Re: [CentOS] How to find out what's eating the bandwidth

[Thomas Stephen Lee]

On Sun, Mar 28, 2021 at 11:06 PM Frank Cox  wrote:
>
> On Sun, 28 Mar 2021 13:14:16 -0400
> Matthew Miller wrote:
>
> > Is this a home network or a business one?
>
> It's a really basic setup "routers from Staples" (dlink and tplink brands I 
> think) plugged into the ISP's modems.
>
> > You're right that you generally can't see everything from just any computer
> > on a network, at least if it's switched. You need to watch from your
> > gateway.
>
> Then I'm outta luck for doing this sort of thing since the gateways are the 
> tplink and dlink routers.  I thought that might be the case.
>
> Thanks for the answers, guys!  It isn't what I wanted to hear,  but now I 
> know more about this than I did before.
>
> --
> MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com

One more tool.

nethogs in epel repository

dnf install nethogs
yum install nethogs

---
Lee
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] installing gnome icons

[R C]

Hello,


is there a way to install  "icons / themes" so one gets all the gnome 
icons in /usr/share/icons/gnome ?



thanks,


Ron


___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] RHEL/Centos 8 power off issue

[R C]

Hello,


I have a laptop, in a docking station. When running RHEL/Centos 7 I 
could shut it down and power it off by using 'shutdown -h now' In did a 
new install of Centos 8 (and also RHEL 8) and when I do a "shutdown -h 
now" it just reboots (behaves the same as if I'd do a reboot).



Is that a known issue?


thanks,


Ron

___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS-virt] qemu-kvm-ev: usb: out-of-bounds r/w(CVE-2020-14364)

[rj...@vip.qq.com]

I have  reported on bugzilla, link: 
https://bugzilla.redhat.com/show_bug.cgi?id=1943399; But this seems to only 
support ovirt.
Then，opened an issue on CentOS community;link: 
https://bugs.centos.org/view.php?id=18131; 
Thanks.




jasonrao
 
From: centos-virt-request
Date: 2021-03-16 20:00
To: centos-virt
Subject: CentOS-virt Digest, Vol 159, Issue 2
Send CentOS-virt mailing list submissions to
centos-virt@centos.org
 
To subscribe or unsubscribe via the World Wide Web, visit
https://lists.centos.org/mailman/listinfo/centos-virt
or, via email, send a message with subject or body 'help' to
centos-virt-requ...@centos.org
 
You can reach the person managing the list at
centos-virt-ow...@centos.org
 
When replying, please edit your Subject line so it is more specific
than "Re: Contents of CentOS-virt digest..."
 
 
Today's Topics:
 
   1. Re: qemu-kvm-ev: usb: out-of-bounds r/w(CVE-2020-14364)
  (Sandro Bonazzola)
   2. Unable to Login to AWS AMI With SSH Key - aarch64 (David Lemcoe)
   3. Re: Unable to Login to AWS AMI With SSH Key - aarch64
  (David Lemcoe)
 
 
--
 
Message: 1
Date: Mon, 15 Mar 2021 17:30:44 +0100
From: Sandro Bonazzola 
To: Discussion about the virtualization on CentOS

Subject: Re: [CentOS-virt] qemu-kvm-ev: usb: out-of-bounds
r/w(CVE-2020-14364)
Message-ID:

Content-Type: text/plain; charset="utf-8"
 
Il giorno mer 3 mar 2021 alle ore 09:56 rj...@vip.qq.com 
ha scritto:
 
> Hello
> I saw that qemu-kvm-rhev has fixed the issue, but  CentOS
> community hasn't updated the repaired version of qemu-kvm-ev;
> will it be fixed in the future?
>
 
Can you please open a BZ on
https://bugzilla.redhat.com/enter_bug.cgi?product=ovirt-distribution=qemu-kvm-ev
?
Thanks
 
 
 
> thanks
> ___
> CentOS-virt mailing list
> CentOS-virt@centos.org
> https://lists.centos.org/mailman/listinfo/centos-virt
>
 
 
-- 
 
Sandro Bonazzola
 
MANAGER, SOFTWARE ENGINEERING, EMEA R RHV
 
Red Hat EMEA 
 
sbona...@redhat.com

 
*Red Hat respects your work life balance. Therefore there is no need to
answer this email out of your office hours.*
-- next part --
An HTML attachment was scrubbed...
URL: 

 
--
 
Message: 2
Date: Mon, 15 Mar 2021 12:36:42 -0400
From: David Lemcoe 
To: centos-virt@centos.org
Subject: [CentOS-virt] Unable to Login to AWS AMI With SSH Key -
aarch64
Message-ID: <12d7b36c-db26-41d6-be8f-779153eca...@delcoe.com>
Content-Type: text/plain; charset="us-ascii"
 
When launching CentOS Stream for aarch64 in us-east-1 using the 
CentOS-sponsored AMI (ami-0a311be1169cd6581, found at 
https://wiki.centos.org/Cloud/AWS ) I am 
able to launch the EC2 instance using a Gravitron2 processor, as expected. 
However, when attempting to login to that instance, I get a password prompt for 
the ec2-user, centos, and root users. 
 
