Re: Anaconda multiple Ethernet cards question

2009-09-23 Thread Glen Turner

On 21/09/09 23:42, John Reiser wrote:

Print the low 24 bits as 6 hex digits (possibly with no punctuation),
and chop the description string after 22 characters (for example.)


Why not use the DMI External Connector Designator. That's what
the manufacturer provides to identify external ports after all.
Some examples for kit I have to hand:

MacMini
  eth0 00:16:CB:xx:xx:3D Ethernet

MacBook Pro
  eth0 00:17:F2:xx:xx:2E RJ-45

Acer Altos R300 (no external connector designation)
  eth0 00:00:E2:xx:xx:FE
  eth1 00:00:E2:xx:xx:FF

Acer Altos R510
  eth0 00:0E:0C:xx:xx:CF NIC2/2
  eth1 00:0E:0C:xx:xx:CE NIC1/2

IBM xSeries 343
  eth0 00:0E:0C:xx:xx:D9 NIC2/2
  eth1 00:0E:0C:xx:xx:D8 NIC1/2

The results aren't too bad, especially for those last two
Intel motherboards where the ethN and physical port orders
are reversed.

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Re: Firewall rules using SELinux context (Was Re: RFE: FireKit)

2009-07-27 Thread Glen Turner

On 25/07/09 07:14, Simo Sorce wrote:


What's the value of labeling packets based on source/destination ports ?
Doesn't seem to add any new information.


Indeed.

Security marking can add an additional IP header, so that a multilevel
operating system on one machine can pass those multiple levels of data
across an intervening network.

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Re: FESCo meeting summary for 2009-06-26

2009-07-02 Thread Glen Turner

On 30/06/09 01:39, Bill Nottingham wrote:

That's a really crappy place for that message, though. What's the user
supposed to do there... reboot and then go download another 700MB - 4GB?


Yes it's a crappy place. I knew that when I suggested it.  I just couldn't
think of a Javascript hack which would cough up the CPU features even when
running under a 32b OS like Windows Xp.  Suggestions welcomed.

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Re: Changing the default 32-bit x86 arch for Fedora 12 (#2)

2009-06-20 Thread Glen Turner

On 18/06/09 11:03, Jeff Spaleta wrote:


Its all a matter of how you look at it.  If it turns out that a lot of
64bit hardware owners are running 32bit Fedora 11...


It would be useful if anaconda displayed a info box telling people when
they were considering installing 32b Linux on systems with 32/64b CPUs
and more than about 800MB of RAM. [1]

In disk and networking the win from 64b is considerable due to much
reduced low memory fragmentation and in general there's a lot less
stuffing about with DMA. It is well worthwhile for people to install
64b Linux when that is reasonable, but as this thread has pointed out
determining 64b capabilities prior to installation is a big ask of
people unfamiliar with the intricacies of their CPU vendor's products.

Thus the requirement to let installers of 32b Linux know when a better
choice is available (but of course, not to insist upon that better
choice -- the info box should only be informational).


[1] More technically, when /proc/meminfo's LowTotal  MemTotal.

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