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How to handle updates after rebuilding PHP?
by Niki Kovacs 29 Apr '08

29 Apr '08

Hi, One of our applications has some very specific requirements regarding PHP, so I had to rebuild it to add some functionality that's not included in the default configuration. First thing I removed every PHP-related package that was installed on the system: # yum remove `rpm -qa | grep php` Then I downloaded the PHP SRPM from http://mirror.centos.org/centos/5.1/os/SRPMS/ and installed it. Next I installed all the build dependencies using yum-builddep. I edited php.spec according to my needs and then built PHP: # rpmbuild -bb --clean php.spec Finally, I installed the resulting packages using 'rpm -ivh', in that order: - php-common - php-cli - php - php-ldap Problem: when I run 'yum check-update', Yum wants to update these php packages immediately, with some packages coming from [base] (not from [updates]). I'm puzzled, because PHP is not in [updates], only in [base]. Now I know I could simply add a line to /etc/yum.conf, something like: exclude=php-* But I *do* want to be notified somehow in case there's an update to PHP, so I can download the new SRPM from the updates/ directory and then rebuild it again. Any suggestions about this? Niki PS: on my desktop I use Arch Linux, where I have some individually rebuilt packages. When I do this, I simply increase the build number, so my packages don't get squashed, but I get an update notification when a new version is available. Maybe this is the way to go, but I don't know how I would do this with RPM.

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sendmail and cups gets installed although not chosen in kickstart file
by Kai Schaetzl 29 Apr '08

29 Apr '08

I setup a kickstart file that contains only @core and several packages explicitely listed. postfix is listed, sendmail is not. And there's no package where I would think it needs cups. Nevertheless, after the install I now have postfix *and* sendmail on the machine and sendmail even being enabled. And cups is installed. How can I find out what forced them (and probably many other unwanted packages) on the installation? I thought maybe "rpm -q --whatrequires sendmail" would tell me, but it doesn't. Nothing requires it. Same for cups. So, why did it get installed? Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com

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Problems with Open-iSCSI and Infortrend A16E-G2130-4
by Santi Saez 29 Apr '08

29 Apr '08

Dear Srs, I'm getting this error when trying to connect to a Infortrend A16E- G2130-4 storage vía iSCSI. > Apr 29 10:24:40 vz-10 kernel: scsi1 : iSCSI Initiator over TCP/IP > Apr 29 10:24:41 vz-10 kernel: Vendor: IFT Model: A16E- > G2130-4 Rev: 361F > Apr 29 10:24:41 vz-10 kernel: Type: Direct- > Access ANSI SCSI revision: 04 > Apr 29 10:24:41 vz-10 kernel: SCSI device sdb: 629145600 512-byte > hdwr sectors (322123 MB) > Apr 29 10:24:41 vz-10 kernel: sdb: Write Protect is off > Apr 29 10:24:41 vz-10 kernel: SCSI device sdb: drive cache: write back > Apr 29 10:24:41 vz-10 kernel: SCSI device sdb: 629145600 512-byte > hdwr sectors (322123 MB) > Apr 29 10:24:41 vz-10 kernel: sdb: Write Protect is off > Apr 29 10:24:41 vz-10 kernel: SCSI device sdb: drive cache: write back > Apr 29 10:24:41 vz-10 iscsid: connection1:0 is operational now > Apr 29 10:24:44 vz-10 udevd-event[23432]: wait_for_sysfs: waiting > for '/sys/devices/platform/host1/session1/target1:0:0/1:0:0:0/ > ioerr_cnt' failed > Apr 29 10:25:06 vz-10 iscsid: Nop-out timedout after 15 seconds on > connection 1:0 state (3). Dropping session. > Apr 29 10:25:10 vz-10 iscsid: connection1:0 is operational after > recovery (2 attempts) > Apr 29 10:25:36 vz-10 iscsid: Nop-out timedout after 15 seconds on > connection 1:0 state (3). Dropping session. > Apr 29 10:25:39 vz-10 iscsid: connection1:0 is operational after > recovery (2 attempts) > Apr 29 10:26:05 vz-10 iscsid: Nop-out timedout after 15 seconds on > connection 1:0 state (3). Dropping session. > Apr 29 10:26:09 vz-10 iscsid: connection1:0 is operational after > recovery (2 attempts) > Apr 29 10:26:34 vz-10 iscsid: Nop-out timedout after 15 seconds on > connection 1:0 state (3). Dropping session. > Apr 29 10:26:38 vz-10 iscsid: connection1:0 is operational after > recovery (2 attempts) > Apr 29 10:27:03 vz-10 iscsid: Nop-out timedout after 15 seconds on > connection 1:0 state (3). Dropping session. > Apr 29 10:27:07 vz-10 iscsid: connection1:0 is operational after > recovery (2 attempts) > Apr 29 10:27:32 vz-10 kernel: sdb:<6>sd 1:0:0:0: SCSI error: > return code = 0x00020000 > Apr 29 10:27:32 vz-10 kernel: end_request: I/O error, dev sdb, > sector 0 > Apr 29 10:27:32 vz-10 kernel: Buffer I/O error on device sdb, > logical block 0 > Apr 29 10:27:32 vz-10 iscsid: Nop-out timedout after 15 seconds on > connection 1:0 state (3). Dropping session. > Apr 29 10:27:36 vz-10 iscsid: connection1:0 is operational after > recovery (2 attempts) > Apr 29 10:28:02 vz-10 iscsid: Nop-out timedout after 15 seconds on > connection 1:0 state (3). Dropping session. > Apr 29 10:28:05 vz-10 iscsid: connection1:0 is operational after > recovery (2 attempts) The problem appears to be related to udevd-event? The system is running CentOS 5.1, with kernel 2.6.18-53.1.14.el5PAE, and "iscsi- initiator-utils-6.2.0.865-0.8.el5". It's a strange problem.. I have no errors with CentOS 4.6, what can be the problem? Thanks!! Regards, -- Santi Saez

