Discuss

discuss@lists.centos.org

34758 discussions

Re: [CentOS] virtualization on the desktop a myth, or a reality?
by Les Mikesell 02 Mar '11

02 Mar '11

On 3/2/2011 2:06 PM, Rudi Ahlers wrote: > >>> Differently put, we already do this with servers. One big& fast Quad >>> XEON can run many client's Virtual Machines, very easily. And many of >>> those Virtual Machines host a few hundred websites, thus saving a lot >>> on rack space, electricity, etc, etc. >> >> Servers are normally optimized with lots of disk spindles to spread >> multi-user use of the one remaining slow resource around. > > True, but in a one-user-one-drive (or 2 drives in RAID1) setup, the > disk I/O wouldn't be a problem, or the limiting factor. I thought some of your scenarios involved doing things in both os's at once. Which will make them want the disk head to be in different places at the same time. >> Give the VM its own disk and it won't have much impact on the host. >> You'll probably still want to run video-intense things natively, though. >> And if you aren't a developer doing throwaway tests, what's the point >> of using a VM for resource-intensive things anyway? > > > There are many reasons why one would do this kind of things. Just > thinking of my normal day-to-day work, I often start-up a new VM to > test certain functionality of some software package, without affecting > anything on my PC. If it is at work, why not park the VM on a server that is probably better equipped? > My laptop runs Windows 7 at this stage, purely for > Quickbooks and a few other Windows-only applications. So, in this case > it would be nice to have Windows running permanently on my PC which > will allow the accounts person to still access it remotely on her PC > and I can still do stuff in Quickbooks as needed. But, I would prefer > real-time access. Then why not run it as the host? It probably handles sleep mode and waking up on different networks better than Centos anyway. Or as a VM, park it on a server where everyone who needs access can reach it remotely. > I think the major problem here is that the tools at hand, i.e. XEN + > Virtual Machine Manager (or for that matter VirtualBox / VMWare / etc) > isn't yet optimized for this kind of usage. > > I guess we need better VGA-passthrough drivers, and / or a more > optimized interface. Accessing the VM's via VNC / Remote Desktop / XN > / etc is also probably also a possibility. Have you tried vmware player with vmware tools installed in the guest for comparison? Or NX connecting to freenx in the case of a Linux guest? -- Les Mikesell lesmikesell(a)gmail.com

2 1

Re: [CentOS] RFC: video call recommendations
by Davis, Spencer 02 Mar '11

02 Mar '11

It does voice and video chat. There is a pluggin for the chrome browser. Sent from my Android phone using TouchDown (www.nitrodesk.com) -----Original Message----- From: John R Pierce [pierce(a)hogranch.com] Received: Wednesday, 02 Mar 2011, 2:38pm To: centos(a)centos.org [centos(a)centos.org] Subject: Re: [CentOS] RFC: video call recommendations On 03/02/11 10:03 AM, m.roth(a)5-cent.us wrote: > I run CentOS at home, not just at work... Anyway, I've got a friend in > Chicago who recently mentioned that they'd like to do videocalling. Now, > I've heard of skype, but a quick google says there's some problems on > Linux. I also see ekiga, and aMSN. > > Anyone here run such a beast, and have any recommendations or comments? > Obviously, must work on CentOS, not Ubuntu, or Fedora, or > TheLatestCoolestDistroThisMonth.... I believe google chat aka google talk works on linux too, and it has a video option. can't say I've tried it. _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

1 0

Error: Missing Dependency: libgnokii.so.4()(64bit) is needed by package 6:kdepim-3.5.10-2.el5.x86_64 (installed)
by Chris Ross 02 Mar '11

