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

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Wrong order in CAT5 cabling — does it matter?

I've got in-wall CAT5 wiring in my house. The wall sockets were done by an electrician and the requirement was straight-through T-568B, but I think he got it wrong. When I use a cheap cable tester, I ...
11
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2answers
774 views

Why am I seeing such low SMB transfer throughput?

Ok, there's a bit more to the story than the title implies. Background and Environment: I'm copying several TB from an older Ubuntu server to a newer Windows 2012 server over SMB. (Technically, it's ...
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5answers
5k views

Set Ethernet Network as Metered Connection in Windows 8

Windows 8 introduced a new feature which allows users to set any Wi-Fi network as metered so that they can check their bandwidth usage: [img credit] But, it doesn't allow users to set any Ethernet ...
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2answers
8k views

Is there an app for the Mac that shows you which apps are using the network? [duplicate]

Possible Duplicate: Application for monitoring all applications that are using the internet in Mac OS X I use Menu Meters to show me how much data is being sent and received by my Mac as a ...
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7answers
5k views

Should I use a network hub or network switch?

I want to put a networking device on an Ethernet connection between 2 digital devices. The communication will be 1-to-1; there will only be 2 devices connected through the networking device. And I ...
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2answers
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Will using a 10/100 router stunt gigabit switch speeds for an internal network?

I have a 10/100 Verizon router. 3 computers are connected to this via Ethernet. I'd like to put a gigabit switch between the computers and router to enable gigabit speeds on the intranet. If the ...
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2answers
976 views

Multiple switches - how does it work?

I was reading about networking hardware some time ago and came across an explanation on how network switches work - basically, it said that a switch keeps an internal database of what MAC address is ...
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2answers
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Should uploading a file on DSL kill the download speed?

I have the 20,127/893 Kbps service through CenturyLink DSL. I've ran speed test and it typically reports speeds close to that. Except whenever I upload something substantial. Like a video file to ...
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3answers
13k views

How to share CPU or RAM?

In networking we share File(Disk Driver) or Databases. But how can we share CPU or RAM over the network.
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6answers
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Unblockus.com: how does it work?

I am physically located in Japan but am a United States citizen serving on a U.S military installation so I'm "technically" in the United States. When I go to websites, for example www.google.com, I ...
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3answers
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Linux: Share keyboard over network

As the title suggests, I want to use a remote keyboard locally. The remote keyboard should be usable in a TTY and, if possible, in the X-Server as well. Are there any drivers (kernel modules) ...
10
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2answers
4k views

Can IP v4 and IP v6 share a single physical Ethernet?

I keep reading about the transition from IP v4 to IP v6, and the possible advantages and problems. One thing that keeps popping up is "dual-stack" networking, meaning (I believe) a host can speak both ...
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6answers
11k views

Why is my router assigning the wrong address via DHCP

I have a WRT54G router that is set up to serve out addresses via DHCP. It correctly serves up addresses to every other machine on the network, including another PC, my macbook when connected via ...
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9answers
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How to Transfer Audio Output from Mac OS X to Ubuntu via a Network?

Is it possible to somehow tap in to sound output and send it via network to another machine. Formats probably are incompatible, but I would appreciate even on some information on how to tap in to ...
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5answers
1k views

Top ten security tips for non-technical users

I'm giving a presentation later this week to the staff at the company where I work. The goal of the presentation is to serve as a refresher/remidner of good practices that can help keep our network ...
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2answers
18k views

How to delete a VPN connection in Windows 8?

How do i delete a VPN connection in Windows 8? In Windows 8 i can have VPN connections: How do i delete them? Things i've tried: right-clicking the connection name hold-clicking the ...
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3answers
22k views

Is there a nice, graphical, packet sniffer for Mac OSX?

I have Wireshark and have used tcpdump, but I was wondering if there was a nice GUI to capture and view packets on the Mac. Ideally, something that is protocol aware, so that it knows how to break up ...
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3answers
7k views

Home CAT6 wiring: CMR vs CMP?

