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

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dhclient not working for

I tried to get a IP address for eth0 via dhclient, but it hangs forever. Please help me find out what's wrong. I am running it inside a virutalbox guest machine. There're two interfaces, eth0 and ...
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12 views

How to disable client computers internet connection?

Hi I'm using a windows server 2012 OS, My problem is how can i disable or prevent users to have internet connection? Is this available in group policy object?
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12 views

Can't access Apache outside LAN

I have been trying to set up apache to use as a small personal web server, but I am running into a problem. I can access apache from inside the local network on port 8073 (my isp blocks port 80) and ...
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7 views

Port forwarding on a Huawei EchoLife HG8245

The problem is port forwarding in my EchoLife HG8245 router. I am able to port forward, and I know it works. But after some time I've came with the conclusion that my router only accepts 1 connection ...
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0answers
5 views

How to spoof the MAC on a wifi, Linux Mint 17, with NM?

I can't find a reliable way to spoof my mac. If I use the "clone MAC address" on network manager (I use Linux Mint 17, Cinnamon), I can't connect to my wifi. I tried everything, unless I remove the ...
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5 views

My router is having trouble with Windows 8 devices

I have a TP-LINK Wireless N Router WR941ND and several devices (2 notebooks and 1 cellphone). The cellphone is a Windows Phone and the computers are a Acer running Windows 7 Pro and a Dell Vostro V14T ...
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6 views

10 Gb NIC autoneg off?

I have fancy mellanox 10Gb NIC but somehow I can see frameerrors whenever I am stressing the hadoop cluster. Our network guy told me the switch has been hard coded as full duplex and autonegotiate, ...
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8 views

What is difference between homeusers group and users group?

What is difference between homeusers group and users group? I want to know the property of homeusers group. and I want to know the property of users group?
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1answer
19 views

Slow LAN connection on one machine but not another

I am using the same ethernet cable on two different machines and getting two incredibly different results. The following tests were done on a Windows 7 desktop and a Linux laptop. On my laptop, ...
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1answer
7 views

Software to provide loopback at remote endpoint, and client software to test performance

NOTE: I'm not looking at using the lo loopback network interface. We're developing an embedded device that has its own internal Ethernet network, and a second network that is exposed to the outside ...
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8 views

Bad universal repeater and access point configuration

my friend have problem with bad internet connections. The problem is that he have Access Point and Universal Repeater and they are bad(old). They use B+G standard but connection is bad and unstable. ...
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9 views

Access Apache22 server installed on guestOS(FreeBSD) from Host(Win7)

I would like to access my freshly installed apache server on my FreeBSD guestOS from Windows 7. So I set my virtual network on VMWare to bridged, I edited the hosts file on my Windows, I opened a ...
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1answer
17 views

Prevent Users from accessing certain IP ranges when Teamviewer is active

I asked this question on Network Engineering, but determined that possibly using a script or software might be the better solution. I have a network with multiple VLANs and subnets that get routed to ...
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8 views

Cant use host-only adapter and bridged adapter at the same time virtual-box

I want to create a virtual network that real devices can connect to using virtual box. I have 2 routers I am bridging to virtual firmware. I have servers also running on vm's and would like to be able ...
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0answers
11 views

Automation of control panel > Wireless Network settings(802.11 modes) through Powershell or any other automated procedures

I want to automate the "Control Panel\Network and Internet\Manage Wireless Networks" page in Windows through Powershell or any other automated procedures, to change my wireless adapter's mode to all ...
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1answer
19 views

Joining client to Server in VirtualBox

Having installed the trial of Server 2012 and a copy of Win 7 Pro in VirtualBox, I now need to join them together so the client can be in the domain of the server. I need to deactivate dhcp within ...
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28 views

sftp scp can not work , result in network down

root@6-2:/root> scp 1.pcap yqiu@10.xx.xx.xx:~ yqiu@10.xx.xx.xx's password: 1.pcap 0% 0 0.0KB/s --:-- ETA I use scp to ...
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0answers
8 views

VISP and Peer connections

I just want some help regarding questions that came to my mind while googling for how to become an ISP. Most of the literature talks about buying a wholesale solution, VISP, and make a peer ...
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1answer
20 views

“Bad Password” Message in WICD-Curses

I've been trying to use WICD-curses to connect to my Wi-Fi network. I thought it would be simple: I went to the config page for my network, entered the password at the bottom, hit F10, and waited for ...
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12 views

connect to network and netsh tend to lag indefinitely

Questions Why are netsh and "connect to a network" lagging indefinitely? How can I repair this? Possible workaround: can I configure Windows 7 to connect to a named network automatically without ...
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0answers
13 views

Capture data leaving Application Layer of TCP stack programmatically [on hold]

Is there any way to capture data after it leaves Application Layer but before Transport layer in TCP/IP stack programmatically?
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0answers
6 views

Engenius ENS202EXT multiple AP on campus Channel conflict?

I have 10 of these AP around campus, all about 75-200 ft apart from one to the other. I have had them set up on auto channel since I have had them but two of them have a couple issues. One of them ...
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2answers
23 views

Network Sniffer identifying strange requests to *.crdui.com

So I just downloaded a Network Sniffer on my local machine, as I think something is going on. As soon as I opened it, selected my network adapter (an LTE stick), it started showing me requests from ...
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1answer
27 views

Computer keeps disconnecting/connecting [on hold]

What can be the issue? internet access keeps disconnecting and reconnecting every few seconds? I updated the Intel gigabyte network adapter.
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0answers
6 views

Programming the firewall on a Siemens router

I have a Siemens ADSL SL2-141 router. From the web interface, I can program the firewall (e.g. block/unblock IP addresses). I want to do the same programmatically via telnet. But, when I ask for ...
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10 views

Prevent DHCP Lease Updates From Adding Gateways

I am having a problem preventing DHCP Lease Updates from modifying my route table in Windows. My issue is that I am routing all my traffic through a VPN and purposefully delete the 0.0.0.0 route ...
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2answers
626 views

Why is the Ethernet network interface name “Network 3” in Windows?

