[CentOS] how to know when a system is compromised

Leroy Tennison

leroy at datavoiceint.com
Thu Nov 14 19:20:44 UTC 2019

<sigh> Thanks - I'll keep that in mind...
From: CentOS <centos-bounces at centos.org> on behalf of Chris Adams <linux at cmadams.net>
Sent: Thursday, November 14, 2019 10:57 AM
To: centos at centos.org <centos at centos.org>
Subject: [EXTERNAL] Re: [CentOS] how to know when a system is compromised

Once upon a time, Leroy Tennison <leroy at datavoiceint.com> said:
>  The executable could be placed on mounted read-only media

That's not as secure as you think.  Linux bind mounts can mount a file
over another file (plus there's overlay filesystems), so it's possible
to replace a binary even on a read-only device.

Chris Adams <linux at cmadams.net>
CentOS mailing list
CentOS at centos.org


Leroy Tennison
Network Information/Cyber Security Specialist
E: leroy at datavoiceint.com


2220 Bush Dr
McKinney, Texas

This message has been sent on behalf of a company that is part of the Harris Operating Group of Constellation Software Inc.

If you prefer not to be contacted by Harris Operating Group please notify us<http://subscribe.harriscomputer.com/>.

This message is intended exclusively for the individual or entity to which it is addressed. This communication may contain information that is proprietary, privileged or confidential or otherwise legally exempt from disclosure. If you are not the named addressee, you are not authorized to read, print, retain, copy or disseminate this message or any part of it. If you have received this message in error, please notify the sender immediately by e-mail and delete all copies of the message.

More information about the CentOS mailing list