Questions tagged [networking]
For questions on connecting devices together so that they can communicate with each other, as well as questions on networking equipment such as routers and switches.
2,087
questions
196
votes
13
answers
402k
views
How can I make the Windows VPN route selective traffic (by destination network)?
I want to use a Windows VPN but only for a particular network, so that it doesn't take over my entire network connection.
e.g., Instead of the VPN becoming the default route, make it only the route ...
- 5,870
27
votes
2
answers
97k
views
Expanding wireless coverage: What are the differences between LAN to LAN and LAN to WAN when it comes to connecting two wireless routers?
I'm trying to link two wireless routers with an Ethernet cable in order to expand my wireless network. Both routers need to provide wired and wireless Internet access.
I'd like to know the ...
- 281
31
votes
11
answers
168k
views
How can I monitor internet usage in my network? [closed]
I need to know which computer is consuming my bandwidth. Is there a tool to do this?
- 437
51
votes
7
answers
172k
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 okay but not great. Fiber is available in our area (30-100Mbps) but it's not available where we are just yet. ...
- 4,159
12
votes
4
answers
9k
views
Unable to access outside service from inside LAN
I have a weird port forwarding problem. I tried to open my port 22 to the outside network. I was able to access it as long as I am not inside the LAN. I can access it from my office for example. But ...
- 383
66
votes
4
answers
82k
views
How to launch a command on network connection/disconnection?
I have a wifi connection that requires to authenticate using a web form once the wireless link is established.
I know how to automate the authentication with a script that uses curl/curlIE.
But how ...
- 1,252
10
votes
2
answers
12k
views
direct ethernet connection between two wirelessly connected Windows 7 laptops
I've got two systems that are right next to each other, and connected wirelessly to the same router. I want to connect the two of them together with an ethernet cable - both have gig-e and ...
- 129k
103
votes
12
answers
283k
views
Use VPN connection only for selected applications
I have access to a VPN and want to use it only for some applications, not all.
For example:
If I connect to a VPN I want only the applications Opera and Newsbin to use that VPN connection. All other ...
user18861
192
votes
23
answers
418k
views
Why is 'ping' unable to resolve a name when 'nslookup' works fine?
On my Windows XP workstation, I can find the machine I want to connect to in DNS with nslookup:
nslookup wolfman
Server: dns.company.com
Address: 192.168.1.38
Name: wolfman.company.com
Address: 192....
- 2,753
31
votes
2
answers
295k
views
Difference between Ethernet splitter and switch
I have one Ethernet port that is wired directly to the router on another level. However, I want to run a desktop and a server both off this one Ethernet port. Can anyone tell me the difference ...
- 13.5k
349
votes
19
answers
316k
views
How to reliably keep an SSH tunnel open?
I use an SSH tunnel from work to go around various idotic firewalls (it's ok with my boss :)). The problem is, after a while the ssh connection usually hangs, and the tunnel is broken.
If I could at ...
- 6,304
23
votes
3
answers
16k
views
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?
- 18.7k
14
votes
8
answers
72k
views
How to bond two different internet connections [duplicate]
I have two internet connection, each with 4mbps bandwidth. I want to join/merge both of them to get 8mbps speed, both routers have WLAN and LAN capability.
How to Double my speed using two routers?
...
- 347
81
votes
10
answers
437k
views
How to install Windows 7 from the network?
Is it possible to install Windows 7 (Current RTM Version) on a computer without using removable media like DVD or USB?
The first thing that comes to my mind is through the network, but I don't have ...
- 967
101
votes
9
answers
401k
views
How to do networking between virtual machines in VirtualBox?
I have two virtual machines in VirtualBox. I would like to do networking between them. For the moment I have the default configuration on both, but they seem to have the same IP-address 10.0.2.15. I ...
- 27.6k
20
votes
7
answers
140k
views
Enable/disable wireless interface in a bat file
Is there a way to enable/disable a wireless network interface via the command line (so I can put it in a bat file)?
When I'm in the office I use a wired connection, but Windows still occasionally ...
- 9,682
19
votes
5
answers
49k
views
What would be the disadvantages of using a 4 stranded ethernet cable?
I got this cable with a homeplug AV 200 device - its labelled cat 5e
But looking at the plug end has me rather dubious about it.
(There's only 4 strands there, not the standard 8 - and missing pins, ...
- 129k
15
votes
6
answers
26k
views
A good solution to switch between different network settings?
