CentOS - Mar 2017 - From Networkmanager to self managed configuration files

Hello Guys,

update my post, because of a route from ipv6 on same networkcard,
with only ipv4 enabled

Sincerely

Andy

On 8 March 2017 at 06:56, Andreas Benzler <andreas at benzlerweb.de>
wrote:
> Hello Guys,
>
> update my post, because of a route from ipv6 on same networkcard,
> with only ipv4 enabled
>
> Sincerely
>
> Andy
>
>
Please accept this as honest constructive criticism from someone who
also likes to blog.

On EL7 this is really bad advice:
> systemctl stop NetworkManager; systemctl disable NetworkManager; systemctl
mask NetworkManager
You may be interested in this article of mine:
https://www.hogarthuk.com/?q=node/8

The recommended configuration for EL7 is to use NetworkManager unless
you have a very specific edge case preventing you from doing so:

https://access.redhat.com/solutions/783533

The legacy network service is in effect deprecated, like net-tools
was, as no new features are being released for it and no RFE's are
being accepted. All future work is on NetworkManager.

Note as well this article was last updated in 2014 - NetworkManager
has been updated to handle more use cases than back then.

As always it's best to check with the upstream documentation:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Networking_Guide/index.html

Finally there was nothing to do with IPv6 in your article.

That address was an IPv4 address and the zeroconf stuff configures the
169.254.0.0/16 network as a 'local link' network on that interface.

If it was IPv6 it would have an address like
fe80::33bb:5a14:be57:1690/64 ... which is an IPv6 link local address.

Regards,

James

> The recommended configuration for EL7 is to use NetworkManager unless
> you have a very specific edge case preventing you from doing so:
>
The truth is a lot of us run servers that don't need to have their 
network "managed" by Networkmanager.

We just need to set an IP address, subnet mask, gateway, and DNS servers 
and we will never be changing that configuration ever again for the 
entire life of the server.
Any 3-4 line script that does the job is sufficient, servers don't need 
gimmicks, they're not going to be hotspotting on wireless networks, the 
cable goes in, the server enters production and that's it!

-- 
Regards,

Giles Coochey
+44 (0) 7584 634 135
+44 (0) 1803 529 451
giles at coochey.net

Hello James,

your right in that position. I will correct it.

Sincerely

Andy

Certain application doesn't like the NetworkManager

for example take a look here.


https://www.rdoproject.org/install/quickstart/


And on server stage it's better to run without 
any complicate configuration tools.

Tools can make life harder in some cases.

Got many other distros run before centos, why not.

I personally like it slim and easy. 


Sincerely

Andy