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

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Broadcasting without 3rd party services

I have Winamp and Shoutcast. But how do I broadcast it to my website/server with out any 3rd party services?
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15 views

How to set up router to always redirect users to a website?

I'm trying to set up a Linksys E2500 to only allow access to two webpages. Both pages are on the same domain (e.g. www.foo.com and blog.foo.com). I've flashed my router with DD-WRT firmware for ...
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16 views

Why (sometimes) I cannot access ubuntu server from IPSec client

My home network topology is: [My laptop] ipsec ip: one of 10.0.0.0/24, internet ip is dynamic from ISP | | <-- internet --> | [My router] running openwrt, LAN ip is: 192.168.1.1, ...
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3answers
120 views

Change subnet on TP-LINK TD-W8961ND

I don't seem to be able to change the subnet on my router (spoiler alert - I'm not terribly good with networks so I would appreciate the help!). When I change the main IP address to 192.168.10.1 and ...
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7 views

Pin Hostnames to MAC Addresses when using Dynamic DNS Updates

I want to start using dynamic DNS updates for an internal system. I'd like the DNS server to pin a hostname to a MAC address so that once the host registers, then the DNS server will not allow others ...
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32 views

Network Copy, One direction damn slow

I have a Home Server (Windows Server 2012 R2) that has a storage pool with a 2 Mirror / 4 column disk layout. IO-tests on the server show that sequential reads are up to 380 MB/s and sequential writes ...
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31 views

Internet speed is slower when connected to mains

I have noticed that my internet speed as tested on www.speedtest.net drops significantly when my computer is connected to mains. My average speed on mains (several runs) is 11.6 Mbit\s, on battery it ...
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11 views

Ekiga softphone shows as “registered” — but is it actually?

Is Ekiga actually registered? How would I know? I think Ekiga connects, or at least it says "registered": But, when I exit Ekiga, and use SFLphone, it fails to register: While sipsak shows a ...
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21 views

Can't access some websites

I have a networking/dns problem in my laptop. I can't access some websites. For example www.accuweather.com I am using a wireless connection. The issue is just in my laptop. I can access the sites ...
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1answer
26 views

Would wireless router speeds ≫ Internet connection’s speed be distinguishable to a user surfing the web over a home cable modem?

I want to buy a wireless router that is fast enough relative to my Internet connection speed that it won’t be a bottleneck. Looking at the specs for wireless routers in the market today, I am thrown ...
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3answers
60 views

How do I find the IPv4 address of a computer on my Macintosh Wi-Fi network?

Is there any way to find the IPv4 address of a certain computer on my Macintosh Wi-Fi network? I know the computer name and such, so how can I use this to pinpoint which IP is theirs?
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13 views

Check if ports are open for talking

I have a software (HP BSM) installed in a Windows server 2008 R2 Std This software needs to "talk" through a specific list of TCP ports and "listen" through other TCP ports. How can I know/check if ...
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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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17 views

If nmap reports a port is open, does that ALSO mean a service is listening on the port?

I have a Thompson TG585v7 router/firewall whose firewall is configured to FORWARD several ports to a computer X54 within the LAN. These ports are in the range 1024 through to 2500 That X54 ...
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1answer
22 views

Spoofing OS userAgent via CUrl; am I approaching this right?

So my school seems to be shaping traffic based on the OS of a device. For instance, I access a course video on my desktop (windows 8.1) and it works just fine (downloading the video at about 400k/sec) ...
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1answer
19 views

How to monitor upload/download on multiple machines

There are 3 windows machines on my home network. I'm hard wired to the router while my parents and younger sister are on Wi-Fi. I’ve noticed the occasional drop in connection speed recently and I ...
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1answer
13 views

Mac osx VPN for internet sharing

Im looking for help in creating a VPN for my mac. I have downloaded cyber ghost and know it is possible to connect a vpn but am unsure at the configuration for the server address etc. Someone in this ...
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14 views

