Questions tagged [networking]

For questions on connecting devices together so that they can communicate with each other, as well as questions on networking equipment such as routers and switches.

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Route all packets on port 80 from inside a vm to kali linux on another vm

I'm trying to route all packets on port 80 to kali linux so that I can ssl strip them but I cannot see to setup the iptables correctly to force all the packets to go to my other Vm. [ Virtual Machine ...
user381880's user avatar
1 vote
1 answer
1k views

Using two lan cards, VPN

I am using a VPN software (Private Internet Access), which is installed in my PC and it works fine. But i need to use the converted internet connection on a device like xbox. it was configured a while ...
ShArp EdGe's user avatar
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1k views

What do I need to do to make IPv6 devices globally accessible using Uverse 6rd?

Summary: With UVerse's 6rd implementation, do I need to buy/install/configure a compatible wireless router in the DMZ to properly handle the IPv6 traffic in both directions (incoming connections too)? ...
Othermusketeer's user avatar
1 vote
0 answers
48 views

how to use HTTP over all computer? on windows and ubuntu

I'm using a HTTP proxy on firefox, something like proxy.mit.it:8080. I can use firefox to access network. Now I hope other applications on my laptop can also use the proxy to access internet. I ...
lily's user avatar
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Port remains blocked after opening

I have a TP-Link WR841ND Router. To test a server, I've had to open port 69. When the router is connected to my internet at home, and I do the router's routine of opening a port (I know how, have ...
Roland's user avatar
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7k views

CentOS 7 can't get IPv4 address from DHCP server

I have classroom full of computer running CentOS 7 and only one computer can't get IPv4 address from DHCP server during boot, because NIC is not yet up, when dhcp client tries to get IPv4 address from ...
JiriHnidek's user avatar
1 vote
2 answers
3k views

Batch file for configuring the ip address and removing it

My pc has a network configuration IP- 192.168.0.99 192.168.4.20 Mask- 255.255.255.0 255.255.255.0 Gateway- 192.168.0.1 192.168.4.1 I am connecting to the internet through the ...
Anbu's user avatar
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527 views

netperf udp with small packets on 10g link is bounded by ksoftirqd

I want to fill a 10Gbps link with very small udp packets (64B). I use the following command for i in 1 2 3 4 5 6 7 8; do netperf -H 192.168.56.2 -p 12865 -t UDP_STREAM -l 60 -C -c -- -m 64 -s 16M -...
Masood_mj's user avatar
  • 123
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0 answers
225 views

Adding a static route for gmail?

I have my PC (windows7) on two networks - WiFi Hotspot and LAN at the same time. I would like to add a route on my PC such that requests to gmail go to the Wifi Hotspot and everything else to LAN ...
Jay 's user avatar
  • 171
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1 answer
6k views

Installing Windows 7 using Serva fails with error 3

I have an old Toshiba laptop which does not have CD Rom and also it does not support boot from USB. I want to install Windows 7 in it. After some searching, i came to know that i can install it using ...
Programmer's user avatar
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736 views

Extremely slow connection on LAN for Readynas NV+ v2 NAS

I am experiencing extremely slow upload rates on a Readynas NV+v2 NAS. Speed measurement When testing using speedtest-cli I get the following result: Testing download speed.............................
user3187331's user avatar
1 vote
1 answer
245 views

Tracking down the cause of loss of network connectivity

I have been having issues with short (seconds, but long enough to break a TCP connection) periods of loss of internet connectivity. I have tracked this down to what appears to be an actual loss of ...
Fire Lancer's user avatar
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128 views

Dynamic Routes at Home Router

I am currently using a linux box as my home router (PPPoE to my ISP and NAT, etc). Some websites are blocked in my country (don't say the name out loud), so I have another PPP in my router to a VPN ...
guoger's user avatar
  • 139
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1 answer
1k views

Setup Switch HP 1810-8G - Internet connection with several VLANs

I'm newby to this, indulge me. We bought a new HP switch with VLAN. The goal is to have two separate VLANs. The first port is for the router/internet connection. I've two groups ( A, B ) using the ...
ic3's user avatar
  • 111
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0 answers
216 views

How can I limit connections from any IPs but localhost using xinetd?

There is a xinetd service. Users connect to it from their workstations. How can I limit them to use only one connection per IP, but keep unlimited connections from localhost? I know there is ...
borism's user avatar
  • 11
1 vote
1 answer
660 views

How can I debug IOZONE over the network?

I'm working on a mac and I have a vm running ubuntu server. I created a file vm_client.iozone that looks like: vm /path/to/test /usr/bin/iozone I have configured iozone to work over ssh using ...
ordahan's user avatar
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116 views

DNSSEC- Client software

I'm interested in running DNSSEC, not sure how this works. Does DNSSEC need to be supported both on the client and server. I currently have DNSSEC on my domain hosting site and the VPS server but if ...
user3590149's user avatar
1 vote
0 answers
217 views

Create bridge (eth0-wlan0) using my laptop

Okay. I might be asking this again but none of the answers solved my problem. I have a PC A which has eth0 (192.168.1.28/24) connected to another machine B's eth1 (192.168.1.11/24). A has another ...
mihirj's user avatar
  • 111
1 vote
1 answer
2k views

How do I add a network user into my file permissions?

