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

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NAT several subnets with same IP range to a single interface

I have the following problem: a customer have several LANs, for example LAN1, and LAN2 with the same private IP ranges (192.168.10.x), and I need to monitor all the networks. I have name three ...
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1answer
35 views

How come I can't ping a computer on the same network?

I use a MacBook Pro (Retina), and using my old MacBook Pro, I can ping my MacBook Pro (Retina) successfully. And I can also ping my MacBook Pro from my MacBook Pro (Retina) successfully (all in the ...
2
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1answer
2k views

Why does NTP require bi-directional firewall access to UDP port 123?

From What are the iptables rules to permit ntp?: iptables -A INPUT -p udp --dport 123 -j ACCEPT iptables -A OUTPUT -p udp --sport 123 -j ACCEPT Also, from the NTP website: ... ntpd requires ...
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2answers
22k views

ASUS RT-AC66R hard reset

Have an ASUS RT-AC66R - we had set it up for our church and was working flawlessly. I was approached last sunday to say it was not connecting (2014-01-19). We had set it with the 2.5 and 5 Ghz ...
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2answers
627 views

More than one ADSL WiFi Router with Modem on LAN

We have three ADSL Wifi Routers which are connected to my ISPs, these are wifi access points for the various computers that we use at office. Devices used: http://www.dlink.co.in/products/?pid=451 ...
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0answers
18 views

Issue with setting up IPSec VPN in host-to-network mode

I have set up IPSec VPN using OpenSwan on CentOS 6.5. But not able to get the tunnel up and running. When site B tries to ping my VPS (site A), they get following error: Feb 26 11:33:59 [IKEv1 ...
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3answers
170 views

Can I use my Wi-Fi router to connect my desktop to a Wi-Fi Internet?

I am using windows 8.1 and a TP-Link TL-WR720N Wi-Fi Router . I was using Internet from broadband to my desktop and my laptop with this router (wired connection in desktop and wireless connection in ...
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0answers
24 views

How come I can ping only certain computers and not others?

I use a Macbook Pro Retina, and using my old Macbook Pro, I can ping my retina successfully, and I can also ping my Macbook Pro from my retina successfully (all in the same network). However, I can't ...
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1answer
16 views

How do I prioritize one network interface over another, in the context of 'lower level' windows functions?

Alright so I think I'm at the right SE site... We'll find out in a minute; but my apologies if I'm not. Anyway... I have a couple of network interfaces on this system ( and a couple at my place of ...
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1answer
2k views

VLC playing vid over samba stuttering?

This is sort of an open ended question, so any recommendations will be appreciated I have a ubuntu box as my main server and I stream video on my mac since I can't carry my server box upstairs This ...
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2answers
11k views

How to get IP address of all users on a network on Mac OS X

There is a similar question here, but it doesn’t answer some of my questions. The biggest problem is it says to fill in “MyOtherMac” with the name of the other computer found in the first step. The ...
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1answer
94 views

My Wireless network disappears, however it shows other available networks

I've been using a D-Link wireless modem with router and Win 7 PC. I face the following problem now. My Wireless network shows in the list of available networks during start-up, but disappears soon ...
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0answers
13 views

SSH to computer behind a NAT via binding to its specific network adapter

Is there an SSH client that can be bound to a specific network card with dynamic IP? Or a way to bind an SSH client to a network card like ForceBindIP but also permit it to see localhost? Or any ...
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0answers
55 views

Website redirects me to U.K. version even though I have an American IP

I recently visited a site (www.supremenewyork.com/shop/all) which has U.K. and U.S. versions depending on the user’s location. Somehow, I triggered it to read me as British/U.K. I’ve tried it on other ...
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0answers
19 views

Windows cannot access \\[other computer] error code 0x80070035 [on hold]

I have 4 laptops, 2 running Win7, 1 running Win8.1 and 1 running Ubuntu 14. I used to have access to each other with occasional problem, which was fixed by rebooting the router. I've changed one ...
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1answer
21 views

Is it possible to use WiFi routers provided location in PC?