Remote access dns server with static ip [closed]

how can i access remote with Dns server, when i'm having a static ip. The main plot is i'm running tally on a port lets say 9000.i'm developed a android app to send and receive data to the tally.is it ...
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21 views

SSL succesfully installed but not working - Private server public domain name

I'm working on a private Centos server with a private IP (10.x.x.x) linked also to a domain name. DNS are correctly configured. Yesterday the sysadmin installed a SSL certificate, and got the ...
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15 views

Can't get Windows 7 to route between 2 NICs

I have a situation where I need to route traffic through a Windows 7 box that has two NICs: Computer B Computer A 192.168.10.2 ---> NIC1: 192.168.10.1 Router ...
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0answers
9 views

Connect 2 physical machine drops Internet connection

I have 2 physical machines, with 2 VM on the first physical. I have been trying to connect 2 physical machines via RJ45 and give internet to the "lan" via NATting RNDIS on one VM (gateway) and routing ...
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22 views

Router keeps resetting itself and kicks off all users

I have a Dlink-DIR-632A router that is running DD-WRT v24-sp2 and ever since I got the linksys WUSB6300 AC1200 USB 3.0 wireless adapter it has been randomly resetting and kicking off all users for ...
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1answer
28 views

TP Link TD-W8968 how to view data statistics based on ip

I have a tp link modem and multiple device connected to it. I want to see which device is eating up all the bandwidth and crossing my data limit. How can I see that? I have my mobile phone, pc, ...
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1answer
27 views

tracert shows all hops slow, and last hop three times, how can this be explained?

Very slow network today, so ran a tracert and got the following, which I don't understand, and hope someone can explain. There are two aspects I do not understand. One of them is how can all the ...
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1answer
45 views

How does a IP packet from a remote server “find” a home computer behind a NAT firewall?

I understand communication between a remote machine, e.g. a webserver and users home computer/device can only occur if the users computer initiates the communication (assuming your firewall/network is ...
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29 views

Can't visit some websites from my house [closed]

This morning there are some websites that won’t load from my house, including stackoverflow.com and azure.microsoft.com. I have tried visiting these sites from both my computer and my phone through ...
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49 views

Periodically limited network access [closed]

For a few months I have had a very strange problem with my home network. From time to time different machines lose network access. The machine is still connected to the network and has an IP address ...
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11 views

No ethernet connection when booting Dell Optiplex 7010 on linux from USB stick or CD

I'm trying to boot a Dell Optiplex 7010 in linux (tried Ubuntu 12.04LTS on a CD and on a USB, and Fedora 19-1 from a CD) but on both cases the Ethernet interface shows "Cable Unplugged. I tried to ...
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1answer
27 views

Blocking AAAA responses for certain domains

I'm in Ireland, and my current ISP doesn't provide native IPv6 access -- even if I wanted their consumer implementation of it (which is apparently DualStack-Lite). So I'm using Hurricane Electric's ...
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0answers
21 views

Network bottleneck: D-Link DI-524 speed far below 100 Mbps

My ISP provides me with a 250/100 Mbps FTTH line which goes into a gigabit converter and from there to a D-Link DI-524 router (up to 100 Mbps). When I connect my computer directly to the converter, I ...
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32 views

How to find out where my https traffic is being blocked

I have a network of machines around the country, connecting via https to a cloud-based server through cellular modems. Only one machine has a problem connecting. When I run nmap -p 443 ...
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41 views

Why am I unable to reconnect to a Remote Desktop?

I have some home media services like pyTivo running on my Windows XP machine, but they only run when I'm logged in. While I'm on my Windows 7 machine, and I use Remote Desktop to control my Windows ...
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1answer
39 views

Do Straight Talk Wireless mobile clients change IP addresses on each request? [closed]

A user reported a problem in a mobile app we support. Our app is a native app for Android and iPhone. We searched our server application logs for users with similar problems and found that over 90% of ...
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30 views

how to get IP history of an network connected computer

Is there any way to capture the IP Address records of our system, means how many IP address and which IP has been used by our system from DHCP in last 10 days, lease period assume as 1 hour
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1answer
7 views

Networking: fallback failed requests to another network interface

I'm on a linux workstation behind a microsoft proxy server so I've installed cntlm to handle proxy authentication. Now I want to add some more complexity; I want failed requests to use another ...
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36 views

Multi-Gateway Routing - Fedora Kernel 3.17 & 3.18

I know the discussions on multi-gateway source (policy-based) routing have been hashed many times, but am yet find an answer to my current problem. The server (running Fedora 21, Kernel 3.17 or 3.18) ...
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1answer
32 views

How to synchronise duplicate RTP streaming with VLC?

