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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1answer
103 views

How to specify domain name and ip address in URL (ignore CN)

Is it possible to make a request for a specific domain name at a specific ip address? Usually one looks at the domain name and then uses DNS to resolve the ip address, but I don't want to do this. I ...
1
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2answers
304 views

What is a typical and simple to remember example IPv6 subnet?

In IPv4 people often use subnets like 10.0.0.0 (10.0.0.1 - 10.0.0.254) or 192.168.0.0 Both of these are rather easy to remember. What is their alternative in IPv6? I know I can probably invent any ...
1
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1answer
127 views

Linksys router gives good IP to wireless client but not to wired client

Setup: I have a Linksys WRT54G router running DD-WRT. I changed the router's IP address from 192.168.1.1 to 192.168.2.1 and set a Wi-Fi password, but other than that it's a default DD-WRT with ...
1
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2answers
167 views

Scanner Canon DR-2020 U network

I bought a scanner (Canon DR-2020 U), but it doesn't have the network card. How can I make this a network scanner? I can hook the scanner to a computer that is on most of the time, but is it ...
1
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1answer
46 views

What is the best VBox network configuration scheme for reaching a network adapter?

Maybe my question can appear trivial, but I am completly lost with all the available network configurations in Virtual Box. My problem is as follow, I have an hardware with a static IP adress ...
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0answers
347 views

How to solve ERR_CONNECTION_RESET error

I have recently set my firewall settings to default, and since that moment I can't access the websites hosted on IIS (on my machine or on machines in the same local network as me) from the web ...
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0answers
276 views

Use libvirt to configure KVM guest with user defined tap device

As far as I know, if we set up kvm guest OS with libvirt, it will automatically create bridge device virbr0, and tap device vnet0 which represents VM guest nic (and of course vnet0 is attached to ...
4
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3answers
4k views

Wifi stops working every 10 minutes on Mac OS X Yosemite [SOLVED]

Every 10-15 minutes, my internet connection fails in the following manner: Cannot load websites Cannot connect to Dropbox Cannot connect to IRC Skype still works Slack still works Still able to ...
3
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1answer
64 views

Practical way to share 15GB of files with distributed users on cable connections

I am working with a company of 7 employees distributed throughout the U.S., each with basic cable internet connections, who need to share about 15 GB of thousands of documents (mostly Word and PDF ...
1
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1answer
766 views

URL Logging on home network

I am interested in knowing what websites my teenage boy is going to from his Chromebook connected wireless to my home network. I have been open with him and have told him that I am not censoring him, ...
3
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1answer
430 views

Master browser msbrowse registration

On a SMB/CIFS network using NetBIOS over TCP, the group name \x01\x02__MSBROWSE__\x02\x01 is registered, which is the master browser for the subnet. If I have different domains/workgroups on my ...
1
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1answer
288 views

Network Hub to Hub - no network

I've set up a home network using hubs. I know it's best to replace hubs with network switches however the hubs were donated and it's not feasible to buy network switches. The setup consists of a hub ...
0
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1answer
210 views

Creating a DHCP server on a Virtual Machine

i have a Windows 8 machine with PFsense in virtual box. The host have the following nics: Wi-fi Ethernet I have 3 network adaptares on the virtual Machine: Wan (Bridged adapter through host's ...
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0answers
44 views

Windows 8 - Wireless Adapter stops connecting

This similar thing has happened before, I fixed it by not using windows 8 anymore. However it's getting quite annoying. What happens is, if my Wireless network adapter is disconnected from the router ...
1
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1answer
82 views

I'm benchmarking various DNS servers and one of the adresses shown seems like my router, how to check it?

I'm using DNS Bench to test 10th's of DNS servers, and two addresses in the list appear to be from my router: 192.168.0.1 Non-routable local internet address 192.168.1.20 Non-routable ...
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0answers
254 views

How can i connect to a VPN then to a sock5 proxy?

Hi i need this for a school project im working on,the thing is i connect to a VPN through OpenVPN or a VPN client. So my conection look like this. My PC --- VPN --- Web if i connect to a sock5 proxy ...
2
votes
1answer
53 views

Where is my internet speed slowing down?