I'm planning on wiring my house with CAT6 cable. I'm finding a large jump in price between CMR and CMP cabling, and I'm confused by what counts as a 'plenum' and what does not. As I'm wiring my ...
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4answers
60k views

Setup static IP under Ubuntu 14.04 Trusty

How to setup static IP address under Ubuntu 14.04 Trusty? My setting is not working. What special about Ubuntu 14.04 Trusty is that I found it now using the "source-directory" keyword to source ...
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7answers
7k views

How to make windows task manager to show network usage?

I found that Windows 8 Task manager does not show network usage correctly: As you see, my torrent client downloads at a speed of 1 MB/s, while Windows shows zero. All adapters are disabled except ...
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3answers
42k views

How to route only specific subnet (source ip) to a particular interface?

How to route only specific subnet (source ip) to a particular interface? OS: Linux I know I can do easily by destination IP by using something like route add 1.2.3.4/24 dev eth4 but I do not ...
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6answers
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Why can a network address not be a valid host address?

So... I have studied for CCNA and such and been working with IP networking at the least the past 8 years or so. I have always seen and been told that the network address for a subnet is not a valid ...
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2answers
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How to get VirtualBox VMs to use host's DNS?

I use VirtualBox for my VMs. My office network setup is wireless, i.e. I connect to my company's WiFi network, which has a local DNS to resolve local names (such as something.mycompany.com going to ...
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3answers
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How to remove unwanted tunnel adapter connections?

I did "ipconfig" today and found about 10 network interfaces, most of them disconnected. How can I diagnose this? Where can I remove them? Edit: The extra network appear like this: Tunnel ...
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2answers
5k views

How to make a local web server visible from the internet *without* setting up port forwarding on the router?

I develop websites on my (high-end) laptop, and I work from a variety of physical locations. I would like to save the hassle of constantly synchronizing with an externally visible web server in order ...
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3answers
22k views

How to take advantage of two Internet connections (WiFi / Wired)?

I have two separate internet connections, one through WiFi and other Wired. However, generally I have observed that Windows try to use only one ( mostly faster one/ Or Wired by preference - I am not ...
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4answers
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MacBook won't pick up networking on ethernet

First a little network diagram; We have an ADSL router (Standard home broadband Netgear. DHCP, DNS and firewall disabled), connected to a gigabit switch (unmanaged, it just sits there and works). ...
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2answers
6k views

How can I setup an IPv6 network in this way?

I have a network mapped like this : To experiment with IPv6 connectivity, I want to configure my LAN network using IPv6. Can someone explain how to convert the connection between the Desktop and ...
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3answers
42k views

Monitor traffic through a home router

We have an Internet connection which is shared on five computers via a home router. One of the computers is using torrents all the time. I want to find out which, and they won't tell me. How can I ...
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5answers
7k views

Extremely slow internet speed after reinstall

I have recently had a hard drive failure so I was forced to reinstall my OS (Windows 7). After a fresh install, I noticed the internet speed became extremely slow (~15 minutes for downloading a 20MB ...
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1answer
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Mac OS X 10.8 VPN Server: Bypass VPN for LAN traffic (routing LAN traffic to secondary connection)

I have somewhat of an odd setup for a VPN server with OS X Mountain Lion. It's essentially being used as a bridge to bypass my company's firewall to our extranet connection - certain things our team ...
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5answers
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What are the essentials of a Subnet mask?

What is the use of a subnet mask? What is the below output conveying to the user? Connection-specific DNS Suffix . : IP Address. . . . . . . . . . . . : 192.168.1.2 Subnet Mask . . . . . . . . . ...
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How to tell what MTU is being used in Windows XP

I'm suffering from a really weird problem where I randomly get "The connection to the server was reset" errors when trying to access web pages (HTTP error 12031 according to the Windows network ...
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3answers
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What do the numbers used in a IPV6 address mean?

