Discuss May 2012

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193 participants
203 discussions

Ask password when booting Web Server
by Muhammad A. Fatahna 30 May '12

30 May '12

Hi All, i have a problem after install SSL on Apache, when the installation is well and no problem, if access domain which include SSL, (below) https://centos.co.id and https://centos.org it's work, the real problem when restart my computer (apache), when restart on process ask for password RSA when booting CentOS 5.5, more details can see in picture http://s16.postimage.org/4lnhhprkl/passwd_centos.png How do past this password, because if type manual this computer can't finish booting. i am sorry speak english is't very bad :D Thank You :) -- http://mafatahna.web.id @mafatahna

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iscsitarget-1.40.20 error during make in CentOS v6.1 x86_64bit
by chiong lawrence 29 May '12

29 May '12

Hello, Need anyone's help regarding issues I encountered during make on iscsitarget-1.40.20 which I get from "svn co https://iscsitarget.svn.sourceforge.net/svnroot/iscsitarget/trunkiscsitarget" checkout revision 481 Issues where found below after a series of my command, as shown: [junix@thesisQRMproject iscsitarget]$ make *cc: /lib/modules/2.6.32-131.21.1.el6.x86_64/build/include/linux/version.h: No such file or directory* cc: no input files /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments /bin/sh: line 0: [: too many arguments make -C usr make[1]: Entering directory `/ietd/iscsitarget/usr' cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o ietd.o ietd.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o iscsid.o iscsid.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o conn.o conn.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o session.o session.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o target.o target.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o message.o message.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o ctldev.o ctldev.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o log.o log.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o chap.o chap.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o event.o event.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o param.o param.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o plain.o plain.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o isns.o isns.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o md5.o md5.c cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o sha1.o sha1.c cc ietd.o iscsid.o conn.o session.o target.o message.o ctldev.o log.o chap.o event.o param.o plain.o isns.o md5.o sha1.o -o ietd cc -O2 -fno-inline -Wall -Wstrict-prototypes -I../include -D_GNU_SOURCE -c -o ietadm.o ietadm.c cc ietadm.o param.o -o ietadm make[1]: Leaving directory `/ietd/iscsitarget/usr' make -C /lib/modules/2.6.32-131.21.1.el6.x86_64/build SUBDIRS=/ietd/iscsitarget/kernel modules *make: *** /lib/modules/2.6.32-131.21.1.el6.x86_64/build: No such file or directory. Stop.