similar to: Jumbo frames with virtio net

Displaying 20 results from an estimated 50000 matches similar to: "Jumbo frames with virtio net"

2007 Oct 12
1
OT: a very big problem with ipsec-tools on CentOS5 (SOLVED)
Buf ... Solved. Problem was that /etc/pam.d/racoon doesn't exists (I found this tip on NetBSD ipsec pages). Simply I have copied /etc/pam.d/passwd to /etc/pam.d/racoon and now all works as expected. Many thanks for your help Ross. Ross S. W. Walker wrote: > > I think it might just use another one like /etc/pam.d/remote > cause I audited the package and it wasn't there.
2006 Aug 21
0
[Fwd: Re: Connecting CentOS to IPSEC VPN (Checkpoint FW1)]
Sorry Dag, it is possible to use linux as a roadwarrior client: http://www.fw-1.de/aerasec/ng/vpn-racoon/CP-VPN1-NG-Linux-racoon-roadwarrior.html -------- Original Message -------- Subject: Re: [CentOS] Connecting CentOS to IPSEC VPN (Checkpoint FW1) Date: Mon, 21 Aug 2006 15:20:55 +0200 From: carlopmart <carlopmart at gmail.com> To: CentOS mailing list <centos at centos.org>
2008 Sep 23
1
Jumbo frames with domUs in bridging mode
Hi everyone, I have looked through the list archives and seen a few posts about jumbo frame support, but there is no definitive answer on whether or not it has been tested or is working for anyone. I tried using an MTU of 9000 in a domU and encountered some very interesting and not-so-great results. My machines used in this test are: * NFS (physical) * dom0 (physical) * domU (virtual)
2013 Sep 24
2
USB redirection under CentOS 6.4
Hi all, Does usb redirection works?? I am trying to assign to a Win7 kvm guest an usb HP printer without luck ... My second attempt is to use usb redirection, but according to Redhat's docs, this option is only available for windows using RHEV ... Is this correct?? Exists another tool to assign a printer via usb to a kvm guest?? Thanks. -- CL Martinez carlopmart {at} gmail {d0t} com
2011 Jan 28
2
OT: Recommendations for a virtual storage server
Hi all, I need to install a virtual machine acting as a virtual storage server under CentOS 5.x (using kvm, xen, virtualbox or vmware). This virtual storage machine needs to server storage to another ESXi server and at the same time to the host where is installed. This is due to the limitations of hardware I have available. Both hosts needs to server several machines. It is very
2013 Mar 16
1
Problems with qemu img disks allocated in a nfs share
Hi all, I have a strange problem with qemu img disks allocated in a nfs share on a CentOS 6.4 host. Every time when I try to start a vm this error appears: char device redirected to /dev/pts/1 qemu-kvm: -drive file=/data/vmachines/win2k12adsrv/win2k12vol01.img,if=none,id=drive-virtio-disk0,format=qcow2,cache=none: could not open disk image /data/vmachines/win2k12adsrv/win2k12vol01.img:
2013 Oct 08
1
Avoid sharing interrupts under kvm guest
Hi all, How can I avoid sharing interrupts in a kvm guest? I have installed a debian 7 guest in a centos 6.4 host with 5 virtio vnics and 2 virtio disks and irq11 is used by eth2, eth3, eth4 and irq10 eth0, eth1 ... Is it possible to avoid this situation?? Thanks. -- CL Martinez carlopmart {at} gmail {d0t} com
2011 Apr 23
4
A question about memory ballooning
Hi all, How can I manage automatically memory ballooning under a kvm host (C5.6 and future C6)?? For example if I define a kvm guest to boot up with 512MB of RAM and I have configured 1GB as a maximum memory for this guest, how can I allocate this memory when guest will need it?? And the opposite question, can memory balloon be deallocated?? And is it possible to do this automatically or
2009 Dec 11
5
About doing backups with kvm guests
Hi all, I have two centos 5.4 servers that I use to run several windows kvm guests (10). All works ok (more or less) but I have a problem with backups. These windows guests are configured to use lvm partitions as a virtual disks. My problem is when I need to do guests backups. which is the best form to backup and restore these windows guests? Some examples? I see snapshot's lvm
2010 Mar 16
2
What kernel params to use with KVM hosts??