I am using broadband connection and my ISP’s location is about 15KM away from my home. Whenever I use some any map app to detect my current location it I think—not sure—it detects the location of my ...
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0answers
14 views

Mac network and Internet access issues

I work in a school that has a department server running a Windows platform. We have some oldish Macs running OS 10.5 that won't take a departmental image and so have been kept to use as extra stand ...
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0answers
567 views

limiting upload bandwidth in Mac OS X Yosemite (10.10)

I have ADSL internet, and when there is an application uploading to the Internet at full speed (e.g. Skype or Chrome during file uploads), the download bandwidth becomes very very slow. Meaning I ...
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1answer
365 views

Connect to external VPN from an Ubuntu Guest machine on VirtualBox

I have the folding VirtualBox setup: My host machine running a Kubuntu 14.04. My guest machine is running Kubuntu 14.04 as well. My host machine is connected to office A’s LAN and has access to ...
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2answers
27 views

Windows netstat reports an “amnesia:2554” connection: what the hell is “vcnet-link-v10”?

Running netstat in Windows reports this line: TCP 192.168.1.161:59065 amnesia:2554 TIME_WAIT 192.168.1.161 it's me, but we have no “amnesia” host on the network. Looking for info ...
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1answer
34 views

How can I use my laptop like an external hdd with use of any cable [duplicate]

I want to use my laptop like an external hard drive. How can I completely access my laptop's storage on another computer with the help of any cable? Can we mount a particular partition of the laptop ...
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21 views

How to configure an Advantek Networks Router WR541R as a repeater?

I have an Advantek Networks Router WR541R, and I wish to configure it like a repeater. However, the check-box "Enable WDS" seems to be disabled. I tried activating the check-box that says "Enable ...
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2answers
35 views

ssh connection between two local computer

I'm trying to establish an ssh connection between my personal computers, connected with LAN and Wi-fi to different networks. Let's call them computer A, with Ubuntu 14.04.2 LTS, connected with LAN, ...
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18 views

Special connection issues only on one computer

sorry for the sketchy title but I don't know how to describe my problem. Since 1 month I have connection problem ONLY on one computer: -longer loading pages (sometimes impossible to load page I need ...
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1answer
12 views

how to use isc-dhcp-server in place of router dhcp

i have a virtual Debian installed on my VMware running on win 7 64 bit , i am using a bridged connection for my virtual machine , i installed isc-dhcp-server and changed the /etc/dhcp/dhcpd.config ...
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16 views

Power Line Adapter extended range

I recently moved into a new house, and brought with me a pair of old Netgear Powerline 200Mbps adapters. I use this to connect my two PCs (a small HTPC and desktop), a PS3, and A/V Receiver to the ...
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13 views

Add External Internet Route to Existing (VPN based) Network

The situation is as follows. A remote site is connected via VPN router to the "mothership." They now have their own high speed internet connection that they need to use for external internet tasks ...
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2answers
3k views

How do I set up a bridge on Ubuntu GNOME 14.04

I found a guide for setting up a bridge in Fedora and was trying this: $ nmcli connection delete p33p1 $ nmcli connection add con-name br0 type bridge ifname br0 autoconnect yes $ nmcli connection ...
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2answers
34 views

Cannot connect to a Macintosh computer on the same network via hostname. Works with IP address

I’m trying to connect two Machintosh computers using SSH via their hostname. Both computers are running Mac OS X Yosemite 10.10.2. And both computers connected via a Telus branded Actiontec T1200H ...
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2answers
5k views

Can't use local default gateway with Cisco Anyconnect VPN connection

I'm using Cisco Anyconnect as my VPN client on Windows 7. When I connect to VPN, all my traffic is routed through the remote gateway, but I'd like the traffic to route through the local gateway. I've ...
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2answers
45 views

How do I communicate with hundred of devices over internet? [on hold]

I'm starting a personal project where I will deploy some Internet connected devices (maybe hundred of them). I need to be able to get data and communicate with this devices through my computer or my ...
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16 views

How to make a direct network connection between a Win 7 and Win 8 PCs?

Have two PCs. One has Win 7, the newer is equipped with Win 8.1. The Win 7 unit has data that I need to transfer to the Win 8 unit. To accomplish this both units must be operating and I need to load ...
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0answers
18 views

Why would we need to restart network interface periodically?

