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Questions tagged [interface]

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hetzner ubuntu dns resolution not working

I created a natgateway using opnsense I created a VM in a private network which is behind the natgateway so that all internet traffic will pass through opensense into the client VM I can ping google ...
Samson's user avatar
  • 111
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0 answers
44 views

Change interface/IP service binds to

I have a few Node.JS and TypeScript application. Some uses SNMP and other internal services. None of them have any specific bind/sourceAddresssettings. I see services binding to the wrong interface ...
Henrik's user avatar
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0 answers
49 views

Packets sent to tun Interface not received by Application

i have been stuck at this problem for quite some time and just can't figure out what I am doing wrong. What I am trying to achieve is to intercept packets (IP and TCP), change their header and then ...
Vollidiotischer's user avatar
0 votes
0 answers
48 views

Is there a web frontend for cifs/smb like Synology Filestation?

I´m looking for a Web-Frontend to browse, download and upload files exported from another Server via SMB. It has to offer ldap/AD-login for Users and honor the permissions from the Share. I know most ...
Jochen's user avatar
  • 1
2 votes
1 answer
580 views

Unable to establish link between Mikrotik router and Mellanox NIC

I am trying to establish a 25 GbE link between Mikrotik CCR2004-1G-12S+2XS router and a server running Windows Server 2022 with Mellanox NIC (MCX512A-ADAT). For cabling, I tried using the official ...
Vilican's user avatar
  • 129
2 votes
0 answers
1k views

How to delete utun0 in my macos?

ifconfig: utun0: flags=8050<POINTOPOINT,RUNNING,MULTICAST> mtu 1380 inet6 fe80::a3d5:45cd:d66b:6bd5%utun0 prefixlen 64 scopeid 0x12 nd6 options=201<PERFORMNUD,DAD> route: fe80::a3d5:45cd:...
Jun x's user avatar
  • 21
1 vote
0 answers
699 views

Configure Secondary Interface on EC2 using Ubuntu 22.04

I have launched a EC2 instance having OS Ubuntu 22.04 which has a primary interface ens5 I have attached a secondary Interface ens6. This is the output of ifconfig -a root@ip-172-31-7-213:/home/ubuntu#...
ph3ro's user avatar
  • 145
0 votes
1 answer
421 views

iproute2 and netplan configuration

I want to use 2 network interfaces, each one has its own default gateway, at the same time. I found on google that iproute2 program could solve my problem but I also have to config netplan in order to ...
God of Money's user avatar
1 vote
2 answers
1k views

Predictable network interface names not showing up

I seem to have the opposite problem of the internet. When you search for predictable network names not working all you find for the love of god is how to go back to wlan0, eth0 etc and disable it. I ...
nEmai's user avatar
  • 23
0 votes
1 answer
469 views

what is the meaning of inteface speed -1?

I have a physical server with 6 interfaces: eno1, eno2, eno3, eno4, eno49, and eno50. The eno49 and eno50 are up and when I check their capacity for example with ethtool eno49 or from cat /sys/class/...
mona moghadampanah's user avatar
0 votes
1 answer
111 views

Best practice for preferring the network interface that actually has internet?

I have an embedded device where I have three network connections, eth0, wwan0, and wlan0. wwan0 is a metered connection, so I would generally prefer eth0 or wlan0. The problem is that at any given ...
bob mcgrath's user avatar
0 votes
0 answers
2k views

how to configure a network interface on ubuntu server 22.04 lts?

I would like to configure the ethernet network interface of a server but I am completely lost. I saw on the internet that you could do it with the nmcli tool but also with netplan, I saw some people ...
Karichi's user avatar
2 votes
2 answers
1k views

qemu commandline can't see /dev/net/tun

i am newbie with qemu and libvirt. I hit the issue with virsh and qemu, especially with tun interface setup. Once i run qemu-system-x86_64 \ -nographic -enable-kvm \ -cpu host -m 2048 \ -...
raphaelnadal's user avatar
0 votes
1 answer
161 views

How to ping backup interface?

this is my network configuration: bond interface 192.168.101.50/24 has two salaves: eth1 (192.168.101.1) that is connected to 192.168.101.2 and eth2 (192.168.101.10) that is connected to 192.168.101....
raffaeledp's user avatar
0 votes
0 answers
603 views

Routing table for 2 interfaces

I have the following interfaces eth0 192.168.1.178 subnet mask 255.255.255.0 default gateway 192.168.1.1 eth1 10.4.0.6 subnet mask 255.255.255.252 default gateway 10.4.0.5 I want eth1 only can ...
c_c's user avatar
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0 votes
1 answer
2k views

I am creating a tun interface with sudo ip tuntap add dev <interface_name> mod tun, but it's not receiving packets when I ping it?

