hardware (or its representation by software) that connects a computing device (host) to a computer network (net)

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How to make an iproute2 bridge setup permanent?

I've set up an archlinux inside a Oracle Virtual Box. To be able to reach the VM from the LAN I have added a bridge adapter and configured the guest system following the instructions from the Arch ...
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1answer
45 views

How to have a device's IP discovered in a network in a simple manner?

At the startup I work, we're setting up a device for image capturing and analysis. It's a box with a camera, with ubuntu linux embedded, and, let's assume, we don't want to connect a monitor to this ...
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30 views

“link is not ready” error, vanishing network interfaces

I recently had a weird problem when trying to use airmon-ng. Here is its description: First, I plug in my USB WLAN adapter, and type ifconfig. Everything goes well and I see all interfaces are ...
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1answer
19 views

Multiple network interfaces and airmon-ng

Before using airmon-ng on a network interface, you now have to do : airmon-ng check kill This is essential in order to be able to put any interface in monitor mode, but it stops the service ...
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1answer
21 views

How to manage network adapters?

Let's pretend i have two wireless adapters, one is usb and one is pci and they are named wlan0 and wlan1. Is there an easy (and graphical, if possible) way to force applications to use one adapter or ...
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1answer
57 views

Cannot bring up wifi interfaces on Kali Linux

I'm running Kali-Rolling (2016.1) on a VMWare Workstation. Installed compat-wireless-2.6, and now it also displays wlan0 (card) & wlan1 (USB) as managed, but I can't find the way to make WiFi to ...
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1answer
22 views

Using udev rules to let everyone set ip address to a network interface

I want to let everyone on the system to be able to change the ip address of a network interface. I have wrote a rule in /etc/udev/rules.d like this: SUBSYSTEM=="net", ...
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7 views

My VPS change exit IP for second alias of eth interface

If a problem with one VPS (KBM model) VPs has a network ifconfig eth0 Link encap:Ethernet HWaddr 2a:0f:71:ac:45:c4 inet addr:92.121.226.49 Bcast:92.121.226.63 Mask:255.255.255.240 ...
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1answer
29 views

linux how to config route etc/network/interfaces?

how to config route in etc/network/interfaces ? i want add 3 route in eth0 and eth1 i have try to configure like this: auto lo iface lo inet loopback auto eth0 iface eth0 inet static ...
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12 views

Create Network Interface That Redirects All Traffic to Actual Interface

I would like to create a network interface on my Arch Linux host for a VM to use (probably QEMU) so I can use iptables to firewall all network traffic in/out of the VM. The interface should send all ...
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1answer
38 views

PPPoE not working as Hotplug in particular conditions (Realtek 8169 NIC and Kernel 3.x)

I always used static ip or dhcp configurations in past, and this is what normally happens: when I pull out the cable my interface goes down when I plug back the cable the interface goes back up and ...
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18 views

Active-backup bond of 2x mode 4 LACP bonds

I have 2 switches and a server with 4 NICs. The switches are connected together with a LACP LAG. I'd like to have a situation where I'm able to survive a switch failure, also still have the ability ...
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1answer
44 views

How can I bridge two interfaces with ip/iproute2?

I know how to create a bridge using brctl, but I have been advised not to use this anymore, and to use iproute2 or ip instead(since brctl is deprecated presumably). Assuming this is good advice, how ...
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1answer
39 views

Detecting which application is using which network interface

Is it possible to see which application is using which network interface? For instance, if I have a wifi connection and a LAN cable, is there a way to get a clear answer "skype: eth0" or "google ...
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1answer
24 views

apache webserver connection timeout problem

I have two host machines First Host Machine running on vmware , i created virtual machine based on centos 6.7 32bit . the virtual machine has two network interfaces eth0 for public connection (NAT) ...
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1answer
17 views

How does communication between a BeagleBoneBlack occur and what is special about its mounting procedure? [closed]

If a BeagleBone is connected to a linux machine (and probably also to Windows in some form) it will identify itself somehow as a network interface card and, consequentially, will be assigned an ...
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2answers
33 views

Why can't devices connected to my wlan0 interface communicate with eth0 devices?

