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

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Unusual connection issues

As I said in the title I'm experiencing unusual problems with my internet connection. The network freezes each several seconds for about 1 second. I attach a picture that precisely shows what I mean. ...
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Website won't resolve via my IP but will via proxy

This is probably a really basic fix, but I've tried various posted solutions to no avail. Essentially, my domain loads a cached version of the website if I view it from my own IP, but if I go via a ...
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Why does a radio stream not appear on a packet monitoring tool?

I am currently trying to find the URL to the audio stream for a webradio that only provides a flash player, that I would like to use with MusicBee's radio reader. After using Wireshark to monitor my ...
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8 views

My VPN trips out my internet connection

When I try to connect my VPN my internet connection seems to trip. I have pinged google.com and my router and everything is fine. I have it connected to Linux Ubuntu also and it is working fine in ...
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3 views

Networking not working on Packer created Ubuntu VirtualBox VM

I'm trying to build a VirtualBox Ubuntu VM using Packer, without using the Vagrant post-processor unlike most of the examples out there. My image was successfully created and I configured it to use ...
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14 views

missing remote desktop on win 7 ultimate

Have a computer running Win7 Ultimate. Having issues using remote desktop as in doesn't seem to exist. Doesn't have the shortcut on the start menu, nor can I find mstsc.exe doing a search on the C: ...
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5 views

CoreOS cluster won't update hosts and is out of sync

I have recently been testing a CoreOS cluster out, running over DHCP, which worked fine and even the cluster migration of fleet units were working properly. Then I decided to set static IP addresses, ...
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3 views

How do you tell the linux network traffic control system to apply fair queueing across a set of traffic classes?

I've been skimming the Traffic Control HOWTO and it appears to have SFQ for dividing bandwidth evenly between flows. But my boss is interested in dividing bandwidth fairly (and/or weighted) among ...
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10 views

How to set up a VPN server on Windows 2012 R2 that can be connected from the internet?

I have a Windows 2012 R2 server in my office. It has internet access. Is there a way that can let me to use that server as a proxy server when I'm not in the office. Ideally I hope it can be used by ...
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6 views

port forward from host to libvirt guest virtual machine that is bridged to the host nic

I am having no luck getting access from the outside to a http server running on my network in a Debian virtual machine that was created through libvirt. This what my network looks like: PC1: running ...
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9 views

Cannot setup wireless client between a Digisol & a Dlink Router

I have two routers one is a Dlink DSL 2730 U & the other is a Digisol DG HR 3400 Router/Repeater -l. The Dlink Router is an Access Point with a public IP address assigned to it. On the Digisol ...
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1answer
11 views

Switch connected to router. How to deal with port forwarding?

I have a dsl router which a 8 port switch is connected to it. If I connect computers to the switch how would I manage port forwarding in this setup? is it possible? would it be recommended in a ...
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1answer
30 views

Can I “simulate” a virtual network PC

I have to test a program on my PC that retrieve a path from a DB and then work on files on this path. The problem is that this path refers to \\STORAGE-AREA\etc and in my network there isn't any ...
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38 views

Is a longer WiFi antenna better?

Is a longer wifi antenna better? Why do WiFi antennas have different length? This concerns only the usual (rubber duck type) antennas used in stock routers and adapters. There are other types of ...
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1answer
4 views

Mac as a wifi hotspot using 802.1x auth

I am trying to use my Mac as a wifi hotspot. Currently, Im running Yosemite on it. The internet connection is through en0 and the local connection is through en1 network interface. Now, I want to ...
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9 views

Does wpa_gui need wpa_supplicant to initialize first to work properly?

