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34752 discussions

Advice on upgrading packages
by Fajar Priyanto 26 Mar '06

26 Mar '06

Hi all, Regarding packages updates using yum, all this time I only upgrade packages that I think is important, but also at the same time is having little risk of breaking my installation. Such as httpd, ssh, etc. But there are many packages that waits to be updated such as lvm, mdadm, etc. I'm worried that it will break my installation (web and mail server). Like the saying "if it ain't broken, don't fix it". Is there any pitfall that I should avoid of when upgrading packages using yum? Or is it completely save to let yum update the machine automatically? Thank you very much, -- Fajar Priyanto | Reg'd Linux User #327841 | Linux tutorial http://linux2.arinet.org 13:51:01 up 4:41, 2.6.15-1.1830_FC4 GNU/Linux Let's use OpenOffice. http://www.openoffice.org

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Radeon 7000 woes, redux
by Paul Heinlein 26 Mar '06

26 Mar '06

The Radeon 7000 and the X.org radeon driver have had some well publicized difficulties since CentOS 4.2 (aka RHEL4U2). In short, the 7000 would hang miserably, often completely killing the console. See, e.g., https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=170008 On Nov 29, 2005, Red Hat's Mike Harris announced the testing release of xorg-x11-6.8.2-1.EL.13.21, which ended up solving the problems with my video subsystem. That ticket was later marked closed with an errata release of the xorg-x11 packages: http://rhn.redhat.com/errata/RHBA-2006-0072.html I installed that upgrade (xorg-x11-6.8.2-1.EL.13.25) when it was made available via yum, but never not around to rebooting until the recent 4.3 release. My (PCI, not AGP) Radeon 7000 went on strike again! The console crashes aren't as fatal this time around -- the screen is a mess, but the keyboard and mouse still respond to input (though I can't see what I'm typing) -- but they still render the console unusable. For now, I've reinstalled the radeon_drv.so from Mike Harris' xorg-x11-6.8.2-1.EL.13.21 interim release -- which, thankfully, I've kept around, because they are no longer available in Mike's chunk of people.redhat.com -- and that's solved the problem. I'll try to send a real bug report once I can isolate what may have changed between .21 and .25, but for now I thought I'd just send a general problem description. -- Paul Heinlein <heinlein(a)madboa.com>

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Naming packages in custom yum repo.
by Jason Ish 26 Mar '06

26 Mar '06

I need to setup a custom yum repo to supply some packages that are not in CentOS, and some that are but have been patched and/or are different versions. Not much of a big deal. In order to limit conflict with CentOS packages, I am using a prefix other than /usr. All my packages that also have existing versions in CentOS are installed under this new prefix to prevent any conflict with the CentOS package. My main issue is I would like yum (and rpm) to be happy with this coexistence. Is the only way to do this by giving my packages a different name rather than just twiddling the release number? For example, CentOS has libpcap-0.8.3, I need to supply a patched libpcap-0.8.4 but I don't want it to replace the 0.8.3 package, so I've modified the package name to be like <something>.libpcap-0.8.3... I know this may same weird, but is prefixing the package name a sane approach to this? On a related note, I also supply a modified kernel and I don't want yum to replace the kernel when its updated on a CentOS mirror. Is the best way to do this with a the ignore option in the yum repo configuration? Thanks, Jason

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Bind Recursion and Sendmail
by John Hinton 26 Mar '06

26 Mar '06

Seems that bind by default allows recursion and it's not a good idea. I'm struggling a bit on a couple of systems. These two systems run sendmail and are nameservers. I have sendmail set to do domain lookups and bounce if the domain does not exist. My struggle has been to turn recursion off in bind while allowing sendmail to do these lookups. I've been trying to do this by setting up allow-recursion in the options section of named.conf. Using something like allow-recursion {192.1.1.0/24; 192.34.2.6; }; The IPs have been changed to protect the innocent...... Bind is happy with the entry.. sendmail is not and starts bouncing email. Does anybody have this working and have any hints? I've googled and tested for hours.... Best, John Hinton

