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

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Unable to download torrents on OS X Yosemite

I am unable to download using torrent on OS X Yosemite, but the weird part is that able to do that on a windows machine on the same network. Router reports that the port is open, but the torrent ...
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15 views

How to create ssh chain tunnel for Firefox?

I am trying to create an ssh chain tunnel for Firefox as follows: I have two remote Ubuntu server VPS's - host1 and host2. I am creating an ssh tunnel from my PC to the first host with this command: ...
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1answer
43 views

Network setup issue

I have two internet connection - one broadband connection of 8 Mbps and a lease line of 4 Mbps and CISCO 24 port switch, new dlink 600L router. Currently both this sources are plugged in Sonic fire ...
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1answer
18 views

Connect TL-WR740N via wireless to TL-WR340G/TL-WR340GD

I have a TL-WR340G/TL-WR340GD, which is already setup (DHCP, if it matters) to provide Internet over WiFi. I have a spare TL-WR740N which I would like to connect over WiFi to the WR340G. While I ...
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22 views

Is my ISP throttling my connection?

This is almost exactly related to this question: Internet Speed Slow during certain times yet that question received no answer apart from a few comments. My problem is I have ridiculous connection ...
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13 views

Guest DHCP server

I have a host (CentOS 7 with kvm/libvirt). There are 2 network interfaces on this host. eth0 and eth1. eth1 has no IP address but instead has subinterfaces for each VLAN it is connected to. An example ...
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2answers
35 views

Ubuntu 14.04 server won't route

So I am trying to set up a dual homed BRO IDS box to act as a gateway(?) server between my home network and the existing el cheapo router that came with the broadband. what I have is this... (pipes ...
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3answers
42 views

I have 100 mb internet connection but am downloading at 35 KB. What's the deal? [on hold]

I have 100 mb internet spped according to the status page in my OS. However, currently downloading at 35 KB, dial up speed?
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2answers
28 views

Are FIN packets guaranteed to arrive?

In the 4-way handshake, we have the following: FIN -------> <------- ACK <---x--- FIN (what if this packet is lost?) ACK -------> What happens if the third packet is lost, will it be ...
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1answer
18 views

SSH Server Not Responding To Connection Request

I'm attempting to set up an SSH server on my local machine using OpenSSH. When I try to SSH from a remote host into my local SSH server, the SSH server doesn't respond and the request times out. I'm ...
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0answers
12 views

How To Apply Firewall Rules to VPN Traffic Leaving A Mac Server

A Macintosh client successfully connects to the VPN service running on my Yosemite Server. They get an IPv4 address and everything appears to be working normally. Is it possible to restrict the ...
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1answer
14 views

Airport Extreme Base Station roaming network crazy ping times

I have two new AEBS' setup as a roaming network. One is in the basement (DHCP/NAT) and one in my office (ten feet away) in Bridged mode and is setup with identical SSID/PWD, etc. The issue is that I ...
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1answer
13 views

Disabled DHCP server on secondary routers, cannot access setup page anymore on those

I have the following network configuration in my home: The Telsey DSL modem+router is provided by my ISP and setup configuration page is password protected from them (not default one, I tried brute ...
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0answers
7 views

What is the best way to limit the IP addresses which can be access from within a docker container?

I have an answer which will limit docker containers to only be able to access a single IP address outside the host. Using this iptables rule on the host: iptables -I FORWARD -i docker0 ! -d 8.8.8.8 ...
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0answers
16 views

How can I use OSX to share an internet connection WITHOUT being a DHCP server?

I have a small network of single-board linux computers (beaglebone blacks running Arch if it matters) that I would like to route to the internet by way of my Macbook's wifi. There are two ...
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0answers
6 views

Masking external ip address using cmd or script on windows

I am using Windows and I want to mask my external ip address(not the "local "). using command prompt or some script, as we do in orbot on Android by swiping up in the app. i know about Tor browser ...
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0answers
12 views

Is it possible to process millions of datagrams per second with Windows?

