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

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30 views

Sub net, 2^n or 2^n - 2?

To calculate how many bits I need to borrow when designing a subnet, is it 2^n = X or 2^n - 2 = X X being the number of subnets desired. I've found two websites each giving one of those ...
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1answer
67 views

Which ports are blocked least often? [closed]

I travel a lot, and frequently find myself on a poorly-configured “guest” network which blocks all kinds of connections, sometimes including my VPN. I'm setting up an alternative tunneling ...
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2answers
98 views

Pages on server can be accessed but server cant connect to internet?

I have a virtualbox server running ubuntu 12.04 on a windows 7 host machine. The machine is set up to have both a NAT and a bridged adapter. When I access the server from other machines (port ...
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0answers
182 views

How are defunct networks removed from a LogMeIn Hamachi network?

I have a Hamachi network that I use for work and one that I use w/ friends. For the one that I use w/ friends, I'm the administrator of the network. Occasionally I have to reset my system from time to ...
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2answers
163 views

Wired Network Occasionally Fails (Debian)

Context: I have an ethernet connection to my router. I'm running testing version of Debian (though the problem persisted with the stable too) and I don't have any network manager. My ...
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1answer
1k views

Networking Multiple PCs and using all their processing power for one program [closed]

I would like to use a set of networked computers to work out some processes which would normally take long to do on one. I figured that it might be done faster with networked PCs. These PCs are all ...
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1answer
87 views

how to configuring WIN 7 as Access point and using proxy

[info] : The connection : phone to computer to modem to internet. Modem IP : 192.168.123.1 Computer IP : 192.168.123.1 Computer OS Windows 7 Phone connection : Wifi (using Internet Connection ...
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2answers
894 views

Add specific route via start-up script

I need to setup route for one of my computers. I want it permanently so I don't need to enter the command myself every reboots. However the route command I use ain't a normal one, because I use 2 ...
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3answers
377 views

Sync Only New Files

I have a large collection of photos. I only want to sync the latest (in my case right now 1 year) to a laptop. I have tried syncovery and Goodsync without seeing any modifiers that would only select ...
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0answers
83 views

VirtualBox Networking does not work on Linux host?

My host OS is Fedora 18 (kernel: 3.11.10) and I am running VirtualBox 4.2.18. The only networking mode which is working is NAT and non of Bridged Adapter, Internal, and Host-Only works! By this, I ...
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1answer
127 views

Debian Wheezy - Some Websites Not Loading

I just upgraded from Debian Etch to Wheezy 7.3. Things seemed to go fine but I can't load half of the websites I usually go to any more. I thought it may be an IPv6 issue so I disabled it but the ...
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0answers
121 views

Connecting to Guest Machine apache from another computer VirtualBox

I'm using virtualbox running CentOS and I am unable to connect to the guest apache server from another computer. I can connect to the guest from the host and from any computer on my LAN network, but ...
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2answers
139 views

Can't delete a administrator file even though I am an administrator

I accidentally created a VPN and now when I try and delete it, it just does nothing even though I press Delete. No matter what I do, I can't delete it and it's messing up my IP address since I'm ...
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1answer
2k views

Setting up VPN - Thomson Modem, Asus Router, UPC as ISP and T-Mobile for my Phone

I have a Asus RT-AC66U AC1750 Router which provides a VPN Server. For the Connection it uses PPTP. This Router is connectet to my Thomson TWG87OUG Modem which provides me with a internet connection ...
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0answers
493 views

OpenVPN disappears after a short period of time

I have an Ubuntu client OpenVPN that connects to a Debian OpenVPN server. For a while I had it setup on default port 1194 with udp and I was connecting from a network that did not filter my ...
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1answer
2k views

Network issues, resolving host

My network connection randomly drops for a 5 minutes or so when I'm online. It always happens when I boot up my computer. I can tell because it says:resolving host in Chrome and I can't ping any ...
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0answers
4k views

PC connected to internet via usb wifi adapter, how to share that connection using wifi router?

