Discuss August 2007

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284 participants
392 discussions

XEN - Guest WINXP
by Adriano Frare 28 Aug '07

28 Aug '07

Dear Friends, I installed CENTOS 5.0 with XEN (kernel) on Pentium III Celeron 1.2 Ghz, and I would like install WINXP for virtualization. But I don't work, I configurated virtual machine but don't start, Are There how to about it ? Thanks Adriano

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CentOS/RH 5 Samba as PDC+NIS w/o LDAP?
by Scott Ehrlich 28 Aug '07

28 Aug '07

For those who are new or forget - I have a RHEL 5 Server and a few dualboot XP w/SP2 and CentOS 5 systems. The Linux machines were installed straight of CD/DVD, no patches. I was initially going to try a single sign-on to the RH 5 box via LDAP, but RH says it simply isn't possible and I don't know my way around LDAP other than it is a database and exists. So, option 2 is to simply have the RH 5 Server act as a Windows PDC via Samba and use NIS to enable users to log in, all the while, in either situation, having the RH 5 box serve out the user's central home directory - mounted as a drive letter under Windows, or exported under Linux. I've spent much of last week and much of today [trying to learn] LDAP, and today, finally deciding to dump that, but proceeding with Samba as a PDC. For Samba as a PDC - what is the best way to have Win XP Pro w/SP2 successfully authenticate to Samba as a domain controller with encyrpted passwords? And, to have Samba establish the user's home directory as a mapped drive? I've used a barrage of web sites showing various smb.conf confing files but can't yet get my test XP machine to authenticate to the domain I set in my smb.conf file. For NIS - what is the best way to permit the user to log into their account, created on RH 5 server, and have their home directory exported to their workstation? I presume there will be no problem with users simultaneously logging into multiple workstations, be it Linux or Windows? I only bother the list because I have scoured so many web sites, some with a variety of options, I believe I'll get the best answer here. Thanks. Scott

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Creating your own CA and SSL certificates
by Brian Mathis 28 Aug '07

28 Aug '07

I've been looking all over (google, wiki, manuals) for docs, and I can't find any mention of how to set up a CA or certificates *specifically for centos 5 / upstream 5*. There are plenty of generic guides on using openssl for this sort of thing, but I'd like to play nice within the standard structure of this system. I've found the /etc/pki directory, but can't find much information about it. I reviewed the openssl.cnf file, and it looks like it's not completely set up, as many directories it references do not exist on the system. What I'm looking to do is set up my own CA, then make some certificates for use with SSL, and sign them with the CA. This will be used for internal purposes. Any pointers to guides or information would be appreciated. Thanks.

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Kernel parameter "pci=nommconf" "nophet"
by Simon Jolle 28 Aug '07

28 Aug '07

Hi list I am installing a couple IBM System x3650. IBM Support advises to put "pci=nommconf" and "nophet" at installation prompt and later in grub.conf. But what those parameters do? I didn't found any technical documentation. Thanks for sharing background information about those parameters. cheers Simon -- XMPP: sjolle(a)swissjabber.org

1 0

Strange behavior from OO Writer
by Mark Hull-Richter 28 Aug '07

28 Aug '07

I just had the strangest experience I can remember since I ran Windowsas my base OS.... Yesterday I was editing a file in the OO Writer (word processor). Today, it will not open. I copied it to a new file, and it opened fine. I edited it, updated it and closed it. Then I tried deleting the original file and copying the new one to the old name. Won't open. Renamed again, and it opens fine. WTF???? Does OO and/or the writer have name prejudices that develop? Thanks. mhr

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Xen VM vanishes after creation
by Kai Schaetzl 28 Aug '07

28 Aug '07

Just starting and playing around with Xen on Centos 5. I created a new VM (para-virtualized) with the Virtual Machine Manager, installed Centos 5 minimal on it, rebooted after successful installation. The VM console vanishes on shutdown and that's it. The VM id vanishes from the VM Manager and there's no way to get it back. It looks like the new VM doesn't exist. xm list shows only Domain-0, virsh list --all tells me that it cannot list the inactive domains. A restore from the VM file fails as well. The VM image file exists (in /home/vm), a config file for it in /etc/xen exists. But I don't see where the path to the image file might have been saved. Maybe that's the problem? (I know the location can create a problem with SELinux, but I'm currently running permissive and only testing.) Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com

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Getting info on hardware RAID
by Matt Arnilo S. Baluyos (Mailing Lists) 27 Aug '07

27 Aug '07

Hello everyone, I'm doing an audit of all our servers here (there aren't that many maybe around 5-10) and one of the things I'm doing is taking note of each server's hardware specs (processor, memory, etc). I can't seem to figure out how to get the information for the hard drives. The drives are in a hardware RAID5 array and are all SCSI types. I would like to get each physical SCSI drive's specifications (like, disk capacity). Also, we have another server that also uses Hardware RAID and there's a RAID5 and a RAID1 array in there and I would also like to get as much information as I have on them. How do I get this information from the console? Is this possible? I don't have physical access to the servers and can only log in remotely. Thanks, Matt -- Stand before it and there is no beginning. Follow it and there is no end. Stay with the ancient Tao, Move with the present.

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"Site down for maintenance" - How is this accomplished?
by Matt Arnilo S. Baluyos (Mailing Lists) 27 Aug '07

27 Aug '07

Hello everyone, Although we use CentOS primarily on our servers, this query is actually more of a general networking question than something specific to CentOS. In the next week or so, we shall be migrating our in-house servers to a data center. While we're doing that, we'd like to show a "Site down for maintenance" message while the servers that hosts our websites (we have around 15 sites hosted btw), are down. So, how is this accomplished? While I can probably hack something on our name servers, I'm sure there are people on this list that have been doing this and could give some recommendations as to the best practices for this type of task. Thanks in advance, Matt -- Stand before it and there is no beginning. Follow it and there is no end. Stay with the ancient Tao, Move with the present.

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NX on 4.5 vs 5.0
by Scott Moseman 27 Aug '07

27 Aug '07

NX connections to my 4.5 server give "cramped" looking fonts (as if the resolution were wrong). Connections to my 5.0 server look great regardless of the resolution. Both use GNOME. Is there anything I can do to the 4.5 servers to increase the quality of the NX connections? Thanks, Scott

2 2

same Old question: 32 bits VS 64 bits on database performance
by mcclnx mcc 27 Aug '07

27 Aug '07

We have several large projects will use ORACLE 10Gr2 database with CENTOS 4.X. Does anyone have performance report on 32 Bits O.S. (with 32 bit ORACLE) VS 64 bits? Thanks. ____________________________________________________________________________________ 杜絕網路駭客，保障帳號安全 - 馬上設定 Yahoo!奇摩安全圖章http://tw.info.yahoo.com/seal/index.html

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Discuss August 2007