I am investigating if I can implement an HPC app on Windows that receives small UDP multicast datagrams (mostly 100-400 Bytes) at a high rate, using a dozen or up to maybe 200 multicast groups (i.e. ...
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0answers
18 views

Request a preferred IP address for a specific WiFi connection on Windows 7

Is there a way to ask for a preferred IP address for a specific WiFi connection in Windows 7? I have no control over the router so I'm not asking for a static address, but just to request the router ...
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0answers
8 views

Dreamweaver CC - lag when editing network based files

I run several websites from a local (MS Server 2008) server, when I need to edit anything I simply access the file over the (windows) network as a shared folder. The editing PC is a normal laptop ...
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1answer
13 views

Gateway Server Jump Bastion Host Local Setup

I want to ssh to a remote private host using an intermediate (bastion, jump, gateway) server. This command works fine: ssh gateway ssh private With this ~/.ssh/config setup: Host gateway User ...
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1answer
32 views

What is the easiest way to monitor packets sent between two devices on the LAN?

I'm trying to determine the cause of a communication problem between two devices on my wifi network. I CANNOT install programs on them to determine this. What is the easiest way to monitor the traffic ...
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1answer
12 views

Changing the name of the network interfaces in Fedora 21

I am a software tester for an ethernet switch and I am sometimes working at home. On the computer I am using at work the two network interfaces are called eth0 and eth1. On my private laptop they are ...
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1answer
11 views

router “wifi module” lagging with no logcal cause

for some time now, my rouer has been giving endless issues, with lagging, first off, ROUTER: NETGEAR DGN2200v2, Devices Connected: Wifi - Android Device, 1 Windows PC; LAN - 1 Windows PC No similar ...
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1answer
16 views

WiFi router speed drop on wired and wireless connections

I have a Linksys E900 router and I also upgraded my internet to a 100Mbps connection from 30Mbps but when I'm on WiFi I'm getting a maximum speed of 37Mbps just 4-5 feet away from the router. I have ...
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1answer
23 views

DNS , NS and Mail Server configuration for website hosted on Amazon EC2

I created amazon free micro instance on EC2. And hosted my website on that server. IP like - 52.24.220.140 Problem is that , my domain registrar is Directi.com and I don't have mail hosting also ...
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1answer
17 views

Can I run Untangle or other UTM before router?

Since I read that Untangle does not work well with VLANs, I want to know if I can place the UTM before my router. My ISP provides gigabit fiber. A box outside my house converts the fiber to ethernet. ...
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1answer
19 views

SSH very slow log in after changing sshd_config, even on LAN

I am trying to get my home server to be ssh-able from the internet. Initially (before touching any config files, just doing apt-get install openssh-server i was able to connect to in while on my ...
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0answers
14 views

FortiClient on win7 in tunnel mode, but routes NOT added

Running FortiClient 5.2.x on Windows 7 premium [corp laptop]. FortiClient logs onto SSL VPN server. User then enters the tunnel and receive an IP address on work network successfully. BUT the ...
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0answers
17 views

Client not connecting to port running openssl s_server

Question Context: I want to test a TLS handshake and see all the output (for learning/work related purposes) between my local computer (running OSX Yosemite) and a remote work server (running amazon ...
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0answers
21 views

Troubleshooting SSH across networks when ICMP is not enabled

I have 5 Debian Linux servers at my main work, and a few at some of our off-site locations, and one personal one at home. I can SSH with PuTTY from Work to any of the 5 in the same building, and some ...
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0answers
15 views

Wireless not working in Kali 1.1.0 on Alienware 15

I'm new to this and i created a usb to run kali live on my Alienware 15. Once I get in, the ethernet is working fine but if I use the iwconfig command, it says "no wireless extensions" Can someone ...
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1answer
21 views

pppd, local and remote IP address are identical, no internet access

I am using a cell modem connected to an embedded linux platform and I'm setting up a data connection over the cell modem. Note that I had this working perfectly fine but I recently created a new ...
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1answer
40 views

Is the bandwidth of the router usage divided equally?

