similar to: NetworkManager default route

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

Hello, Today a virtual server under my administration ran out of disk space, so I had to get extra space to it.. while it was running, because it's an important web server without any kind of HA/Load Balancing (don't do that, kids). So what happened, is that after another administrator had extended the disk from VMWare, I tried to extend it from the OS side. Everything went well,

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

Hello, Simple question, I'd like 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

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:

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

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

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'm not sure

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

Hello, I''m using shorewall-4.5.16 with centos5. The dhclient stores the lease information on the /var/lib/dhclient/dhclient-<DEVICE>.leases file. The /var/lib/shorewall/firewall script has the function detect_dynamic_gateway that detects the gateway based on the leases file. The code in the function is: detect_dynamic_gateway() { # $1 = interface local interface

While troubleshooting my MultiISP box, I suspect I might have found either a bug or an incompatibility with CentOS 5.2. In prog.header (function detect_dynamic_gateway), Shorewall tries to look for: /var/lib/dhcp/dhclient-${1}.lease However (at least under CentOS 5 - unknown about other OSes), this should be: /var/lib/dhclient/dhclient-${1}.leases (different path, and "leases"

Hello Is there a way for the dhcp client to send the current host name of the machine when requesting a lease ? Currently I have to include a line like DHCP_HOSTNAME=appserver2 in my /etc/sysconfig/network-scripts/ifcfg-eth0, but I would like to tell the dhcp client to just 'also send the hostname' and then the client to get the current hostname itself, instead of having the name

Hi all, I am having an issue where my hme0 interface is always turning up and down with dhclient requesting a lease. I am thinking this could be the same issue described by Jeremy Chadwick on June 9th: http://lists.freebsd.org/pipermail/freebsd-stable/2013-June/073711.html Everything was fine on 8.2-STABLE and older versions. It was then upgraded directly to 9.0-STABLE

Hi all :-) on centos 6 I need keep the hostname from a dhcp server: cat /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 HWADDR=00:50:56:27:0E:C8 TYPE=Ethernet UUID=20924b21-e92a-4944-a054-06d1967155c1 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=dhcp PEERDNS=yes with this config, centos keep only ip from dhcp server (not gw, not dns) where is dhclient.conf? I need to create it? If yes,

Hello All, I'm installing some DIY routers, composed of Intel nuc's ,Linksys usb-ethernet adapters and Centos7 On most machines I just plug in the usb device, install Centos7 and everything works. But on this one machine the network interface doesn't work. After installing ip addr shows: [root at clgmol ~]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue

hi all... again... i sent this message to general questions but nobody got excited about it. i just installed 6 on my t30 laptop. brand new. when trying dhclient i get: DHCPDISCOVER on fxp0 to 255.255.255.255 port 67 interval 5 this trys 6 times then this shows up: No DHCPOFFERS received. No working leases in present database - sleeping. i run a tcpdump while requesting a lease and for

Hi, folks, I and the other admin here have just been assigned a mission... here's what's happening: only very recently - the last week? our CentOS 7 boxes, or at least some of them, will lose their IPv6 addresses, and not get it back. 1. We're running dibbler on the same box that serves DHCP. 2. It's been working for many months. 3. The lease file remains in place.

I have need to use the old network-scripts and not NetworkManager. I did yum install network-scripts, I have ifcfg-eth0 set for ONBOOT=yes but it is not starting on boot. What have I missed ? Jerry

I recently reconfigured some CentOS 4.3 systems that were using DHCP to use static IP addresses. At the same time, the systems were moved to a new VLAN. Here is the approximate sequence of events that took place: 1. ifdown eth0 2. edit /etc/sysconfig/network-scripts/ifcfg-eth0 with static IP address 3. wait for network folks to reconfigure switch 4. ifup eth0 I may have

I would like to use dnsmasq to cache nameserver query results, and I have set dhcp to prepend the 127.0.0.1 name-server to the list of nameservers. dnsmasq would then automatically exclude the localhost as a name server and use all the others from the list provided by dhcp. But it was too nice to be true, because NetworkManager was there, ready to mess up anything I try to do, including the