Discuss March 2013

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230 discussions

2 questions re UPS management
by Fred Smith 21 Mar '13

21 Mar '13

Hi, trying to figure out how the system manages UPS connections. On both Centos 5.9 and 6.4, merely plugging in a USB UPS device causes an icon to appear in the top panel, and (at least on 5.9, haven't yet tested this in 6.4) when the UPS suffers a power failure the system notices and after a bit does a clean shutdown. All this without installing ANYTHING extra. one of the UPSes I'm using is a tripplite (now on 6.4 x86_64, but formerly on the same machine with 5.9 i686), the other is a CyberPower UPS on a different 5.9 machine. question #1: in 5.9 there are two entries in /etc/inittab, one for power fail and the other for power restoration. The default setting for the powerfail entry has it doing a shutdown in 2 minutes. So, I need to tweak it a bit: that UPS powers two computers, the Centos 5.9 box and a Windows XP box. A little googling showed me how to use Samba tools to tell XP to do a shutdown. That works fine. but if I add the command for that into the inittab entry I get an error message (when power fails) about the line being too long. So, I created a shellscript that runs both the command to tell XP to go down, followed by the shutdown command that tells Centos to shut down. I changed the two minute time to 5 minutes to make sure Windoze is all the way down even if it's busy. When I run this script from the commandline it works just fine. but when I turn off input power to the UPS it starts the XP shutdown then within without waiting the specified length of time, initiates the shutdown of Linux. Once the shutdown is done, the UPS powers off, thereby killing the not-yet-shutdown windoze box. #!/bin/sh # # invoked by the poweroff clause in /etc/inittab instead of the command # originally in that place. This one also shuts down the Windoze box. net rpc SHUTDOWN -C "System shutting down NOW due to power failure" -f -I 172.19.23.120 -U <myusername>%<mypassword> /sbin/shutdown -f -h +5 "Power Failure; System Shutting Down" and here's the entry from inittab: pf::powerfail:/etc/powerfail The shellscript does contain "#!/bin/sh" as its first line, but it is currently being invoked simply by the path to the script. when I get back to the office I'll try changing it to "/bin/bash /etc/powerfail" to see if that makes a difference, but I kinda don't expect it to. So, I'm wondering how the underlying mechanism works, AND if anyone knows how (or even IF) it's possible to hand inittab a script to run instead of burying the necessary commands directly into the inittab entry. Question #2: On the Centos 6.4 box at home, I haven't yet tried turning off power to the UPS to see if it actually shuts doown, but given that a UPS icon appears in the panel, and there are settings for what should happen when power fails, I expect it will. The question here is: how does this magic all work? We no longer have any entries in inittab to manage this, apparently we now use upstart to manage the same things, and I've spent some time digging for man pages and looking around for upstart file(s) to find out how such events are handled, and so far I've not found anything specifically for a "powerfail" event. Clues appreciated, thanks all! Fred -- ------------------------------------------------------------------------------- Under no circumstances will I ever purchase anything offered to me as the result of an unsolicited e-mail message. Nor will I forward chain letters, petitions, mass mailings, or virus warnings to large numbers of others. This is my contribution to the survival of the online community. --Roger Ebert, December, 1996 ----------------------------- The Boulder Pledge -----------------------------

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boot problem on Desktop edition 6.4
by Mustafa DEMiRCi 21 Mar '13

21 Mar '13

Hi dear friends for three days . I have a problem . Shortly I have Hp elitebook with Centos 6 nearly more than one year without any problem When last update for kernel 2.6.32-358.2.1.el6.x86_64 was realeased. I did not restart machine. After 3 days I started machine and I got a error message of getaddrinfo() problem of solving host name. And there is showed of bugs.centos.org. I reconfig /etc/hosts and restart machine after startin libvirtd (OK) There is nothing. I can't see my gnome desktop (Maybe this was a problem of another update which was same time with 2.6.32-358.2.1.el6.x86_64 ) Some googling and looking some forums I saw another people like me They have same problems. I reinstall kernel and tried alternatives/java but couldn't solve problem. yum reinstall \* did not solved my problem . After starting libvirtd(OK) . There is nothing . Maybe this is coming from my Nvidia card ? Have you any ideas ? Regards. Mustafa Demirci

