Discuss June 2009

discuss@lists.centos.org

286 participants
328 discussions

dm-ioband RPM packages
by Ryo Tsuruta 29 Jun '09

29 Jun '09

Hi all, I'm pleased to announce that the new dm-ioband RPM package (v1.12.0) has been released at: http://sourceforge.net/apps/trac/ioband/wiki/dm-ioband dm-ioband provides disk bandwidth control on per partition, per user, per process and per virtual machine (such as KVM or Xen) basis. The RPM packages are for Red Hat Enterprise Linux 5.x and CentOS 5.x. They were tested on RHEL 5.2 and CentOS 5.3 and will also work on other 5.x versions. The major change of this release is that a new bandwidth control policy "range-bw" is supported. This policy is developed by Dong-Jae Kang, and it allows users to set a minimum and maximum I/O bandwidth by absolute numbers. The minimum I/O bandwidth should be guaranteed for stable performance or reliability of specific process groups, and I/O bandwidth over the maximum limit should be throttled to protect the limited I/O resource from over-provisioning in unnecessary usage or to reserve the I/O bandwidth for another use. Please visit our website for more information. http://sourceforge.net/apps/trac/ioband/wiki/dm-ioband Any comments and suggestions are welcome! Thanks, Ryo Tsuruta

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Set hostname via DHCP ?
by Niki Kovacs 29 Jun '09

29 Jun '09

Hi. I just setup one of my machines as a DHCP server. I'd like it to handle the hostnames of clients. Don't know if this is an orthodox thing to do (feel free to add your comments :oD). Here's the server's relevant lines of dhcpd.conf: --8<------- ... # Envoyer les noms d'hôtes aux clients use-host-decl-names on; # Adresses statiques host babasse { hardware ethernet 00:0d:61:ae:6b:8f; fixed-address 192.168.1.249; } --8<------- Now the question is: how should the configuration look like on the client side, so the hostname gets effetively fetched from the DHCP server? During the initial install, I assigned hostnames manually to every machine. Cheers, Niki Kovacs

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Re: [CentOS] Building Custom Kernel - CentOS 4.4
by Per Qvindesland 29 Jun '09

29 Jun '09

Hi Do you have the correct kernel source installed? Regards Per E-mail: per(a)norhex.com [1] http://www.linkedin.com/in/perqvindesland [2] --- Original message follows --- SUBJECT: Re: [CentOS] Building Custom Kernel - CentOS 4.4 FROM: Kurian Thayil TO: "CentOS mailing list" DATE: 29-06-2009 12:05 Hi Ned, The package cpp was already installed. [root@astind02 customKernelcompile]# rpm -qa |grep cpp cpp-3.4.6-3 [root@astind02 customKernelcompile]# rpm -qa |grep gcc gcc-c++-3.4.6-3 libgcc-3.4.6-3 gcc-3.4.6-3 Any hint on this?? Regards, Kurian Thayil. On Mon, Jun 29, 2009 at 3:08 PM, Ned Slider wrote: Kurian Thayil wrote: > Hi All, > > I am having issue when trying to build a custom kernel in CentOS 4.4. > Current Kernel Version is 2.6.9-42.ELsmp and the server is HP Proliant DL380 > G3. I downloaded the source rpm and then installed it. Gave the command, > rpmbuild -bp --target=i686 /usr/src/redhat/SPECS/kernel-2.6.spec. But it > throws me an error after patch operations. The following is the error. > > `/usr/src/redhat/SOURCES/kernel-2.6.9-i586-smp.config' -> > `./kernel-2.6.9-i586-smp.config' > `/usr/src/redhat/SOURCES/kernel-2.6.9-i586.config' -> > `./kernel-2.6.9-i586.config' > `/usr/src/redhat/SOURCES/kernel-2.6.9-i686-hugemem.config' -> > `./kernel-2.6.9-i686-hugemem.config' > `/usr/src/redhat/SOURCES/kernel-2.6.9-i686-smp.config' -> > `./kernel-2.6.9-i686-smp.config' > `/usr/src/redhat/SOURCES/kernel-2.6.9-i686.config' -> > `./kernel-2.6.9-i686.config' > + for i in '*.config' > + mv kernel-2.6.9-i586-smp.config .config > ++ echo kernel-2.6.9-i586-smp.config > ++ cut -d- -f3 > ++ cut -d. -f1 > ++ sed -e s/i.86/i386/ -e s/s390x/s390/ -e s/ppc64.series/ppc64/ > + make ARCH=i386 nonint_oldconfig > gcc: installation problem, cannot exec `cc1': No such file or directory > make[1]: *** [scripts/basic/fixdep] Error 1 Looks like you don't have cpp, the C preprocessor, installed. Try 'yum install cpp'. _______________________________________________ CentOS mailing list CentOS(a)centos.org [4] http://lists.centos.org/mailman/listinfo/centos [5] _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos Links: ------ [1] http://webmail.norhex.com/# [2] http://www.linkedin.com/in/perqvindesland [3] mailto:ned@unixmail.co.uk [4] mailto:CentOS@centos.org [5] http://lists.centos.org/mailman/listinfo/centos