I have configured my network interface on Windows and gave it a static IP address. After it got enabled, I notice that the name of the network is Network 3: In Linux, we know that Interface_name ...
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28 views

Login before using the internet [migrated]

How do you setup a user login page in order to connect to the internet just like the one at McDonalds and Radisson Blu? What kind of setup is that? We are in school and would like to have that kind ...
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1answer
25 views

Opening a port on CentOS server not working externally?

I am trying to to setup a Ghost blog instance on port 80 of my CentOS 6 virtual server. There are no pre-installed web servers occupying port 80. If I run Ghost in production mode as a background ...
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1answer
20 views

Can I use an integrated modem with wireless router just as a modem with a cable service?

I live in Seattle, and my mom lives in San Francisco. She recently called me stressed out about how "the box with lights" doesn't work anymore. After calming her down, I found that she recently ...
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10 views

My WD My Book World (blue rings) is not accessable

My drive shows up under the network devices. When I click on it a windows security pop-up shows asking for my network username and password to connect to the drive. I have tried I am running windows ...
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0answers
17 views

Synergy using internet connection instead of local connection

I've had Synergy installed between two machines and it work flawlessly before, but I'm experienced a strange condition with my new desktop. When I bring my mouse from my server PC to my client, the ...
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1answer
19 views

How to route openvpn-server traffic over the vpn itself

So I have a server with the public ip address of 101.102.103.104 (for example). This server is running an openvpn server, plus a bunch of other stuff that is listening on the public ip network device ...
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10 views

WiFi extender, extending a cellular hotspot

I have a 4G phone which in the corner of my house receives 4G signal, and using speediest.net I get about 20Mbps, if I'm connected directly to my phone from my laptop and sitting next to it. My ...
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2answers
23 views

Not able to connect to Google docs, error message: The remote device or resource won't accept the connection

I have started facing a strange issue on my home network. I am not able to connect to docs.google.com, it gives the following on firefox: And in chrome: When I troubleshoot the link it gives ...
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1answer
29 views

1 modem 2 routers with independant networks

Ok I have 2 routers and one modem. (I also have a switch handy) I would like to connect both routers to the modem. The only catch is I don't want both networks down if one router stops working or is ...
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13 views

Dell optiplex Gx 755 desktop : no internet wire

I just purchase online a Dell optiplex GX755 desktop but cannot connect to my home internet. I ask my internet provider to send a tech. When he came he said my PC don't have internet wire. How can I ...
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1answer
12 views

How to connect BT Fibre HomeHub to a Netgear router

Situation is this: In the house I have a BT Fibre HomeHub3, connected together with a BT Openreach modem, works great in the house, no problem. To this HomeHub I have connected an Ethernet cable ...
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16 views

Windows 8 stops transferring PC to PC if the files are numerous or large

I have a very annoying issue that is driving me insane. I have a laptop and a desk PC both with Windows 8 and with shared folders, so far so good. I have to move a folder from the Laptop to the ...
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1answer
27 views

How can I apply a proxy IP address to all my connections?

I live in a building where we share a static IP address. Looks like a roommate got banned from a website where I also have an account, and now I can't visit this website either. I had to install a ...
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6 views

Unable to access Public share on My Book Live NAS

We have a Western Digital My Book Live N.A.S. on the local network, it was mapped as a network drive and has worked great in the past. Recently the router reassigned some of the IPs and it couldn't ...
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14 views

Connect to a network stuck at getting information on Windows 7

so I just added a password to my Wifi cause I felt someone was stealing it. On my macbook I was able to reconnect just fine. I just typed the password and done. But on my windows 7, I am not able to ...
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3answers
52 views

Linux: How to get current bandwidth usage from command line?

I'm looking for a good way to get the current total bandwidth usage on a linux machine, i've tried iftop, nethogs, but they doesn't show real bandwidth usage (compared to system monitor), anyway they ...
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11 views

How to configure old Windows clients to use NTLMv2 when connecting to a Windows 7 network share?

So we have a shared folder on a Win7 machine which can be accessed from only Vista or later, but apparently reject older clients with error 58. The reason is that Win7 forces NTLMv2 protocol while ...
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1answer
28 views

Switching to IPv6 - Do I need a router?

In the future, since every IP (IPv6 adress) is going to be global, we don't need to use NAT. So basically, why do I need a router on an IPv6-only global network? Why not just replace my router with a ...
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0answers
19 views

High-performance HTTP request sniffing in linux [on hold]

I have a VPN server that many users are connected to. I want to know which URLs are mostly accessed by the users. Therefore, I have to sniff HTTP requests that are transferred inside my VPN server. I ...
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16 views

Is the response port specified in an http request?

I was studying something called 'Network Mapping'. I got to a point where when I click a link to www.google.com, a packet gets sent from my computer, NAT in the router translates the packet and sends ...
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16 views

How to disable Kaspersky network protection for Google Drive?

I'm using Google Drive's Windows application to synchronize my files between my PC and the cloud storage. The problem is that this app doesn't have any kind of speed limit option, so it takes up ...
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1answer
31 views

Utility to monitor a TCP connection for drops

I found some similar questions, but not quite like this, so am going ahead and posting. I use a replication product at a client site. We are running a Windows 2003/2008 server environment. It is ...
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1answer
13 views

How to forward a port in VM which is behind NAT

I see a few questions similar to my but, they didn't answer my question. I have a router. I have installed Debian in VM and setup a ssh server on it. I want to forward a port for this machine on my ...