For questions on connecting devices together so that they can communicate with each other, as well as on networking equipment such as routers and switches.

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13k views

How to communicate between two VirtualBox VMs running on same host

I am running two VM instances of RHEL/CentOS on my VirtualBox instance running on host Windows 7. The problem is when I am executing VBoxManage list vms -l | more and then sunsequently VBoxManage ...
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1answer
3k views

Network Copy to Windows 7 File Share Fails and Kills Network Connection

I have a Windows 7 64-bit Home Premium machine that I use as a file server. This machine is wired to my DLink DIR-655 wireless router. I share a disk with guest access on that machine. The network ...
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1answer
532 views

Linux port open locally, but not externally

Port is open locally, but not externally Neo4j is a graph database with a browser and REST interface.I need to start a second instance of neo4j server. I would like to run the process a user with ...
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1answer
559 views

How to test the throughput between 2 Network adapters on the same PC? [closed]

The motherboard of my desktop PC features two Ethernet ports. Each port has its own network controller from Realtek and they are both capable of Gigabit Ethernet. Now, I have this crazy idea to take a ...
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3answers
7k views

Unidentified network: How to configure TCP/IPv4 for Windows 7?

When I try to connect to internet I keep getting the error Unidentified network. I've tried numerous attempts at restoring access without success. IP release, flushing DNS cache, reinstalling NIC, ...
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2answers
1k views

Why do I have inconsistent network issues with my laptop's wireless?

I'm having trouble with my laptop Internet connection. It's patchy at best and resets or freezes a lot. The signal strength is also random. I thought it might be a driver issue but now I don't know. ...
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3answers
1k views

Making two networks visible to each other

I have made a rough drawing of my network layout: The gateway, the two servers and the wifi router have a global IP address with a subnet mask of 255.255.255.240. The PCs have local IP addresses in ...
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2answers
46 views

Overriding DNS in peer-peer fashion

I frequently have the problem that I am on a local network where DNS is done by routers I have no control over. I often want to send files or data between two of my devices on the same subnet, but ...
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1answer
2k views

Mac OS X Mountain Lion can't ping/telnet localhost. Point to a wrong public IP

I've been developing Node.js apps on my localhost on port 1337 for last two years with no problem as shown below. $ node app App started on port 1337 Today I wanted to test how things go with ...
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0answers
174 views

Cannot launch application on Wifi Connection

I followed the instructions on the answer to: How to launch a command on network connection/disconnection? . Basically, I want to kill uTorrent when I connect to a specific network. Has something ...
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2answers
8k views

Getting strange IP Address from router

I've had a router set up for quite some time and it has been working perfectly. My wife called me to tell me the wireless internet wasn't working and when I came home I saw that my phone was connected ...
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1answer
731 views

No internet access on Windows 8

I have a new laptop with Windows 8. When I try connect it to the internet all the Metro apps don't work, and in the tray (on network connection monitor) I see a yellow triangle with an exclamation ...
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98 views

Fast HTTP downloads freeze frequently

I've been having a problem recently when it comes to downloading files with fast speeds (of any size) using HTTP. The problem is mostly happening on a specific file-hosting site that I bought a ...
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2answers
460 views

bash script tells me when new computer joins LAN via smbclient

I'm thinking of creating a script that loops until it finds a new IP on the Network created by the router DHCP Server. I am thinking of using NMAP. nmap 192.168.0.1-254 However I am wondering how I ...
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3answers
856 views

XP can connect to router and LAN but not Internet

I have a modem router (TP-Link TD-W8961ND) connected to the internet and working fine. It is broadcasting a wireless network and that too works fine. I have a second modem router (Siemens SL2-141) ...
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3answers
786 views

Easy way to view a website at a different IP than associated with hostname?

Some background — WordPress is really annoying in terms of what hostname you access it from, which makes creating testing environments rather painful (That is, I could create a subdomain for staging, ...
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1answer
16k views

How to configure 2nd network card for use in VMWare Workstation?

