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.
34,514
questions
1
vote
0
answers
439
views
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 ...
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 ...
1
vote
0
answers
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)? ...
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 ...
1
vote
0
answers
239
views
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 ...
1
vote
0
answers
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 ...
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 ...
1
vote
0
answers
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 -...
1
vote
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 ...
1
vote
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 ...
1
vote
0
answers
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.............................
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 ...
1
vote
0
answers
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 ...
1
vote
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 ...
1
vote
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 ...
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 ...
1
vote
0
answers
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 ...
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 ...
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 ...
1
vote
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 ...
1
vote
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 ...
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....
1
vote
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 (...
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 ...
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) ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...