I am using Linux on a custom board based on the Freescale MCIMX6Q-SDB (armv71). I installed wpa_gui, a GUI for wpa_supplicant, on the custom board. I'd like to know if I have to initialize ...
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5 views

XenServer Private/External Network in VMWare Workstation

I am learning XenServer and have created a little project for myself that I am having trouble completing. I have a VM AD server in bridged. This has a static ip that is part of my physical network. ...
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8 views

resolv.conf keeps getting overwritten when dnsmasq is restarted, breaking dnsmasq

I'm running Debian Jessie and I'm trying to configure dnsmasq as a caching DNS server. I used a guide to come up with the following /etc/dnsmasq.conf: listen-address=127.0.0.1 bind-interfaces ...
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1answer
31 views

Unable to SSH to internal IP

Read a few related questions here and here. The situation is as follows: assume that I have a computer A and computer B. I am able to ssh to both computers when by setting Port Trigger and Single ...
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8 views

ethernet usb adapter ax88179_178a, ARP captured with 62 bytes

While debugging some l2 protocols on an ethernet usb adapter (chipset ax88179_178a) I noticed 2 bytes from Frame Check Sequence (FCS) are promoted to user data. Dump of the arp frame 60 bytes is now ...
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1answer
36 views

How to determine remote PC network address?

Let's say I have two PCs connected with ethernet cable. No NAT, VPN, routers ... nothing, just one cable with two PCs connected to both ends. For example PC1 could have an IP 192.168.1.1/24 (actually ...
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2answers
30 views

I can't find my modem IP at all

Every tutorial I've found so far help me find my router IP but I need my modem IP as well. I have two devices, a wifi router and a dsl modem, not 2 in 1. The ipconfig -> default gateway, returns the ...
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24 views

Install Windows 7 64bit over network

I am trying to get our computers and network setup to where i can re-install (or fresh install) windows over our network. All our computers get set up the same way with the same software. I would like ...
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1answer
1k views

Pinging different IP address than what I entered

Can anyone please explain why CMD pings a different IP address than the one I am searching for?
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1answer
15 views

Restricting certain printers to certain programs

At my place of business, we use desktop PCs as Point-of-Sale units as well as workstations. We have two networked laser printers (standard letter size) in the office as well as receipt printers at ...
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18 views

Network kBit/s drops to 0 intermittently

I am streaming live video to a server on my PC, now and again the video stream would freeze. When looking at the output from nload the network speed seems to drop to 0kBit/s for a second and then ...
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13 views

How can I share the Wireless connection across my LAN, and still access LAN locations

At the moment I have the following setup (all windows 8.1, router: BiPAC 7800N): Generally, 50-60% of the time, I use the router to connect to the internet (1.5mbs), but usually when working I ...
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1answer
19 views

Hide HTTP Destination with a Raspbery Pi

I wanna realize some kind of WebServer or Proxy on my Raspberry Pi that hides the real http requests from any firewall. Following scenario: computer@school --Request--> myRPi --Request--> ...
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1answer
15 views

The best way to setup port forwarding

I have a situation when I want to connect from Windows machine to a web server running in virtual machine in Linux host. For this I would like Linux host to listen on a certain port and redirect it to ...
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1answer
15 views

Windows 7 / VirtualBox / VMWare : DNS : local name fails - not even DNS lookup, FQDN works

My problem in short: Entering http://app01:8084/ into the browser does not find my server. Entering http://app01.my.domain.com:8084/ does work. With the localname Wireshark not even captures a DNS ...
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1answer
39 views

Two routers at home, is there any intrinsic property that could differentiate networks?

I have two routers: A is a Samsung CY-SWR1100. B is a Bless ZIO 9500GD. Both are capable of both wired and wireless connections. I have disabled wireless features on A, and connected B's uplink to ...
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Can I connect to a remote desktop computer to make a call using a home telephone landline number?

I am living in country B, I own a residence in country A where my family lives. There is a desktop computer that I remotely access and use through TeamViewer. Can I use that computer to make calls ...
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1answer
11 views

How to configure Sophos UTM to mask an internal ip with a DNS name

I have a CRM software which runs on Apache on a separated network at a 10.10.10.10 ip while my local network is at 192.168.1.0 range. I also have 10.10.1.0 range for VPNs which are only can connect ...
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1answer
28 views

Setting a system for university dorm voice communication [on hold]

I'm interested in setting up a system which would allow students in my university dorm to communicate to each other freely. Not sure if we can use existing wifi-routers installed in our hostel ( ...
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20 views

What is port 1001 used by NT Kernel & System on my Windows 7?