* make: *** [kernel] Error 2 Tried check my current kernel version used and the kernel-devel and kernel-header that has been installed - [junix@thesisQRMproject iscsitarget]$ uname -r 2.6.32-131.21.1.el6.x86_64 [junix@thesisQRMproject iscsitarget]$ rpm -qa | grep kernel kernel-firmware-2.6.32-220.13.1.el6.noarch kernel-2.6.32-220.13.1.el6.x86_64 abrt-addon-kerneloops-2.0.4-14.el6.centos.x86_64 dracut-kernel-004-256.el6_2.1.noarch kernel-headers-2.6.32-131.2.1.el6.x86_64 kernel-2.6.32-220.2.1.el6.x86_64 kernel-2.6.32-131.21.1.el6.x86_64 kernel-devel-2.6.32-220.13.1.el6.x86_64 kernel-devel-2.6.32-131.2.1.el6.x86_64 kernel-2.6.32-71.el6.x86_64 libreport-plugin-kerneloops-2.0.5-20.el6.x86_64 [junix@thesisQRMproject iscsitarget]$ rpm -qa | grep gcc gcc-4.4.6-3.el6.x86_64 libgcc-4.4.6-3.el6.i686 libgcc-4.4.6-3.el6.x86_64 Verified the first error --> cc: /lib/modules/2.6.32-131.21.1.el6.x86_64/build/include/linux/version.h: No such file or directory [junix@thesisQRMproject iscsitarget]$ ll /lib/modules/2.6.32-131.21.1.el6.x86_64/build/include/linux/version.h ls: cannot access /lib/modules/2.6.32-131.21.1.el6.x86_64/build/include/linux/version.h: No such file or directory Verified the second error --> make: *** /lib/modules/2.6.32-131.21.1.el6.x86_64/build: No such file or directory. Stop. [junix@thesisQRMproject iscsitarget]$ ll /lib/modules/2.6.32-131.21.1.el6.x86_64/build lrwxrwxrwx 1 junix root 51 Dec 13 11:52 */lib/modules/2.6.32-131.21.1.el6.x86_64/build -> ../../../usr/src/kernels/2.6.32-131.21.1.el6.x86_64* [junix@thesisQRMproject iscsitarget]$ ll * /usr/src/kernels/2.6.32-131.2.1.el6.x86_64/* total 2952 drwxrwxr-x 25 junix root 4096 May 29 10:55 arch drwxrwxr-x 2 junix root 4096 May 29 10:55 block drwxrwxr-x 5 junix root 4096 May 29 10:55 crypto drwxrwxr-x 88 junix root 4096 May 29 10:55 drivers drwxrwxr-x 2 junix root 4096 May 29 10:55 firmware drwxrwxr-x 70 junix root 4096 May 29 10:55 fs drwxrwxr-x 21 junix root 4096 May 29 10:55 include drwxrwxr-x 2 junix root 4096 May 29 10:55 init drwxrwxr-x 2 junix root 4096 May 29 10:55 ipc drwxrwxr-x 7 junix root 4096 May 29 10:55 kernel drwxrwxr-x 7 junix root 4096 May 29 10:55 lib -rwxrwxr-x 1 junix root 56736 Sep 26 2011 Makefile -rwxrwxr-x 1 junix root 1092 Sep 26 2011 Makefile.common drwxrwxr-x 2 junix root 4096 May 29 10:55 mm -rwxrwxr-x 1 junix root 596750 Sep 26 2011 Module.symvers drwxrwxr-x 48 junix root 4096 May 29 10:55 net drwxrwxr-x 6 junix root 4096 May 29 10:55 samples drwxrwxr-x 12 junix root 4096 May 29 10:55 scripts drwxrwxr-x 7 junix root 4096 May 29 10:55 security drwxrwxr-x 21 junix root 4096 May 29 10:55 sound -rwxrwxr-x 1 junix root 2278502 Sep 26 2011 System.map drwxrwxr-x 3 junix root 4096 May 29 10:55 tools drwxrwxr-x 2 junix root 4096 May 29 10:55 usr drwxrwxr-x 3 junix root 4096 May 29 10:55 virt I noticed that all of the links where color "red". Is it the cause of the errors? If it was how do I fix it. I tried change the ownership to user "junix" and change the permission to 775 BUT still its persist after I issued the make command. Please help I'm stuck here. Can't figured it out how I can resolve this issue. Still learning on linux just a neophyte on this OS and very interested to learn. Thanks

