Re: [CentOS-virt] Centos 6.2 / KVM troubles with network

2012-01-14 Thread Radek Bursztynowski
Dnia 2012-01-14, sob o godzinie 15:08 +0100, Dennis Jacobfeuerborn pisze: On 01/14/2012 02:59 PM, Radek Bursztynowski wrote: Hi, I have installed CentOS 6.2 x86_64 and KVM/Qemu and I have some troubles with network. The first case: - The configuration is: -

Re: [CentOS-virt] Centos 6.2 / KVM troubles with network

2012-01-14 Thread Trey Dockendorf
On Sat, Jan 14, 2012 at 8:41 AM, Radek Bursztynowski ra...@bursztynowski.waw.pl wrote: ** Dnia 2012-01-14, sob o godzinie 15:08 +0100, Dennis Jacobfeuerborn pisze: On 01/14/2012 02:59 PM, Radek Bursztynowski wrote: Hi, I have installed CentOS 6.2 x86_64 and KVM/Qemu and I have some

Re: [CentOS-virt] Centos 6.2 / KVM troubles with network

2012-01-14 Thread Radek Bursztynowski
Dnia 2012-01-14, sob o godzinie 11:11 -0600, Trey Dockendorf pisze: On Sat, Jan 14, 2012 at 8:41 AM, Radek Bursztynowski ra...@bursztynowski.waw.pl wrote: Dnia 2012-01-14, sob o godzinie 15:08 +0100, Dennis Jacobfeuerborn pisze: On 01/14/2012 02:59

Re: [CentOS] Rozważania odnośnie storage?

2012-01-14 Thread Rafał Radecki
Sorry, mail was mentioned for polish centos list. Best regards, Rafał. W dniu 13 stycznia 2012 21:55 użytkownik fakessh fake...@fakessh.eu napisał: use the tool googletranslate is well for that cheers Le 2012-01-13 20:43, Diego Sanchez a écrit : Rafał Radecki : Please, write in english

Re: [CentOS] Rozważania odnośnie storage?

2012-01-14 Thread Karanbir Singh
On 01/14/2012 09:41 AM, Rafał Radecki wrote: Sorry, mail was mentioned for polish centos list. We dont actually have a polish list, but if there is interest: we should create one here : http://lists.centos.org/mailman/listinfo/ all that is needed are a couple of people, presently visible in

[CentOS] Storage - posibilities?

2012-01-14 Thread Rafał Radecki
Hi all. Currently I am administering a mail cluster in which messages are stored on software RAID shared with NFS. There are several NFS servers, every one of them exports a part of all mail files for a specific frontend with postfix. We are thinking about replacing these storage hosts with one

Re: [CentOS] Storage - posibilities?

2012-01-14 Thread John R Pierce
On 01/14/12 1:56 AM, Rafał Radecki wrote: We are thinking about replacing these storage hosts with one solution, maybe a storage array with appropriate disk space and I/O capacity. What are pros and cons of that solution? Do storage arrays have appropriate I/O capacity (X*software RAID)? Does

Re: [CentOS] Storage - posibilities?

2012-01-14 Thread Nicolas Thierry-Mieg
John R Pierce wrote: On 01/14/12 1:56 AM, Rafał Radecki wrote: We are thinking about replacing these storage hosts with one solution, maybe a storage array with appropriate disk space and I/O capacity. What are pros and cons of that solution? Do storage arrays have appropriate I/O capacity

[CentOS] iptable rule for bypassing netfilter queue for a matching address.‏

2012-01-14 Thread Arif Tuhin
I have two iptable rules for userspace modification : iptable -t mangle -A PREROUTING -p udp --dport 9090 -j NFQUEUE iptable -t mangle -A OUTPUT -p udp --sport 9090 -j NFQUEUE I have the following network setup: client Linux Box or router-server. What

Re: [CentOS] Is avahi essential?

2012-01-14 Thread Timothy Murphy
Gordon Messmer wrote: Wait a sec, I have that setup (just mediatomb instead of ps3mediaserver) and there's no avahi on my network. Yet the PS3 is perfectly capable of discovering and using the DLNA server. Avahi allows the workstation running it to advertise and solicit mDNS information.

Re: [CentOS] Is avahi essential?

