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Questions tagged [ifconfig]

ifconfig is a system administration utility in Unix-like operating systems to configure, control, and query TCP/IP network interface parameters from a command line interface (CLI) or in system configuration scripts.

ifconfig (short for interface configuration) is a system administration utility in Unix-like operating systems to configure, control, and query TCP/IP network interface parameters from a command line interface (CLI) or in system configuration scripts. Ifconfig originally appeared in 4.2BSD as part of the BSD TCP/IP suite.

Source: Wikipedia.

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Why is the mac address that appears on my computer the same?

I use the 2 ethernet interface on the my system board, eth0 / eth1(usb to ethernet) like the followings. root@E3-RDP:~# ifconfig eth0 Link encap:Ethernet HWaddr ae:a1:99:48:86:79 inet addr:10.10.0.171 Bcast:10.10.0.255 Mask:255.255.255.0 inet6 addr:…
andykim
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openvpn - ifconfig parameter

What does ifconfig parameter in openvpn configuration file mean? Here is an example file: dev tun0 proto udp comp-lzo port 5073 remote 172.16.23.73 5073 ifconfig 172.17.3.41 172.17.3.43
umar14
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Netmask for point to point ip address?

In a point to point tunnel, I was able to have the same IP twice. It looks like a bug, I think that might be related to some internal representation of the netmask. It can be reproduced with the steps below. I created a tun tunnel like this: ip…
Eduardo Trápani
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ovh's fail-over ip as a gateway

I own one of OVH's VPS instances. It's located in France. I've deployed an application which connects to a service located in Poland. The problem is the service rejects any connections from foreign countries. I've acquired a faillover ip located in…
T.Dabrowski
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ip route add: RTNETLINK answers: Network is down

I'm quite new to networking and I really can't figure this out. I am trying to add a static route so that all traffic to aa.aa.aa.aa goes through eth0:0 interface root@LSW-199:~# ifconfig eth0 Link encap:Ethernet HWaddr 80:c1:6e:6f:f8:68 …
samgreeneggsham
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Allow run /sbin/ifconfig to user

So, I want to allow some user to execute ifconfig. I'd created a special group "if" and done user to own this group. And now I'm going to do "chown root:if ifconfig". But I think: What wrong thing can happen when i change group from root to if? Is…
Kirillius Labutin
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Process that consumes more bandwidth

When I do an ifconfig I see that my interfaces eth0 RX is about some Gigabytes, even I did not run any video or audio over the network nor do some peer to peer staff, please all I need is to identify which process consumes bandwidth, is there a…
Ali Mezgani
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Ubuntu 18.04 keeps creating virtual interface ens160:0, how to prevent?

I am running a Pi-hole server on Ubuntu 18.04 that for some reason keeps making a virtual interface ens160:0 user@pihole2:/etc$ ip a 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback…
MacDonals
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"ifconfig" command not found and networking tools package information needed

I have 2 questions : 1) "ifconfig" command is not found in centos 7, i tried to find in /sbin, there also command is not available. Doesn't this essential tool not included in minimal installation ( I use minimal installation of centos.) 2) What…
Praneeth
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Can two servers talk to each other via TCP by this configuration?

This is an interview question: There are two servers on Rank A, setup the network on the two hosts by following configuration: Server A: ifconfig eth0 10.10.15.129 netmask 255.255.255.0 up route add default gw 10.10.15.2 Server B: ifconfig eth0…
J JIA
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Ubuntu Server IP address not listed in ifconfig

I am not sure why the command "ifconfig" did not show my IP address, but I was still able to reach other hosts in the same network. It happens too many times to me and I did try to search but no luck to explain it. It actually does show up in "ip…
Long
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