I got a 300/300 Fiber internet connection - but running a speedtest, i only can max on just below 100/100.. How can I find out where the speed is going, can I check or see if its my router or my pc, ...
2
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2answers
8k views

CentOS 7 VirtualBox no internet access

I am having trouble connecting my CentOS 7 guest to the internet. My VirtualBox Network configuration is as follows: Adapter 1: NAT; Adapter 2: Host-Only (vboxnet0) vboxnet0 is connected set up ...
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0answers
324 views

Windows 8.1 | Make remote network locations available offline

I've set up a NAS on my network, and would like to make some of the files accessible offline on my laptop. I can do this by mapping a network drive to \\NASNAME\share, and then right-clicking to ...
2
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0answers
376 views

MacBook Pro retina 2013 with Yosemite 10.10.3: Severe Wi-Fi issues only on main account

In the last few weeks my MacBook Pro has developed increasingly severe Wi-Fi problems. At first it would drop connection every 10 minutes or so, but now it cannot find a network at all. In fact, the ...
1
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0answers
153 views

SCP connections mysteriously drop; too many connections?

I am running OpenSSH via Cygwin on a Windows 2008 server. This system acts as a file server for a pool of 30 build systems. At build time, each build system copies files as necessary from the file ...
2
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2answers
307 views

Why is my connection only 100Mbps?

We recently have installed Cat6 cabling in our walls using Cat5e jacks (Could not find any other type). From research, this seems to be a working method, however the connection is auto-negotiated by ...
0
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1answer
68 views

what would be the benefit of adding a dns server to isc-dhcp-server

I have a very simple networking setup. I have a couple server applications like plexmediaserver, transmission-daemon, samba, etc... My router just went down, so instead of buying a new router, I just ...
0
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1answer
699 views

what is ddns-update-style in isc-dhcp-server on ubuntu

I have a ubuntu server setup as a router (among other things), I now am adding a dhcp server to it. When configuring isc-dhcp-server, the /etc/dhcp/dhcpd.conf file has an option called ...
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1answer
78 views

Cannot connect to certain sites after moving computer

I recently moved my computer to a new location in town. We have the same ISP, Eastlink, but new cable modem, and new switch. I am connecting via Ethernet, but the effect is the same on Wi-Fi. I have ...
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0answers
79 views

Network connection degrades after a while

My topology is as follows: Fiber -> Modem --[PPPoE]--> WiFi Router --[Cable]--> Win Computer A | `-------[Cable]--> Mac ...
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0answers
305 views

Unable to connect server through winSCP and its giving access denied error

Even though by providing correct username and password it's not allowing to connect to server. I turned off firewalls also in server. But, still not able to access FTP connection. I also checked that, ...
1
vote
1answer
39 views

a network gateway that modifies content - how to do it?

I'd like to set up a network gateway that will modify on the fly the code of webpages accessed by users on my LAN. For instance, I'd like to automatically remove ads, suspicious object or iframe tags. ...
0
votes
3answers
60 views

How do clients identify the router on a network?

How do clients connected to a LAN network with a NAT router connecting the network to the internet, identify the NAT router and hence know where to send their traffic for the wider internet. If this ...
0
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1answer
72 views

port forward in INPUT level

I want to change the destination port of the ipv6 packet in the INPUT level. So I tried to use ip6tables with nat in the INPUT level but seems this command does not work # ip6tables -t nat -I INPUT ...
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0answers
197 views

Use Ubuntu Iptable to route public ip to pc in private network

I am currently set up a Ubuntu server as a Router which has two network interface. eth0 -> Connecting to public internet ( 10.10.1.78 ) eth0:1 -> 10.10.1.79 eth0:2 -> 10.10.1.83 eth0:3 -> 10.10.1.81 ...
3
votes
1answer
2k views

How to disable routing all traffic (including web-traffic) through the VPN in client's .ovpn config file?

In order to connect to corporate network I've got these four files ca.crt client.ovpn client.key client.crt I couldn't create VPN connection via Ubuntu GUI, but I managed to get it work from ...
0
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3answers
154 views

Where can I find the definition of “eth0” in my Ubuntu 14.04 OS?

