Re: [CentOS] Thanks to every one

2017-07-20 Thread m . roth
Valeri Galtsev wrote: > > On Thu, July 20, 2017 8:07 am, Peter Larsen wrote: >> On 07/16/2017 12:30 PM, Andreas Benzler wrote: >>> - The firewall is placed in front of the cluster. >>> - After you have found a safe base for this, you freeze it. >> >> Sorry, but this statement really urks me in a

Re: [CentOS] Thanks to every one

2017-07-20 Thread Valeri Galtsev
On Thu, July 20, 2017 8:07 am, Peter Larsen wrote: > On 07/16/2017 12:30 PM, Andreas Benzler wrote: >> - The firewall is placed in front of the cluster. >> - After you have found a safe base for this, you freeze it. > > Sorry, but this statement really urks me in a wrong way. Why do you > think a

Re: [CentOS] Thanks to every one

2017-07-20 Thread Peter Larsen
On 07/16/2017 12:30 PM, Andreas Benzler wrote: > - The firewall is placed in front of the cluster. > - After you have found a safe base for this, you freeze it. Sorry, but this statement really urks me in a wrong way. Why do you think a firewall is the ONLY part that needs to be provide security?

Re: [CentOS] Thanks to every one

2017-07-18 Thread Peter Kjellström
On Tue, 18 Jul 2017 09:01:07 -0400 Jonathan Billings wrote: > On Sun, Jul 16, 2017 at 06:02:15PM +0100, Pete Biggs wrote: > > > > > > The physicists and mathematicians who count there need high > > > durations. > > > > Yes. I too run HPC clusters and I have had uptimes

Re: [CentOS] Thanks to every one

2017-07-18 Thread Paul Heinlein
On Tue, 18 Jul 2017, Jonathan Billings wrote: Also, if your researchers can't write code that performs checkpoints, they're going to be awfully unhappy when a bug in their code makes it segfault 199 days into a 200 day run. +1 -- Paul Heinlein <> heinl...@madboa.com <>

Re: [CentOS] Thanks to every one

2017-07-18 Thread Valeri Galtsev
On Tue, July 18, 2017 8:01 am, Jonathan Billings wrote: > On Sun, Jul 16, 2017 at 06:02:15PM +0100, Pete Biggs wrote: >> > >> > The physicists and mathematicians who count there need high durations. >> >> Yes. I too run HPC clusters and I have had uptimes of over 1000 days - >> clusters that are

Re: [CentOS] Thanks to every one

2017-07-18 Thread Jonathan Billings
On Sun, Jul 16, 2017 at 06:02:15PM +0100, Pete Biggs wrote: > > > > The physicists and mathematicians who count there need high durations. > > Yes. I too run HPC clusters and I have had uptimes of over 1000 days - > clusters that are turned on when they are delivered and turned off when > they

Re: [CentOS] Thanks to every one

2017-07-16 Thread Pete Biggs
> let's think about what a hpc cluster is for. > Second, one should always ask the question where security is to be > applied, +1 You have to assess your environment and weigh up the benefits of uptime vs security. Sometimes the security that is fixed in a new kernel is inconsequential in

Re: [CentOS] Thanks to every one

2017-07-16 Thread Andreas Benzler
Halo Valeri, let's think about what a hpc cluster is for. Second, one should always ask the question where security is to be applied,then one can come to the following decision: - The firewall is placed in front of the cluster. - After you have found a safe base for this, you freeze it. - We

Re: [CentOS] Thanks to every one

2017-07-16 Thread Valeri Galtsev
On Sun, July 16, 2017 2:18 am, Andreas Benzler wrote: > Thanks to all offers free service to provide Centos. > > Why? After I had the BIOS for the laptop T440 & docking station had I > had immediately after the first installation works, without any > failures. > > Since I know how hard such a

[CentOS] Thanks to every one

2017-07-16 Thread Andreas Benzler
Thanks to all offers free service to provide Centos. Why? After I had the BIOS for the laptop T440 & docking station had I had immediately after the first installation works, without any failures. Since I know how hard such a work is, I thank everyone in the community to make that possible.