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RE: [CentOS] SSH Key length
by Les Bell 29 Apr '08

29 Apr '08

"Joseph L. Casale" <jcasale(a)ActiveNetwerx.com> wrote: >> I see, how does one manipulate the keys used for data encryption after auth during file transfers for instance? << One doesn't; the session keys are randomly generated and are automatically renewed periodically. Best, --- Les Bell, RHCE, CISSP [http://www.lesbell.com.au] Tel: +61 2 9451 1144 FreeWorldDialup: 800909

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Re: [CentOS] SSH Key length
by Les Bell 29 Apr '08

29 Apr '08

"Joseph L. Casale" <jcasale(a)ActiveNetwerx.com> wrote: >> What are the ramifications to a large key length when using pub/priv keys for ssh authentication. << No particular impact, especially for file transfer. The pub/priv keys are only used for authentication and a symmetric key is used for encrypting traffic during the session. I use a 2048-bit RSA key routinely - if it's any slower than a 1048-bit key during the authentication phase, it's not noticeable, and it has no impact on file transfer. Best, --- Les Bell, RHCE, CISSP [http://www.lesbell.com.au] Tel: +61 2 9451 1144 FreeWorldDialup: 800909

2 1

SSH Key length
by Joseph L. Casale 29 Apr '08

29 Apr '08

What are the ramifications to a large key length when using pub/priv keys for ssh authentication. I have some remote admin and file transfers to manage and only have ssh access w/o vpn to use for it. Thanks, jlc

1 0

OpenSSH Version
by Walter Hansen 28 Apr '08

28 Apr '08

I see that currently CENTOS is using 4.3p2 which does not support the new Match command in the sshd_config. I'm not sure, but I think that was added with 4.4. I was wondering how long it would be before we get to use this feature?

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vfs objects = recycle
by John 28 Apr '08

28 Apr '08

[public] vfs objects = recycle recycle:repository = Recycle Bin -------------------------------------- Just want to be clear if I use the vfs recycle option does "recycle:repository = Recycle Bin" get put into the the public directory? As I am having a problem with deleting files on a client and then can't empty the trash because of permission problems. Will this solve this issue or do I have problems elsewhere? Keep in mind this is a mixed node network with windows and linux. I'm taking pointers from any one with heavy samba experiance. As I am no samba guy. Also pointers on clustering samba with DFS. -- ~/john OpenPGP Sig:BA91F079

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Slightly OT: Extra icons on desktop
by MHR 28 Apr '08

28 Apr '08

I'm running FC8 with Gnome 2.20.0 at work and I have this interesting situation. I have two disks on the system that are both configured to be mounted in /etc/fstab, but I'm seeing two things I believe are strange. One is that the second drive is not getting mounted at boot time. The other is that I see two icons for the disk on my desktop - one with the mount point of the drive, the other with the labvel, and they both refer to the same drive (but, e.g., if I use one icon to umount the drive, the other icon does not go away - this is secondary). Suggestions welcome. Here is my /etc/fstab: LABEL=/ / ext3 defaults 1 1 LABEL=/boot /boot ext3 defaults 1 2 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 /dev/sda2 swap swap defaults 0 0 LABEL=/misc /misc ext3 defaults 1 2 The drive that is misbehaving is /misc. This is (more or less) my first experience with FC, so have mercy. :-) Thanks. mhr

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Re: [CentOS] DVD reader: Hardware problem or OS glitch?
by Lanny Marcus 28 Apr '08

28 Apr '08

On 26 April 2008, Anne Wilson wrote: > Message: 11 > Date: Sat, 26 Apr 2008 16:57:25 +0100 > From: Anne Wilson <cannewilson(a)googlemail.com> > Subject: Re: [CentOS] DVD reader: Hardware problem or OS glitch? > To: CentOS mailing list <centos(a)centos.org> > Message-ID: <200804261657.25885.cannewilson(a)googlemail.com> > <snip> > The support page for the Dell Dimension 4300 is dated 2001. If that's > the approximate age, it's quite possible that it doesn't read DVDs. > My Packard Bell of similar age sometimes can read one, sometimes > can't, but it's not really supposed to, I think. Anne: This is something that worked fine, for several years. It was my box, before my daughter got it, and I used the DVD drive, without problems. That it works OK in MS Windows XP and that I can boot the box from the same DVD, without problems, has me leaning more toward a problem with CentOS 5 Mounting the DVD, in that box. If it is a HW problem, I would think the problem would also appear in Windows and when I boot from that DVD. However, that it works OK, in 2 other Desktops, would possibly indicate a HW problem in that box. TIA, Lanny

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