This behavior is not expected, because on the x86_64 AMIs the centos user is 
configured to use the SSH key selected in the AWS EC2 Launch Wizard, and a SSH 
login password is not required. 
 
In the aarch64 AMI, the centos and root usernames all prompt for password, and 
never seem to consider the provided SSH key.
 
This is the SSH command that I am using:
 
ssh -i ssh_key_selected_at_launch.pem centos@
 
This command results in a password prompt.
 
What is the process for connecting to the CentOS Stream AMI spun for aarch64?
 
Thank you!
 
David Lemcoe Jr.
 
-- next part --
An HTML attachment was scrubbed...
URL: 

-- next part --
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 1481 bytes
Desc: not available
URL: 

 
--
 
Message: 3
Date: Mon, 15 Mar 2021 12:46:49 -0400
From: David Lemcoe 
To: centos-virt@centos.org
Subject: Re: [CentOS-virt] Unable to Login to AWS AMI With SSH Key -
aarch64
Message-ID: 
Content-Type: text/plain; charset="utf-8"
 
I have resolved my ?issue.? It would appear that CentOS 8 Stream for aarch64 
does not support `t4g.nano` instance sizes. Once I moved to t4g.small, my SSH 
login worked as expected.
 
Sorry to bother!
-- next part --
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 1481 bytes
Desc: not available
URL: 

 
--
 
Subject: Digest Footer
 
___

Re: [CentOS] How to find out what's eating the bandwidth

[Frank Cox]

On Sun, 28 Mar 2021 13:14:16 -0400
Matthew Miller wrote:

> Is this a home network or a business one?

It's a really basic setup "routers from Staples" (dlink and tplink brands I 
think) plugged into the ISP's modems.

> You're right that you generally can't see everything from just any computer
> on a network, at least if it's switched. You need to watch from your
> gateway.

Then I'm outta luck for doing this sort of thing since the gateways are the 
tplink and dlink routers.  I thought that might be the case.

Thanks for the answers, guys!  It isn't what I wanted to hear,  but now I know 
more about this than I did before.

-- 
MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] How to find out what's eating the bandwidth

[Matthew Miller]

On Sun, Mar 28, 2021 at 10:53:49AM -0600, Frank Cox wrote:
> Is there a program that will tell me what's eating the bandwidth on a lan?
> I'm thinking of something that would tell me that a.b.c.d is using so many 
> mbps and a.b.c.e is using this many and so on.

Is this a home network or a business one?

If a home setup (or small business with consumer-style networking),
https://openwrt.org/docs/guide-user/services/network_monitoring/bwmon


> Or can just-another-computer-on-the-network actually see that sort of
> information? I don't know enough about the low level nuts and bolts of
> networking to know if it has that kind of access. I'm really just
> interested in volume of traffic per attached device rather than specific
> origin/destination information if that's easier to obtain.

You're right that you generally can't see everything from just any computer
on a network, at least if it's switched. You need to watch from your
gateway.


-- 
Matthew Miller

Fedora Project Leader
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

Re: [CentOS] How to find out what's eating the bandwidth

[Bob Marcan]

On Sun, 28 Mar 2021 10:53:49 -0600
Frank Cox  wrote:

> Is there a program that will tell me what's eating the bandwidth on a lan?
> 
> I'm thinking of something that would tell me that a.b.c.d is using so many 
> mbps and a.b.c.e is using this many and so on.
> 
> Or can just-another-computer-on-the-network actually see that sort of 
> information?  I don't know enough about the low level nuts and bolts of 
> networking to know if it has that kind of access.   I'm really just 
> interested in volume of traffic per attached device rather than specific 
> origin/destination information if that's easier to obtain.
> 
> This way if something is eating the network I can find out what it is without 
> having to start unplugging cables and so on to find out when it stops.
> 

https://www.cyberciti.biz/faq/centos-fedora-redhat-install-iftop-bandwidth-monitoring-tool/
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos

[CentOS] How to find out what's eating the bandwidth

[Frank Cox]

Is there a program that will tell me what's eating the bandwidth on a lan?

I'm thinking of something that would tell me that a.b.c.d is using so many mbps 
and a.b.c.e is using this many and so on.

Or can just-another-computer-on-the-network actually see that sort of 
information?  I don't know enough about the low level nuts and bolts of 
networking to know if it has that kind of access.   I'm really just interested 
in volume of traffic per attached device rather than specific 
origin/destination information if that's easier to obtain.

This way if something is eating the network I can find out what it is without 
having to start unplugging cables and so on to find out when it stops.

-- 
MELVILLE THEATRE ~ Real D 3D Digital Cinema ~ www.melvilletheatre.com
___
CentOS mailing list
CentOS@centos.org
https://lists.centos.org/mailman/listinfo/centos