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34758 discussions

Static linking against glibc
by Anand Buddhdev 25 Jun '07

25 Jun '07

I'm building an RPM of a DNS server called NSD on CentOS 4.4. I'm going to be using it for some heavy-duty DNS traffic, so I want to minimise its dependencies on external libraries. I have therefore attempted to link it statically. The package does build, and even runs fine. However, during the build process, gcc emits warnings like these: nsd.o(.text+0xfba): In function `main': : warning: Using 'getpwnam' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking My understanding of this is because glibc uses dlopen to load other shared objects at runtime. I therefore need a Requires: line in the RPM which requires glibc-2.3.4-2.36, or whatever version I used to build nsd. Now, what I want to ask is: if the version of glibc is upgraded to say 2.3.4-2.48, what happens? What do the numbers after the version number mean (2.48) and what effect will that have on packages which are statically linked against glibc? Another question which has occured to me is this: NSD also uses other libraries, such as openssl. Is there any way to know if any of the openssl libraries use dlopen to load in other shared objects? If they do, then it introduces dependencies that I may not be aware of, and doing static linking wouldn't be as beneficial as I first thought it would be. Comments from experienced developers will be most appreciated. -- Anand Buddhdev

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Centos 5: e1000 question
by Mogens Kjaer 25 Jun '07

25 Jun '07

I have a machine running Centos 5, x86_64. It has an Intel NIC: # lspci 15:00.0 Ethernet controller: Intel Corporation 82572EI Gigabit Ethernet Controller (Fiber) (rev 06) The machine has two dualcore cpus. If I look at /proc/interrupts I get: CPU0 CPU1 CPU2 CPU3 0: 144873228 220741831 173615012 220733357 IO-APIC-edge timer 4: 269120 1203485 1964914 1528555 IO-APIC-edge serial 7: 0 0 0 0 IO-APIC-edge parport0 8: 0 0 0 0 IO-APIC-edge rtc 9: 0 0 0 0 IO-APIC-level acpi 14: 137 3218764 3143397 430444 IO-APIC-edge ide0 90: 3403812 5504380 553784 1273225 IO-APIC-level aic79xx 98: 460440049 0 0 0 PCI-MSI eth0 169: 210489 9211230 26272710 31733980 IO-APIC-level uhci_hcd:usb2, uhci_hcd:usb3, aacraid 177: 0 0 0 0 IO-APIC-level uhci_hcd:usb4 185: 2 0 0 0 IO-APIC-level uhci_hcd:usb1, ehci_hcd:usb5 NMI: 359 102 105 115 LOC: 744651234 743298229 744651090 743298086 ERR: 0 MIS: 0 My question is: Why are the eth0 interrupts distributed to CPU0 only? Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle Carlsberg Vej 10, DK-2500 Valby, Denmark Phone: +45 33 27 53 25, Fax: +45 33 27 47 08 Email: mk(a)crc.dk Homepage: http://www.crc.dk

1 0

OT: vmware server not accepting root password?
by Gordon McLellan 23 Jun '07

23 Jun '07

Sorry for the OT question; I'm hoping someone else has a similar setup and ran into this same problem? For some reason, not sure what I changed, my vmware server is no longer accepting the root login for the management console or web mui interface. I'm certain the password is correct, and I've even reset root's password to make sure. VMware seems to be running ok, I can access my virtual machines just fine, as well as start and stop the vmware service. The host OS is centos 4.5 x86-64, nothing special, just a bare bones server install. Any ideas on resetting what vmware considers the root password, or re-syncing it somehow? Thanks- Gordon These are the only log entries I could find corresponding to my login attempts: [root@incognito log]# tail secure Jun 22 23:48:26 incognito xinetd[4086]: START: vmware-authd pid=7377 from=10.51.51.6 Jun 22 23:48:26 incognito vmware-authd[7377]: PAM unable to dlopen(/usr/lib/vmware/lib/libpam.so.0/security/pam_unix2.so) Jun 22 23:48:26 incognito vmware-authd[7377]: PAM [dlerror: /usr/lib/vmware/lib/libpam.so.0/security/pam_unix2.so: cannot open shared object file: No such file or directory] Jun 22 23:48:26 incognito vmware-authd[7377]: PAM adding faulty module: /usr/lib/vmware/lib/libpam.so.0/security/pam_unix2.so Jun 22 23:48:26 incognito vmware-authd[7377]: PAM unable to dlopen(/usr/lib/vmware/lib/libpam.so.0/security/pam_unix_auth.so) Jun 22 23:48:26 incognito vmware-authd[7377]: PAM [dlerror: /usr/lib/vmware/lib/libpam.so.0/security/pam_unix_auth.so: symbol pam_syslog, version LIBPAM_EXTENSION_1.0 not defined in file libpam.so.0 with link time reference] Jun 22 23:48:26 incognito vmware-authd[7377]: PAM adding faulty module: /usr/lib/vmware/lib/libpam.so.0/security/pam_unix_auth.so Jun 22 23:48:26 incognito vmware-authd[7377]: PAM unable to dlopen(/usr/lib/vmware/lib/libpam.so.0/security/pam_unix_acct.so) Jun 22 23:48:26 incognito vmware-authd[7377]: PAM [dlerror: /usr/lib/vmware/lib/libpam.so.0/security/pam_unix_acct.so: symbol pam_syslog, version LIBPAM_EXTENSION_1.0 not defined in file libpam.so.0 with link time reference] Jun 22 23:48:26 incognito vmware-authd[7377]: PAM adding faulty module: /usr/lib/vmware/lib/libpam.so.0/security/pam_unix_acct.so