I have a router/modem NETGEAR VEGN2610 which supports QoS. Assuming there are 2 computers downloading something that requires high bandwidth (for example a movie with torrents), will the speed be ...
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0answers
9 views

VMware player - Share internet only with guest, block access to corporate network

I want to share only the internet access from host to guest VM, the guest must not see my network, if this VM reaches my corporate network it can cause a mess cause is a clone of another server and it ...
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0answers
15 views

Google Chrome gives ERR_ADDRESS_UNREACHABLE error for HTTPS page (site is perfectly reachable via curl)

A otherwise perfectly working Chrome browser gives an ERR_ADDRESS_UNREACHABLE error for a request to a https page on port 8443. The page is reachable via curl, Firefox, Safari.. How would I go about ...
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2answers
66 views

find IP address of a device

I have multiple devices connceted to HP 1910-48g. Three of them are fingerprint scanner devices. We use them for time attendance reports. Because of some problems I have to reinstall software but in ...
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1answer
49 views

Some web downloads stop part-way through

I am running Windows 7 Home Premium 64 bit. The majority of files I download complete without error, but some stop part-way through. This happens on all browsers. Some stop at a random location ...
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24 views

network swtich have itself ip configuration geteway?

example: in switch i have plugged 20 computer cables and i want that i see switch configuration and where i can see this ip ? routers have example geteway 192.168.1.1 and this is configuration ip ...
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1answer
1k views

I sometimes get lag spikes causing ping times of 200 ms; might using different (e.g. Google's) DNS servers be better?

I live in the UK and I am a heavy gamer and I get lag spikes that take my ping to 200ms. Will using a third-party DNS Service, for example the one provided by Google, rather than those provided by my ...
3
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1answer
76 views

Windows 8: Ethernet traffic blocks mouse

Strangest thing ever... Basically what happens is if I have a lot of ethernet traffic, my mouse doesn't work properly anymore. It 'feels' like the mouse signal gets 'blocked' out by network traffic. ...
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15 views

wireless and LAN network sync

I was wondering if its possible to use both my lan and wireless connections at once ... i know that it is possible from the same router but i have a different situation, i currently live in a building ...
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1answer
17 views

Troubleshooting network problems in Ubuntu Trusty Tahr

So I seem to have two problems. My first problem is that I can only intermittently ping my router from my Ubuntu Desktop (by IP address). Second, my Ubuntu Desktop intermittently fails to properly ...
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0answers
30 views

OpenWRT and Not Working WI-FI driver for MT7620

I have platform (evaluation board) with MT7620a. In this platform I must install OpenWWRT. After I succes install distribution I whant to add ,launch wi-fi module but something is wrong. I using to ...
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1answer
15 views

How do I alias a hostname in OSX?

My machine at my office is named really_long_host_name.my_company.com. I'm trying to set something up so that I can go to http://desktop and have it alias to that machine. I could do this easily in ...
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5answers
2k views

Identify an unknown IP in our network

I have a network containing 20 clients. I assigned IP range 10.0.0.1 to 10.0.0.20 to them. When I do an IP scanning I see someone using 10.0.0.131 in VMware. How can I find out which IP is this IP ...
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1answer
19 views

Retrieve internet proxy server address via PowerShell

I have to retrieve the proxy server address and port via PowerShell, so I can use the Invoke-Webrequest -uri http://some-site.com -Proxy command. The expected output should looks like ...
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0answers
9 views

AT&T Motorola NVG510 - usage in India

I have an AT&T Motorola (telephone cable) modem + wireless and was planning to use that in India, but it does not seem compatible. I keep getting the DSL Failed error. Can we use this modem ...
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0answers
17 views

OSX Terminal Start VPN Connection

I am trying to find a way to use terminal to connect to an existing VPN connection (that was created in System Preferences > Network > + VPN Type: Cisco IPSec, etc etc) instead of using the VPN ...
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0answers
15 views

Using Cell Phone Voice to Access Internet

I would like to know if it is possible to access the internet through a cell phone's voice system. This is for a windows 7 laptop. I was thinking that it may work between the laptop and a desktop ...
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0answers
22 views

How does the guest OS of VirtualBox get a valid dynamic IP address?

I have install CentOS 7 in VirtualBox, and want the guest CentOS using dynamic IP address. The network type is bridged. The host OS is Windows 7, and the network information is like this: I ...