2012-01-14 Thread Timothy Murphy
Gordon Messmer wrote: On 01/11/2012 03:42 AM, Timothy Murphy wrote: As far as I can see, it is some sort of rival to dhcpd. No, DHCP is used to assign network addresses and routes (and other optional configuration items). According to the Wikipedia entry for mDNS, Using mDNS allows to

Re: [CentOS] Is avahi essential?

2012-01-14 Thread Stephen Harris
On Sat, Jan 14, 2012 at 12:29:05PM +, Timothy Murphy wrote: Gordon Messmer wrote: On 01/11/2012 03:42 AM, Timothy Murphy wrote: As far as I can see, it is some sort of rival to dhcpd. No, DHCP is used to assign network addresses and routes (and other optional configuration

Re: [CentOS] skype on 5.7

2012-01-14 Thread Ljubomir Ljubojevic
On 01/14/2012 12:35 AM, Lars Hecking wrote: Yves Bellefeuille writes: On Friday 13 January 2012, kengeb...@mousecar.com wrote: This was with skype_static-2.2.0.35, the one recommended for CentOS version 5.x in the HOW-TO. So the how-to is either wrong or it's missing some information.

Re: [CentOS] Is avahi essential?

2012-01-14 Thread Timothy Murphy
Stephen Harris wrote: As far as I can see, it is some sort of rival to dhcpd. No, DHCP is used to assign network addresses and routes (and other optional configuration items). According to the Wikipedia entry for mDNS, Using mDNS allows to determine the IP address of a host without

Re: [CentOS] Is avahi essential?

2012-01-14 Thread Mikael Fridh
On Jan 14, 2012 3:18 PM, Timothy Murphy gayle...@eircom.net wrote: Stephen Harris wrote: As far as I can see, it is some sort of rival to dhcpd. No, DHCP is used to assign network addresses and routes (and other optional configuration items). According to the Wikipedia entry for

Re: [CentOS] Is avahi essential?

2012-01-14 Thread Stephen Harris
On Sat, Jan 14, 2012 at 02:17:56PM +, Timothy Murphy wrote: OK, I should have said a rival to ARP + dhcp. But it's not; ARP+dhcp is all about mapping MAC-IP. mDNS is dealing with name-IP. mDNS competes with _DNS_; it's a way of doing local DNS without needing a DNS server. As I see it,

Re: [CentOS] Is avahi essential?

2012-01-14 Thread Marc Deop
ARP: In a traditional ethernet network, when you try to connect to a machine on your local network with the number 10.20.30.40 then your machine will send out an ARP broadcast packet whois 10.20.30.40 and then the machine in question will respond with its MAC address and then the machines can talk

Re: [CentOS] Is avahi essential?

2012-01-14 Thread Les Mikesell
On Sat, Jan 14, 2012 at 8:17 AM, Timothy Murphy gayle...@eircom.net wrote: Isn't that more or less what I said above? It's almost the opposite.  mDNS does name-IP and let's people find other machines; DHCP does MAC-IP and let's a machine find _itself_. Or, another way of looking at it.  

Re: [CentOS] Is avahi essential?

2012-01-14 Thread Les Mikesell
On Sat, Jan 14, 2012 at 8:57 AM, Marc Deop damnsh...@gmail.com wrote: ARP: In a traditional ethernet network, when you try to connect to a machine on your local network with the number 10.20.30.40 then your machine will send out an ARP broadcast packet whois 10.20.30.40 and then the machine in

Re: [CentOS] skype on 5.7

2012-01-14 Thread ken
On 01/13/2012 05:59 PM Yves Bellefeuille wrote: On Friday 13 January 2012, ken geb...@mousecar.com wrote: This was with skype_static-2.2.0.35, the one recommended for CentOS version 5.x in the HOW-TO. So the how-to is either wrong or it's missing some information. The How-To recommends

Re: [CentOS] Storage - posibilities?

2012-01-14 Thread Devin Reade
Rafa³ Radecki radecki.ra...@gmail.com wrote: We are thinking about replacing these storage hosts with one solution, maybe a storage array with appropriate disk space and I/O capacity. As John had mentioned the solution really depends on a complete analysis of your requirements (average and

Re: [CentOS] skype on 5.7

2012-01-14 Thread Yves Bellefeuille
On Saturday 14 January 2012, ken geb...@mousecar.com wrote: Thanks. You're correct. And it runs... sort of. It loads, but won't connect. There's some kind of networking problem. I'm trying to figure out how to isolate the problem, i.e., where on my network the connection is failing.

