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...ork. I know I could set never-default to the interfaces, but I shouldn't have to do it to every machine I had. Especially bad was the situation when I had two VLANs and a normal ethernet interface, and dhclient tried to ask a lease for the ethernet over the VLAN. Best regards, -- Sander Kuusemets University of Tartu, High Performance Computing, IT Specialist

...s) worked fine. Environment: * A VMWare virtual machine * CentOS 6.7 (Final) Is there any other way I'm missing? Is this caused by the fact that I was trying to resize a partition that is under the root file system? If so, then is it really impossible to do it live? Thanks, -- Sander Kuusemets University of Tartu, High Performance Computing, IT Specialist

Hi, Is there some tool or method in centos that can limit cpu usage to some percentage for specified processes that consume large cpu resource? I found cpulimit which is only able to limit one process. what I want is one tool that can limit several same processes' cpu usage. Thanks! Regards andrew

I can boot from DVD. I deleted kernel. Thought it will fix the problem. Now I can see rescue menu only. Kernel source is there. How to get back kernel. On Friday, November 20, 2015, Arun Khan <knura9 at gmail.com> wrote: > On Fri, Nov 20, 2015 at 2:18 PM, Siva Prasad Nath > <shivaprasadnath21 at gmail.com <javascript:;>> wrote: > > Hi, > > My server not able

Thanks. How to create a live boot disk? On Friday, November 20, 2015, Sander Kuusemets <sander.kuusemets at ut.ee> wrote: > You have to boot from a live boot disk, chroot into your old system's > filesystem, mount all partitions properly and then download and rebuild the > kernel and grub config. You can try just "yum install kernel" aswell, but > I...

...to know whether it's possible to disable IPv6 with NetworkManager only (over command line)? I am aware of: * echo "net.ipv6.conf.all.disable_ipv6 = 1" > /etc/sysctl.d/disableipv6.conf * sysctl -p But doing it with NM would be way easier to remember. Thanks! -- Sander Kuusemets University of Tartu, High Performance Computing, IT Specialist Skype: sander.kuusemets1

How about disabling network manager and using the static ip addresses? Eero 17.3.2016 9.05 ip. "Sander Kuusemets" <sander.kuusemets at ut.ee> kirjoitti: > Hello, > > Why is it so, that NetworkManager allows, and in several cases I've had, > defaults to setting default route to several interfaces at the same time? > > Had my fair share of problems with how 172.17.62.something...

I did not do pvresize because neither "pvs" or "pvdisplay" reported to have free space. After reboot they did, after which doing pvresize worked successfully. Sander Kuusemets University of Tartu, High Performance Computing, IT Specialist Skype: sander.kuusemets1 +372 737 5694 On 24/12/15 09:17, Gordon Messmer wrote: > On 12/21/2015 11:15 AM, Sander Kuusemets wrote: >> So what happened, is that after another administrator had extended >> the disk from VM...

Hi, My server not able to boot up. It is hanging after few times. How to repair boot system? I am trying to use grub2-install. Is it necessary to install grub2 on boot device? Please help. Thanks in advance. -- Shiva Prasad Nath 92981134

...have to boot from a live boot disk, chroot into your old system's filesystem, mount all partitions properly and then download and rebuild the kernel and grub config. You can try just "yum install kernel" aswell, but I'm not sure whether it'd work. Best regards, -- Sander Kuusemets On 11/20/2015 03:25 PM, Siva Prasad Nath wrote: > I can boot from DVD. I deleted kernel. Thought it will fix the problem. Now > I can see rescue menu only. > Kernel source is there. How to get back kernel. > > On Friday, November 20, 2015, Arun Khan <knura9 at gmail.com> wrote...

On 12/21/2015 11:15 AM, Sander Kuusemets wrote: > So what happened, is that after another administrator had extended the > disk from VMWare, I tried to extend it from the OS side. ... > Now's when the problems happened. After writing the partition table I > got the usual "Busy" error. But I needed to do this wi...

Hello, You could do it with Cgroups, if your specified processes run or can be made to run in group permissions. https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Resource_Management_Guide/sec-cpu_and_memory-use_case.html Regards, -- Sander Kuusemets University of Tartu, High Performance Computing, IT Specialist Skype: sander.kuusemets1 +372 737 5694 On 09/07/2016 10:45 AM, qw wrote: > Hi, > > > Is there some tool or method in centos that can limit cpu usage to some percentage for specified processes that consume large cpu resource...