On 10/30/2014 07:45 PM, david wrote:
> Folks
>
> I'm sure the Centos team has done a yeoman's job getting Centos7 ready,
> and that the Redhat team has done marvels in creating rhel7, but here's
> a little voice from a personal hobbyist user.
>
> Background:
> ('ve been maintaining several remote servers since Redhat 6 days,
> migrating from that to Whitebox, then Centos, and things have been
> running as expected including the current version of Centos6. As an
> experiment, I've tried to play with Centos7 on an in-house virtual
> machine (VMWare on Win7), and have encountered a collection of
> annoyances greater than I've even seen. Below is a note about them. If
> someone has some elegant solution, I'd love to try, but Centos7 is still
> unusable for me.
>
> 1: Firewall changes
> The change in firewall technology forced a complete re-do of my scripts
> which maintain firewalls, respond to attacks, etc. I think I've
> programmed my way around the issues, but it wasn't easy.
>
> 2: Apache changes
> These were subtle, but again were solved.
>
> 3: Service -> systemd
> The change from object-oriented view of service: (service httpd
> restart) to function-oriented (systemctl restart firewall) seems to be
> unnecessary, and counter to the way stuff is generally done in the
> modern world. Nonetheless, it was possible to solve that with some
> adaptive script programming.
>
> 4) Something with Unknown lvalue 'ControlGroup' in section 'Service'
> I don't know what to do with this. I constantly get the diagnostic:
> [/usr/lib/systemd/system/rtkit-daemon.service:32] Unknown lvalue
> 'ControlGroup' in section 'Service'
> and attempts to browse the internet for solutions come across barriers
> that require some paid subscription to view. This is currently a
> progress-stopper. The messages I see deal with boinc, which does not
> show up on my system using "rpm -qa | grep -i boinc".
>
> 5) Sendmail is out, postfix is in.
> This is a huge change, since I had lots of scripts that tailored the
> Sendmail system for spam protection, dealing with SmartHosts that
> required SMTP-AUTH and others required weird configurations, etc.
> Whether this is working yet I don't quite know, but it seems the scripts
> can accommodate the change.
>
> 6) Installation
> I have no idea why, when using the net-install, one must explicitly
> turn on the network. It seems unnecessary.
>
> 7) Lack of 32-bit support
> I think I understand this. After all, 32-bit machines may become
> "unusable" when the clock overflows, but isn't that a few years away,
> and couldn't some solution be found, even if kludgy? Some of the 32-bit
> hardware was of very high quality, and still runs perfectly. I'd hate
> to spend a few hundred dollars each to replace all those systems.
>
> 8) And more
NOTE:
You can continue to use CentOS-6 until 2020 ... CentOS-7 is an option,
not at all required for 6 more years.
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