Here are my command when I set up the interface: sudo ip tuntap add dev router0 mod tun sudo ip addr add 10.0.0.138/24 dev router0 sudo ip link set dev router0 up Here is the output of ip addr show ...
Happy Jerry's user avatar
0 votes
0 answers
2k views

Server network interface not working properly

I recently bought a ZT Openrack server from eBay (the seller mentioned it was a OCP server) planning to use it as a simple file server, and it arrived a few weeks ago. However, it appeared to not ...
mmcjimsey26's user avatar
0 votes
1 answer
257 views

Redirect specific traffic through a VPN interface

I, I would like to redirect specific ports through a specific interface. Until now what I accomplished it was cat /etc/iproute2/rt_tables | grep "200 force.route" > /dev/null if [ $? != ...
Ricardo Matos's user avatar
0 votes
0 answers
462 views

Adding IPv6 interface into ifconfig worked but host unreachable when use it

I have VPS run on Ubuntu 20.04, I was asking to Customer Service of my VPS Provider, she said their service (VPS) currently is not supporting IPv6. Since she is not technical support, I believe my VPS ...
Muhammad Ikhwan Perwira's user avatar
1 vote
1 answer
206 views

Ansible populating a variable based on a json param with a json param

I have a variable containing json: { "ansible_facts": { "ansible_network_resources": { "interfaces": [ { "...
raw's user avatar
  • 91
0 votes
0 answers
2k views

Configuration of enp0s3, enp0s8 interfaces on Centos

I'm looking forward for assistance to configure interface enp0s3 which shall be used for client connection. As well as enp0s8 interface which one is dedicated for administration purposes. Currently ...
Server_AS's user avatar
1 vote
0 answers
55 views

Unable to make two docker containers communicate

I am trying to make two containers communicates on a server like it is working on my machine. The thing is that they are not able to communicate (trying to ping container B from container A) I first ...
Gabin Legrand's user avatar
0 votes
0 answers
761 views

Docker macvlan with second interface

I currently have two NICs ens192 10.0.0.0/24 and ens224 10.10.0.0/24. Currently docker is using ens192. I have a few containers that I would like to use ens224 so their traffic would be routed through ...
KB1RCC's user avatar
  • 1
1 vote
1 answer
3k views

Interface following a link

A machine with debian 10. It has 3 interfaces with different ip. One of them is needed in rare cases, it has a static route to the management network (the rest of the routing works via ospf through ...
Mystic's user avatar
  • 23
0 votes
0 answers
214 views

How to configure Fedora 34 with three NICs and three subnets to route traffic?

I have a Fedora 34 linux and it has a physical ethernet interface (NIC3), a physical wifi interface (NIC2) and an USB/Ethernet interface (NIC1) (USB LTE Dongle). I would like to use the NIC3 to route ...
supi007's user avatar
  • 96
0 votes
1 answer
1k views

Debian 10, cant use 2 Network Interfaces at the same time

Problem and explanation: What I want to do: Setting up the interfaces, so all can be used at the same time. Problem: I got 3 Interfaces in total. 1 is the LAN Connection and 2 are LTE Connections ...
manique's user avatar
0 votes
0 answers
219 views

One interface take all the IP addresses and the other one use none

I built my first custom kernel and have a few problem with it (see this other post). I configured with /etc/network/interfaces one ip address on each physical interface of the computer. The commande ...
molik's user avatar
  • 89
1 vote
1 answer
1k views

How should i debug a Microsoft CIM that fails because MSFT_NetRoute be "not found"?

In general, how should one debug a failure related to CmdletizationQuery_NotFound messages, and why would the MSFT_NetRoute based queries register such an error? Details Specifically, my Kubernetes ...
jayunit100's user avatar
0 votes
1 answer
4k views

How to run DHCPcd on interface eth1 only [closed]

I have several network interfaces - eth0, eth1. ETH0 is connected to the isolated local network (with switch) and has 2 static IP addresses. It was configured using /etc/network/interfaces file and ...
Oleksii's user avatar
  • 103
2 votes
1 answer
2k views

libreswan configure virtual interface for ipsec traffic

Description: I am learning how to configure ipsec with libreswan. I want to set up a host-to-host vpn between two hosts. I want each host to use a virtual interface for their ipsec tunnel. Problem: I ...
Dave's user avatar
  • 346
-2 votes
1 answer
125 views

Can we have multiple IP addresses with different Net IDs on an interface? [closed]

Can we have multiple IP addresses with different Net IDs on an interface? Like a Network Card? For example setting up 192.168.1.2 and 18.170.2.5 on the same network card. If yes, where do we use this ...
BlueBlue's user avatar
0 votes
0 answers
299 views

Add IPV6 range / block on network debian configuration

I am configuring a network interface on my server, editing this file /etc/network/interfaces.d/50-cloud-init.cfg I need to have a list of IP address configured which all are in the same ip-block. For ...
Poyoman's user avatar
  • 141
2 votes
1 answer
256 views

Windows disable NIC as if it were unplugged

I have noticed a distinct difference in Windows (10) between administratively disabling a network interface, and physically unplugging the connection. I am not exactly sure how to describe the ...
lampwins's user avatar
  • 185
0 votes
1 answer
290 views