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CentOS: Install Packages Via yum Command Using DVD / CD as Repo
by Al Sparks 21 Mar '13

21 Mar '13

I'm confused about this. Is this supposed to work without me mounting my CD/DVD? If you are supposed to mount it, what path should you use to make this work? http://www.cyberciti.biz/faq/centos-linux-install-packages-from-dvd-using-y… === Al

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Advanced Persistent Threats; Why aren't we confining Firefox and Evolution?
by David McGuffey 21 Mar '13

21 Mar '13

Moat of the advanced persistent threats (APT) are initiated via e-mail. Opening an attachment or clicking on a web link starts the process. Why isn't Firefox and Evolution confined with SELinux policy in a way that APT can't damage the rest of the system? Why are we not sandboxing these two apps with SELinux? I've discovered some guidance for sandboxing Firefox using the 'sandbox' command. Once I test it a bit, I'll post the results back here. Seems to me that if this works, it should be the default. DaveM

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Newer version of ftdi_sio
by Stephen Harris 21 Mar '13

21 Mar '13

I have just bought an FTDI USB UART New USB device found, idVendor=0403, idProduct=6015 New USB device strings: Mfr=1, Product=2, SerialNumber=3 Product: FT231X USB UART Manufacturer: FTDI However this appears to be slightly too new for the ftdi_sio driver in C6.4; it's not detected. If I force it modprobe ftdi_sio vendor=0x0403 product=0x6015 then it gets detected as a FT232RL which is _close_... but doesn't seem to quite work. If I use "kermit -l /dev/ttyUSB0 -C 'transmit foo,quit'" then I get "Timeout" errors from kermit. If I plug the same adapter into a Ubuntu 12.10 instance it detects as FT-X and the same kermit command works correctly. So I guess I need a newer ftdi_sio driver; has anyone built such, or have instructions? -- rgds Stephen

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Warning Error procesing LVM.
by Rob Townley 21 Mar '13

21 Mar '13

Warning Dialog Box that appears when trying to use CentOS 6.4 32bit to upgrade a preupgrade failure of Fedora 13 to Fedora 15. Need to make certain Re-initialize will not delete all my files, but just rebuildable metadata. "There is inconsistent LVM data on Volume Group vg_ec239dict. You can reinitialize all related PVs (/dev/sdb2, /dev/sda2) which will erase the LVM metadata, or ignore which will preserve the contents. This action may also be applied to all other PVs with inconsistent metadata." clickable options are: Ignore Ignore all Re-initialize Re-initialize all

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difficulty saving pdfs
by Michael Hennebry 20 Mar '13

20 Mar '13

Often when I try "Save a copy" from a pdf viewer, I get a nyet, no such file as /tmp/s.../... . Making the indicated directory allows the save. What is the problem? Is it a gnome thing? What can I do to fix it? -- Michael hennebry(a)web.cs.ndsu.NoDak.edu "On Monday, I'm gonna have to tell my kindergarten class, whom I teach not to run with scissors, that my fiance ran me through with a broadsword." -- Lily

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CentOS 6.4 kickstart bonding
by Baptiste AGASSE 20 Mar '13