I'm trying to set up a Raspberry Pi running Raspbian Jessie with the following configuration: DHCP Server (isc-dhcp-server) WLAN Access Point (hostapd) Application Server (HTTP server on port 80) ...
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25 views

IP aliasing in Linux

The correct way to assign multiple ip addresses to one LAN card/NIC is ip aliasing such as eth-0:0 and eth-0:1. You would go and create separate network-scripts for each alias and assign a different ...
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2answers
33 views

adding a virtual NIC to linux

I'm using CentOS 6.5 on oracle VirtualBox. In order to gain access to the internet, I've added a second network card connected to the physical network card of my pc. I rebooted the virtual server ...
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1answer
26 views

Reset link counters

Preferably without bringing down the interface I'd like to reset interface link counters; bonus points if it can be done with iproute2 tools.
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24 views

Set Primary NIC - Fault Tolerance and Redundancy - Raspbian Wheezy

English is not my native language so please be patient. Hi to all, happy new year. I have a Raspberry Pi 2 (model B) running Wheezy (4.1.7-v7+), after a lot of help from Diederik and the community, ...
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25 views

Debian: WiFi Adapter WNDA3100V2 stopped working

I have a Debian 8.1 PC running a Web server and all of sudden it stopped accepting my WNDA3100V2 USB drive. I was not able to log remotely via ssh anymore. At home, the power was still on and the ...
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1answer
61 views

how to setup network without wicd or NetworkManager

I am working on a raspberry pi box with ubuntu(15.10) installed. It has limited memory so I want to same as much as possible. In memory usage report wicd/NetworkManager and subprocesses usage aprox ...
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31 views

Building Linux driver for a network card remotely, while being connected via the same card

I realize that the title alone sounds confusing, so let me provide the context. My current Linux machine configuration is Debian 7.9 (I need this specific version) with the default kernel 3.2, which ...
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2answers
57 views

My ethernet card does not create any `ethX` device. How can I solve it?

I am testing a new network card on Ubuntu Linux Desktop v14.04.3 LTS 64 bits. Its name is: Silicom PXG6BPi Six Port Copper Gigabit Ethernet PCI-X Bypass Server Adapter But it seems to be a ...
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21 views

Deleting / renaming a network hardware port in OS X / Darwin

This is a problem that so far no one at Apple.SE could help me with, so I'm just gonna give it a shot to ask it in a different form over here. (I hope I'm using the right SE site... or is this better ...
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23 views

What is txqueuelen equivalent for receiving in linux?

I have always wondered that txqueuelen in output of ifconfig command defines transmission queue length in linux in terms of packets which I assume get utilized in various qdisc management while ...
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1answer
45 views

Renaming Red Hat Enterprise Linux Network Interfaces

I have a virtual machine on vmware ESXi 6.0 running Red Hat Enterprise Linux 7.2. I have two network interfaces that I want to be named "eth0" and "eth1" respectively. They were originally named with ...
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1answer
100 views

Why are routes set in /etc/network/interfaces not added when the interface comes up?

Here is my interfaces file: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp auto eth0:0 iface eth0:0 inet static address 10.20.8.231 netmask 255.255.255.0 ...
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1answer
23 views

How can I tell which IP address is used to connect to another machine?

I have several computers that are multi-homed, and have different static IP addresses for each of several network connections. How can I tell which of these IP addresses is used when I'm connecting to ...
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0answers
9 views

Connecting a Redhat virtual machine to the host NIC that uses network bonds

I'm running Redhat 6.6 on severs with multiple interfaces. And I am successfully using network bonds on the interfaces to connect with the different VLANs on the existing network. The servers are ...
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4answers
61 views

Is there a simpler way to copy a file from a computer to a Raspberry Pi over Ethernet than having to manually set an IP for both computers?

