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Problem rebuilding glibc for xen
by Dave Hatton 27 Oct '05

27 Oct '05

I would like to rebuild glibc specifically with the -mno-tls-direct-seg-refs to allow better performance with Xen. I'm using Centos 4.2 x86_64 on an Athlon 3200+. I'm using the 2.6.9-11.106.unsupported kernel for reiser support. My thought was to download and install the SRPM and then rpmbuild with no changes to make sure it works before adding the above flag. Unfortunately, the rpmbuild hangs during tst-tls9. Has anyone else managed this? As an alternative suggestion is there a chance that a build of glibc with this flag could be added to centosplus? This would be very useful until this change makes it into the main stream. Thanks Daveh

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RE: [CentOS] Question on Quad Opteron HP DL 585
by Miskell, Craig 27 Oct '05

27 Oct '05

> -----Original Message----- > From: centos-bounces(a)centos.org > [mailto:centos-bounces@centos.org] On Behalf Of Sivakumar Raju > Sent: Thursday, 27 October 2005 1:25 p.m. > To: centos(a)centos.org > Subject: [CentOS] Question on Quad Opteron HP DL 585 > > Hi, > > I have a HP DL 585 server with Quad Opteron processors and 32 > Gbytes of RAM. > > I would like to know whether CentOS 3.5 x86_64 will recognize > all 4 CPUs and 32 Gbytes of RAM. > > I will also running EDA tools like PriteTime, and Magma on > this server. Does CentOS has any issues > with these tools? > > your help on this question is appreciated. > > Thanks > Siva. FWIW, We have similar (only 16GB of RAM though), and RHEL 3 U5 (the upstream equiv of CentOS 3.5) is working fine. I can't speak to the other questions, having never seen nor heard of those packages before, Craig Miskell ======================================================================= Attention: The information contained in this message and/or attachments from AgResearch Limited is intended only for the persons or entities to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipients is prohibited by AgResearch Limited. If you have received this message in error, please notify the sender immediately. =======================================================================

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which process & file taking up disk IO?
by Lim Wee Cheong 26 Oct '05

26 Oct '05

I'm having load problems on a server. The bottleneck appears to be disk IO. iostat would show ~100, under %util, during peak usage. i'm running things like clam antivirus, pop, exim, apache, mysql on the server. is there a way to check which process and which file is taking up disk IO? or see what is being written to the disk? i'm very puzzled as the amount of writes is 10 times higher than the reads; and I can't figure out what the writes are for. Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s avgrq-sz sda3 2.20 32.94 2.12 17.42 34.54 407.74 17.27 203.87 22.63 avgqu-sz await svctm %util 1.28 65.38 5.10 9.97 Is it normal for the %util to be 9.97% for the above reads/ writes on a U320 drive? or perhaps i have a badly misconfigured server? the drive is 2 x 146GB, RAID 1 using the LSI logic LSI22320-R card. #elvtune /dev/sda /dev/sda elevator ID 1 read_latency: 2048 write_latency: 8192 max_bomb_segments: 6 #cat /proc/sys/vm/bdflush 80 50 0 0 600 10000 80 70 0 Server is running CentOS 3.5; CPU and RAM are very much under utilised. Regards, Wee Cheong

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RE: [CentOS] symantic ghost with centos 4.2
by Drew Weaver 26 Oct '05

26 Oct '05

If you get this to work please for the love of god let me know. -Drew -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Jerry Geis Sent: Wednesday, October 26, 2005 4:09 PM To: centos(a)centos.org Subject: [CentOS] symantic ghost with centos 4.2 I am trying to use symantic 8.X and ghost a disk. I get "Apllication Error 29004. Read sector failure, result = 1, drive = 0, sectors 2071692247 to 2071692255" when trying to ghost the disk. anyone done this successfully? symantic supports ext3. Thanks, jerry _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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vsftp passive mode / iptables issue
by John Hinton 26 Oct '05

