Discuss April 2015

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Centos 5 & tls v1.2, v1.1
by Eero Volotinen 17 Apr '15

17 Apr '15

Hi, Is there any nice way to get tlsv1.2 support to centos 5? upgrading os to 6 is not option available. -- Eero

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Install Bind with gss-spnego enabled
by Mike 17 Apr '15

17 Apr '15

CentOS 7.1503 installed. Installed Samba 4 from sernet: Version 4.1.17-SerNet-RedHat-11.el7 (to be configured). The samba wiki Readme First page states, "Some distributions like . . . Red Hat Enterprise Linux (and clones), ship BIND9 packages with disabled GSS-SPNEGO option, which is required for signed DNS updates when using BIND as DNS backend on your Samba DC. This circumstance requires to self compile BIND9." Is there any way to use a yum command to install Bind9 with gss-spnego enabled? I'm worried about installing from source and creating future problems when trying to update other CentOS packages that may be affected by the source install of Bind9. Is it safe to obtain a bind9 source tarball for install on an rpm-based CentOS 7 server? If anyone has installed Bind for use with Samba 4 on CentOS 7, please let me know what worked. Thanks for your time and patience.

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Re: [CentOS] Mailman, junk mail, DMARC and DKIM
by James B. Byrne 17 Apr '15

17 Apr '15

https://bugzilla.redhat.com/show_bug.cgi?id=1095359 Jan Kalua <jkaluza(a)redhat.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Fixed In Version|mailman-2.1.12-22.el6 |mailman-2.1.12-23.el6 Tadaaah! -- *** 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

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CentOS-announce Digest, Vol 122, Issue 9
by centos-announce-request＠centos.org 17 Apr '15

17 Apr '15

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-2015:0817 CentOS 6 kdelibs BugFix Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Thu, 16 Apr 2015 17:46:06 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CEBA-2015:0817 CentOS 6 kdelibs BugFix Update Message-ID: <20150416174606.GA12699(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2015:0817 Upstream details at : https://rhn.redhat.com/errata/RHBA-2015-0817.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: c975b917bdae041e063e7c6e10feb945b75353d41a999128ac57a2afa8f219ce kdelibs-4.3.4-23.el6_6.i686.rpm 389b3427db0aa9c1ec190b68ebbeb96b1c5608226a7865c0ab10bbc4d541a4d9 kdelibs-apidocs-4.3.4-23.el6_6.noarch.rpm 0ca04fb3a946ebd75935d94dcc17be09cf98debc046d47ac5faca5ced067d477 kdelibs-common-4.3.4-23.el6_6.i686.rpm 85b1234aa3b4a233c8c8c72369e8bb07e37401387d5ef7c174e052ccec63f3da kdelibs-devel-4.3.4-23.el6_6.i686.rpm x86_64: c975b917bdae041e063e7c6e10feb945b75353d41a999128ac57a2afa8f219ce kdelibs-4.3.4-23.el6_6.i686.rpm ac4a090e2040bc0c86bb16d1202e8374003e31c26a83ccd01dfcd8f941deb818 kdelibs-4.3.4-23.el6_6.x86_64.rpm 389b3427db0aa9c1ec190b68ebbeb96b1c5608226a7865c0ab10bbc4d541a4d9 kdelibs-apidocs-4.3.4-23.el6_6.noarch.rpm 582cfb9cce3c4a34e021b63177c89201dcde6623cd424f560cc4a241e984d07b kdelibs-common-4.3.4-23.el6_6.x86_64.rpm 85b1234aa3b4a233c8c8c72369e8bb07e37401387d5ef7c174e052ccec63f3da kdelibs-devel-4.3.4-23.el6_6.i686.rpm dcca1c741d99e7a608b4a2bc21a06dcd1a3ce1c51e472f30a284a47696baea14 kdelibs-devel-4.3.4-23.el6_6.x86_64.rpm Source: cfa00bed58c19b65415066f6cecd188637af37c34ec9d5ef429850e6f87960c2 kdelibs-4.3.4-23.el6_6.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 122, Issue 9 ***********************************************

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systemd private tmp dirs
by Les Mikesell 16 Apr '15

16 Apr '15

Is there a generic way that processes written to share files with (say) apache in /tmp can figure out that they are running on an OS with systemd and in that case, where the daemon in question thinks /tmp is? For example, twiki has a backup/restore add-in where the backup part is normally done from cron with a command line script but the resulting archives that go in /tmp are supposed to be seen in the web interface where you can choose and restore from them. How should that have been written so the file lands where systemd has remapped /tmp for httpd if it happens to be running on a host with systemd? -- Les Mikesell lesmikesell(a)gmail.com

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Where's the debuginfo?
by Eric Millbrandt 16 Apr '15

16 Apr '15

Hello all, According to [CentOS-announce] Release for CentOS Linux 7 (1503 ) on x86_64: "Debuginfo packages are also being signed and pushed. Yum configs shipped in the new release file will have all the context required for debuginfo to be available on every CentOS Linux install." Specifically, I'm looking for kernel-debuginfo-3.10.0-229.1.2.el7.x86_64, but the latest debuginfo file is kernel-debuginfo-3.10.0-123.13.2.el7.x86_64.rpm, which isn't even the most recent release from 7.0.1406. Is my Google-fu failing me or is http://debuginfo.centos.org/7/x86_64/ no longer the current debuginfo repo? e

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Modifying files of NFS
by Dennis Jacobfeuerborn 16 Apr '15

16 Apr '15

Hi, I have an NFS storage system and want to run jpegoptim on several GB's of jpeg images and I'm wondering what the best approach is. Is it ok to run this operation on the Server itself while the clients have it mounted or will this lead to problems like e.g. the dreaded "stale filehandle"? Regards, Dennis

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Update to 1503 release problem
by Alessandro Baggi 16 Apr '15

16 Apr '15

Hi there, Yesterday I've updated from 7 to 7.1 and today I've noticed on 2 server that postgresql systemd file was replaced with default values. This make postgres to no start and webserver give me problem. This problem was fixed and now all works good. It's normal that on major update I can get this problem? If so, I've ridden release change but I have not ridden about postgresql problem. Someone had the same issue?

