[ale] OT: rant

[Lightner, Jeffrey]

FYI:
Network Manager didn’t come about until RHEL6 and early advice was to turn it off.   On later RHEL6.x versions and RHEL7 it is not quite the problem it was in early 6.x.

The odd thing about it is that even when you’re not doing DHCP it wants to set your /etc/resolv.conf based on entries stored in your /etc/sysconfig/network-scripts ifcfg-* files.

Another thing that bit me early on when I tried to use it was that it stores aliases such as eth1:1 in the main ifcfg-eth1 rather than in separate ifcfg-eth1:1 as the older network tool did.   When you’d start networking it would find your ifcfg-eth1:1 but assume you meant that to be eth2.   D’oh!

The device naming for physical location in the system is separate from Network Manager itself and it requires the hardware to report the information.   Personally I like seeing the em# or p<slot#>p<port#> names because it helps me locate the NIC without having to run “ethtool –p”.   One can use classic eth# names if preferred or if specific apps require it but so far I’ve not run across any that require the classic names.   In my view it is poorly written apps that insist on a specific naming convention that they don’t control rather than simply allowing one to specify the device name whatever it is.  (In fact most apps shouldn’t even need the device name as they should be relying on the IP or hostname setup rather than the device.)


From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of Jim Kinney
Sent: Tuesday, August 16, 2016 11:18 PM
To: Atlanta User Group (E-mail)
Subject: Re: [ale] OT: rant


Bunch of different ways. NetworkManager can now handle all the magic script-fu to handle everything from simple dhcp through redundant teaming with failover.

But the output is still ifcfg-fu scripts in /etc/sysconfig/network-scripts

The article doesn't mention that 7 uses pci bus name stuff like enp0s0f1 instead of eth0.

On Aug 16, 2016 6:03 PM, "Boris Borisov" <bugyatl at gmail.com<mailto:bugyatl at gmail.com>> wrote:
Post in linuxtoday.org<http://linuxtoday.org>:

"How to configure a static IP address on CentOS 7 / RHEL 7"
really?


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