yum list-security vs yum yum --security list updates

[chap0230]

Hello,
I'm confused on the difference between yum list-security vs yum yum --security list updates. All of the documentation and examples that I find make them seem like almost the same command. However, "--security" tells me that there are 0 security packages needed and list-security tells me that there is one package needed
Here is what I'm seeing on many of my servers:

[root@svr ~]# yum --security check-update
Loaded plugins: fastestmirror, security
Loading mirror speeds from cached hostfile
* base: mirror.sanctuaryhost.com
* centosplus: mirror.steadfast.net
* epel: mirror.steadfast.net
* extras: yum.singlehop.com
* updates: mirror.steadfast.net
Limiting package lists to security relevant ones
No packages needed, for security, 264 available
[root@svr ~]#

but list-security shows me that there is one package found

[root@svr ~]# yum list-security
Loaded plugins: fastestmirror, security
Loading mirror speeds from cached hostfile
* base: mirror.sanctuaryhost.com
* centosplus: centos.mirrors.tds.net
* epel: mirror.steadfast.net
* extras: yum.singlehop.com
* updates: centos.mirrors.tds.net
FEDORA-EPEL-2011-0163 newpackage python-ethtool-0.6-2.el5.i386
list-security done
[root@svr ~]#


can anyone give me some guidance on why this is happening?
Thanks!!
-Joe

[glennzo]

Doesn't look like you're running Fedora. Is it CentOS? There appears to be no such commands for Fedora's yum.

[chap0230]

do you have the package yum-security installed?
Thanks
-Joe

[PabloTwo]

I think maybe you mean this?

BASH:~/-> yum info yum-plugin-security
Loaded plugins: langpacks, presto
Available Packages
Name        : yum-plugin-security
Arch        : noarch
Version     : 1.1.31
Release     : 2.fc16
Size        : 34 k
Repo        : fedora
Summary     : Yum plugin to enable security filters
URL         : http://yum.baseurl.org/download/yum-utils/
License     : GPLv2+
Description : This plugin adds the options --security, --cve, --bz and --advisory flags
            : to yum and the list-security and info-security commands.
            : The options make it possible to limit list/upgrade of packages to specific
            : security relevant ones. The commands give you the security information.

[chap0230]

yes, that's the same one. sorry about the confusion.
Any idea what the difference is between the two?
I have a nagios alert setup to use '--security' and all checks out fine, so I'm worried that this check is inaccurate now...

[PabloTwo]

I don't know. Does "man 8 yum-security" shed any light?