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My SSL connection is very slow
by dan1 25 Mar '06

25 Mar '06

Hello all. I have a problem since months with my CentOS 4 webserver. It came up since I intalled it. The SSL pages are very slow. Typically, I get 2-3 thumbnails from an SSL page, and then nothing during 7 seconds, and then again 2 thumbnails, nothing again, etc.. and so forth during about 30 seconds after what all non loaded images are just discarded (time out). It also happens with the normal HTTP, but much less, and is usable. I must have done an error in the configuration, but I don't know where. I have tried taking the ssl.conf, httpd.conf and php.ini from another clean CentOS server (that does not present this) but after rebooting the services nothing changes. I don't see anything strange in the logs neither. It just takes very long to answer a request. I also tried to stop MySQL and Tomcat, but no chance. Did someone already see that kind of behaviour ? Kind regards, Daniel

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is the latest SSH messed up?
by Mike 25 Mar '06

25 Mar '06

Greetings. I'm reading a report from a software provider that SSH should be reinstalled and all keys re-generated. They seem to be suggesting a possible security vulnerability in the current SSH. Has anyone here heard of this or been affected by replaced ssh binaries? Mike

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Re: Re: [CentOS] UPS Batteries
by edukes＠alltel.net 25 Mar '06

25 Mar '06

> > From: Chris Mauritz <chrism(a)imntv.com> > Date: 2006/03/24 Fri PM 01:17:52 EST > To: CentOS mailing list <centos(a)centos.org> > Subject: Re: [CentOS] UPS Batteries > > edukes(a)alltel.net wrote: > >> From: Mark Schoonover <schoon(a)amgt.com> > >> Date: 2006/03/24 Fri PM 12:22:21 EST > >> To: 'CentOS mailing list' <centos(a)centos.org> > >> Subject: RE: [CentOS] UPS Batteries > >> > >> edukes(a)alltel.net <mailto:edukes@alltel.net> tapped at Friday, March 24, > >> 2006 6:21 AM: > >> > >> > >>> Hello, > >>> > >>> This may be a really stupid question, but can a gel type marine > >>> battery be used in a UPS? > >>> > >>> Thanks > >>> > >> I don't think so. Gelcells are different than the sealed lead acid batteries > >> found in UPS's. They have different charging requirements, and will > >> discharge differently than SLAs. Probably best to purchase replacement > >> batteries from the manufacturer... > >> > >> HTH > >> > > Thanks for the info!! > > > > Depending on the vendor of the UPS, you may be able to cheaply replace > the original batteries. APC has a program called "ChargeUPS" or > somesuch that sends you replacement batteries and allows you to send > your old batteries back to them "freight pre-paid" so you don't have to > deal with disposing of them properly (which can be a pain in the behind > in some areas). The reason I asked the question was I was looking at buying a used APC 1400 with no battery. It seems shipping for the battery is about as much as the battery itself. Do you know a particular model of APC that is compatible with CentOS? Thanks!!

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MaraDNS, any experience with it?
by William L. Maltby 25 Mar '06

25 Mar '06

Setting up a server for my private net, thought I'd take the opportunity to learn some new stuff. Ran across this, http://www.maradns.org/ and thought I might give it a try. Web page says compiled on CentOS 3. Unfortunately no rpms available from the usual CentOS repos. If it looks decent, I figured I'd speak to the provider about getting it into CentOS. It uses a FreeBSD-like copyleft. TIA for any info. Bill

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centos4 install freezing on Compaq Workstation ap250
by Dave 25 Mar '06

25 Mar '06

Hello, I'm trying to install Centos4 on a Compaq Professional Workstation AP250. I'm doing this via serial terminal as this box does not have a monitor and install is getting to the running of /sbin/loader then it freezes. I've tried linux text console=ttyS0 and added combinations of: nousb noathlon apm=off acpi=off nothing is working. Some urgency! Any help appreciated. Thanks. Dave.

1 0

wmv
by boricua 25 Mar '06

25 Mar '06

how do you get helix to play wmv files

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