2 1

network raid file system/server
by Farkas Levente 22 Jun '07

22 Jun '07

hi, we've a few 10-20 server in a lan each has 4-8 hdd. we'd like to create one big file server on these server hard disks and we'd like to create it in a redundant way ie: - if one (or more) of the hdd or server fails the whole filesystem still usable and consistent. - any server in this farm can see the same storage/filesystem. it's someting a big network raid5-6... storage where we have about 40<partition added to the same network volume. and there is an fs over it which hide all internal network raid functionality. is there any such solution? i can't find any way to do this on our linux servers. thank you for your help in advance. -- Levente "Si vis pacem para bellum!"

10 16

Bug in initscripts? Problem with ifup-routes and alias device
by "T. Eichstädt" 22 Jun '07

22 Jun '07

Hello List, I have one network card and added two IP-Adresses to it: eth1 192.168.1.1/24 eth1:1 10.1.2.3/24 a want to use static routes on device eth1:1 and added one in /etc/sysconfig/network-scripts/route-eth1:1: GATEWAY0=10.1.2.4 ADDRESS0=10.2.2.0 NETMASK0=255.255.255.0 What the network-script should execute in background is: ip route add 10.2.2.0/24 via 10.1.2.4 dev eth1 but it executes ip route add 10.2.2.0/24 via 10.1.2.4 dev eth1:1 BUT: "eth1:1" is in the "ip" command not working, "ip" throws an error ("Cannot find device eth1:1") and doesn't add the route. Did I miss something or is it a bug in the ifup-routes script ? ----------------- Output of ifconfig eth1:1 after "ifup eth1:1": eth1:1 Link encap:Ethernet HWaddr 00:0E:0E:0E:68:8B inet addr:10.1.2.3 Bcast:10.1.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Base address:0xec00 Memory:dffe0000-e0000000 ---------------------- Best regards T. Eichstädt

1 0

AX.25 and centos 5.X
by Evans F. Mitchell; KD4EFM / AFA2TH / WQFK-894 22 Jun '07

22 Jun '07

trying to find out how to get ax.25 enabled or started on centos 5, I am not able to mod-probe or find anything where I can yum, apt, or otherwise, get ax.25 on my machine. Thanks Evans F. Mitchell KD4EFM / AFA2TH FL; USAF MARS GMRS: WQFK894 D-STAR 145.670 Simplex WCF Section ARRL Member ARRL WCF Section Web Site http://www.arrlwcf.org Polk County ARES Web site http://www.polkemcomm.org <kd4efm hotmail com> alt box

2 1

CentOS 5 LiveCD - When?
by Mike McCarty 22 Jun '07

22 Jun '07

I asked before (about 2 weeks) about this, and was told it was in testing. I wonder when it will be available. My GF is considering leaving Debian due to it not recognizing her hardware very well, and I thought a CentOS 5 LiveCD might be a reasonable way for her to see whether CentOS might do a better job. If no LiveCD is forthcoming soon, then I'll burn a copy of the CentOS 4 LiveCD and let her try that. Thanks. Mike -- p="p=%c%s%c;main(){printf(p,34,p,34);}";main(){printf(p,34,p,34);} Oppose globalization and One World Governments like the UN. This message made from 100% recycled bits. You have found the bank of Larn. I can explain it for you, but I can't understand it for you. I speak only for myself, and I am unanimous in that!

6 16

VGA boot options in XEN kernel
by Jordi Espasa Clofent 22 Jun '07

22 Jun '07

Hi all, I've got a new LCD 19" monitor. It's a good device, but I always work into a shell environment, so the fonts size is too big for comfortable activity. I've tried to increase the resolution adding the vga=VALUE parameter in kernel-xen line, but it seems not work. Some useful info: [root@horus ~]# uname -a Linux horus 2.6.18-8.1.6.el5xen #1 SMP Thu Jun 14 18:01:24 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux -- Thanks, Jordi Espasa Clofent

2 2

Re: [CentOS] VGA boot options in XEN kernel
by Radu-Cristian FOTESCU 22 Jun '07

22 Jun '07

> See the report on the upstream bugzilla system : > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=236195 > > As stated, this will be (probably) solved in el5.1 ... After having read the bug report: would it be safe enough to try the kernels here? http://people.redhat.com/dzickus/el5/19.el5/i686/ or: http://people.redhat.com/dzickus/el5/28.el5/i686/ They all have CONFIG_FB_VESA=y R-C Get news delivered with the All new Yahoo! Mail. Enjoy RSS feeds right on your Mail page. Start today at http://mrd.mail.yahoo.com/try_beta?.intl=ca

1 0

Livecd question
by don vogt 22 Jun '07

22 Jun '07

I feel a litle foolish, having to bother the list with a dumb question. I used the livecd for a while a few months ago and was able to save my configuration changes between sessions. I was away doing other things for a while and now I can't remember the commands to store and retrieve the changes, nor have I been able to find the instructions on how to do that after several days looking. Apreciate any help.

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