I am using VMWare Workstation 6.5, connected to my network with a bridged adapter so that the virtual machine OS (Windows XP) has its own IP adress. This just worked out of the box. Now my host ...
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1answer
581 views

The network setting for /etc/network/interfaces for static IP of a supernet address

I want to change my Ubuntu to static IP. My current IP setting is: eth0 Link encap:Ethernet HWaddr 00:0c:29:xx:xx:xx inet addr:192.168.16.59 Bcast:192.168.31.255 Mask:255.255.240.0 ...
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1answer
2k views

Logon failure unknown username or bad password when connecting Windows 7 PC to Windows XP PC

I connected a new Windows 7 PC over a network to an old XP PC. I wanted to copy some files from the XP box to the new one, but kept getting getting an error: Logon failure unknown username or bad ...
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1answer
901 views

How to route only work traffic when connected to company VPN [duplicate]

Possible Duplicate: How can I make the Windows VPN route selective traffic (by destination network)? Let's say that the company has a policy that forbids listenning to internet radios using ...
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2answers
255 views

Possible to have 2 ADSL lines in my configuration?

I work from home and have a relatively complicated setup using VMWare ESXi. My kids are using up bandwidth and it's affecting my work connection which isn't good, so I intend to purchase a 2nd line ...
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1answer
189 views

Mysql remote server with rights to WMI

I just fixed and got my MySQL running on my computer on port forwarded with all the grants. However, when I am enabling remote server Windows asks for user login information for WMI I need to enter ...
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1answer
387 views

Unknown Wireless USB Adapter Drivers Needed

I have found an old USB wireless adapter lying around the house that looks quite old. It would be very useful if I could get this working, however, I can't get any details on the model whatsoever to ...
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1answer
226 views

Network Monitor Tool [duplicate]

Possible Duplicate: Easy-to-use tool to monitor incoming network traffic I want a tool similar to task manager that can show per-process network bandwidth. Best is if it combines the ...
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1answer
1k views

How to add Public (External) IP Addresses to my private network (windows domain controller)

I have set up a private domain network at home. I have a domain controller, a DNS server, and a DHCP server all running on one Windows 2003 Server machine. I have about 10 other machines around the ...
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1answer
677 views

Stop all “under-the-hood” Windows network activity [duplicate]

Possible Duplicate: Create firewall “profiles” for Windows 7 Occasionally I tether my laptop to an iPhone and would really like Windows to stop all its' background network activities (such as ...
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1answer
548 views

alternative to bcmwl-kernel-source package

I am looking for a good and stable alternative to the bcmwl-kernel-source package in linux. I've been using a very unreliable and basically crappy ndiswrapper setup, and it's not working for me ...
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2answers
332 views

If there are 2 NICs on the same machine, can a TCP client on one NIC connect to a TCP server on the other NIC?

I use TUN/TAP to create a tun NIC tun0 with IP 10.10.10.2, and I have a real NIC eth0 with IP 202.112.34.49 Then I run a TCP client which binds its socket to 202.112.34.49 and a TCP server binding 10....
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3answers
2k views

Unable to connect to FTP sites even with Windows Firewall disabled

I am unable to connect to FTP sites to download drivers from companies like Dell and HP which share their drivers via FTP. I can download the drivers by changing the link to HTTP but this is a ...
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1answer
187 views

Is there any way to monitor the health of my Internet connection?

Is there a way I can log the health of my Internet connection like pinging a server then making a log/graph where I can see when my Internet connection were down??
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1answer
155 views

Windows 8.1 cannot connect to one specific device on LAN

I just changed out an old Linksys WRT54GS wireless router for a TP-Link TL-WR841N wireless router. I immediately flashed the router to use DD-WRT. Everything went seamlessly except that my Windows 8....
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2answers
4k views

is it worth getting a DOCSIS 3 cable modem for premium cable internet service?

Is it worth getting a DOCSIS 3 cable modem for premium cable internet service? I currently have a 3-4 year old Motorola Surfboard DOCSIS 2 cable modem from my last apartment, but I am now paying for ...
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1answer
522 views

How to setup virtual PC with php and access it from PC host?