I have a main computer that connects to the internet via a wifi usb adapter (Alfa AWUS036H) + a big outdoor antenna. I connect to an AP that is at my brother's house about 150mts from the antenna. ...
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2answers
6k views

Should I use a patch panel in my home network?

I'm busy with renovations in my house and in the process of running CAT6 cable to different areas in my house where I need it. I'm new to networking so I'm not sure of the best way to do this. I have ...
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1answer
74 views

Accessing ICS computer from the LAN

I connected Computer C to Computer A through Windows ICS (Internet Connection Sharing). Win7 (A) assigns an IP address to C. As expected, computer C now has access to the internet. My problem is ...
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1answer
50 views

How to configure the physical machine and virtual machine?

If I want to transfer data between the physical machine (windows operating system) and virtual machine (Linux real time operating system). Could anyone please explain about configuring the data ...
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1answer
84 views

Looking for a fast and reliable way to copy files to SFTP

I always used SFTP for copying up CMS systems, modify system/user files, or files related to sites and similar. Small things. Even if the file was larger, I could just wait it out. But now I have ...
2
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1answer
31 views

Networking for a business purpose with three different internet connection

I have three broadband connection on three different floors. All are connected to a wireless D Link ADSL router. I want to connect them to a network and form a single network. How can I do this?
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167 views

Long wait after login Ubuntu Gnome 13.04, probably network related

Some basic information about my computer: Ubuntu Gnome 13.04, Gnome 3.6.2. Linux 3.8.0-34-generic #49-Ubuntu SMP Tue Nov 12 18:00:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux Recently it takes very ...
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1answer
34 views

How does an ADSL modem tell which local client to associate with each response from a server?

Does an ADSL modem generate a random string for each request I make and when response comes it directs it to my computer (but not to my phone)?
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1answer
660 views

Windows 7 sometimes fails to resolve hostnames correctly

I have a Problem with my PC sometimes resolving the wrong IPs for some hostnames. Network setup I'm currently forced to use a o2 Box 6431 with Firmware 1.01.23b installed. Connected to this network ...
2
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1answer
142 views

How can I utilise unused space on a large network in a decentralised yet resilient manner?

I administrate a large windows network and I would like to make use of the unused space on the workstations, is there a free way to do this? Let's say we have: 200 Windows workstations each with ...
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1answer
8k views

Windows shows “Limited Connection” when it isn't

[12/16/2013 - Updates below] [12/20/2013 - Updates below] Bear with me, this isn't the normal "limited connection" sort of question, I promise. When I am at the office and on the LAN, my Win8.1 ...
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1answer
2k views

ssh multi-hop… adapting command to ssh config file

I am trying to put my multi-hop ssh command into the ssh .ssh/config file. This is my connection graph: laptop (i am here) ------> userver -------> workstation I have put the ssh public rsa keys ...
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0answers
30 views

win7 internet only works on 1 pc if other is turned on

Me and my room mate are sharing internet with a TP-link WR-1043-ND. Whenever my computer is turned off, or my network adapter is disabled, my room mate has generally slow internet, and 3000+ ping to ...
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2answers
2k views

Why can't I connect to an AFP server over VPN on OS X 10.8

I have set up a VPN connection on my MacBook Pro OS X 10.8.5 laptop, to my office network so I can access my AFP file server from home. The VPN connection appears to be working correctly. The Status ...
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0answers
164 views

Router shows mysterious DHCP client that does not exist

I am having trouble with the access control of my router. It is a DSL-2730R ADSL Router. In the 'Status - DHCP Clients section' there is always an unknown peer called Nicolas-PC. Changing the ...
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1answer
59 views

Isolate LAN network

My home network consists of 4 computers connected with wifi. Problem is the people who own 2 of the computers don't really know how to protect against viruses. Is there a way to either create 2 ...
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2answers
4k views

How to increase ping time/network connection latency on Windows?

I need to permanently increase network latency in approximately 100ms, without losing packets. Reason: On a certain server and internet game my ping is too much lower than the other people playing ...
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1answer
57 views

How to let any user without root change specific network(qdisc) settings?

