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Questions tagged [network-interface]

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

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NIC configuration in RHEL

I want to use a dedicated CPU for 1 NIC to achieve low-latency. I am able to isolate CPU. What option do I use in NIC configuration to use dedicated CPU in RHEL7/RHEL8?
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How can I connect from Linux computer to a network created by "USB tethering" of an Android phone?

I turned on "USB tethering" on an Android phone with mobile service, and connected the phone to a Linux computer using a USB cable. On the computer, which network interface is used for ...
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Auto detect network interface card, network init.d

I have build my LFS linux that based in this book, it's working fine and network interface card is working. Even it's configuring IP automatically with using dhcpcd service. According chapter 9 in ...
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SUSE OS 15 Service Pack 3 - How to update the name of network adapter from ens33 to eth0 with DHCP configuration

The ifconfig output shows network adapter as ens33 currently. I want to configure the system to DHCP with network adapter name as eth0. Please help. [UPDATED] I am able to update the network name by ...
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wlan0 disappears after shutting down VM

Yesterday I got a tp-link TL-WN722N. I managed to set it up correctly, and it worked fine until I shut down the VM and started it up again. wlan0 had disappeared and when I tried to set the adapter up ...
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NetworkManager not auto creating profiles for wired connections

I am running debian 11.3 x64 inside a vmware workstation 16.2. Initially the vm has only one network interface [NAT Switch of vmware] assigned. And it is working pretty well. I tried to add another ...
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Debian 11, the resolv.conf does not save nameserver settings permanently

Debian 11, I faced issue with internet connection not available, and pinging can't resolve domain names. The /etc/resolv.conf file is constantly overwritten by NetworkManager, and after reboot it ...
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How can I permanently change a network device name in CentOS8?

I want to permanently change the device name of a network interface using a portable script. The interface gets the ugly name of enp02fghjkl1. I want to give a pretty name of netface1. I have tried ...
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Networking.service active failed

I am using Kali Linux. My NetworkManager is enabled. But randomly my NetworkManager or networking.service goes down. Most of the time it's networking.service and my wifi is gone. And Then I'm unable ...
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What is the impact of routing table on curl/ping with specific network interface?

from documents, I found that we could use ping -I <interface> and curl --interface <interface> to use specific network interface to ping or curl. But from my test on Linux, it seems that ...
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Ethernet adapter in "lspci" but not available in "nmtui"

How can I activate an Ethernet adapter which is visible in lspci but otherwise not exposed? Messing around, I recently moved an SSD with a Fedora install from one computer to another. Without changing ...
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network services reachability troubleshooting

I have voyage linux on a system. It is running an apache server and an sshd. For some reason, i cannot connect to those services from another machine. There are no error logs that i have been able to ...
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Use virtual wlan iface in monitor mode with physical iface in managed mode

I want to run Open Wireless Link, but it requires my device to be in active monitor mode. I am wondering if it is possible to use a virtual interface created with mac80211_hwsim, connect that to my ...
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Get MAC address before network is ready

I created a script to set a bunch of computer hostnames to the last 8 digits of the MAC address. The MAC address is a unique number baked into every computer, so it works well. I created a systemd ...
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How to set a static IP address regardless of interface hardware in Debian?

I am using a Debian minimal OS for a small server. I want to have a storage device with full OS as a backup. So if there was any problem I will be able to swap the HDD devices. But the hardware that ...
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Bondig two NIC slow upload

I have two NIC in pc/nas: eth0 (integrated motherboard): Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/...
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What can be the reason for "non-initialised socket" & "can't resolve host name" error for ookla speedtest-cli tool?

I installed the speed test-clip tool by Ookla that was working fine last evening, but since this morning, I have been trying and it isn't working. And I get the error as shown below? What can be the ...
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OpenBSD netstart order

I have two interfaces on my VPS. One is a vio(4) interface as egress. My hostname.vio0 file is just inet autoconf up The second one is a wg(4) interface. My hostname.wg0 file contains a command at ...
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USB Tethering shows as Ethernet

I have Network Manager on my Arch Linux machine. Output of ifconfig: enp0s18f2u1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.241.167 netmask 255.255.255.0 ...
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Unable to install wifi driver after latest parrot OS update [duplicate]

When I try to install the wifi driver it shows the following error. After the latest update I am unable to install realtek rtl_8822ce driver on my parrot os sudo apt-get install git gcc make build-...
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No TX / RX information on bond interface

I create a bond interface with two members, eth1 and eth2. Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) Bonding Mode: load balancing (round-robin) MII Status: up MII Polling Interval (ms):...
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High latency of network related operations

I have a server running Debian 11 with two 1Gbps and 10Gbps uplinks respectively. When running any network related commands, I observe a very high latency at the beginning of the command execution. ...
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Unable to bring up the CANbus interface on a Beaglebone black

To automatically bring up the interface on boot, I edited the /etc/network/interfaces file as follows: debian@beaglebone:~$ sudo nano /etc/network/interfaces And added the following at the end of the ...
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No internet connection via LAN or Wifi

first time installing Kali Linux, so to be fair I don´t have much knowledge of Linux. During installation of Kali Linux my network card was not recognized by the setup and following to that, the ...
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Why does my sytem have muptiple addresses on interface wlo1?