02 Mar '11

Hi Y'All, Yum update on CentOS 5 has for the last week or so started giving me the following errors root@neodymium 16:03:46 ~ # nice yum upgrade Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.sov.uk.goscomb.net * base: mirror.sov.uk.goscomb.net * epel: mirror01.th.ifl.net * extras: mirror.sov.uk.goscomb.net * rpmfusion-free-updates: mirror01.th.ifl.net * rpmfusion-nonfree-updates: mirror01.th.ifl.net * rpmfusion-nonfree-updates-testing: mirror01.th.ifl.net * updates: mirror.as29550.net Setting up Upgrade Process Resolving Dependencies --> Running transaction check --> Processing Dependency: libgnokii.so.4()(64bit) for package: kdepim ---> Package gnokii.x86_64 0:0.6.29-1.el5 set to be updated --> Processing Dependency: libical.so.0()(64bit) for package: gnokii --> Running transaction check --> Processing Dependency: libgnokii.so.4()(64bit) for package: kdepim ---> Package libical.x86_64 0:0.46-2.el5 set to be updated --> Finished Dependency Resolution 6:kdepim-3.5.10-2.el5.x86_64 from installed has depsolving problems --> Missing Dependency: libgnokii.so.4()(64bit) is needed by package 6:kdepim-3.5.10-2.el5.x86_64 (installed) Error: Missing Dependency: libgnokii.so.4()(64bit) is needed by package 6:kdepim-3.5.10-2.el5.x86_64 (installed) You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest None of the three workarounds listed work. Is there any action I should take or should I just wait for the problem to be resolved "upstream"? Suggestions welcomed, I would be grateful for the benefit of your collective wisdom. Many thanks, Chris R.

3 7

IP6 Anyone?
by Always Learning 02 Mar '11

02 Mar '11

Today I received an allocation of IP6 addresses for some servers. I can 'play' with the last 2 of the 8 IP6 address segments. I always thought, mistakenly, IP6 was 6 segments, because it was IP6. IP4 had 4 segments. However IP6 is actually IP version 6 and it has 8 segments. The other interesting discovers are: :: means one or more 0 segments, example :: can mean 0:0:0: or just 0:0: or even 0:0:0:0: and, a real smile making favourite, is IP6 breaks Micro$oft's set-up. Micro$oft can not handle actual IP6 addresses because : is forbidden by Micro$oft in its 'Uniform Naming Convention (UNC) path names'. Naturally Micro%oft has invented a 'work around' solution. http://en.wikipedia.org/wiki/IPv6_address#Literal_IPv6_addresses_in_UNC_pat… Because : is sometimes used in an address to indicate the start of a port number, example http://www.anyonejunk.com:1234, the IP6 address can be enclosed within [ ] with the port number remaining outside the square brackets. How will IP6 affect the software in Centos and what gradual changes should one make on the transition to a major Internet change with the ending of NAT for IP4 addresses and a more secure (IPsec) end to end transmission protocol? -- With best regards, Paul. England, EU.

5 11

Re: [CentOS] Looking for a facebook / twitter desktop-like APP for general use
by Les Mikesell 02 Mar '11

02 Mar '11

On 3/2/11 2:24 AM, Rudi Ahlers wrote: > > Our church need(ed) to send info to clients "over the wire" in a > guarenteed fashion. They already have a website, which is > under-utilized / not visited as often by every one. RSS didn't work > out as it should / could since many non-IT-savy-folk don't know what > it it, how it works, or how to use it. Jabber is a no-go for this same > reason. > > The church needs to send weekly news (events, updates, announcements, > etc) to their clients. Email doesn't work well since a lot of it gets > send to spam folder or simply never reach the end users since places > like Yahoo block anything and everything that doesn't originate from > their own network. SMS isn't very effective either. Just pay one of the commercial bulk email/newsletter senders to deliver it. They know how to avoid being marked as spam. > So I was basically looking for something, which works in the same way > as Google Notify (let's use a different example) which logs onto a > server, queries the DB for info and displays it to the user. But, I'm > not a C++ / C# / JS programmer, so I can't write this myself. I hoped > maybe someone knew of something that I could use, maybe a framework or > something to build something like this? Any/all of the examples people of jabber/rss/web server would work on the server side. The piece you are missing is a way to make the user run the appropriate client app. > Someone suggested Adobe Air, but I don't know, or code Adobe Air. > > These guys do something in the lines of what I want: > http://www.zanews.co.za/category/daily-news/ - if you download the > desktop player on the right-side you'll see. > http://www.nuron.co.za/Nuron/index.aspx also has something similar, > but you need to use their proprietory backend to communicate with the > end users and they force banners adds onto each client desktop. > > I need something that isn't bound to, or limit within a certain company. > > Maybe I'm asking too much? Yes, if the end user has to start an app, they could just as easily have an icon on the desktop that is a link to your web page. Or they could put your rss feed url into google reader and see it with their web or mobile aggregater. But they probably won't do that either. Email is probably the best shot at something where they don't have to start something special. Maybe you could give out USB sticks with apps that will hijack their computers... -- Les Mikesell lesmikesell(a)gmail.com