I cannot find the definition of eth0 in either /etc/network/interfaces or /etc/NetworkManager/NetworkManager.conf, but eth0 works perfectly. So who can tell me in which configuration file I can find ...
0
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1answer
67 views

Private host with static ip on VMware

I have an Ubuntu virtual machine that I run on my Windows 7 laptop with VMware player 7.1.0. Here is the setup: Virtual Machine Settings > Network connection : Bridged. Settings of the Ubuntu ...
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0answers
119 views

Can't forward ssh port properly on fritzbox 6490

I tried to forward port 8022 to port 22 on my raspberry pi in my fritzbox 6490. Therefore I added the port forwarding rule for udp as well as for tcp. My problem is, I keep getting a timeout error ...
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0answers
189 views

Forward NTP from one network to another network connected to the Internet on Windows 7

I have NVR server which is running Windows 7 with 2 network interfaces. There is one network dedicated for IP Cameras - 192.168.254/24. Second NIC connected to my network with internet access ...
0
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3answers
79 views

Static IP without a static IP

I need my network to have an external facing IP address that is static. My ISP will not provide me with one. I know I can use use DDNS to achieve this in a way. I want to setup an Exchange server ...
0
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2answers
116 views

See real IP through HTTP Proxy

I'm setting a HTTP Proxy in a Java Application. In that application I test wether the proxy is working by querying http://api.ipify.org/. However, I get my real IP address back instead of the one of ...
0
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0answers
22 views

LAN disconnects, brought new LAN card but old one comes back [duplicate]

So here is the story, the old LAN port came with the motherboard and after installing windows 8.1 (from windows 7) the LAN would drop in about 30 mins of a restart and never connect again. I thought ...
1
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0answers
104 views

vnstat: Statistics of two connected OpenVPN-interfaces differ

I have two servers connected over an OpenVPN tunnel. The tunnel is a 1-to-1 tunnel with fixed IPs, so there should be no one else talking over the same tunnel interfaces than these servers. Some days ...
0
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0answers
190 views

What factors limit the number of sessions a router can handle?

We have had a number of problems recently with our office connection. Unfortunately FTTC is not available in the area, so we have two ADSL connections load balanced via a Draytek 2860Vn+. I have had ...
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0answers
78 views

My PC loses Internet connection from time to time for 30 seconds

When I play games, from time to time I lose Internet connection for about 30 seconds, I check with my browser and it doesn't load pages also. I thought this might be because I'm using a dumb setup at ...
0
votes
1answer
29 views

what the “!” means in the iptable rule

what the "!" means in the following iptable rule iptables -I inacc ! -i br0 -p UDP --dport 69 -j ACCEPT I think is related to the interface br0. I think it mean any interface except the br0 Am I ...
0
votes
1answer
348 views

How to use 2.4 GHz and 5 GHz at the same time

I have the following setup: 1x TP-Link Archer C7 (with to Accesspoints "AC24" on 2.4 GHz and "AC5" on 5 GHz) 1x Notebook with 2 Wifi-Adapters (TP-Link Stick connected to "AC5" and Intel N 7260 ...
2
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1answer
3k views

What is creating the utun0 network interface on OSX? What is for? What is it exactly?

What is creating the utun0 network interface on OSX? What is it being used for? What is it exactly? The interface only appears after connecting to the Ethernet or turning on the Wi-Fi and goes away ...
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0answers
204 views

How to connect to a wireless network with different domain credentials

I've recently purchased a new computer, and I'm using it for work. The only issue is the username/password combo I'm logged in with is different to my domain credentials in the office. Now I've ...
1
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2answers
1k views

renaming network interface with systemd

I want to rename on Fedora 22 a network interface managed by systemd-networkd (version 219) from the system-assigned name enp2s0 into wan. For that I created the following file ...
1
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2answers
86 views

How to connect two computers wirelessly

I want to connect my Raspberry on which I installed archlinux arm, wirelessly to my computer. With this connection I want to stream a live video from the Raspberry Pi. Raspberry<------Wireless ...
1
vote
1answer
14 views

Port restrictions and MACs

I have a question regarding connections within a university setting. In my room I have two network points. One for my pc and one for my voip phone. Each network port is restricted to one mac address, ...
3
votes
1answer
304 views

Why did the naming convention of network interfaces change in linux?

I recall not too long ago, interfaces were identified by eth0, eth1, wlan0, etc. Now I'm finding interface names like enp0s3, enp0s8, etc. In another question I asked here only moments ago, someone ...