Using netns to force Java application use specify IP

My VPS provider assigned 4 IPv4 to my vps. However, This assigned to single NIC, and VLAN not working(Maybe it is my configuration problem). If I try using VLAN, I can't get external network using ...
Hoto Cocoa's user avatar
0 votes
1 answer
764 views

GUI Interface for ACL (Cisco)

Are there any interface (GUI) software to manage ACL? Using Cisco ACL, but it's hard to manage with command line. Any ideas? Basically, need a software tool to manage ACL permissions with GUI instead ...
Denis Kviatkovskij's user avatar
0 votes
2 answers
594 views

network interface packets count vs bytes [closed]

I am looking at RX and TX stats taken from my ADSL modem/router (DLink DSL-2750B). I can't figure out how to make sense of the RX/TX packets vs RX/TX bytes. br0 Link encap:Ethernet HWaddr ...
mpalmier73's user avatar
1 vote
1 answer
2k views

Zabbix server and client with 2 IP-addresses

Zabbix server-5, Debian 10.4. Data from remote hosts are collected via Zabbix Proxy ( zbp1 ). Scheme of connection is on image below. Remote host connects via his ISP #1 to main office using VPN-...
Someone's user avatar
  • 169
1 vote
0 answers
137 views

Handle 2 routes to the same destination simultaneously

I setup on my machine 2 different routes on 2 different interfaces to reach a single destination. When I ping a machine on that destination network, the packet go through the route with the highest ...
sshmaxime's user avatar
  • 111
0 votes
1 answer
1k views

Can't configure a network interface by entries in different files inside /etc/network/interfaces.d

I want to configure a vlan interface by using a file in /etc/network/interfaces.d/, e.g. vlan1cfg: auto vlan1 iface vlan1 inet static address <some addr> netmask <some mask> ...
wohauser's user avatar
0 votes
1 answer
348 views

what does the network parameter mean or do in /etc/network/interfaces

I've seen following configuration that gives me a bit of a headache iface ens192 inet static address 10.27.202.21 netmask 255.255.255.0 network 10.2.0.0 broadcast 10.27.0.255 ...
cernoel's user avatar
1 vote
1 answer
3k views

linux ens4 network interface stop and start [closed]

When i use ifconfig ens4 down and ifconfig ens4 up in the google vm the connection does not return and remains down sudo -s apt install screen screen -s test sh start.sh ctrl + a + d echo "1&...
Escanor Nanatsu no Taizai's user avatar
-2 votes
1 answer
257 views

Virtual network interface in Windows

i am trying to setup a VPN server tunnel on my windows PC so that i can connect to it using remote client VPN hence routing traffic through that tunnel client = android
invisible prince's user avatar
1 vote
2 answers
2k views

Multiple interfaces on one NIC

I managed to install Debian on my Banana Pi R2. This device has two physical NICs: one for WAN (1 port), one for LAN (4 ports). eth0 eth1 if I run ip address, I can see, that there are multiple ...
TheClockTwister's user avatar
1 vote
0 answers
59 views

"tunX" interface device sequence is incrementing with every "ssh" connection

We use ssh -w connection to create tunnels from client workstations to the server. -w creates a tunnel interface for that particular ssh connection. On the server side I noticed every time ssh re-...
oᴉɹǝɥɔ's user avatar
0 votes
1 answer
2k views

Windows Firewall - Block all incoming traffic on Interface 1

I have a Windows Server (2019) with two interfaces. The first Interface is for Internet access only and the second for management only. Now I want to block all incoming connections on the first ...
user avatar
-1 votes
1 answer
228 views

iLO Interface connections of storage device in the server rack [closed]

I have a setup of 3 racks. In each there are 2 storage server (HP DL560 GEN8) and 4 compute server (HP DL360 GEN8) and 2 control planes (HP DL360 GEN8) and on top of the rack 2 patch panels. Above all ...
Turan 's user avatar
  • 11
1 vote
1 answer
526 views

Configuration to use choose the hardware interface for the request?

I have a linux machine (Debian 10 based OS), with 3 hardware interfaces connected to the internet, 2 being USB modems: ifconfig gives -> eth0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 ...
Ernest Dujo's user avatar
0 votes
1 answer
210 views

NAT happens before routing

I am currently building a private cloud cluster using Proxmox. My cluster contains a head node and two compute nodes. My head node hosts a NAT server and openvpn server, and three NICs: one for ...
CybeSSK's user avatar
0 votes
0 answers
96 views

Use local interface address for firewall rule

I'm setting up a firewall for a connected device running Linux. It has a wired/wireless interface to connect to the internet in general and to open a VPN tunnel to an external server. For security ...
Philipp Burch's user avatar
1 vote
0 answers
113 views

How can I put a WiFi client and an Ethernet client to the same group?

I have wireless interface wl0 and ethernet interfaces eth0, eth1, eth2, eth3 all in the same bridge br0. Now I have to put one of the wifi clients and one ethernet client to the same group so that ...
A R's user avatar
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