I use my laptop (Windows Vista Ultimate) to connect to a wireless network in college, which assigns a dynamic IP address, and at home, with a static IP address and DNS server.
I'm looking for a good ...
- 4,043
11
votes
3
answers
33k
views
How to find exe listening on port?
I try with netstat -ab -p tcp -n and among the results get:
TCP 0.0.0.0:47001 0.0.0.0:0 LISTENING
Can not obtain ownership information
I am running as administrator and ...
- 289
119
votes
10
answers
447k
views
Make Windows 7 ignore WiFi when ethernet is available
When I dock my Windows 7 laptop, I want it to prefer the wired ethernet connection over WiFi.
This is a pretty straightforward thing to do on my Mac - I just reorder my network preferences, and it "...
- 1,357
85
votes
3
answers
294k
views
How to share any folder without password in Windows 8/10 in a home network if a Microsoft account is involved?
My question is: How to set up file sharing correctly, in a home network, with Windows 8/10, so sharing any folder with "Everyone" (File Explorer->Right click on folder->Properties->Sharing->...
- 4,612
42
votes
2
answers
182k
views
How to block all traffic but one IP in Windows Firewall?
I'm trying to use Windows 7 firewall to block all outgoing and incoming traffic, from all IP's and for all protocals, except for UDP to and from one particular IP address.
The reason why is because ...
- 451
42
votes
7
answers
200k
views
Why does just splitting an Ethernet cable not work?
I thought the Ethernet is logically a one-line communication bus (for argument's sake, I am excluding hubs). All machines attached on the bus hears the same signals and the machines themselves try to ...
- 3,872
26
votes
3
answers
163k
views
How to monitor bandwidth use of each device on wifi network
I have in my home a standard Comcast cable internet connection. I have it going from the wall to a cable modem, and from the modem to a late-series Linksys router, which provides wired and wireless ...
- 576
13
votes
5
answers
86k
views
Connection to FileZilla FTP server works, but directory listing fails
I am trying to set up a local FTP server in my house. Whenever I connect to the account on the computer that hosts the server, everything works, but when I try connecting on another computer, the ...
- 5,548
5
votes
6
answers
9k
views
Software for measuring internet traffic? [closed]
I'm interested in finding a free piece of software for Windows XP & 7 that allows us to measure both incoming and outgoing internet traffic, but not traffic between users of the local network.
I ...
- 250
208
votes
12
answers
329k
views
Disable "These files might be harmful to your computer" warning?
I keep getting this irritating warning when copying files over the network:
These files might be harmful to your computer
Your internet security settings suggest that one or more files may be harmful....
- 24.1k
47
votes
6
answers
112k
views
How does Windows 7 decide which route to take if 2 connections to an internet source exist? (e.g. a Wireless and an Ethernet one to a router)
How does Windows 7 decide which route to take if 2 connections to the Internet exist? (e.g. wireless versus wired)
- 2,566
43
votes
6
answers
183k
views
What is a subnet mask, and the difference between a subnet mask of 255.255.255.0 and 255.0.0.0?
My DSL/WiFi router provided by my ISP has an internal IP address of 10.0.0.138, the addresses provided by DHCP are in the format of 10.0.0.xxx.
Now, I want to start using static IP addresses on my ...
- 18.3k
42
votes
5
answers
191k
views
IPv4 vs IPv6 priority in Windows 7
I have IPv6 connectivity through Hurricane Electric tunnel. Since IPv6 day this year, many services (google.com, facebook.com, etc.) enabled IPv6 on their main domains. On my Windows machine, IPv6 is ...
- 22.5k
33
votes
11
answers
17k
views
Application for monitoring all applications that are using the internet in Mac OS X
Can anyone introduce me a Mac OS X application that monitors all network activity such as what applications are now connected to the internet and how much bandwidth they use (I mean show bandwidth ...
- 5,413
31
votes
4
answers
46k
views
Route the traffic over specific interface for a process in linux
Is it possible to route the traffic used by a process over a specific interface?
For example, network traffic by download application should always use the interface wlan0 whereas all other ...
- 573
31
votes
9
answers
69k
views
Is it possible to host a web server from behind a NAT
My PC is behind a NAT router that has a public IP address. If I want to host a website then I believe I need a domain name which I can purchase from some site which would pledge to resolve all DNS ...
- 2,434
25
votes
6
answers
87k
views
Set up a web server behind a Carrier Grade NAT
I was trying to set up a small home server.
