All Questions
30 questions
1vote
0answers
43views
How can I get information which interface is used to connect a monitor?
I've got a task to write a script that displays information about which monitors are connected and which interface is used for it. The result of a script execution should look something like this: ...
- 93
0votes
1answer
314views
How to check Network Speed of specific Interface
I could test using IPERF linux Utility. But I want to specifically send/receive data on particular interface. Is there any way to do that? I tried using iperf -c server_ip -B {IP_address of my ...
3votes
1answer
205views
Why is my WiFi is always hard-blocked on my HP Pavilion G6?
I wish you could help me with this matter which is WiFi hard blocked in my Linux machine and can't get the WiFi up. My device is an HP Pavilion G6 and WiFi card is Ralink 5390; the default of the ...
4votes
1answer
3kviews
Interface groups
I started to study Linux networking system (especially Ubuntu) lately. I got interface info by command ip a like this: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group ...
- 43
1vote
1answer
2kviews
RTNETLINK "file exists" error when attempting to create veth interface that was previously a dummy
Linux Mint 20.2 I used this command to create a dummy ethernet interface called veth0: sudo ip link add veth0 type dummy Once finished I removed it with: sudo ip link delete veth0 type dummy The ...
- 13
0votes
0answers
895views
I can't state up my interface
sudo ip link output: 2: wlp1s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noqueue state DOWN mode DORMANT group default qlen 1000 link/ether 80:c5:f2:81:ca:31 brd ff:ff:ff:ff:ff:ff sudo ip link ...
2votes
1answer
4kviews
Logical Device Name assigned to Physical NIC mapping
I'm looking for a scripted solution that will show which logical network interfaces are mapped to which physical NICs. That is, if a server has 2+ interfaces and 2+ NICs, how do I know which NIC ...
0votes
2answers
8kviews
how can I change the interface ip address in linux without ifconfig command. my current interface and want to change the ip to 192.168.10.100
network: version:2 renderer : ethernets: ens160: dhcp4: no dhcp6: no address: 192.168.10.13/24 gateway4:192.168.10.1 nameservers: addresses: 142.55.100.25 142.55.44.25
- 11
3votes
1answer
12kviews
How to change network mask using ip command
I tried to change the network mask using Linux ip command and got confused. Google search doesn't clarify it either. If someone could explain? Say I have interface enp0s31f6 on my Linux machine rtuser@...
- 31
5votes
1answer
6kviews
dummy interface on linux
I need to create a second separate virtual interface on Linux. I choose dummy. And do these steps: $ cat /etc/modules-load.d/dummy.conf # Load dummy.ko at boot dummy $ cat /etc/sysconfig/network-...
- 51
0votes
0answers
111views
How to route network traffic through an interface on another host?
I have limited networking knowledge, so please bear with me :) I have a host that runs a VM that has 2 interfaces (ens33 and crc). My host has an interface (eth0) that is on the same subnet as "ens33"...
0votes
1answer
2kviews
How to Combine a Bridge with VLAN over a Bonding and Two Default Gateways
I have a Linux server with three NIC that are connected to a switch (one NIC is the management, two NIC form a LACP bonding). In addition I need to use a VLAN (167), because the switch is configured ...
- 25
1vote
0answers
4kviews
UDP send buffer error in netstat
I we are running voice application which stream UDP (RTP) packets for voice, I am investigation some strange issue where my ifconfig ens4 | grep error counter going up specifically overrun If you see ...
- 1,672
11votes
1answer
6kviews
What does "if1@if2" mean in interface name in output of "ip address" command on Ubuntu
What does at sign (@) mean in interface name in output of "ip address" command (or the "ip link" command) on Ubuntu, for example interface name "eth0@if44" in the following output: root@aafa1fc24a0b:/...
0votes
1answer
202views
Getting unexpected interfaces in CentOS 7
Suddenly getting some bulk interfaces which should not be in server. Interfaces named like as0t1,as0t2,as0t3 etc. Almost 40 interface like this has been created of which i have no idea. Actually some ...