I would like to use VLC in order to stream an audio file from a server to several clients over an IP network. Both the server and the clients are running Linux. Here is my try for two clients: Server ...
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2answers
24 views

NAT and UDP source port

My question is somewhat extending on this discussion: NAT and UDP replies Scenario: Machine A behind NAT Machine B on the internet machine A:Port M sends a UDP packet to Machine B:PortN Machine ...
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1answer
21 views

configure router for DNS queries for specific domain

I want to configure my Netgear N-150 router so that it answers DNS queries within the LAN. This is in context of running different kinds of servers: e-mail, news, web or VoIP from home. Nothing is ...
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2answers
37 views

OSX ssh: Connection closed by [IP]

So when I try to ssh from one of my mac to another mac like this: ssh root@macpro.local I get: Connection closed by 192.168.1.64 I tried: ssh -vvv root@macpro.local and get: OpenSSH_6.2p2, ...
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0answers
32 views

How to calculate bandwidth usage for RDP

I'm looking to calculate the actual amount of data sent and received for RDP for a given session. Just trying to figure out, given a typical hour or day of usage, how much bandwidth I would use if I ...
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1answer
30 views

Is it possible I would get hacked by using DNS service? [closed]

I heard some people say, it’s possible that some hackers can access PCs while using public DNS service because they’ll be vulnerable to them. However, paid DNS service requires credentials, so it’s ...
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2answers
72 views

OSX: ssh: Could not resolve hostname: nodename nor servname provided, or not known

There are two mac hosts in my Wi-Fi network (laptop and Desktop) I'm trying to ssh laptop from Desktop - everything works fine When I'm trying to ssh from laptop to Desktop doing this: ssh ...
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1answer
37 views

Is it OK to have kerberos-sec port open to the Internet in Mac OS X?

I’ve just bought my first Mac I want to connect it directly to the Internet in a colocation facility. Running nmap against it shows: Starting Nmap 6.40 ( http://nmap.org ) at 2015-02-18 21:54 GMT ...
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29 views

Find network path of shared drive on Mac OS X Yosemite

I have two Time Capsules, that are currently located on a different network (one is directly connected to the WAN, the other is behind the first one), that are mounted on my MacBook Pro using Back to ...
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13 views

Make socat listen on both IPv4 and IPv6 stacks

Switched providers the other day, they only assign DSlite-connections. I'm fine, I thought. Thing is - I want to access some of my stuff from outside of my network, which should be of much less a ...
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24 views

Windows 7 PC claims “not connected to network” even though it is

I'm having trouble accessing my LAN from my connected computer. I have mapped drives on the LAN that my computer can access, and it shows a wireless connection to the correct wireless LAN. However, ...
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2answers
31 views

Access FTP from outside the LAN

I've a Centos Server. If login via the private IP while in the LAN, I can connect to FTP. If I try to login when outside the LAN, I receive a timeout error. iptables is not configured, so it ...
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9 views

No outgoing traffic through passthrough network adapter (NIC ) on KVM guest

I have KVM host operated under CentOS 7 and guest with Windows 7 on it. Host NIC is passed to the guest as PCI device passthrough (not bridge, not NAT). Guest detects the NIC (drivers, cable plug, ...
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29 views

AD Dynamic DNS not working with Linux IPv6 [migrated]

I have an AD DNS/DHCP enabled server. I have mixed Windows and Linux machines/servers. IPv4 is working great with DNS/DHCP, even for the Linux systems. IPv6 is working great except that it won't ...