Re: [CentOS] skype on 5.7

2012-01-14 Thread Yves Bellefeuille
On Saturday 14 January 2012, Ljubomir Ljubojevic off...@plnet.rs wrote: My own rpm, static in rpm, with avatars added: http://rpms.plnet.rs/plnet-centos5-i386/RPMS.plnet/skype-2.1.0.81-1.e l5.noarch.rpm Is this the kind of package that's appropriate for the CentOS contrib repository? --

Re: [CentOS] skype on 5.7

2012-01-14 Thread Ljubomir Ljubojevic
On 01/14/2012 08:08 PM, Yves Bellefeuille wrote: On Saturday 14 January 2012, Ljubomir Ljubojevicoff...@plnet.rs wrote: My own rpm, static in rpm, with avatars added: http://rpms.plnet.rs/plnet-centos5-i386/RPMS.plnet/skype-2.1.0.81-1.e l5.noarch.rpm Is this the kind of package that's

Re: [CentOS] LSI/3ware 9750-4i and multipath I/O

2012-01-14 Thread Vahan Yerkanian
Thanks for the comments folks, your points are damn right. I believe what I experienced was the data corruption via stale caches.. So much for not opening up the case (actually for the first time, I resisted due to the lack of time) and not checking if these controllers are somehow linked

Re: [CentOS] [SOLVED] blue screen instead of login screen

2012-01-14 Thread Frank Cox
On Fri, 13 Jan 2012 17:01:16 -0600 Frank Cox wrote: I haven't actually tried to place an icon on there. I do know that I can place an application window anywhere on the desktop with no problem (that I've noticed so far). I'll try putting an icon there when I'm next at that office and see

Re: [CentOS] LSI/3ware 9750-4i and multipath I/O

2012-01-14 Thread John R Pierce
On 01/14/12 2:32 PM, Vahan Yerkanian wrote: Thanks for the comments folks, your points are damn right. I believe what I experienced was the data corruption via stale caches.. So much for not opening up the case (actually for the first time, I resisted due to the lack of time) and not

Re: [CentOS] LSI/3ware 9750-4i and multipath I/O

2012-01-14 Thread John R Pierce
On 01/14/12 2:32 PM, Vahan Yerkanian wrote: Going back to the LSI website to check if these 9750 have an option to link their caches into one... I was curious, *all* the LSI sAS RAID cards say 'single controller multipathing', both the megaraid cards and the 3ware cards (I'm setting up a

Re: [CentOS] LSI/3ware 9750-4i and multipath I/O

2012-01-14 Thread Vahan Yerkanian
On Jan 15, 2012, at 2:52 AM, John R Pierce wrote: who built/configured this system? Someone you don't know. ;) A local distributor. The system was shipped with MS OS with MPIO ISCSI targets installed claiming to be tested. Of course I had to remove that offending OS and install CentOS

Re: [CentOS] LSI/3ware 9750-4i and multipath I/O

2012-01-14 Thread Vahan Yerkanian
On Jan 15, 2012, at 3:52 AM, John R Pierce wrote: On 01/14/12 2:32 PM, Vahan Yerkanian wrote: Going back to the LSI website to check if these 9750 have an option to link their caches into one... I was curious, *all* the LSI sAS RAID cards say 'single controller multipathing', both the

Re: [CentOS] LSI/3ware 9750-4i and multipath I/O

2012-01-14 Thread John R Pierce
On 01/14/12 3:55 PM, Vahan Yerkanian wrote: At the moment I have two 9750-4i installed, each having a sff8087 x4 cable going to the same backplane containing dual-port sas disks. This was supposed to be a load balanced, multi-controller failover setup. AFAIK the only way to achieve that is

Re: [CentOS] Storage - posibilities?

2012-01-14 Thread Lisandro Grullon
I hope you will be clustering those storage arrays since email is such a vital service for any organization. What are your current choices? I don't think there would be any major issues as long as you plan you current and long term capacity needs. Let us know what are your plans at the moment.

Re: [CentOS] Is avahi essential?

2012-01-14 Thread Gordon Messmer
On 01/14/2012 04:19 AM, Timothy Murphy wrote: If running mediatomb avoids the necessity for Avahi, can you give a concrete example of a situation where Avahi_is_ needed? I did. If two PCs were running a collaborative editor, like gobby, they'll use mDNS to find each other. Chat clients such