop is ACER aspire V5-573G and is currently has a strange wi-fi issue. The laptop has dual-boot Windows 8.1 (64-bit)/Linux mint 16 (xfce,64-bit). On the windows side, the wireless card is ...
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63 views

Change scutil HostName to ComputerName on osx

I have about 100 users with Mac Books on which I have admin access. I have set up a dnsmasq DNS-Server on a Linux box that has the Domain "schoolnet". Now I have the problem, that all Mac Books have a ...
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162 views

Emulate a USB camera with an IP camera for web conference

Our office uses Cisco's WebEx for business web conferences and I want a camera with Pan/Tilt/Zoom for use in our board room. Unfortunately WebEx only supports USB cameras (mainly those on the Windows ...
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131 views

Connecting a network wireless adapter to BackTrack 5 R3

I installed BackTrack 5 R3 x64 on a VMware Workstation 10 while running Windows 8 x64. I bought a Network Wireless adapter "TL-WN8200ND" and this adapter works as normal in my system. But when I ...
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330 views

Tunneling traffic through OpenVPN

Following the steps described here I've managed to configure both the VPN server and client(I can ping both ways). Their respective configuration files are: server: ;local a.b.c.d port 1194 ;proto ...
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67 views

How to block an incoming port to a router?

Recently there have been a lot of people cheating on Xbox Live using a modded Xbox and a networking service called Xbox Live Stealth which allows them to bypass the Microsoft servers so their Xbox's ...
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29 views

Access a shared Win 8 folder from server 2012 in Hyper-V?

a preface: I've never used Server 2012 (S2k12) so I'm a total noob with it. I'm running S2k12 in a Hyper-V VM (logged in as admin), and need to access a shared folder on my Win 8 host which has full ...
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56 views

BindIPEndPointDelegate to select VPN interface on Windows

I have multiple Windows-intergated L2TP VPN connections on my server. By default, all internet traffic should be routed through my local network adapter and not through the VPN. My application should ...
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20 views

Utility service that logs total network usage

I would like to know the total bandwidth our internet provider essentially provides to the many competing devices in our home. Is there a simple windows service that uses a wireshark like trick to log ...
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3k views

An error occurred while Internet Connection Sharing was being enabled

I want to share my lan internet connection over my hosted network. But it's being failed due to An error occurred while Internet Connection Sharing was being enabled... I found this post but all the ...
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43 views

Fedora networking not working correctly but only on one network

I have a very odd networking problem. When using Fedora, I have problem with network only when connected to one specific network (BTW it's ADSL) and no other OS has that problem (I have 2 PCs and both ...
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112 views

Microsoft PPTP VPN Server DNS Issues

When I connect to my VPN server, which is hosted on a Windows 7 computer, from my Android tablet, the server acts normally but the DNS seems broken since I can access 74.125.224.72 but not Google.com. ...
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47 views

Some devices kill my network

So I've got a Rostelecom branded Sagemcom F@ST 2804 router and some of my devices just kill my network. For example iPhone 5S does. As soon as iPhone connects to the WiFi shared by the router, the ...
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63 views

Set port for DNS on OS X

I'm using OS X 10.9.1 and I want my DNS lookups to happen on port 54 instead of 53. First I looked here but the file states: This file is not used by the host name and address resolution or the DNS ...
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85 views

“iptables -P OUTPUT DROP” blocks DDWRT's web interface

When I do iptables -P OUTPUT DROP it blocks DDWRT's web interface. That is I am not able to access http://192.168.1.1 via Firefox. I put this rules before changing the chain policy to drop: ...
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62 views

How to configure Open vSwitch bridge to make all ports trunked?

I am trying to configure open vSwitch on a XenServer install to trunk all ports with VLANs. How would I make it so that whenever a new VM is added the port that is connected to it is automatically ...
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67 views

ARP for a multihomed machine (Linux)

I try to configure two interfaces on my server to behave as independently as possible on the same medium. However I have some problems with ARP (maybe related to ARP flux). I hope somebody can ...
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46 views

Don't Answer Please: Windows 7 64 bit Cygwin Network Drive Mounting

I'm best described as a ferverish fumbler rather than some sort of expert. However, I have been around the block a few times. I've just realised that in my new place of employment, my Windows 7 64 ...
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56 views

Wifi Neighbor Triangulation

Is it possible to discover signal strength between two devices that are connected to the same network? Devices    A. Cell Phone WiFi    B. WiFi enabled device ...
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610 views

How to enable mDNS on Windows (7)

What do I need to get multi-cast DNS on Windows (7) including the Windows box announcing its name in the .local domain? I am not so much interested in the service discovery part. It would be nice ...
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86 views

Apple TV failing to Wake on Demand when Computer is Behind a Switch

If I have a router and a switch, is there anything I need to do to the switch to ensure a Wake on LAN signal (magic packet) can reach a device behind the switch? Details I can Home Share between a ...
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35 views

IPConfig lists very strange tunnel adapter

I was trying to troubleshoot a different computer on my network, and ran ipconfig on MY computer for reference. One of the adapters listed is - Tunnel adapter satapi.GHGKZ.com: Google has ...
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28 views

Why are my network connections great on Ubuntu but awful on Windows 7/8.1?

Several months ago, my girlfriend started having connectivity problems on her Windows 7 Dell laptop. Her connection to the network would drop entirely every ten/fifteen minutes or so, and she'd have ...
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74 views

Connection over the Ethernet cable - connection get frozen

I got a problem with my new laptop witn Windows 8.1. When I'm connected to the internet through the Ethernet cable my connection get lost after some time (sometimes minutes, sometimes hours). After ...
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57 views

Delete Hung TCP Sessions with SNMP

What I am trying to do, and failing horribly, is to close a TCP connection... I am trying to do this via SNMP and the functionality that is provided in the TCP MIB. First, I look at all the ...
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302 views

openvpn no access - No route to host

I am using a router (openwrt) as server. route -n (before VPN): Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.1.254 0.0.0.0 UG 0 ...
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53 views

Virtualbox - Route a VM through a secure proxy

I have Virtualbox 4.3.6 running on Windows 7 Pro. I have various Linux VMs, I'd like to know if there is any way I can configure virtualbox not to use the default internet access the laptop has (work ...
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23 views

2 NIC, 2 DNS & Access Point

Im running a computer with Windows Server 2012 R2 Datacenter at home. NIC number one is used for hosting a website. I plugged in another NIC and connected it to the network aswell. Then I plugged in ...
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92 views

Windows 7 / PuTTY drop IPv6 TCP connections on brief outages

This is an IPv6-version of the following question: Why Windows 7 / PuTTY drop TCP connections even on very brief outages? After moving from IPv4 to IPv6, I've noticed that my IPv6 connections would ...
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258 views

VS2013 Test agent and controller not communicating

I have a Windows Azure VM running VS2013 Load Test Controller and a second Azure VM running 2013 Load Test Agent. I have not been able to get the two communicating successfully. I added the hostname ...