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CentOS 4.4 not seeing all RAM
by Kanwar Ranbir Sandhu 05 Mar '07

05 Mar '07

Hi Everyone, My server is only seeing 4.8 GB out of 6 GB available. I don't know why. I have a CentOS 4.4 x86_64 server running on a Tyan s2895 with 6 GB of RAM (two 1 GB sticks and 2 2 GB sticks). I upgraded the RAM, powered up the server, and when CentOS was finished booting, checked the available RAM with free. This is what it's reporting: total used free shared buffers cached Mem: 4809064 4769492 39572 0 197156 3127704 -/+ buffers/cache: 1444632 3364432 Swap: 2064376 176 2064200 The BIOS sees all of the RAM. In fact, it looks to me like the kernel knows 6 GB is available. But, it is only using 4.8 GB because I see this in dmesg: Memory: 4808464k/6291456k available (2106k kernel code, 0k reserved, 1299k data, 196k init) What happened to the other 1 GB+ of RAM? BTW, the server isn't running all the newest updates, but it is running the latest CentOS 4 kernel (2.6.9-42.0.10.ELsmp). Regards, Ranbir -- Kanwar Ranbir Sandhu Linux 2.6.19-1.2911.fc6 i686 GNU/Linux 11:39:08 up 2 days, 10:28, 2 users, load average: 1.18, 0.64, 0.60

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Sending traffic through Secondary IP Address
by Al Sparks 05 Mar '07

05 Mar '07

I have set up a secondary IP address in the same network as my primary. So eth0: 192.168.100.29 netmask 255.255.255.0 eth0:0 192.168.100.45 netmask 255.255.255.0 And indeed when I invoke an apache instance that listens on the secondary IP address/interface it works, and it also makes it outside the LAN since the default gateway is defined in the routing tables for 192.168.100.0/24. But I'd like to be able to send out some sort of broadcast on the network from that secondary interface so that the arp tables on various devices on the network get updated. How would I, say, use nmap to do something like that? Is there a generic way to force a particular program to use a secondary IP address instead of the default primary? Obviously, something like BIND or Apache httpd has that hardcoded in so that you can tell them to use secondaries via their configuration files. But how about those programs that don't? === Al

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Lame question about cp
by Mário Gamito 05 Mar '07

05 Mar '07

Hi, How can i copy a file to another with the same name without being prompted for a confirmation ? I read the cp man page, but nada. Any help would be appreciated. Warm Regards, Mário Gamito

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CentOS-announce Digest, Vol 25, Issue 2
by centos-announce-request＠centos.org 05 Mar '07

05 Mar '07

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2007:0078 Critical CentOS 4 s390(x) thunderbird - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Sun, 4 Mar 2007 22:38:18 +0200 From: Pasi Pirhonen <upi(a)centos.fi> Subject: [CentOS-announce] CESA-2007:0078 Critical CentOS 4 s390(x) thunderbird - security update To: centos-announce(a)centos.org Message-ID: <20070304203818.GA14147(a)centos.fi> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2007:0078 https://rhn.redhat.com/errata/RHSA-2007-0078.html The following updated files have been uploaded and are currently syncing to the mirrors: s390: updates/s390/RPMS/thunderbird-1.5.0.10-0.1.el4.centos.s390.rpm s390x: updates/s390x/RPMS/thunderbird-1.5.0.10-0.1.el4.centos.s390x.rpm -- Pasi Pirhonen - upi(a)iki.fi - http://pasi.pirhonen.eu/ Top-postings silently ignored

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Virtualisation
by Stephen Harris 05 Mar '07

05 Mar '07

I'm building a new server at home to handle most of my internal requirements (mail, news, dns, dhcp, backups being the biggies). I also want it to host a couple of virtual servers which are allowed incoming connections from the internet (mail gateway, web server, ssh server); these are virtual so if a hacker _can_ break in then they're limited as to what they can see. At present the virtual machines are vserver instances on an old FC2 box. I'm wondering what people recommend for virtual servers these days? CentOS 4 with a vserver kernel? Wait for CentOS 5 and use Xen? VMware? (Vmware is the heavy solution, but it does mean I could host a windows session if I wanted to). Or Solaris 10 and zones? Any thoughts? -- rgds Stephen

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The most weird thing i've ever seen (networking)
by Mário Gamito 05 Mar '07

05 Mar '07

Hi, I've installed a mail server using CentOS 4.4 Now, if i reboot the server remotely by ssh, when it cames up, i have no network. The interface is up and everything looks pretty fine. But i can't even ping other machines in the same intranet. If i reboot it locally at the console, the network cames just fine. Never seen nothing like this. The mind boggles :( Any ideas ? Warm Regards, Mário Gamito

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Flash por x64
by Dago Pacheco 05 Mar '07

05 Mar '07

Hi.. I'm using centos 4 over a x64 PC and i want to use flash.... what do i must to do? Thanks -- ________________________ Dago Pacheco Encargado de Informática Maetranza Makimet Ltda.

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CentOS 4.4 lvm and drbd 0.8?
by Chuck Mattern 04 Mar '07

04 Mar '07

I'm running CentOS 4.4 and drbd 0.7 with ext3 filesystems on the drbd device. I'm very interested in moving to drbd 0.8 and pulling my all of my drbd devices into one lvm for greater flexibility in filesystems. I've seen some notes on doing this but wonder if anyone on this list has a cookbook for doing this. Also noted that on the drbd site the only packages they have are set up for the 2.6.9-34.106 kernel. Any thoughts on when there might be a drbd .8 package for the current kernel? Thanks for any wisdom on this, Chuck

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CentOS-announce Digest, Vol 25, Issue 1
by centos-announce-request＠centos.org 04 Mar '07

04 Mar '07

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2007:0078 Critical CentOS 4 x86_64 thunderbird - security update (Johnny Hughes) 2. CESA-2007:0078 Critical CentOS 4 i386 thunderbird - security update (Johnny Hughes) 3. CESA-2007:0078 Critical CentOS 4 ia64 thunderbird - security update (Pasi Pirhonen) ---------------------------------------------------------------------- Message: 1 Date: Sun, 04 Mar 2007 05:06:21 -0600 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2007:0078 Critical CentOS 4 x86_64 thunderbird - security update To: CentOS-Announce <centos-announce(a)centos.org> Message-ID: <1173006381.5147.133.camel(a)myth.home.local> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory 2007:0078 https://rhn.redhat.com/errata/RHSA-2007-0078.html The following updated files have been uploaded and are currently syncing to the mirrors: x86_64: thunderbird-1.5.0.10-0.1.el4.centos.x86_64.rpm src: thunderbird-1.5.0.10-0.1.el4.centos.src.rpm

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php-4.4 rpm
by Michael Kress 04 Mar '07

04 Mar '07

Hi, has somebody already succeeded in creating a php-4.4 rpm under centos-4.4? php version 4.3.9 compiles perfectly, but taking the 4.3.9 spec and replacing the source tar.gz (and omitting the patches) doesn't work at all. I could provide you with details about compile errors, but I think I should check the availability of a 4.4 package before trashing you with details. TIA Regards Michael -- Michael Kress, kress(a)hal.saar.de http://www.michael-kress.de / http://kress.net P E N G U I N S A R E C O O L

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