I want to put a php server on Virtual PC but can't figure out how to connect to it from PC Host. Is there something special to do or to know about network config ?
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1answer
44 views

Get data usage on each connection

How can I measure the network usage on different connections I use separately in windows? This feature was there in Windows 8, but has been removed in Windows 10.
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1answer
1k views

dd-wrt router crashes during big uploads, downloads are perfect

I download about 300GB monthly in big months and it’s always perfectly fine and router has uptimes of months, but when I start uploading a few gigabytes of data via FTP or via vSphere, the router ...
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1answer
82 views

Why cannot I ping computer name without dot?

In my home network I have a dhcp server and a dns server running on a router. Dhcp and internet access are working fine. I have for each device on my home network a dns record that associate some ...
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0answers
79 views

Using a D-Link ADSL Router as a modem

I have a TP-Link Archer C7 which has no ADSL and has one WAN port. I am using an ADSL connection for internet. As I don't have any ADSL modem with me , I plugged my old Dlink ADSL router to my ADSL ...
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1answer
35 views

How to configure a intranet router to inform its hosts about routes to other subnets?

It sounds a little bit strange, but the current network configuration is, I have two local networks: 192.168.7.0/24 and 192.168.144.0/24. Their gateways are respectively 192.168.7.1 (R1) and 192.168....
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1answer
3k views

Remember network drive password on XP and Vista [duplicate]

Possible Duplicate: Map Network Drive with Password When I access a mapped network drive, I'm asked to provide the login/password information for the server even though I have the remember ...
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1answer
2k views

Application / Device setup for remote network connections

My question is related to what I asked about here: Why is my connection refused when port-forwarding? So I have a device hooked up to my router and I would like to be able to connect to this device ...
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2answers
37 views

SSH - SSH into a host, under a router which you don't have access (can't forward the port)

Host A wants to ssh into Host B which is behind a router. We don't have access to the router of Host B, so we can't do port forwading. Which other alternatives are there for allowing Host A to ssh ...
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1answer
47 views

VMware - CentOS 6.5 Static IP Addresses

I installed CentOS 6.5 On VMware Workstation With a static IP Addresses but I'm not able to use Internet connection!! I applied all the steps performed in this post (From the official CentOS Website):...
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3answers
2k views

Unable to share internet by using HOSTEDNETWORK after installing AVAST recently

I was able to share my laptop's internet with my smartphone by using this command "netsh wlan start hostednetwork". But when I installed Avast in my Windows 8 OS, I am able to start the hostednetwork ...
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1answer
342 views

Monitor and control internet traffic in a small office

I work in a small office. There are on average 20 devices connected (all wireless) to same router during the daytime. Currently, we have a airties 5650 (modem and router) connected to our ISP. ...
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1answer
341 views

Monitoring/logging a malfunctioning internet connection

I have a mysterious internet connection problem: Every 15-20 minutes, the connection will become very slow, and take 2-3 minutes for anything to load. I've had a technician from the ISP over here to ...
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1answer
1k views

How to use the Suricata IDS to monitor the entire network?

I have the following 3 PCs connected to a router via Ethernet: PC1 – 192.168.1.101 (Linux Ubuntu) PC2 – 192.168.1.100 (Windows) PC3 – 192.168.1.1 (Windows) All PCs can ping each other. PC1 has ...
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1answer
251 views

Why does my modem takes many attempts to connect to internet

I have this old DSL 502T Dlink modem router(wired). I have been using this for many years without any issues. Recently though, there is issue connecting to the Internet (WAN side). It takes many ...
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2answers
1k views

Unable to RDP to a second computer on the same router after changing default RDP Listening Port

I have one Linksys WRT54GL router running Tomato firmware. Connected to it via ethernet are two computers with Static IP addresses. The first computer is using the default RDP port 3389. I set up ...
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1answer
164 views

How to make a pc act as a router on some port

I have a linux server in my lab(hereafter called pc1), and I have a windows pc2 where I have a game server running on. But since it's a private network, and the only pc that the internet can access is ...
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1answer
36 views

How to detect bi-directional link state

I have the following scenario: PC1 (Windows 10 Home) connected to LAN-only network (currently using a dynamic IP address) If I try to use a static IP, the connection will occasionally drop half the ...