1 0

Looking for a facebook / twitter desktop-like APP for general use
by Rudi Ahlers 02 Mar '11

02 Mar '11

Hi, I'm looking for a way to communicate with end users via a desktop app that works similar to Facebook / Twitter desktop / iPhone / SmartPhone apps, and hope someone can help me with this? Basically I need to convey information (newsletters, news flashes / download links / etc to users, but via a desktop application. think of "[URL=http://toolbar.google.com/gmail-helper/notifier_windows.html[/URL]" or [URL="http://www.mixero.com/"]Mixero[/URL], or even how online game manufacturers communicate with game player via a UI / game interface. BUT, and here's the but, I need something that I can customize a bit to work with our specific setup. The basic idea is to have an admin backup, which can run on PHP + MySQL (we can code this ourself) and then app can get whatever content is in the Database on the client's desktop. Can anyone point me into any direction for something like this? Ideally it should work on Windows, Linux & MAC - so I'm thinking something written in C++ / C# / GTK+ / etc with different OS installers would be ideal. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

8 11

CentOS MD RAID 1 on Openfiler iSCSI
by Emmanuel Noobadmin 01 Mar '11

01 Mar '11

Has anybody tried or knows if it is possible to create a MD RAID1 device using networked iSCSI devices like those created using OpenFiler? The idea I'm thinking of here is to use two OpenFiler servers with physical drives in RAID 1, to create iSCSI virtual devices and run CentOS guest VMs off the MD RAID 1 device. Since theoretically, this setup would survive both a single physical drive failure as well as a machine failure on the storage side with a much shorter failover time than say using heartbeat. Or is this yet another stupid idea again from me? :D

9 36

python stack size in centos 5.5
by aurfalien＠gmail.com 01 Mar '11

01 Mar '11

Hi all, Centos 5.5 comes with Python 2.4.3. I wish to increase the env size for my Python shells and found this although it pertains to Python 2.5; thread.stack_size([size]) Any one have some pearls for me wether this works in <2.5 or the best way to give my Python shells more memory? I'm scheduled to tackle this tonight and would like to prep myself. Thanks in advance, - aurf

1 0

Canon MX870
by Boris Epstein 01 Mar '11

01 Mar '11

Hello listmates, I am considering getting this multi-functional printer (printer/scanner/fax): http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=… Has anybody used it under Linux? What was that experience like? Thanks. Boris.

4 5

Alternative to cPanel
by Trutwin, Joshua 01 Mar '11

01 Mar '11

Hello all, I'm looking to setup a new CentOS box for a buddy of mine who wants to do hosting on a server via CoLo, Years ago I whipped up a CP of my own on a Debian box he colo'd running a basterdized qmail/tinydns and custom built httpd/mysql/etc (I was young). It worked ok but time to move on and I don't have time to maintain all those packages. I also don't have time to write another CP or port my PoS to it. I'm also just going to use the default packages (bind, postfix, etc) instead of the DJB stuff. Main requirements are fairly straightforward: 1. able to add/manage domains, ssl cert management, manage DNS records 2. able to manage email accounts and anti-spam settings 3. able to add/manage mysql and pgsql (nice to have) 4. user management - ftp/ssh accounts, password change, etc. 5. nice to have: add a wordpress blog / xcart store to a site 6. nice to have: users have own login to do some of the above for their domain only 7. nice to have: integrated website stats (awstats or equiv) 8. not optional - should have a focus on security Stuff like viewing logs, automated billing, hosting plans, managing backups, bandwidth monitoring, uploading web pages, managing server patches, adding new software, etc. I don't mind leaving off or doing myself. Willing to pay a license, but not a huge budget. I was leaning towards webmin/virtualmin but thought I'd check with this list for any suggestions. Had bad experiences with Plesk from a while ago so leaving that off the table. We have experience with cPanel through another fail host, it's ok but too much stuff and too expensive. Josh

17 24

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Discuss