I am trying to understand IPV6. I have a server with the following IPV6 address: 2607:f750:0:3f::f59. I don't understand what the numbers mean. It looks totally different from an IPV4 address. ...
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3answers
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What's a loopback-address? I.e. 127.0.0.1

What is a loop-back address? 127.0.0.1 is a loop-back address, but what does this even mean? Please be very descriptive and give an example, as I'm having a hard-time understanding this. Thank You
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3answers
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Isn't localhost simply 127.0.0.1 on Mac OS X 10.7 (Lion)?

I tried telnet localhost on Mac OS X Lion, and this is the output I got. Trying ::1... telnet: connect to address ::1: Connection refused Trying 127.0.0.1... telnet: connect to address ...
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3answers
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What is the maximum number of IPs that can be assigned to a given computer?

I really need to know this for a linux server, but since it also applies to client OSes, I figured the question should be posed here instead of server fault.
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3answers
49k views

Why does my Internet slow to a crawl unless I reboot my router every few days?

A few weeks ago, I noticed that my Internet connection had slowed down to a crawl. I waited a few days hoping it would go away on its own, but it didn't get better. So I asked this question about how ...
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2answers
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Do browsers create new TCP connections for each HTTP requests?

So I know that HTTP is basically just a text protocol over TCP, and that TCP is state / connection based. That means that the browser has to connect over TCP to a server before doing an HTTP request. ...
9
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3answers
709 views

Can I hide a wireless network

Is there any way to "not advertise" my wireless network to the world in Windows XP SP3? I'm not relying on this for intrusion security. I've read the article. My wireless network has WPA2 with a ...
9
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2answers
30k views

How can I force Windows 7 to give my LAN (wired) conection priority over my WiFi?

Given the choice between my LAN (wired) and my WiFi connections, my Windows 7 PC gives priority to the WiFi - how can I make it prioritize the LAN connection?
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2answers
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Is your MAC address revealed when you hit up a website?

When you hit up a site, such as cnn.com, does the TCP/IP packet contain the MAC address of your network card? Could cnn.com theoretically record my MAC address?
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2answers
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How do I get rid of the VMware “Unidentified Networks” in Windows Vista and 7?

After installing VMware in Windows Vista or 7, there are two public networks that can't be identified, but upon further inspection are virtual networks created by VMware. The problem is when you're on ...
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3answers
1k views

Crimping CAT6 cables results in lower bandwidth than expected

I'm trying to make my own CAT6 cables, because I need specific lengths. I've managed to create 2 "working" patch cables, but when I hook them up to my cable modem, both of them take a fairly long ...
9
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5answers
8k views

Merging two incoming broadband lines for faster internet

We have a broadband line coming into our building which delivers around 8-10mbps, which is ok but not great, although fibre is available in our area (30-100mbps) its not available where we are just ...
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3answers
2k views

Does Windows take care of closing sockets when processes exit?

I've read up this question about Linux, Can a port be bound when the process has terminated? Linux appears to clean up after processes exiting, and leaving open sockets. I was wondering if there's any ...
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3answers
3k views

Is testing Cat5 cable using a testing device necessary if I have verified connectivity with a computer?

I'm running some CAT5 cable around the house and this is the first time I've needed to build/terminate my own cables. I hooked up the cables to a computer and router and was able to reach the router ...
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2answers
7k views

Does 1 Gbit/s port in full-duplex mean 1 Gbit/s send and 1 Gbit/s receive?

I'm figuring out the best router for me based on their performance. When you have a 1 Gbit/s port in full-duplex, does that mean you can send 1 Gbit/s and receive 1 Gbit/s at the same ...
9
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2answers
26k views

Why doesn't “hostname --fqdn” work on my Ubuntu computer?

I'm using Ubuntu 10.04 LTS, and when I type the command hostname --fqdn, I get the message: hostname: Name or service not known. Because of this, I cannot install global successfully, and get the ...
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2answers
8k views

No idea what is listening on port 80 in OS X

I'm on OSX Mountain Lion 10.8.3, and I've freshly rebooted my Mac. I want to start a service (like Apache on port 80), but there is already something going on with port 80: telnet localhost 80 ...