I have a folder (in particular, a "User Home" folder) that I would like to give access to a local account. For example, My laptop's local name is called "PC", for some apparent reason. It is also ...
aytimothy's user avatar
  • 137
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1 answer
2k views

Internal web server not accessible through my organisation's proxy server.Help needed [closed]

Normally to access any website through my college's internet we need to set proxy and port.But now i have created an internal server to host some competitions for students. But to access that server ...
kalimba's user avatar
  • 113
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0 answers
52 views

Win 8: Folder copies to network drive, but the files in it don't copy

I can transfer files between my network drive and my Win 8 computer, but if I drag a folder from my computer to the drive, the folder is empty on the Network drive. My XP computer can do this ...
Eric's user avatar
  • 11
1 vote
1 answer
2k views

How to connect 2 home routers to connect 2 separate networks?

I don't know if it's a silly question, but I'm not very good at networking. So please help me out. I have a Netgear WNDR4500, and I configured my PCs and virtual machines setting the WNDR4500 (192....
atiyar's user avatar
  • 229
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0 answers
672 views

Accessing Servers without Port Forwarding

So I'm stuck in a conundrum. I can't buy a server, and I'm stuck with this ISP who refuses to give me a new router. They have given me a ZTE Router (ISP is Cincinnati Bell FiOptics (great speeds ...
Brandan Palmer's user avatar
1 vote
0 answers
616 views

Can network sniffing in promisc mode on a network bridge produce "false" TCP retransmissions?

I have a Wireshark log from a computer that was running Ubuntu and tshark. The computer has two NICs and I've connected them to a bridge (using /etc/network/interfaces) and gave that bridge a static ...
Martin Pecka's user avatar
1 vote
0 answers
138 views

pppd retry issue with multiple wan interfaces

I am using two wan connections in my router with linux kernel 2.6.21. PPPOE Ethernet cable and 3G connection. Both need ppp setup. But boot sequence is different for both. many times 3G disconnect and ...
coder007's user avatar
  • 111
1 vote
2 answers
2k views

sudden,but relatively brief lag spikes over wifi?

Over wireless the network speed is pretty good, but there are times when suddenly it will act very strained for a few seconds, then happily hop back to it's normal speed. It's not as noticeable web ...
user16973's user avatar
  • 273
1 vote
1 answer
1k views

Issue using 802.11ac at gigabit speeds and WMM on Macbook Pro

The router is a Netgear r6250 (ac1600). When I enable the WMM (Wireless Multimedia) setting, which allows the full bandwidth of ac, and the computer is for instance streaming online video, or video ...
user52470's user avatar
  • 133
1 vote
0 answers
966 views

Two networks with same SSID, different credentials

(Laptop running W7.) We have a wireless network all around the campus with SSID X, which requires credentials Y. The same wireless network exists in my faculty (at least the SSID is the same), where ...
Terminus's user avatar
1 vote
1 answer
2k views

How to route traffic from NIC1 to NIC2 when both NIC's are in different subnets?

I am implementing anycast ip on multiple servers which have 2 NIC's installed NIC 1 is connected to the production LAN with a subnet and a Default Gateway (automatic registration in DNS enabled for ...
Rene's user avatar
  • 11
1 vote
1 answer
175 views

How to setup AirPort Extreme 802.11n to connect to my wifi and share its ports?

Is there any way to force my AP Extreme to act as an wifi client and share it´s ethernet ports? This is no problem with my AP express, but I want to utilize the gigabit ports and switch capabilities ...
Thomas Gude's user avatar
1 vote
1 answer
5k views

How to ssh from Linux client to OS X host without error message “ssh_exchange_identification: Connection closed by remote host”?

My LAN comprises a desktop computer running Linux (Debian Wheezy), a MacBook with OS X Mavericks, and a modem-router; ssh with Linux host and OS X client functions well - no problems connecting from ...
James Jamieson's user avatar
1 vote
2 answers
3k views

allow incoming ssh with openvpn client

I have set up an OpenVPN client on my home router. The moment the tunnel goes up, I can no longer ping my router from the internet using its WAN_IP. I would like to allow certain incoming connections (...
Matei David's user avatar
1 vote
0 answers
23 views

How to always share "Seagate Expansion" as F [duplicate]

We have 10 "Seagate Expansion" drives that we use in rotation as backup storage devices. Whenever we swap the drives over the share gets broken. Is it possible since all the drives have the same name ...
WillNZ's user avatar
  • 677
1 vote
0 answers
1k views