20 Mar '13

Hi all, Someone played with kickstart bonding with centos 6.4 ? CentOS 6.4, as upstream now support ifcae bonding in kickstart network section. I've an issue with configuring a second bonding iface in kicstart on CentOS 6.4. The first bonding (bond0) works as espected but the second is not configured during installation. I've a 6 nic server (two for "puclic" network, two for cluster network, two for iscsi network) here is my "network" kickstart section: # "Public" network, bond0 created, it works fine, network --device=bond0 --noipv6 --bootproto=static --onboot=yes --hostname=box.example.com --ip=192.168.1.3 --netmask=255.255.255.0 --gateway=192.168.1.1 --nameserver=192.168.1.1 --bondslaves=p1p1,p1p2 --bondopts=mode=active-backup,primary=p1p1,miimon=80,updelay=60000 # Cluster network, not created on install network --device=bond1 --noipv6 --nodns --nodefroute --bootproto=static --onboot=yes --ip=192.168.2.2 --netmask=255.255.255.0 --bondslaves=em1,em2 --bondopts=mode=active-backup,primary=em1,miimon=80,updelay=60000 # ISCSI network network --device=p1p3 --noipv6 --nodns --nodefroute --bootproto=static --onboot=yes --mtu=9000 --ip=192.168.3.1 --netmask=255.255.255.0 network --device=p1p4 --noipv6 --nodns --nodefroute --bootproto=static --onboot=yes --mtu=9000 --ip=192.168.3.2 --netmask=255.255.255.0 # bond slave network --device=em1 --noipv6 --nodns --bootproto=static --onboot=yes # bond slave network --device=em2 --noipv6 --nodns --bootproto=static --onboot=yes # bond slave network --device=p1p1 --noipv6 --nodns --bootproto=static --onboot=yes # bond slave network --device=p1p2 --noipv6 --nodns --bootproto=static --onboot=yes when i check anaconda-ks.cfg on the installed host, the second bonding iface (bond1) is not present. No error displayed during install or present in install log files on installed hosts. Maybe Have a nice day. Regards. Baptiste.

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CentOS-announce Digest, Vol 97, Issue 11
by centos-announce-request＠centos.org 20 Mar '13

