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Desktop Supercomputer
by Rajagopal Swaminathan 19 Jul '10

19 Jul '10

Greetings, Have been looking at the specs of Boston Venom T4000. Boston Venom T4000 http://www.bostonindia.in/products/bos-t4000.aspx I could not figure out the lowest base price points, HA features and KVM support Yet to work out the storage part of say 8TB storage (with HA features, of course) for this beast. and accessability issues from devices. I am in the middle of trying to find out about What AMD has been doing in its end. and Lastly, wireless fencing devices Yet to look into easy monitoring and management tools. Any opinions please? Regards, Rajagopal

11 21

xm console -- what should I get?
by David Dyer-Bennet 19 Jul '10

19 Jul '10

If I type "xm console 6", say (when I have a virtual machine 6 running), what should I get? The documentation seems to indicate that I should get something that behaves like a telnet to a serial console. What I actually get is a connection that might show me a couple of lines of output that do look like they belonged on the console, but doesn't seem to accept any input (except that it does exit on the documented escape character ^[). These virtual systems show as running, and in fact with virt-viewer I can get a VNC console to them. Dom0 and the guests are Centos 5.5 x64, running on Intel processors with modern virtualization support (turned on in the bios, and it looks like Xen found it from xm dmesg output). -- David Dyer-Bennet, dd-b(a)dd-b.net; http://dd-b.net/ Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ Photos: http://dd-b.net/photography/gallery/ Dragaera: http://dragaera.info

6 5

Paravirtualized Centos 5.5 guest under Xen
by David Dyer-Bennet 19 Jul '10

19 Jul '10

The virtualization manual doesn't seem to say; does one have to do anything to get the Centos 5.5 paravirtualization drivers installed? Or is it sufficient to specify a paravirtualized guest, and the Centos install will then detect that and load the right things? And, is there a way to check in the guest that the right drivers are loaded? What are they? -- David Dyer-Bennet, dd-b(a)dd-b.net; http://dd-b.net/ Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ Photos: http://dd-b.net/photography/gallery/ Dragaera: http://dragaera.info

2 1

Re-exporting an NFS mount.. Possible?
by Kwan Lowe 19 Jul '10

19 Jul '10

I have an issue that is not all that unique, so I'm hoping someone has done it before. On the client end I have some very old RedHat based systems. On the server end is a Windows 2008 system running NFS server software. The clients mount the server resource as an NFS2 mount but some compliance issues were discovered with the setup. For various reasons, updating the client is not an option at this time. The fix the issue, the server needs to export NFS3 mounts but the clients do not support that version. As a workaround, I considered adding a third system running CentOS that would mount the server and re-export it to the clients. This will mitigate the current issue related to visibility of the share from certain groups. It does not appear possible, using the current kernel-based NFS server, to export an NFS-mounted filesystem. However, it appears that there is a FUSE NFS project that might work. Does anyone have any experience with such a setup?

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Re: [CentOS] 2X app server alternatives
by John R Pierce 19 Jul '10

19 Jul '10

On 07/18/10 11:15 AM, Silviu Hutanu wrote: > Yeap, but it will be nice to be based on VNC, actually I use Ulteo > Virtual Desktop ( http://www.ulteo.com ) I'm trying to figure out if > there is a better alternative.2X app server is just an example of a > better alternative. > > NX could be also an alternative. I suspect you'll need to define what your requirements are before discussing alternatives to some commercial package. 2X runs windows apps on a windows server, using the RDP protocol. apparently if you're considering VNC and other such things, none of those are requirements, leading me to wonder just what your requirements are. otoh, this discussion really has nothing to do with CentOS per se.

1 0

2X app server alternatives
by Silviu Hutanu 18 Jul '10

18 Jul '10

Does anyone know any oss alternatives to 2x aplication server ? Regards, Silviu Hutanu

4 3

noReplaceConfig equivalent for /etc/yum.conf
by FHDATA 16 Jul '10

16 Jul '10

Greetings, In up2date config file there is a directive by the name of noReplaceConfig . . . Do you know what is the /etc/yum.conf equivalent for that? noReplaceConfig[comment]=When selected, no packages that would change configuration data are automatically installed noReplaceConfig=1 Thank you,

2 1

Xen / KVM CentOS-5 How To Document
by gene.poole＠macys.com 16 Jul '10

16 Jul '10

Does anyone have any idea where I can locate a 'GOOD' how-to document on implementing Xen and/or KVM on a CentOS-5.3 system? I'm currently running VMware Server 2.0.2, but I would like to make the move to the open source virtualization - if possible. What I found is somewhat short on the networking piece. It doesn't matter if it's TUI or GUI. Thanks, Gene Poole gene.poole(a)macys.com

4 3

Error message downloading latest Spamassassin data files via sa-update
by Gilbert Sebenste 16 Jul '10

16 Jul '10

Hello everyone, When I type "sa-update" to get the latest files for Spamassassin, I see this error: ]# sa-update Argument "1.39_01" isn't numeric in subroutine entry at /usr/bin/sa-update line 83. My Google-fu came up with nothing when searching for this error. Am I the only one getting this to happen, or are any of you seeing it as well? Gilbert ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** *******************************************************************************

3 3

Subject=Re:CentOS Simple solution for small network in school
by Paul Schoonderwoerd 16 Jul '10

16 Jul '10

Hello, I would use some (old) pc's as thin clients and have them boot over the network from the server, or from cd. Then, have them make a connection to the server with the NX protocol. Thinstation.org provides all this. Just install FreeNX on the server (yum install) and manage the accounts as local accounts. Can't have it any simpeler than that in my opinion, also for management. Regards, -- Paul Schoonderwoerd Pollux IT - Open Source oplossingen & Netwerk beveiliging http://www.Pollux-IT.nl 0294-283832

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