[CentOS] What on Centos is wiping out my eth0 IP address every 5 minutes?

[J.Witvliet at mindef.nl]

-----Original Message-----
From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of m.roth at 5-cent.us
Sent: Wednesday, July 24, 2013 4:07 PM
To: CentOS mailing list
Subject: Re: [CentOS] What on Centos is wiping out my eth0 IP address every 5 minutes?

Rock wrote:
> On Tue, 23 Jul 2013 23:03:00 -0700, John R Pierce wrote:
<snip>
> I think my "original" problem was what you guys sensed from
> the start.
>
> It was supremely frustrating having my manually typed eth0
> IP address being wiped out - but - apparently that was what
> Network Manager was supposed to do.
>
> Apparently Network Manager was set to pick up a DHCP address
> for eth0, and, when none were forthcoming, it wiped out the
> existing IP address.
>
> I only need to figure out now how to switch gracefully between
> using wlan0 connected to the home broadband router inside the
> house, and using eth0 wired to the Nanobridge M2 outside the
> house.
<snip>
Several thoughts:
  on the router, see if it will accept a fixed IP, rather than one
assigned by DHCP; if so, you can set it on the laptop. I'd also check to
see if you need to deal with NetworkManager to do that. I don't know - I
*loathe* NM, and am majorly annoyed that upstream decided to put a tool
appropriate for a laptop as the default for *everything*... says the guy
dealing with 150 or more servers and workstations that are hardwired.

-----Original Message-----
I give servers a fixed address, but they are also defined in the dhcp server.
It might look overflues, but when doing an installation with PXE, you need dhcp.
Just gotta be careful that the hard coded and the dhcp ones are the same....

Regarding N.M.: It is a wonderful tool.
At least for end-users on desktops/laptops with frequently changing WIFI or UMTS connections.

But for servers, without a GUI, but with vlans, load-balancing or H-A? Nah!

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