2 3

Repositories in CentOS 5.8
by Kaushal Shriyan 29 May '12

29 May '12

Hi, I am running Cent OS 5.8 in production. Can someone please explain me about various repositories available in CentOS 5.8 and which third party repos ( http://wiki.centos.org/AdditionalResources/Repositories) i should use it in Production environment. Help me understand the pros and cons. Regards Kaushal

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CentOS-announce Digest, Vol 87, Issue 16
by centos-announce-request＠centos.org 29 May '12

29 May '12

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. CEBA-2012:0694 CentOS 6 lldpad Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Tue, 29 May 2012 12:35:23 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:0694 CentOS 6 lldpad Update To: centos-announce(a)centos.org Message-ID: <20120529123523.GA32413(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:0694 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-0694.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: a5ea19b5eee4d89a7ec80aab574d69d15977f6c68d0ee58fd4a6c35ed0238c14 lldpad-0.9.43-13.el6_2.i686.rpm 7d17a17678a42937c0e81ebd92bbfa816f1012417abbbac0f7b29c12ade5cac2 lldpad-devel-0.9.43-13.el6_2.i686.rpm x86_64: eec5116b989792aab442e339060dc3cb4d66ce6c96e2dc535e0052c0d702bb11 lldpad-0.9.43-13.el6_2.x86_64.rpm 7d17a17678a42937c0e81ebd92bbfa816f1012417abbbac0f7b29c12ade5cac2 lldpad-devel-0.9.43-13.el6_2.i686.rpm 0e10e160643015c5f5335811ceec1c0a2730b830b543c13303ecd45d14843a1a lldpad-devel-0.9.43-13.el6_2.x86_64.rpm Source: eaafc56b86c32eff0af7ecc16e0958aad75917a2ac39a72d5e415875f82fea53 lldpad-0.9.43-13.el6_2.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 87, Issue 16 ***********************************************

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KVM and vnc together
by Jerry Geis 29 May '12

29 May '12

Ran into something weird. I have my machine CentOS 6.2 running KVM guest of Windows 7. This works fine while I'm in the office... Then when I remote in using VNC to my machine - the VNC always works fine. However, when I try to access the KVM session its like the mouse has lost its brain. Anyone ran into this? I startup with this command: qemu-system-x86_64 -net nic,model=rtl8139 -net user -hda win7.img -usb -m 4192 -vga std & Thanks, Jerry

4 3

anyone care to helop with a fail2ban problem on Centos 5.8?
by Dave Stevens 29 May '12

29 May '12

I've got an up-to-date Centos 5.8 and can't seem to get fail2ban to get rid of troublesome sshd login attempts. /etc/fail2ban/jail.conf has these sections: [ssh] enabled = true port = ssh filter = sshd logpath = /var/log/auth.log maxretry = 6 # Generic filter for pam. Has to be used with action which bans all ports # such as iptables-allports, shorewall [pam-generic] enabled = false # pam-generic filter can be customized to monitor specific subset of 'tty's filter = pam-generic # port actually must be irrelevant but lets leave it all for some possible uses port = all banaction = iptables-allports port = anyport logpath = /var/log/auth.log maxretry = 6 and an excerpt from a logwatch run just now is: --------------------- pam_unix Begin ------------------------ sshd: Authentication Failures: unknown (190.145.98.179): 2460 Time(s) root (58.51.95.75): 285 Time(s) unknown (122.70.128.5): 125 Time(s) postgres (190.145.98.179): 64 Time(s) mail (190.145.98.179): 40 Time(s) mysql (190.145.98.179): 40 Time(s) root (190.145.98.179): 36 Time(s) unknown (58.51.95.75): 26 Time(s) ftp (190.145.98.179): 17 Time(s) root (122.70.128.5): 15 Time(s) root (221.226.215.117): 13 Time(s) root (cloud-128-117.diagcomputing.org) 13 Time(s) adm (190.145.98.179): 12 Time(s) so advice? redirection? rtfm? Dave -- It is told that such are the aerodynamics and wing loading of the bumblebee that, in principle, it cannot fly...if all this be true...life among bumblebees must bear a remarkable resemblance to life in the United States. -- John Kenneth Galbraith, in American Capitalism: The Concept of Countervailing Power

2 1

How do downgrade mozilla ?
by Timothy Madden 29 May '12

29 May '12

Hello Sorry to say this to everyone, but since I installed CentOS 6 a month ago I found that both Mozilla Firefox and Mozilla Thunderbird crash big time (meaning every day and even more than once a day) with a large INBOX or newsgroup, or with many tabs open in the Firefox windows. I also keep my work computer running over night usually, maybe this is also a factor. Knode does not do a better job than Thunderbird with the newsgroups, either, it still crashes on large ones. Konqueror too consumes many gigabytes and becomes unresponsive if I have many tabs open and keep it running over night. I got pan newsreader though, and it is very nice with a 126000-articles a newsgroup (like on CentOS.general :)! And that reporting tool that pops up every time says it can not upload the crash report (because it does not have some valid URL or something)... Is there a nice way to downgrade Mozilla Firefox to say version 4 or 5 please ? And something similar for Thunderbird ? Thank you, Timothy Madden