Occasionally, one or more machines in our 20-node server room here at U. Washington will start lagging, to the point that SSH connections into it takes minutes or just stall. Some high-level effects ...
4
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1answer
2k views

XP pings router but can't ping the Internet

All machines on the network are able to access the internet but one. It is running Windows XP SP 3 and is wired into the router. I have looked at No Internet with LAN Connection and XP can connect to ...
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1answer
21 views

Make private computer's IP accessible by server

To say it in other words: My computer has an IP address 1.1.1.1 and the server has an IP address 2.2.2.2. My computer can access the server's IP 2.2.2.2 and work with services running on its ports ...
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1answer
19 views

How to setup Internet access on existing in house network?

I currently the following set-up. 5 computers are hardwired thru an ethernet switch to share a "company specific software program", one of these computers connects to an additional computer by a ...
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1answer
5k views

Windows 8 Hidden Downloading? Slow Internet?

After upgrading to Windows 8, im facing a very slow download speed. My router and the NIC is working fine because on the same PC I also have Linux. In Linux, everything works fine. When checking ...
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1answer
735 views

How to use ip rule and ip route commands for IPv6 addresses?

For IPv4 we use: ip rule add from (ipv4 address) table 60 ip route -net (ipv4 address) mask (ipv4 mask) (interface number) How do I use the ip rule and ip route commands for IPv6 addresses?
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1answer
23 views

Problems with RDP over OpenVPN Only to Win 7+ computers

I am having problems RDPing from a Win 7 client to a Win 7 box on the other side of an OpenVPN server. Connecting from my Win 7 client to an XP box works wonderfully. The destination machines do not ...
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2answers
464 views

Network Copy Paste

Is there a easy way to share your clipboard over network. Basically I work on multiple machines simultaneously and constantly need to copy and paste between machines, is there a tool that can help me ...
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0answers
38 views

Multiple Gateway, for VPN and Internet

I'm pretty new as a system administrator and I've got a problem to deal with in my company. We recently got a VPN and it is working great, I already tested it and all is good. Now in my main site, ...
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1answer
3k views

Ethernet issues in Linux mint.

After a hardrive crash I installed mint 17 LTS with many attending woes related to lack of drivers (two of my 8 usb ports can actually recognize devices plugged into them). I'm currently attempting to ...
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0answers
18 views

Opening port 80 in router and Tor network doesn't work

I closed port 80 in my router . now when I type "192.168.1.1" to browser, I can't access the page of router settings to change settings and open port 80. Also 443 , 8088 ports open and 8080 has been ...
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3answers
196 views

How to set up a wireless server, allowing access to files on computer, without offering Internet?

I would like to pull into a truck stop and offer a folder of free documentaries, broadcasting from my bus. I have a bunch of videos in a web folder and can access it locally and would like others to ...
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2answers
5k views

Delayed startup of network (Wi-Fi) icon

When my Windows 7 Starter netbook boots up and after everything is loaded, it takes about 5 minutes before the network icon near the clock becomes functional. When there’s an available Wi-Fi signal – ...
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3answers
3k views

iptables syntax to forward remote desktop requests to a virtual machine on CentOS host

I can rdesktop into a VM running Windows XP hosted on my CentOS 5.4 machine from the hosting machine and work just fine using the private address (192.168.122.65), but I now need to allow remote ...
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1answer
22 views

Using two network connection types on Windows 7

My home network has a single router/fibre adaptor that provides internet to the house. Several devices are hardwired (3) to it and many more (3-10) connect via WiFi. My PC upstairs uses a powerline ...
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21 views

100mBit switch traffic greatly degraded - dropped packets over gigabit network

We currently run a network in our office using mostly Gigabit switches: a main 16 port unit at our server room and a second 16 port in a network closet on the main floor. We have a 100mbit switch by ...
0
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1answer
205 views

Bridged VLAN and VAC can't connect to the internet on DD-WRT

I just recieved my new Netgear Nighthawk AC router, and I installed the latest DD-WRT from myopenrouter.com (build 23720). I am trying to create a VLAN bridged with a Virtual Access Point (VAC) so ...
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3answers
2k views

Unable to connect to samba shared folder via windows

im new to linux and Samba. Aim Create a called Shared_folder which can be accessed by ALL users (group name = users). Therefore, in order to map the drive in windows, the user is promoted to enter ...