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Related to the new laptop question: CentOS on a netbook?
by m.roth＠5-cent.us 16 Apr '15

16 Apr '15

I've got a netbook, circe 2009. When I got it, not that I was wild about ubuntu, but there was specifically an ubuntu netbook remix. Well, it's a few years later - has anyone put CentOS (6, preferably) on a netbook, and were there any problems? mark

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Routing setup questions
by James B. Byrne 15 Apr '15

15 Apr '15

I am experimenting with routing tables to obtain a little understanding of how things work. I have a kvm hypervisor host (KVM1) with two physical Ethernet nics configured as bridges (br0 and br1). KVM1 br0 is configured with a public ipv4 address [x.y.z.42/24] and br1 is configured with a private ipv4 address [192.168.216.42/24]. A second kvm hypervisor, KVM2, is similarly configured albeit with different IPv4 addresses of course. Packet forwarding is enabled on both hypervisor hosts and both have IPTABLES configured, albeit not for masquerading. Guest systems on each of the two kvm hosts are also configured with two virtual nics, eth0 and eth1, mapped to br0 and br1 respectively. Guests on KVM2 usually have eth0 downed and eth1 configured with a private ipv4 address in this address space, [192.168.216.0/24]. Guests on KVM1 usually have eth0 configured with a public ipv4 and always have eth1 configured with a private address also belonging to [192.168.216.0/24]. The KVM1 hypervisor host has its br1 connected via x-over cable to the br1 port of the KVM2 hypervisor host. The reason for the X-over is to allow matching guests on the different KVM systems to conduct large network transfers between themselves without hitting the LAN. We have a gateway router whose eth1 faces the LAN with the public address [x.y.z.1/24] and the WAN with an address in the form [x.y.A.0/30]. The ASCII diagram below represents the situation. You will need to view this part with a monospaced font. <pre> ~ ISP ethx[x.y.A.2/30] >-----< eth0[x.y.A.3/30] | ISP GWAY | eth1[x.y.z.1/24] >----------< | GWAY | | br0[x.y.z.42/24] >---------------------------------< | KVM2 | br0[x.y.z.42/24] >-----< | KVM1 ~ br1[192.168.216.43/24] >--X--< br1[192.168.216.42/24] KVM2 KVM1 | | | | >-----< eth1[192.168.216.21/24] | | >-----< eth1[192.168.216.25/24] | | eth1[192.168.216.221/24] >-----< | eth1[192.168.216.223/24] >-----< | </pre> This setup works as intended. However, it is sufficiently oddball that I consider it a good candidate to discover for myself the practical issues surrounding network routing, a field of knowledge of which I readily admit profound ignorance. My trial is to allow a ping from eth1[192.168.216.221/24] to reach any other public addressed [x.y.z.0/24]i/f on the LAN and successfully be returned. The questions are: 1. What additional (virtual) network i/f(s) needsbe configured to get this to happen? 2. Do any systems require static routes to be preconfigured? If so, which systems and what is that configuration? 3. Is masquerading required or not? My thoughts so far: The default gateway for all of the public hosts on our LAN is eth1[x.y.z.1/24] so it seems necessary that eth1 on GWAY must have some interface that recognizes [192.168.216.0/24] and a route that will send the ping back to the public i/f from which it originates, br0[x.y.z.42/24]. The KVM1 host must have a route to allow [192.168.216.221/24] out onto the LAN via br0[x.y.z.42/24] for all destinations other than [192.168.216.0/24] and route that netblock via br1[192.168.216.42/24]. If this is anywhere near the actual requirements then I think something like this is required on GWAY eth1[x.y.z.1/24]: ifcfg-eth1:192168 BOOTPROTO=none BROADCAST=192.168.255.255 DEVICE=eth1:192168 IPADDR=192.168.0.1 IPV6INIT=no NETMASK=255.255.0.0 NETWORK=192.168.0.0 #ONBOOT=yes ONPARENT=yes route-eth1 192.168.216.0/24 via x.y.z.42 dev eth1 And on KVM1 I would need: ifcfg-br0 BOOTPROTO="none" DEFROUTE="yes" DEVICE="br0" GATEWAY="x.y.z.1" IPADDR="x.y.z.42" IPV4_FAILURE_FATAL="no" IPV6INIT="no" NAME="System br0" NETMASK="255.255.255.0" NETWORK="x.y.z.0" NM_CONTROLLED="no" ONBOOT="yes" TYPE="Bridge" USERCTL="no ifcfg-br1 BOOTPROTO="none" DEVICE="br1" GATEWAY="x.w.z.42" IPADDR="192.168.216.42" IPV4_FAILURE_FATAL="no" IPV6INIT="no" NAME="System br1" NM_CONTROLLED="no" ONBOOT="yes" PREFIX="24" TYPE="Bridge" USERCTL="no" How far off am I in these musings? I would like to have some clue of the trouble I am in for before I go and break something. Your comments and suggestions are welcome. -- *** 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

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Discuss April 2015