I tried to init docker swarm Error response from daemon: could not choose an IP address to advertise since this system has multiple addresses on interface wlo1 Ok,I will advertis address. ip a ...
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DNS Resolution over Network Interface

I am trying to route specific site DNS queries through specific network interface. I have private site which is accessible only through specific network interface enp39s0 (eth) and my default internet ...
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Bonding with VLAN and bridge on Debian 11

I'm trying to configure on Linux bonding active-backup (2 physical interfaces eth2 and eth3, one is used) but also with two VLANs, and later connect it to internal bridges. I see two options for ...
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Switching from networking to netplan

I am switching from Ubuntu to Debian, but - as I can only access the VM via ssh - I very much miss the netplan try feature. Whenever I mess up the /etc/network/interfaces, I am out and need help from ...
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Ping on LL IPc4 works only few times

I came across a problem that I don't comprehend. Would someone be so kind to help me understand? I have Linux embedded devices and PC on the same link. The embedded devices have avahi-daemon and avahi-...
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Small TaskQueue shared on two computers

There are two computers with 12 physical cores each. Computer A should accept jobs and distribute them among A and B I want to setup Computers A and B such that A will accept jobs (via ssh) and ...
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How can /dev/sd* be mounted directly after rebooting?

I executed the command fdisk /dev/sd* and start partionning the disk. I set a new partition file system, then mounted the new partition to a directory that I created. For boot-up automatic running I ...
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VXLAN interface disappears

I have a CentOS 7 server with a VXLAN interface connected to a bridge. The server is using the network service. NetworkManager is not installed. This /sbin/ifup-local script sets up the VXLAN ...
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What are these unexpected network devices which appear in kernel log?

I have enp7s0 (ethernet) and wlp5s0 (wifi) that I've been using, but there's some other network interfaces that I don't recognise that keep showing periodically in dmesg. What are they, and how can I ...
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How to stop an in-tree driver/ko from binding to a device without disabling such driver

i'm having a particular in-tree device driver and i want to leave it enabled for a device (i.e. not blacking listing it for all), but just to stop it from binding to another device of a different PCI ...
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My networkmanager not working after booting into windows dual boot pc

I had a fine working dual boot pc. But few days ago I booted jnto windows. From then on parrot os I my network manager fails. Okay so I generally use parrot OS. And I was using it smoothly. But that ...
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I'm using parrot os. My realtek rtw8822ce stays connected but after every 5 min. It stops working

I'm using parrot os. My realtek rtw8822ce stays connected but after every 5 min. It stops working. Reconnecting again makes the wifi work again. Firstly I had this problem. Then I installed some ...
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(Ubuntu 20.04 LTS) Internet stops working after some time

I'm using an IdeaPad Gaming 3 15ARH05. WiFI just stops working after using it for a bit. Sometimes this happens after minutes, other times it takes hours. My other devices can connect to the modem and ...
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How to send pcap file to ethernet

I have a pcap file and need to send it to specific interface. How can I do it?
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Does "no-auto-down" and "no-scripts" support pattern matching interfaces in /etc/network/interfaces?

I tried reading the manual from https://man.cx/interfaces(5) and searching for some open-source code. But I didn't find any specific description of the option of "no-auto-down" and "no-...
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Wifi option is not showing in kali linux

I have a dual boot with windows and Kali-Linux. after installing kali Linux, the Wifi option is not showing and also not able to connect to the internet. so, not able to download any packages. after ...
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Setting a static IP address on Debian 10, any reason to set dns-nameservers, broadcast or network?

I'm setting a static IP address on Debian 10. $ vim /etc/network/interfaces auto enp1s0 iface enp1s0 inet static address x.x.x.x netmask x.x.x.x gateway x.x.x.x # broadcast x.x.x.x # ...
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dev/rfkill and PyRIC library, rfkill.py: rfkill_list() problem not all devices found

I am playing with a piece of code from : https://github.com/wraith-wireless/PyRIC/blob/master/pyric/utils/rfkill.py, trying to get rfkill_list() using Kali-linux (should be Debian rolling ... ??) #!/...
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IP Address gone but how to identify if this related to DHCP Server that Not Reachable

we have RHEL 7.6 Linux server , with the following network configuration TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=no BOOTPROTO=dhcp DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=no NAME=apl7 DEVICE=...
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eth0 configuration missing on Oracle Linux | cabled connection not working

I have installed Oracle Linux 7.9 on my laptop (not VM, just normal installation on an unused laptop). The WIFI connection works great, out of the box, no settings done beside just connecting to wifi. ...
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Debian name wifi interfaces according to their drivers using udev persistent-net.rules?

Hi I am working on Debian. Would like to name my wifi interfaces according to their driver modifying /etc/udev/rules.d/90-persistent-net.rules with: SUBSYSTEM=="net", ACTION=="add&...
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Enforce IPv4 for certain hosts

How can I enforce IPv4 to be used when accessing certain hosts? Can this be done, ideally specifying by domain names? What I tried, but am not sure if I'm going to be able to do this, is - create a ...
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How can I get TLWN725N wifi usb adapter work on Kali NetHunter

I am trying to use my TLWN725N external wireless card in monitor mode and do packet injection. I am having problems getting my TLWN725N wireless card to work with my Kali NetHunter device. My Kali ...
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Debian 11 installed but need to connect to Internet

I got Debian 11 installed on my laptop as Standard System Utils. I've been having issues with the network card that I have when installing so I couldn't connect to my network in the installation but ...
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Cannot use networking but network interfaces exist in virtual machine

I am trying to get a virtual machine with user-mode networking setup, but no networking seems to work, not even ping localhost or wget localhost. Loopback "lo", and an ethernet "eth0&...
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IP routes changing without warning

PROBLEM I am using ip route to set up routing tables for a network. Everything is working great, but after a short amount of time (minutes) I lose some of my connections. When I look at my ip route, ...
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