similar to: Xen 10GBit Ethernet network performance (was: Re: Experience with Xen & AMD Opteron 4200 series?)

Hello. I need your help, DomU xen network diconnects randomly, how do you monitoring this? When I connect to vnc server in the hosts, DomU is running, then I open the DomU, after that guest network responds. DomU Debian 6.03 over Centos 5.7 and Xen 3.03. My network configuration: eth0 Link encap:Ethernet HWaddr 68:B5:99:78:AA:6D inet addr:192.168.5.230 Bcast:192.168.5.255

Hello Maybe someone could direct us to right solution with the problem descibed below. We tried different trick bo no success stories. We have a development cluster based on Dell R815 servers (+-30) and a storage server - Netapp FAS 3240 runnig Data Ontap 8.1p2. We have some 100 virtual servers - we use Xen 4.1 for virtualisation. A basics OS is Debian Squeeze with some backports packages

Hi Xen developers and enthousiasts, Recently I have been having a lot of problems with HVM hosts on a dual Xeon E5606 box. Problem is that HVM hosts don''t work on it at all and crash the server. Today I got the logging to work over an IPMI console so then I compiled a fresh xen-unstable. Apart from the message I posted in the subject the call trace reads as follows: (XEN) Xen call

Hi Guys I''m trying to measure the traffic of domUs using vnstat without luck. My configuration: Debian 6.0.3 xen 4.0.1 vnstat 1.11 I''m using bonding with two network cards. auto bond0 iface bond0 inet manual slaves eth0 eth1 bond-mode active-backup bond-miimon 100 bond-updelay 200 bond-downdelay 200 bond-primary eth0 auto br0 iface br0 inet static

Dear all, I''m setting up a new gateway for a small network (under 30 users)Gw will host the following services:shorewalldnsproxy i''m considering installing snort.can i do so on the same exact box ? is there any security risk of doing so ? box would have 4 ISPs and two internal interfaces. Any recommendation about the optimal setup of snort and shorewall (or if you suggest

On Mon, Feb 26, 2018 at 5:17 PM, Kip Warner <kip at thevertigo.com> wrote: > Hey list, > > I've read the man page for both the client and server daemon, so either > I missed something or this isn't an SSH issue but something going on > with perhaps routers or MTUs. > > I am having problems with already established connections to a remote > server timing out

Hi all, With help from others, I''ve been able to get Olaf''s patch for enabling MTUs >1500 for vifX.y and tapZ devices working. I''ve been able to boot dom0, launch domU and live-migrate without having the bridge''s MTU degrade at any time. Would the Xen RPM maintainers (and others) mind taking a look at the following patches? Kernel part:

After successfully getting higher MTU to work on my Realtek NICs, I started testing the impact of higher MTU on file transfers using NFS exported ramdisk to ramdisk. The results were unexpected. The higher the MTU on the sending NIC, the lower the file transfer speed. I tested by using time cp to copy a 1GB file (In case compression might affect the results, so I dd the test file from the CentOS

A colleague is working with a Samba installation where Windows clients are accessing the server over a VPN. They are seeing an issue where a share is visible, but if a directory contains more than 8 files, they get an error. The VPN is set to allow everything in both directions. Windows->Window sharing does work OK across the link, as do other large file transfers (NFS, FTP). The Samba

Hey, I am currently considering a two machine Xen setup based on AMD Opterons, more precisely Dell R515s or R415s with dual Opteron 4274HE. Does anyone has some Xen setup(s) running on top of Opterons 4274HE, Opteron 4200 or Dell R515 machines and is willing to share some experience? In particular, I am interested in using Debian squeeze (Xen 4.0.1, Linux 2.6.32) for dom0 and most domUs. Any

Hi all, I want to set the advertised value of MTU for virbr0 interface on a Fedora 21 host to 1454 to accommodate the installation of new VMs for testing purposes. The aforementioned host is an OpenStack VM actually, which explains the need for a lower than 1500 MTU. I noticed Pieter Hollants' patch to set dhcp-option=<number>,"<value>" for an interface, but

http://bugzilla.mindrot.org/show_bug.cgi?id=792 Summary: mtu and NAT wrong solution Product: Portable OpenSSH Version: -current Platform: All OS/Version: Linux Status: NEW Severity: major Priority: P4 Component: Miscellaneous AssignedTo: openssh-bugs at mindrot.org ReportedBy:

Greetings... ** Short Description / Abstract ** Using my _internal_ WiFi card, OpenSSH succeeds to local (internal) LAN hosts, but hangs after authentication to external LAN hosts; however PuTTY works for all hosts. Using an _external_ WiFi card, OpenSSH does succeed to all LAN hosts (as did PuTTY, still, as well). ** Longer Description and Details ** *** HW Description *** I have a laptop

http://bugzilla.mindrot.org/show_bug.cgi?id=277 ------- Additional Comments From stevesk at pobox.com 2002-06-15 14:19 ------- i don't know what this is: debug1: Credentials Expired debug1: proxy expired: run grid-proxy-init or wgpi first File=/tmp/x509up_u500

Very rarely, but it has repeated, we see openssh on the client side hanging. On the server side there is no indication of connection in the logs. These are always scripted remote commands that do not have user interaction when we find it. This seems to be happening only in vm environments but I could be wrong. It seems surprising to me that there would not be timeouts and retries on the protocol,

Hello, While using xen 4.1-testing.hg (r23202) I noticed that the ''vifname'' config value is not handled by xl, but is handled by xm. Is there a workaround or patch for this? My firewall and scripts depend on static vifnames. XM works good - it adds multiple interfaces to multiple bridges and configures them appropriately. But with xl it differs -- here only tap devices are

Hello, While using xen 4.1-testing.hg (r23202) I noticed that the ''vifname'' config value is not handled by xl, but is handled by xm. Is there a workaround or patch for this? My firewall and scripts depend on static vifnames. XM works good - it adds multiple interfaces to multiple bridges and configures them appropriately. But with xl it differs -- here only tap devices are

Hi,Andy Thank your very much! For the MLPPP LFI,I found that in Cisco configuration,it use "ppp multilink;ppp multilink fragmentation;ppp multilink fragment-delay 20;ppp multilink interleave " command to enable MLPPP LFI.So I think just realizing the same function on my linux router would be fine.But I got no idea how to do this on linux.So is there anything with iproute2?Would you

Hi, On Mi, 2015-01-28 at 09:16 -0500, Vlad Yasevich wrote: > On 01/28/2015 05:34 AM, Hannes Frederic Sowa wrote: > > Hi, > > > > On Mi, 2015-01-28 at 11:46 +0200, Michael S. Tsirkin wrote: > >> On Wed, Jan 28, 2015 at 09:25:08AM +0100, Hannes Frederic Sowa wrote: > >>> Hello, > >>> > >>> On Di, 2015-01-27 at 18:08 +0200, Michael

Hi, On Mi, 2015-01-28 at 09:16 -0500, Vlad Yasevich wrote: > On 01/28/2015 05:34 AM, Hannes Frederic Sowa wrote: > > Hi, > > > > On Mi, 2015-01-28 at 11:46 +0200, Michael S. Tsirkin wrote: > >> On Wed, Jan 28, 2015 at 09:25:08AM +0100, Hannes Frederic Sowa wrote: > >>> Hello, > >>> > >>> On Di, 2015-01-27 at 18:08 +0200, Michael