5 4

openldap mmr + heartbeat hot standby
by Wessel van der Aart 29 May '12

29 May '12

Hi List, I've setup 2 openldap servers in n-way multimaster replication mode in a test environment, both run centos 6.2, this works well but now i'm trying to make these 2 servers failover using heartbeat. i've got no experience with heartbeat (or setting up clusters in general) however from what i understand heartbeat starts/stops the service if the server has the virtual IP assigned or not. this would be fine for httpd , but since replication doesn't work when slapd is stopped i was wondering if anyone knows if there is a way to setup heartbeat with a hot standby? so that the service keeps running but the ip does gets reassigned when one goes down. Thanks, Wessel

4 5

Re: [CentOS] NTP and virtual guests
by James B. Byrne 28 May '12

28 May '12

On Mon, May 28, 2012 10:10, Bob Hoffman wrote: > On 5/28/2012 9:59 AM, James B. Byrne wrote: >> On Mon, May 28, 2012 08:50, Reindl Harald wrote: >>> >>> Am 28.05.2012 14:41, schrieb James B. Byrne: >>>> when power returned all of the restored guests were immediately >>>> shutdown by ntp because the time differential between the >>>> restored systems and that of the ntpd sync servers exceeded >>>> the panic threshold. >>> how can ntpd shutdown a guest? >> I have no idea. Perhaps I misunderstood what the ntpd man page >> referred to as a panic. >> >> If it is not ntpd then I still need to discover some way of ensuring >> that all the KVM guests that were active at the time of a power >> failure automatically come back on line when the KVM host system >> starts up. I cannot find any reference to how this is done. >> >> Are there any recommended solutions? These systems are on UPS >> already >> but the power failure duration exceeded the endurance of the the >> UPS. >> > I know when ntp changes the time drastically (like ntpdate) my vsftpd > just commits suicide and dies.. > I imagine something like that is going on with the lvm software either > on the host or the kvm? > > I would suggest turning off ntp before long time shut downs...and > (ugh) manually going through the host and all vms upon turn on and > ntpdate them, then turn ntp on, then reboot to make it all come > back on? > > perhaps a script that turns off ntp, runs ntpdate on host, then on > each kvm upon reboot? this sounds rather scary. > > I cannot find anything in the logs that explain what is happening to me. The evidence I have indicates that when the host kvm system is powered off and restarted then the guests do not restart. This behaviour is at variance with a controlled shutdown wherein active guests are (usually) restarted when the host reboots. I infer from this observation that system scripts already handle this more or less correctly. I suppose that I could just create an init script that read a custom status file and restated every domain that it found therein using virsh. However, if such a beast already exists then I would rather not have to reinvent the wheel. Is anyone aware of such a script or where one might be found? I am not havig much luck with Google this morning. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

2 1

PCI/DSS compliance on CentOS
by Arun Khan 28 May '12

28 May '12

I have a client project to implement PCI/DSS compliance. The PCI/DSS auditor has stipulated that the web server, application middleware (tomcat), the db server have to be on different systems. In addition the auditor has also stipulated that there be a NTP server, a "patch" server, The Host OS on all of the above nodes will be CentOS 6.2. Below is a list of things that would be necessary. 1. Digital Certificates for each host on the PCI/DSS segment 2. SELinux on each Linux host in the PCI/DSS network segment 3. Tripwire/AIDE on each Linux host in the PCI/DSS segment 4. OS hardening scripts (e.g. Bastille Linux) 5. Firewall 6. IDS (Snort) 6. Central “syslog” server However, beyond this I would appreciate any comments/feedback / suggestion if you or your organization has undergone a PCI/DSS audit and what are the gotchas that you encountered, especially with respect to CentOS/ open source stack. I came across this which kind of brings out issues between the implementer and the PCI/DSS auditor. <http://webmasters.stackexchange.com/questions/15098/pci-dss-compliance-for-…> Thanks very much. -- Arun Khan

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Discuss May 2012