Hi all, I order to reach maximum performance on my centos kvm hosts I have use these params: - On /etc/grub.conf: kernel /vmlinuz-2.6.18-164.11.1.el5 ro root=LABEL=/ elevator=deadline quiet - On sysctl.conf # Special network params net.core.rmem_default = 8388608 net.core.wmem_default = 8388608 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216
2007 Oct 04
3
Rsync not able to transfer over jumbo frames?
Hello, I have 2 network cards on my 2 of my computers that I am trying to transfer data on. The second network cards are specifically for transferring files between the two so I enabled jumble frames by setting the mtu to 9000. I seem to be able to connect between the two via ssh and other methods using this setting so I thought everything was working right until I tried rsync. I used the
2015 Nov 09
2
centos 6 and super jumbo frames
On 11/09/2015 12:36 PM, Gordon Messmer wrote: > On 11/09/2015 08:34 AM, Steve Clark wrote: >> Has anyone using CentOS 6 been able to successfully set an mtu larger >> than 9710 >> on an interface. > Maximum frame size varies from implementation to implementation: > http://pages.uoregon.edu/joe/jumbo-clean-gear.html > > It's also worth noting that that due to
2007 Apr 28
0
CentOS, RTL8196 and jumbo frames.
Hi all, I've just upgraded my home network to a Linksys SRW2024 (with lovely vlan trunking support!) and I'm trying to enable jumbo frames. When I try to set the MTU of an rtl8169 based network card (it's a Netgear RA311), it comes up with an error stating: # ifconfig eth1 mtu 9000 SIOCSIFMTU: Invalid argument The only options it will take are 1500 or below. Does anyone know
2011 Apr 23
2
Extract ip address from a kvm guest
Hi all, Somebody knows how can I extract/know an ip address used by a kvm guest using a script?? For example I have the following guests: [root at kvmsrv01 bin]# virsh list --all Id Name State ---------------------------------- 1 linclunode01 running 2 linmgmt running 5 win7desktop running I know that linclunode01 has 172.25.50.1 as
2011 May 13
2
Discover what vnet is attached to a kvm guest
Hi all, How can I see what vnet is attached to a certain kvm guest?? For example: I have a kvmguest1. When I launch this guest with virsh command, virsh creates a new vnetX interface for this guest. How can I extract this virtual net interface (vnet0, vnet1, vnet2 or so on) using a script?? Thanks. -- CL Martinez carlopmart {at} gmail {d0t} com
2009 Dec 23
3
OT:Which filesystem to use with large files
Hi all, Recently I have installed a centOS 5.4 server to use as a home NAS server. I need to use large files (8GB minimum) inside of it to serve via iSCSI services. Which filesystem do you recommends me to reach maximum performance: xfs, ext3, ext4, gfs2 ....?? Thanks. -- CL Martinez carlopmart {at} gmail {d0t} com
2007 Dec 01
1
Good tutorial about using heartbeat2, ocfs2 and evms with xen 3.x
Hi all Sombedody can points me to a good tutorial about using high availabilty clusters with xen using heratbeat2, ocfs2 and evms under rhel/centos, debian or sles?? I am doing various searches without a result ... (google shows me a lot of references, mailing lists, etc but not a good doc) Many thanks. -- CL Martinez carlopmart {at} gmail {d0t} com
2006 Jul 06
2
Question about setting up a bridge
Hi all, Where I can find docs about config a bridge interface under CentOS 4.3?? I can not find anything on Redhat and CentOS sites about this. many thanks -- CL Martinez carlopmart {at} gmail {d0t} com
2005 Sep 22
2
When RHCS will be out?
Hi all, Somebody knows when RHCS for CentOS 4 will be out??? -- CL Martinez carlopmart {at} gmail {d0t} com
2008 May 21
2
Maybe OT: Some strange problem with postfix
Hi all, I have a strange problem with postfix on a CentOS 5.1 (fully patched). Every time that postfix sends a message to public smtp servers generates an autoresponse mail to sender about delay ... Somebody knows how can I fix this?? -- CL Martinez carlopmart {at} gmail {d0t} com