Signal King Mac Drivers

I've now accumulated two Wi-Fi antennas for the purpose of going on a neighbor's shared secure network. The first (an Ideaworks outdoor antenna) works ok (middling would be a kind descriptor to apply) ...
thynctank's user avatar
  • 111
1 vote
1 answer
791 views

Hacking a Bluetooth headset

So I have a Samsung HM1300 (http://www.samsung.com/us/mobile/cell-phones-accessories/BHM1300NBACSTA). I would like to hack this device, and transmit the button data from the call button for something ...
tabchas's user avatar
  • 111
1 vote
0 answers
474 views

Comcast Connection Suffers - No Explanation

I was hoping someone might have a clue as to what's causing my Internet problem, since Comcast is clueless, despite two visits from “technicians”. I am seeking some advice as to what I can tell ...
Tom Baxter's user avatar
1 vote
1 answer
149 views

Windows 8.1: Windows + I, then clicking on network, does nothing

I'm running Windows 8.1 and occasionally have noticed the following: 1. I press Windows + I to bring up the charm 2. I then press the network icon (in my case the wireless symbol) to bring up the ...
Dave's user avatar
  • 13
1 vote
0 answers
935 views

ubuntu 14.04 traffic shaping

Traffic shaping using htb and tc does not give expected results for shaping. Hi I am using the script from shaping $TC class add dev $IF parent 1: classid 1:1 htb rate $DNLD When I specify 0.5mbit ...
Pavan K's user avatar
  • 257
1 vote
0 answers
57 views

Share local area connection with multiple TAPs

I'm setting up an VPN server. In this server I want to have 2 different encryptions (1024, 2048), each one in different ports. So I created 2 TAP adapters, and shared the local area connection with ...
user2864778's user avatar
1 vote
1 answer
204 views

Bridge wireless networks

Ive got a BTHomehub3 down two floors, and I'd like to broadcast with a Netgear jwnr2010v5 upstairs by running a lan cable upstairs for the specific reason of gain access to a file hosted on a desktop ...
Michael's user avatar
  • 11
1 vote
0 answers
137 views

Internet connection dropped when nat created and routed via vpn [linux+iptables]

I've got a very frustrating network issue. Currently I'm living in a hotel in which I need to authenticate through a website in order to obtain internet access. I've also got xbox360 that I want to ...
Magister's user avatar
1 vote
2 answers
628 views

How to use 2 Local Area Connections at the same time

I am trying to use 2 LAC (Local Area Connections) effectively, one is from my cable (router) and the other coming from my SmartPhone's internet. I got to the point that I can use one of the LAC at the ...
Shaked's user avatar
  • 13
1 vote
0 answers
896 views

Can't ping over VPN from Virtual Machine in Azure

I've setup a VPN connection from Azure to my local network. I can ping an Azure machine from my local network, but cannot ping a local machine from my Azure network. I've got the firewall on my ...
Mike Malter's user avatar
1 vote
1 answer
41 views

Notebook with windows 7 can't connect to Wireless on certain hours

I've been experiencing this problem with Windows 7: when in certain hours of the night (usually between 21 and 00 pm), my notebook loses its connection and simply cannot connect to the wireless ...
Alberto A's user avatar
  • 111
1 vote
1 answer
167 views

Cannot connect to eth0 using static configuration

My router broke, so I am trying to set up a wired connection using eth0. I am using Crunchbang Waldorf, which is Debian based. I put the correct settings in /etc/network/interfaces and I also created ...
Cristi Mocanu's user avatar
1 vote
0 answers
468 views

Windows Server 2012 R2 - Unstable network connection

I have a problem in my computer clients that are connected in my windows server 2012 R2. I have 30 client computers and sometimes other computers are not connected in my domain. For example 28 ...
LittleGeek's user avatar
1 vote
1 answer
1k views

Photo Organizer that works from many computers to one file server

I have a file server in the closet. It runs Ubuntu, and exports my photo library as NFS4 and SMB. I have children and a wife who all also want access to these photos. Right now, the archive has the ...
Jon Watte's user avatar
  • 845
1 vote
1 answer
364 views

Is is possible to exclude a range of IPs from being included in the DNS resolver cache?

Our network has a number of systems that are dynamically allocated IPs (which happen to be in the public range). These systems also have a local hostname, which is making it into the DNS resolver ...
Dan's user avatar
  • 324
1 vote
2 answers
6k views

why am i getting 11mbps on a wireless-n network? [duplicate]

I have a "Linksys AC1200" router which supports 802.11ac and I have a Dell Latitude (with Win7) with a "Dell Wireless 1504 802.11b/g/n (2.4GHz)" network adapter. Since 802.11ac is backwards compatible ...
neubert's user avatar
  • 7,102
1 vote
0 answers
5k views

Synology NAS (DSM 5) cannot access the Internet through Tomato router?

I have just revived my Linksys E3200 router by upgrading it to Tomato 1.28 (Shibby). I have a Synology NAS running DSM 5 attached by cable to the router. After the upgrade my NAS can no longer update ...
Chau's user avatar
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