How to check network interfaces

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JackBauer
Posts: 47
Joined: 2020/05/19 13:56:35

How to check network interfaces

Post by JackBauer » 2021/06/09 21:48:15

Hello,

How can I check the network interfaces and where the traffic is going to... I mean to which network interface.

And if something has changed recently regarding the network interfaces.

Thanks.

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TrevorH
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Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: How to check network interfaces

Post by TrevorH » 2021/06/09 22:02:31

ip route get 8.8.8.8
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke

lightman47
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Joined: 2014/05/21 20:16:00
Location: Central New York, USA

Re: How to check network interfaces

Post by lightman47 » 2021/06/09 22:06:08

One sniffer tool to watch traffic is wireshark which you'd need to install. Another is the command line tcpdump.

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jlehtone
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Joined: 2007/12/11 08:17:33
Location: Finland

Re: How to check network interfaces

Post by jlehtone » 2021/06/09 22:07:12

Overall summary of config: nmcli
Where traffic should go: ip route
How much traffic interfaces have seen: ip -s li

Get iftop from EPEL if you want more dynamic How much traffic?

Changes ... you can see only if you have two states to compare.

JackBauer
Posts: 47
Joined: 2020/05/19 13:56:35

Re: How to check network interfaces

Post by JackBauer » 2021/06/10 05:42:19

Thanks guys, will try it.

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