26 Oct '05

I've been struggling with my firewall and getting vsftp to work in passive mode. It seems that everything on this hosting server works just fine without the eth0 entry in my iptables except for vsftp in passive. Am I opening up too much by adding the eth0 line? -A INPUT -j RH-Firewall-1-INPUT -A FORWARD -j RH-Firewall-1-INPUT -A RH-Firewall-1-INPUT -i lo -j ACCEPT -A RH-Firewall-1-INPUT -i eth0 -j ACCEPT <---- THIS ENTRY -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT -A RH-Firewall-1-INPUT -p 50 -j ACCEPT -A RH-Firewall-1-INPUT -p 51 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp -m state --dport 20 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state -m tcp --dport 21 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state -m tcp --dport 22 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state -m tcp --dport 25 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state -m tcp --dport 80 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp -m state --dport 110 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp -m state --dport 443 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp -m state --dport 465 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp -m state --dport 587 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp -m state --dport 995 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp -m state --dport 5561 --state NEW -j ACCEPT -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited TIA! John Hinton

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Re: [CentOS] Problem SSH
by minichaz 26 Oct '05

26 Oct '05

On Tue Oct 25 17:54 , Mauricio Merlin <mauricio(a)cimed.ind.br> sent: >My Centos 4.1 only accept connections from localhost, my file conf is >default. >error: ssh: connect to host 192.168.1.78 port 22: No route to host > > >thanks >_______________________________________________ >CentOS mailing list >CentOS(a)centos.org >http://lists.centos.org/mailman/listinfo/centos > This isn't an SSH problem and it's not a firewall problem either as that would produce a "connection refused" message or similar. You will need to allow incoming SSH connections on the machine to which you are connecting but you don't appear to have got to that stage yet. "No route to host" would indicate that there's a basic network connectivity problem between the two machines in question. Check you can ping the machines from each other, I suspect you can't. Most likely you've got a typo in a netmask or something similar. Charlie

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PostgeSQL 8.0.4 on CentOS4.2
by James B. Byrne 26 Oct '05

26 Oct '05

In case anyone besides me is interested, installing these packages on CentOS4.2 seems to work. You can determine the correct mirror to use from: http://www.postgresql.org/ftp/binary/v8.0.4/linux/rpms/redhat/rhel- es-4/ The rpm command that I used was: rpm --upgrade --nodeps --hash -v <package url> Packages in order of installation: ftp://ftp3.ca.postgresql.org/pub/binary/v8.0.4/linux/rpms/redhat/rhe l-es-4/postgresql-libs-8.0.4-2PGDG.i686.rpm ftp://ftp3.ca.postgresql.org/pub/binary/v8.0.4/linux/rpms/redhat/rhe l-es-4/postgresql-contrib-8.0.4-2PGDG.i686.rpm ftp://ftp3.ca.postgresql.org/pub/binary/v8.0.4/linux/rpms/redhat/rhe l-es-4/postgresql-docs-8.0.4-2PGDG.i686.rpm ftp://ftp3.ca.postgresql.org/pub/binary/v8.0.4/linux/rpms/redhat/rhe l-es-4/postgresql-pl-8.0.4-2PGDG.i686.rpm ftp://ftp3.ca.postgresql.org/pub/binary/v8.0.4/linux/rpms/redhat/rhe l-es-4/postgresql-8.0.4-2PGDG.i686.rpm ftp://ftp3.ca.postgresql.org/pub/binary/v8.0.4/linux/rpms/redhat/rhe l-es-4/postgresql-server-8.0.4-2PGDG.i686.rpm ftp://ftp3.ca.postgresql.org/pub/binary/v8.0.4/linux/rpms/redhat/rhe l-es-4/postgresql-test-8.0.4-2PGDG.i686.rpm We are using 8.0.4 for development of a new application on a dedicated development server so stability and data conversion issues do not concern us for the moment. You are nonetheless advised not to install 8.0.4 over a 7.4.8 installation without first unloading all of the postgreSQL databases that you wish to preserve under 8.0.4. Regards, Jim -- *** e-mail is not a secure channel *** mailto:byrnejb.<token>@harte-lyne.ca James B. Byrne Harte & Lyne Limited vox: +1 905 561 1241 9 Brockley Drive fax: +1 905 561 0757 Hamilton, Ontario <token> = hal Canada L8E 3C3