20 Mar '13

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-2013:0663 Moderate CentOS 6 sssd Update (Johnny Hughes) 2. Announcing the CentOS Dojo at Antwerp 2013, Apr 8th (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Tue, 19 Mar 2013 20:52:34 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CESA-2013:0663 Moderate CentOS 6 sssd Update To: centos-announce(a)centos.org Message-ID: <20130319205234.GA31320(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2013:0663 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2013-0663.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: b4b97291e19085aa668313551e9531750c5a610341cd39fb9fee55cd779542aa libipa_hbac-1.9.2-82.4.el6_4.i686.rpm 3a0a0fc366f8e6001372d4896d1d862b1c3282619803a6475becafaa5dab4366 libipa_hbac-devel-1.9.2-82.4.el6_4.i686.rpm a232e58bcf6cfea775eeebb9be357d0b0c3c1293d746ca0773f77dbf9a8ef3f5 libipa_hbac-python-1.9.2-82.4.el6_4.i686.rpm f5cdcc1bf948f9e5eb2049c9bb868681a3077851ad8cde8d989abd71f1e6d9f9 libsss_autofs-1.9.2-82.4.el6_4.i686.rpm 5b9d5226e47943492bd4d64875bf3ad2bcad40968fc66d1db98b5b9406c0a0e1 libsss_idmap-1.9.2-82.4.el6_4.i686.rpm e17fd89b009c68338571dd6879d9f820c56181d0de734ea97b7f935f6650a508 libsss_idmap-devel-1.9.2-82.4.el6_4.i686.rpm 9fe5dea59306988c44240e7e856511127a075e439624db7525bb5ca017f8e686 libsss_sudo-1.9.2-82.4.el6_4.i686.rpm f2929f4d2b5d4a1f60cc64472b5da5e38cec9ef47104e53cb0df5cf214eaeda3 libsss_sudo-devel-1.9.2-82.4.el6_4.i686.rpm 95d17a4a9abe131589923918e7f49e769a4c409e8503040e8921b22c878f4863 sssd-1.9.2-82.4.el6_4.i686.rpm 4df388f56d905a7b62dfff325535af5dd26eb4e809c6d51812e741557de27e75 sssd-client-1.9.2-82.4.el6_4.i686.rpm 6f54b373666c7c5c60de3fbca8cbb669f18f42f582c238840d0282641c5393eb sssd-tools-1.9.2-82.4.el6_4.i686.rpm x86_64: b4b97291e19085aa668313551e9531750c5a610341cd39fb9fee55cd779542aa libipa_hbac-1.9.2-82.4.el6_4.i686.rpm 53a0326d7dca701c14d00a9ff4366a87b1d1ccaa18c996e72fe0cec070984e4d libipa_hbac-1.9.2-82.4.el6_4.x86_64.rpm 3a0a0fc366f8e6001372d4896d1d862b1c3282619803a6475becafaa5dab4366 libipa_hbac-devel-1.9.2-82.4.el6_4.i686.rpm b59da50e548aa9a2a9c3c306818bb5641a69c889766ddf5a6d652e5823a1f4df libipa_hbac-devel-1.9.2-82.4.el6_4.x86_64.rpm 45378ae8296b8db59ce44f5dc0804846433e6a1894af81c984655c9b871882e7 libipa_hbac-python-1.9.2-82.4.el6_4.x86_64.rpm 3b18a8fd19d19f25b4953e372c32cf03a4c3b93e5767b1f3434218ade33725ec libsss_autofs-1.9.2-82.4.el6_4.x86_64.rpm 5b9d5226e47943492bd4d64875bf3ad2bcad40968fc66d1db98b5b9406c0a0e1 libsss_idmap-1.9.2-82.4.el6_4.i686.rpm 348a4030296b3ccbb70f601e218083837c49142a95c17b6e875d2cd9984d7567 libsss_idmap-1.9.2-82.4.el6_4.x86_64.rpm 3893265665f2140a34415246b9b7b88ce2a7efb9a8a4fbcc9ddb014d5446017b libsss_idmap-devel-1.9.2-82.4.el6_4.x86_64.rpm 58d1ccdab918066bc40813f1383b53061dda87e3123922c14f065478034a423d libsss_sudo-1.9.2-82.4.el6_4.x86_64.rpm 2d49e3b731de1411c1091a93b99936d5477b90fb57b2824373a7532ad9c67efe libsss_sudo-devel-1.9.2-82.4.el6_4.x86_64.rpm 29435958b33812a7da961685a7c187ab8fbc7f4475bd7b36d7053ac19917006f sssd-1.9.2-82.4.el6_4.x86_64.rpm 4df388f56d905a7b62dfff325535af5dd26eb4e809c6d51812e741557de27e75 sssd-client-1.9.2-82.4.el6_4.i686.rpm f97af657c9fccd9e6abc6ab4617274718096c9035b586f1ffb5e3d85967ba714 sssd-client-1.9.2-82.4.el6_4.x86_64.rpm d39470591d95b352063eb3ab7b5ff0f639781023f39b929a0fd7bbe3bd6ca3a1 sssd-tools-1.9.2-82.4.el6_4.x86_64.rpm Source: e55e54c648a0ecf6ce20196554e12ef0a1965e159a65d5e1fbea1e77b68dd288 sssd-1.9.2-82.4.el6_4.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Wed, 20 Mar 2013 11:22:52 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] Announcing the CentOS Dojo at Antwerp 2013, Apr 8th To: CentOS Announcements List <centos-announce(a)centos.org> Message-ID: <51499C0C.2050905(a)centos.org> Content-Type: text/plain; charset=ISO-8859-1 Hi, The first ever CentOS Dojo, a one day training and socalising day dedicated to CentOS and how people use it, will be held at Antwerp, Belgium on the 8th of Apr. You can see the speakers lineup on the events page at : http://wiki.centos.org/Events/Dojo/Antwerp2013 - we have tried to cover all the major conversation areas around CentOS these days. Starting from provisioning, management, app deployments, system and virtualisation tuning, virtual infrastructure and more. Jump directly to the registration page : http://centosdojoantwerp2013.eventbrite.com/ Venue Address: Don Bosco werken ?n leren Valkenveld 70 2610 Wilrijk Belgium Its going to be a great day, register up, and see you all there. And remember, there is an exclusive CentOS Dojo Tshirt for everyone who attends. - KB -- Karanbir Singh, The CentOS Project +44-207-0999389 | http://www.centos.org/ | twitter.com/CentOS GnuPG Key : http://www.karan.org/publickey.asc ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 97, Issue 11 ***********************************************

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Routing
by Prabhpal S. Mavi 20 Mar '13

20 Mar '13

Greetings Dear CentOS List Guys i have some specific requirement but at this point i only with to know if the following is possible. 1.) CENTOS Machine Acting as Router 2.) Machine is part of 10 VlANs Using 10 local interfaces Is it possible that i can identify the source traffic and forward it to the specific interface. i.e. Remote packet coming from 192.168.21.0 should be forward to 192.168.20.20 (eth1) Is that possible ? Thanks / Regards

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Discuss March 2013