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Re: [CentOS] Web photo gallery options [Solved]
by Scott Silva 29 Jun '09

29 Jun '09

on 6-26-2009 12:27 AM Sorin Srbu spake the following: >> -----Original Message----- >> From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On > Behalf >> Of Les Mikesell >> Sent: Thursday, June 25, 2009 5:55 PM >> To: CentOS mailing list >> Subject: Re: [CentOS] Web photo gallery options >> >>> Seems like I also did not mention it must be free, as in not costing >>> anything. 8-) >>> >>> Though I dream of a six-disk NAS filled with 1TB-drives... 8-/ >> The point of these devices is that the cost ends up being negative >> compared to running stuff on a full-featured computer powered up all the >> time. Plus, they integrate the media server, so upnp/DLNA clients like >> the PS3/Xbox360 and an increasing number of network-connected TV's can >> view the same pictures with their built in protocol without yet another >> setup. > > That might be interesting if you have all that flashy TV:s and stuff. My > computer-based PVR, running WinXP works fine, as does my Xboxes. > > Anyway, I installed Gallery2 yesterday evening and finished up way late. It > works sort of. I feel I need to read up on security best-practices with > regard to mysql and also how to deny folder listings. As it is now I think > mysql is seriously insecure for world access, and the folder listing shows > the gallery2 contents to the world. I'll look into it this weekend. > > Thanks all who suggested and hinted me! > If mysql and the gallery soft ware are on the same server, then you don't need to open up mysql to the world. The gallery software should be able to access the DB over the localhost address, and you could firewall off outside access to mysql.

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Conga Ricci Luci "Add a Virtual Service" tab missing or disabled
by Gabriel Rosca 29 Jun '09

29 Jun '09

Hi guys ... I have a problem ... here is my settup luci xen0 xen1 [root@xen1 ~]# clustat Cluster Status for XEN_Cluster @ Mon Jun 29 03:31:23 2009 Member Status: Quorate Member Name ID Status ------ ---- ---- ------ xen0.genx.local 1 Online xen1.genx.local 2 Online, Local I can migrate live ... domU between the 2 xen`s ... my problem is ... in the Luci I don`t have the "Add a Virtual Service" I have no idea how I enable that .... Here is my cluster.conf <?xml version="1.0"?> <cluster alias="XEN_Cluster" config_version="4" name="XEN_Cluster"> <fence_xvmd/> <fence_daemon clean_start="0" post_fail_delay="0" post_join_delay="3"/> <clusternodes> <clusternode name="xen0.genx.local" nodeid="1" votes="1"> <fence/> </clusternode> <clusternode name="xen1.genx.local" nodeid="2" votes="1"> <fence/> </clusternode> </clusternodes> <cman expected_votes="1" two_node="1"/> <fencedevices/> <rm> <failoverdomains> <failoverdomain name="Boss_Xen0" nofailback="0" ordered="1" restricted="0"> <failoverdomainnode name="xen0.genx.local" priority="1"/> <failoverdomainnode name="xen1.genx.local" priority="10"/> </failoverdomain> <failoverdomain name="Boss_Xen1" nofailback="0" ordered="1" restricted="0"> <failoverdomainnode name="xen0.genx.local" priority="10"/> <failoverdomainnode name="xen1.genx.local" priority="1"/> </failoverdomain> </failoverdomains> <resources/> </rm> </cluster> Thank you Gabe