Sometimes i make ssh tunnel which listen as sock proxy on port 1001. But lately i can't bind to this port. Apparently this port already occupied. I can bind to any port for my ssh tunnel. But I'm ...
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HP ENVY 5530 e-All-in-One Printer seemingly not connected to Wi-Fi… Yet somehow is?

I am struggling to figure this out. When I attempt to print from my Mac running Mac OS X 10.10 (Yosemite) it says it is not connected. On the printer—an HP ENVY 5530 e-All-in-One Printer—it says it is ...
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1answer
36 views

Probing a port for RDP

I use an ssh tunnel to RDP into my home computer ("home"). Occasionally, the tunneling software running on home crashes and the RDP port stops getting tunneled. I've attempted to resolve this by ...
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43 views

Why Have Multiple Servers [on hold]

This may be an elementary question, but I am wondering what the advantage of having multiple servers (SQL Server, Web Server, NAS, Domain Controller, VPN, etc..). Why not have all of these pieces of ...
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Prevent flooding in Ubuntu [on hold]

I have an Ubuntu machine and I think a software running on it cause flooding of my router and my internal network goes down. There exists any software, in Ubuntu, to prevent this to happen? For ...
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24 views

.Net application cannot connect to remote servers if it is started before VPN is started [on hold]

We have a C# (.Net 4.5) Winforms app that communicates with a web server hosted over the internet. It works fine otherwise but fails when user switches to VPN while it is running. It is ...
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1answer
24 views

What is the proper way of setting up two IP’s with one domain name?

I have two Ubuntu Servers (S1 & S2 for example) on two different public IP’s (static & are in different locations). I got a domain name from GoDaddy. Lets call it, example.com. I have setup ...
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1answer
13 views

view shared folders for only users who shared with

I shared a lot of folders in my PC , every folder with only one person, when everyone enter to my computer on network, will see all folders that I shared. and this will be confusing. becaus person ...
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17 views

Can't connect to IPSec VPN via D-Link DIR-100 router

I am trying to connect to VPN via Cisco Systems VPN Client with IPSec/UDP transport, but I am getting error: Secure VPN Connection terminated locally by the Client. Reason 412: The remote peer ...
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25 views

LAN network freezes

I have three Ubuntu computers connected to a router. Everything's OK, both have internet conections running well and can connect via ssh to each other. In one computer, I usually launch a softwared ...
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1answer
31 views

Know username who is working on remote desktop

We are a team of 20 people we have a machine that is used by everyone. We take remote desktop of that machine to work on. so if somebody is working and i want to take that i have to ask everyone in ...
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1answer
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No networks found upon returning to original location

The oddest thing is happening with my network connection. I can work on it fine at home, and then I bring it to school and it connects automatically to that network too. But then when I get back ...
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2answers
42 views

How are Internet connections differentiated from each other by an operating system?

Given this example, how would my operating system differentiate between each request. Let us say I have 3 tabs open, and at the same exact time, they all go to http://google.com. How would my ...
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2answers
30 views

How to connect to my web server?

I have implemented a simple web server as a solution to a course assignment and I want to connect to this web server over the internet. I've set it up to listen on port 22881 and configured my router ...
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3answers
63 views

How can you calculate IP address subnet ranges?

If you're given: Number of needed subnets: 2 Network Address: 195.223.50.0 I can answer the following: Address Class: C Default Subnet Mask: 255.255.255.0 Custom Subnet Mask: 255.255.255.192 ...
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Forwarding some ports and websites from “eth0” to “wlan0” with IPTables

I have eth0 and wlan0 devices in my work laptop. eth0 access the company's network and it comes with the whole firewall rules and so on. So I’m unable to use Skype, Google Hangouts and other things I ...