I use dynamic IP adress. My router's wan adress is like this 100.70.81.xxx and my public ip is 81.213.177.xx
I made port forwarding in my router. www, ...
user779261
24
votes
4
answers
91k
views
Using two wireless NICs at the same time on Windows 10 desktop PC
I have read similar questions in the past (i.e. How do I use my dual band Wi-Fi card to connect to 5GHz and 2.4GHz simultaneously on Windows? and Connect multiple WiFi networks simultaneously), ...
- 820
11
votes
1
answer
5k
views
How can I force certain applications to use specific network connections?
Let's say I have two active network connections that let me out to the internet.
I want certain applications to only use Network Connection 1, while some others should use Network Connection 2.
Is ...
- 706
11
votes
1
answer
24k
views
Can't set manual IP to Virtualbox Host Only adapter in CentOS 6.5
When I configure the IP address of VirtualBox 4.3.2 (running on Windows 8.1) host only adapter, it changes it back to some other IP. Guest OS is CentOS 6.5.
I tried to set the IP in network ...
6
votes
2
answers
6k
views
How to know who is listening to port 80 on Windows in multihomed case? [duplicate]
How to know who is listening to port 80 on Windows?
Don't suggest to use
netstat -aon | findstr :80
because it is reporting PID of NT Kernel & System which is useless information.
I need to ...
- 12.7k
4
votes
2
answers
13k
views
How to configure sharing on a small Windows 10 network since HomeGroup is gone?
This is apparently a common problem but I have not found a solution. With the deprecation of HomeGroup after the release of Windows 10 version 1803, I cannot get two computers to maintain network ...
- 165
3
votes
6
answers
12k
views
Port Forwarding not working in DSL Router
I am using BSNL BroadBand connection and a DSL Router is provided that can act as a Default Gateway to many wireless devices. One such device is my server. I have bought a static ip on lease. So that ...
- 365
506
votes
9
answers
57k
views
Did I just get hacked?
I am developing a consumer product, and it is supposed to be connected to the Internet, so as expected, it is connected to the Internet so that I can properly develop it.
I went away for an hour or ...
- 3,539
134
votes
14
answers
121k
views
What is the exact use of a MAC address?
I understand that IP addresses are hierarchical, so that routers throughout the internet know which direction to forward a packet. With MAC addresses, there is no hierarchy, and thus packet forwarding ...
77
votes
7
answers
71k
views
How to use different network interfaces for different processes?
I have two network interfaces on a Linux PC, and I need to manually set the interface that a given process will use.
The program (Twinkle softphone) does not have a similar option, so I believe that ...
59
votes
3
answers
45k
views
Is there a way to find out what application using most of bandwidth in Linux? [closed]
I'm looking for an utility that could show me how much of a bandwidth each process are using. It should just print the data and exit as I want to feed that list into conky.
- 5,878
20
votes
3
answers
56k
views
How to give preference over one network connection over another?
Like most laptops, it has both ethernet and wireless networking options. Likewise, I have a wireless router with 10/100/1000 Mbs. 90% of the time, wireless speeds suffice. But once in a while, I ...
- 6,139
15
votes
6
answers
311k
views
Can I use CAT5e jacks with CAT6 cable?
I was wondering if I can use a CAT5e keystone jack with CAT6 cable. I am refering to the parts that terminate a cable where it comes out of the wall.
I want to run a 30 ft length of CAT6 but all I ...
- 3,284
10
votes
3
answers
66k
views
Disable internet access but leave LAN working
I'm looking for a command (or command line program) to toggle (disable/enable) internet access to the outside world in Windows XP machines. It should temporarily block internet access but leave the ...
- 111
8
votes
2
answers
11k
views
S/FTP or U/FTP when wiring a house with CAT6a cabels for 10GbE?
I'm currently in the process of having my newly built house wired with copper ethernet cables.
This setup is supposed to be "future-proof" to some extend (10-15 years) so I do intent to use 10 GbE in ...
- 257
6
votes
1
answer
6k
views
Accessing localhost web server via reverse SSH tunnel and URL
I have a web server running on a local machine and it is easily accessible to all machines on the LAN. I also have a remote server with a public IP address/URL pointing to it (example.com). I cannot ...
- 183
5
votes
4
answers
2k
views
Desktop Internet traffic measurement software [closed]
Can you recommend a robust Internet traffic measurement tool you had experience with?
Robustness is important because I've used a couple of such tools but ended up uninstalling them because of ...
- 1,013