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IPVS support in current kernel
by fmb fmb 29 Jun '09

29 Jun '09

Is the IP Virtual Server available by default in the stock 2.6.18-128.1.14.el5? Or shall I compile my own kernel? I did check "config-2.6.18-128.1.14.el5" yet I am not that sure! :) Usually how long does it take to compile the kernel on a modern machine? I am using CentOS 5.3 32 bit thnx

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Re: [CentOS] External USB Drive partitioning, formatting and configuring Bacula server
by Sagar Koirala 29 Jun '09

29 Jun '09

Thanks for your help Sean, did all the steps you mentioned. One thing I don't understand, when partitions are created, why does Linux number it awkwardly? For example, I created 1 Primary partition of 10% disk, then created 1 Extended partition of 90% disk. Inside that extended partition, I created 3 logical partitions 33% each. It went numbering sdb1, sdb5, sdb6 and sdb7. Where's the hell 2,3 and 4? Anyways, I've got my partitions now and formatted them so, it's all good. Thanks for your help with this. Next, as I went through Bacula's pages, I found that they mostly use tape drives for backup....ugh.......how can I use my usb partitions with Bacula? Any ideas? Thanks again! Cheers :)

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External USB Drive partitioning and formatting
by Sagar Koirala 29 Jun '09

29 Jun '09

Hi, I just bought a Seagate 1TB USB drive thinking that I could create a few partitions in it, format in ext3 fs, then configure bacula to setup a backup server in my CentOS box and backup my windows and mac clients. I have plugged the drive and mounted in /mnt/usbdrive and is seen as /dev/sdb1 by the OS. The output of df command is: [root@Production ~]# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/VolGroup00-LogVol00 74859680 16053996 55002960 23% / /dev/sda1 101086 27066 68801 29% /boot none 480176 0 480176 0% /dev/shm /dev/sdb1 976760032 97808 976662224 1% /mnt/usbdrive I am thinking of having three partitions instead of just one whole big 1 TB thing, and then format all three partitions in ext3. I tried doing fdisk, but cylinders are always confusing for me. Is there any GUI tool that could help me achieve this as I am newbie to Linux and not very confident with commands. Any suggestions would be greatly appreciated. Thanks.

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usb
by mattias 29 Jun '09

29 Jun '09

are usb disable in centos 5.3 if so how to enable?

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SOLVED: CentOS 5.3 and NTFS
by Alan McKay 28 Jun '09

28 Jun '09

Bingo! The yum update took care of it. Oddly enough, until I started my new job 2 months ago I'd always been in the habit of running 'yum -y update' first thing after installing Fedora or CentOS. But the product software we develop does not like that very much so I got out of the habit very quickly after blowing up a machine by doing that :-/ Fortunately it was not a production box. But I do recall actually that I'd done it on my desktop at one point shortly after starting. Thanks all! I'm going to probably re-install my own Vista box here at home with Centos 5.3 64 bit, so I'll try the other method on it. Um, maybe something for a whole new thread, but does CentOS support eSATA? My desktop at home here has a port for it, and the USB drive in question does eSATA as well. Makes it SOOOO much faster when connected to my box! -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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Discuss June 2009