Forgive me if I do not provide all the necessary details, but I will try my best. I downloaded this pdf to help me get started with using my Raspberry Pi. I wanted to copy it over to my Pi, which is ...
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1answer
23 views

how to update my network adapter? [closed]

I have a TP LINK (TG-3468) connected to one port. Whenever I format my computer and install Windows, I must update the adapter with the given CD. How can I update the adapter in Zorin OS?
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1answer
27 views

MAC id eth0 and wlan0 for flexlm servers

I am trying to set up a flexlm server. The vendor asked me to send the MAC ID of my system. I typed ifconfig. And found that there are 2 different HWaddress for eth0 and wlan0. Which one is the MAC id ...
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51 views

ARP 'ethers' file structure: pub and temp flags

What is the structure of the ARP ethers file and how do the pub and temp flags work in this context? Normally one would do 00:1b:da:4a:ea:66 192.168.1.1 but what if i want to specify the iface and ...
2
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1answer
71 views

No wifi networks show up in gnome settings

I've got a rather odd issue. I recently installed debian 8 on a Toshiba Kirabook and have some issues with the wifi. When going to the gnome wifi selection it says no networks available so I can't ...
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23 views

Connect Automatically to network with authentication Without Encryption on BeagleBone Black

I'm a new user to Linux, I develop a project in which using BeagleBone Black board with Debian, in which I need connect the board automatically to open networks detected via WIFI (authentication ...
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2answers
38 views

Show netmask using ip tool

I would like to know how to get the mask of a network interface. With ifconfig it is very simple, but I have to use the ip tool, and ip addr show is not showing me what I want. Here is an example ...
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1answer
31 views

Debian 8 not visible on network

I have a debian server connected to 1 Wi-Fi access point. Other devices at the same access point cannot FTP, SSH, and connect to apache webserver. The other devices cannot even ping Debian's IP. All ...
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2answers
135 views

Making /dev/net/tun available to qemu?

I have created a tap device (tap0) which I would like to provide as a network interface to qemu. I created the device with the following command and attached it to a network bridge I set up: tunctl ...
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19 views

Tools for exploiting hole196

Are there any tools in linux which will allow us to craft packets with forged IEEE 802.11 headers?. I was interested in it as those tools can be used to exploit hole 196 vulnerability.
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2answers
41 views

Network acting crazy… How can I know whether it's hardware?

I have a homeserver, with a built-in network card, ASRock E350M1 Motherboard. On the computer there's a Debian Jessie system on an SSD, and 4 HDDs in raid configuration for my data. I usually have ...
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0answers
24 views

Any potential problems when configure multiple NIC for isolated networks to have same subnet?

System I have an ARM Linux (kernel 3.17) for field use and it has multiple NIC, say eth0, eth1, and wlan0. On the left side, I need to use a PC0 to configure the ARM Linux so that it can change it's ...
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50 views

How to configure linux network socket for incoming broadcast packets

Ok so moving from promiscuous mode to defined code. If my LIDAR is broadcasting from 192.168.0.32 to destination 255.255.255.255 port 8308 UDP datagrams. Then what do I need to set my UDP socket in ...
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2answers
51 views

How do I know what Interface is my public interface?

I am setting up an application and it requires me to manually enter a public interface. When running sudo route it gives the following result: Kernel IP routing table Destination Gateway ...
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Why deconfiguring interfaces is a need on reboot?

When I reboot the Raspbian (Debian 7.8) it waits around 10 seconds before shutdown at "deconfiguring network interfaces" step. What would be if we make the system skip this step? Why is deconfiguring ...
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1answer
160 views

On switching from NAT to bridge, have network issues in kali 2.0

Found few similar questions but none of them are answered so re-asking a similar question. I have a vmware 12, have kali 2.0 latest installed. First I try on NAT it works great but when i switch to ...
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0answers
62 views

CentOS 7 On Thinkpad SL300 missing Wireless NIC (SOLVED)

I installed CentOS 7 on Thinkpad SL300. According to specifications on Lenovo website and linlap.com, my wireless card should be Intel somthing. What did I found with lspci is that I am using Qualcomm ...
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1answer
25 views

Base server not getting internet connectivity but guest vm's getting internet connectivity

I had a Linux Ubuntu 14 server and on that server I install virtual box and created two VMs. Issue is that Vms Are getting internet connectivity but the linux ubuntu server is not getting internet ...
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1answer
213 views

how do I use nmcli to add an IP-address to an interface?

On a CentOS 7 virtual machine, I have an interface called ens7, as shown here: [root@localhost ~]# nmcli con show NAME UUID TYPE DEVICE ...