I have made a simple router from a Linux PC, for the purpose of simulating poor network conditions using qdisc (netem and tbf). Now, I want to allow any user to activate specific presets that I have ...
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0answers
21 views

Routing multiple static IPs to a single websever, hosting multiple sites

I inherited this network configuration from previous employees. Essentially we have fourteen static IPs assigned by our service provider, the current modem/router correctly passes the information into ...
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1answer
237 views

Connecting to a VPN server through another VPN server

My question is strange, but once you understand my meaning you'll know why I asked. I work at a web development/hosting company and we have dedicated servers hosted by a third party in Dallas ...
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1answer
625 views

"Local Area Connection doesn't have a valid IP configuration

recently I got forced into a windows update when I was asleep and I went to go browse the internet this morning and got greeted with the lovely internet icon with an error sign on it. I've had this ...
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3answers
677 views

ping [network name] returns wan ip address? [win7]

I have a small LAN with local ip addresses like 192.168.0.###. When I ping the network name of one of the machines from the command prompt I get the WAN ip of my router and "request timed out" errors. ...
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0answers
38 views

One Windows 7 pc slows down when another pc is turned on

I have a very strange problem that is affecting only 1 computer of the network (a network composed of 6pcs and two network printers): If I turn on pc number ONE first, and pc number TWO after that, ...
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0answers
25 views

Wierd connectivity problems

I'm having some quite confusing problems with the network. First of all, all of the computers can access the internet and mapped drives and so on, the server can ping any LAN computers IP, the ...
0
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1answer
351 views

Network adapter connected by NAT has same address as host

I have created a virtual machine with 2 network adapters, one connected to the host using NAT and the second connected through a host-only adapter. This set-up works for what I want to do, Give the ...
1
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1answer
73 views

Routing error to WINS name without .local

I'm having a weird issue on the network. all windows PCs behind the main router, XP, win 7 and win 8 are routing an adress incorrectly, to what looks like an external ip. The machine, a netgear ...
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1answer
539 views

ADSL Modem loses sync every 93 minutes

I've been using a ZTE ZXDSL 831 modem behind a WRT310N router for around 5 years. 2 months ago, lightning struck my house which blew the fuse on our circuit breaker. Once we had the power fixed, my ...
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1answer
4k views

Accessing to a folder fails from Windows XP to Windows 7 in some cases

In our office all PC are connected in network using workgroup. But sometimes when we connect to a windows 7 shared folder from an Windows xp pc i get error like \\pc123\myfolder is not accessible. ...
2
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1answer
233 views

Linux routing: connect to VPN but still make services (e.g. Apache) accessible via ISP-assigned ip

I have a pfSense firewall sitting directly behind my cable modem. On my lan, among other things, I have a linux (Mint 13) box running apache. I have a port forwarded from pfSense to my linux box and ...
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1answer
707 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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0answers
1k views

How to configure AirPort Extreme as the DHCP/DNS/NAT server where DSL modem/router does them?

I have an AirPort Extreme BS and a modem/router (ISP's NetMaster). I want to host my own websites from my Mac Mini with OS X Server. At the moment, ISP's router is the DHCP/DNS/NAT server, and AirPort ...
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3answers
701 views

Arris DG860A and ASUS RT-AC66U to cover two floors [closed]

I have an Arris DG860A modem from my ISP with built in four port switch and wireless N. I also have my own ASUS RT-AC66U wireless router. How can I configure both of them to get the best wireless ...
2
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0answers
535 views

Share VPN connection and normal internet with mobile device over WIFI

I have a PC and Mac that I have running on a VPN for work. The VPN is only required for traffic to a sepecific set of servers (not all my internet traffic is routed over the VPN). The vpn is made (on ...
0
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2answers
954 views

Router behind Modem (Thomson TWG87OUG and ASUS RT-AC66U)

I have a Thomson TWG87OUG. The Thomson Modem has Wifi, LAN, DDNS and Forwarding which I am using currently. But there is some functionality I am missing so I want to buy a Router, the ASUS TR-AC66U, ...