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Re: PostgeSQL 8.0.4 on CentOS4.2
by James B. Byrne 26 Oct '05

26 Oct '05

On Tue, 25 Oct 2005 15:11:56 -0600, Michael Best <mbest(a)pendragon.org> wrote: > 1. DON'T USE nodeps > > It's because the binaries don't have libpq.so.3 (if I remember > correctly). Installing it this way will just break those things > that need that library. > > Instead.... install the compat-postgresql-libs That would have been really useful information to have, back on October 17 when I first asked the question about PostgreSQL 8 and CentOS 4 on this list. Lamar Owan provided a lot of help in his reply but I either missed any reference to the compatibility libraries or he failed to mention them. It is too bad that I was not aware of this when I carried out my procedure. However, as my recent post stated, this update was carried out on a dedicated development server. The each postgresql-8.0.4 package was first rpm -U --test installed with dependencies on to see what would break and determine if anything critical was in that list. The packages dependent upon libpq.so.3 on our server were: mod_auth_pgsql-2.0.1-6 dovecot-0.99.11-2.EL4.1 perl-DBD-Pg-1.31-6 postgresql-tcl-7.4.8-1.RHEL4.1 postgresql-python-7.4.8-1.RHEL4.1 Now the postgresql-*-7.4.8 stuff is not used on the development server, or anywhere else in our operation so far as we can determine. Those were deleted. Ditto for dovecot. Ditto for perl- DBD. Finally, the development machine does not provide httpd service so mod_auth_pgsql-2.0.1-6 is also redundant. Linux OS distributions are not religious dogma. Sometimes you just have to get something working and accept that fact that this choice will render less important things useless. This may not be the most elegant approach, but there is always a limit to the amount of time available to solve these kinds of problems. I appreciate that moving from postgres 7.x to 8.x is a far more involved issue for applications running against that dbms than simply loading the software. But all I needed was get a particular version of a particular package running on a tabula rasa server dedicated to development of a new application. The point being to avoid converting from pg 7.4 to 8.x in the future. At least all this information is now on the list for future reference. Regards, Jim -- *** e-mail is not a secure channel *** mailto:byrnejb.<token>@harte-lyne.ca James B. Byrne Harte & Lyne Limited vox: +1 905 561 1241 9 Brockley Drive fax: +1 905 561 0757 Hamilton, Ontario <token> = hal Canada L8E 3C3

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PAM Errors in proftpd
by William J.A. Brillinger 26 Oct '05

26 Oct '05

Logwatch on my NU-BQ+CentOS box has been giving me these errors for the last week or so. Any ideas on what is causing this? --------------------- proftpd-messages Begin ------------------------ **Unmatched Entries** secure2.pdcweb.net (localhost[127.0.0.1]) - PAM(setcred): System error secure2.pdcweb.net (localhost[127.0.0.1]) - PAM(close_session): System error secure2.pdcweb.net (localhost[127.0.0.1]) - PAM(setcred): System error secure2.pdcweb.net (localhost[127.0.0.1]) - PAM(close_session): System error secure2.pdcweb.net (localhost[127.0.0.1]) - PAM(setcred): System error secure2.pdcweb.net (localhost[127.0.0.1]) - PAM(close_session): System error secure2.pdcweb.net (localhost[127.0.0.1]) - PAM(setcred): System error ... many more. Thanks! - Bill --------------------------------- William J.A. Brillinger Precision Design Co. E-Mail: mailto:billy@pdcweb.net Web site: http://www.pdcweb.net

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About yum..
by Sam Drinkard 26 Oct '05

26 Oct '05

CentOS specificly, is there any rule of thumb about package names when searching for and installing things using yum? I ask, after I finally found the perl/Tk package I needed, but only after trying several incantations of the package name, from the full blown alpha/numeric name to simply perl/Tk. Is it safe to assume when searching or yum'ing a package that just the package name and perhaps up to the release version would apply in a majority of cases? Many thanks... -- Snowman

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