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CentOS on the HP MicroServer
by Timothy Murphy 07 Jul '11

07 Jul '11

I'm been running two HP MicroServers as home-servers under CentOS-5.6 for 2 months, and have been very happy with their performance. I'm wondering if there are many other MicroServer/CentOS users around? I've been surprised when looking at the MicroServer forums (eg <<http://www.avforums.com/forums/networking-nas/ 1431514-hp-proliant-microserver-n36l-owners-thread.html>) how few posts I see from CentOS users, even though RHEL is one of the only two OS's officially supported by HP for this machine (the other is Windows Home Server). Is there by chance a MicroServer/CentOS forum anywhere? I haven't been able to locate one. The MicroServer is incredibly cheap at the moment, as HP keep extending their cash-back offer which brings the price down to about €160 (with 1GB RAM and a 250GB SATA disk). There is a large amount of official HP Linux support, eg the "HP Smart Update Manager", though as usual with HP software I find it quite difficult to use. (I have the same feeling about HP support for printers.) -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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Strange autotools error
by John J. Boyer 07 Jul '11

07 Jul '11

I am using CentOS 5.6, autoconf 2.59 and automake 1.9.6. I run an autogen script which cleans all autotools files and then installs new ones. If the appliction has no dependencies running configure, make and make install works fine. However if it has dependencies I get the messages "Creating Makefile" and "Could not find input file Makefile". I've herd that I need another development package. What is it? Or what causes these contradictory messages? I must say that I have encountered this sort of problem only on CentOS. Thanks, John -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities ----- End forwarded message ----- -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities

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How much SWAP Space.
by Kaushal Shriyan 07 Jul '11

07 Jul '11

Hi, I have loaded CentOS 5.6 on HP DL 180G6 2U Rack Server and the physical RAM is 32 GB. As per http://www.centos.org/docs/5/html/Deployment_Guide-en-US/ch-swapspace.html It says it should be 1 x of Physical RAM or less. Not sure about the "less" word in deciding swap space size Please suggest/guide further on what all parameters i should decide to set swap space. Regards, Kaushal

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What are the advantages of upgrading from 5.6 to 6?
by John J. Boyer 06 Jul '11

06 Jul '11

I've just installed CentOS 5.6. What would I get if I upgraded to 6? Would I have to reinstall all applications or could I just restore my /etc and /usr directories and do an update? Thanks, John -- John J. Boyer; President, Chief Software Developer Abilitiessoft, Inc. http://www.abilitiessoft.com Madison, Wisconsin USA Developing software for people with disabilities

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pam update
by Paul A 06 Jul '11

06 Jul '11

Hi, I'm currently using, CentOS release 4.8 (Final) and wanted to update the pam_tally module to support unlock_time. I understand this is only support on centos 5.x and up. What are my options for updating pam_tally to support unlock_time, can I simply download and update from a centos repo or should I compile pam. I would appreciate some suggestions. paul

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Re: [CentOS] Cluster Failover Troubleshooting (luci and ricci)
by Ryan Bunce 06 Jul '11

06 Jul '11

Ljubomir Ljubojevic wrote: I never installed or used any Conga/lucci/ricci sistem. But as far as I know and understand, you need to have a way for server failing to warn the rest of the nodes. Your log said it failed. Some of the failover sistems need separate network connected to collective file systems. So when eth0 is not working, main node will use eth1(2,3,4) to report this event to all other nodes. What comes to mind is that IP's set for interconnection (in lucci conf) must not be public IP's but of that separate/secundary network in order for main node to be able to contact the rest of the nodes. I hope this helps. Ljubomir Ljubomir, Thank you for your reply. I do have a secondary NIC providing the communication between the cluster nodes. I set this up by creating host entries in the /etc/hosts file and pointing those entries to the IP addresses assigned to the NIC's connected via x-over cable. I then created the cluster using the names specified in the hosts file. I've done some network sniffing on the NIC's connected with x-over cable and there's clearly a constant communication between the two boxes. This leads me to conclude that the cluster communication is both working and moving over the channel I intended. Thanks for the input. Let me know if you have any other suggestions. Ryan

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Rsyslog5 and CentOS
by Dirk 06 Jul '11

06 Jul '11

Hi folks, I am in the process of getting rsyslog 5.8.2 to work on CentOS 5.6 (both 64 and 32 bit). All that is left is getting SELinux to work with it. Has anybody out there gone through the process of working this out and can provide a policy file? If not, is anyone interested in the work I will do then (is there some place to publish those files?)? Best regards, Dirk

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When CentOS 6 arrives ...
by Timothy Murphy 06 Jul '11

06 Jul '11

What is the best way to install CentOS 6? Is there an upgrade facility from CentOS-5.6? If so, how does this compare with a clean installation? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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Re: [CentOS] Rsyslog5 and CentOS
by aly.khimji＠gmail.com 06 Jul '11

06 Jul '11

Agreed, I was doing this in a test environment, and did review the rules created. Hopefully that part was assumed ;) but if not I agree it is wise to review the policy file it creates before they get snapped it. Aly Sent from my BlackBerry device on the Rogers Wireless Network

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Re: [CentOS] Rsyslog5 and CentOS
by aly.khimji＠gmail.com 06 Jul '11

06 Jul '11

Not sure exactly what you need but I came across this when setting up rsyslog to work with mysql and was having SELinux protecting services. This is what I used you can see if it helps resolve your issue. Again I don't know if this will work for you but u can try it in a test environment and see if it helps # setenforce 0 # service rsyslog restart # cat /var/log/audit/audit.log | grep rsyslogd | audit2allow -M myselinuxmod; semodule -i myselinuxmod.pp # setenforce 1 # service rsyslog restart That should get all audit related errors, audit allow a policy file and load up the file. Tweak it as u see fit, HTH Aly Sent from my BlackBerry device on the Rogers Wireless Network

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