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I cannot add user to a group permanently
by Xuwen Fang 16 Oct '16

16 Oct '16

Hello Everyone, I'm using a centos 7 server. I tried to add my own user to group 'apache' and it works temporarily. When I ssh to it later, I found my user not a member of group 'apache'. What's wrong with it? Thanks. Sincerely, Xuwen

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blacklist audio device ???
by Alice Wonder 16 Oct '16

16 Oct '16

SuperMicro server board being used as workstation. Board has no audio itself. I have USB headphones I sometimes plug in. Unfortunately every time I plug them in I have use to use audio control panel and choose them. Why? lspci |grep Audio 01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1) lspci -n |grep "^01:00.1" 01:00.1 0403: 10de:0be3 (rev a1) Seems the cheap nVidia 405 card I have installed has an audio controller (Interestingly reported as Intel HD Audio by the sound control panel) which I guess it has because of the HDMI interface. Is there a way to tell the sound system to pretend that controller isn't there? I will never need audio over the HDMI.

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CentOS-announce Digest, Vol 140, Issue 6
by centos-announce-request＠centos.org 15 Oct '16

15 Oct '16

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit https://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. Updated Vagrant Box's are now available : 1609 (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Fri, 14 Oct 2016 16:20:04 +0100 From: Karanbir Singh <kbsingh(a)centos.org> To: CentOS Announcements List <centos-announce(a)centos.org> Subject: [CentOS-announce] Updated Vagrant Box's are now available : 1609 Message-ID: <56c90b08-76ec-49c1-3d4b-c5fbddb28778(a)centos.org> Content-Type: text/plain; charset=windows-1252 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Updated Vagrant box's are now available for CentOS Linux 7 and CentOS Linux 6 for x86_64. These are available, as in the past, for the Libvirt and the VirtualBox providers in Vagrant. We have also enabled the vmware providers, for anyone using Vmware's products for backing Vagrant on Linux, MacOS or Windows. ref: https://atlas.hashicorp.com/centos/boxes/6 https://atlas.hashicorp.com/centos/boxes/7 Release Notes for these images are published at : https://seven.centos.org/2016/10/updated-centos-vagrant-images-available - -v1609-01/ We are doing all of our work, including build scripts and build content for these Vagrant Box's as a part of the CentOS Cloud Instance SIG. And host the content for contribution and participation at https://github.com/CentOS/sig-cloud-instance-build/tree/master/vagrant - - I would like to invite everyone to come join us and help extend the scope of this work, as well as improve the current results. regards, - -- Karanbir Singh, Project Lead, The CentOS Project +44-207-0999389 | http://www.centos.org/ | twitter.com/CentOS GnuPG Key : http://www.karan.org/publickey.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAEBAgAGBQJYAPekAAoJEI3Oi2Mx7xbtNK8H+gK051yYnUuNnU8kJgT0+nim /iOQHfJeg24w/pObUOl58v1/aAEUuLP2z/KvqEVCAfjWKRsO6I8+GjnFs5CdEj1v p+QpE7tyriu0Al2vseXlBjIuSLG8ELH16gFDZnLvzWnWItD5tm1T2eHtnoGimRBR 3XK/8BM50mqie7GBQeCMTbg0YygFWxTpTE2UipwtYjHoH0nBwXCUNWWkOV+z7qWM vg7kRBizt6NC++A4uROewk4Ez+jRvrmqqRrjc9V5peMBG2NALpS10hTqI3MUDuhI uvOFUycv1ZlBtWmou+vbkF0g2yPsFhrFa2WuLkG/olR45EmFfJ9/wKJC5zsl7RE= =xAPy -----END PGP SIGNATURE----- ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org https://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 140, Issue 6 ***********************************************

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IPv6 address configuration and default IPv6 address with CentOS 6.8?
by Walter H. 15 Oct '16

15 Oct '16

Hello, when I have this in /etc/sysconfig/network-scripts/ifcfg-eth0 TYPE=Ethernet NAME=eth0 NM_CONTROLLED=no ONBOOT=yes DEVICE=eth0 USERCTL=no ... IPV6INIT=yes IPV6ADDR=2001:DB8:DEAD:BEEF::10 IPV6ADDR_SECONDARIES="2001:DB8:DEAD:BEEF::20 2001:DB8:DEAD:BEEF::30 2001:DB8:DEAD:BEEF::40 2001:DB8:DEAD:BEEF::50" IPV6_AUTOCONF=no IPV6_DEFAULTGW=2001:DB8:DEAD:BEEF::1 IPV6_DEFAULTDEV=eth0 I have a virtual server, and there are the alias addresses splitted, e.g. IPv6 2001:DB8:DEAD:BEEF::40 is used by BIND (named, authoritativ DNS server) IPv6 2001:DB8:DEAD:BEEF::30 is used by MTA (postfix, DNS has this for MX of this domain) IPv6 2001:DB8:DEAD:BEEF::20 and 2001:DB8:DEAD:BEEF::10 are used by Apache (httpd) ... and this is also splitted in the firewallconfig ip6tables -A INPUT -d 2001:DB8:DEAD:BEEF::30 -m tcp -p tcp --dport 25 -m state --state NEW -j ACCEPT -A INPUT -m tcp -p tcp --dport 25 -j DROP -A INPUT -d 2001:DB8:DEAD:BEEF::40 -m tcp -p tcp --dport 53 -m state --state NEW -j ACCEPT -A INPUT -d 2001:DB8:DEAD:BEEF::40 -m udp -p udp --dport 53 -j ACCEPT -A INPUT -m tcp -p tcp --dport 53 -j DROP -A INPUT -m udp -p udp --dport 53 -j DROP where can I define which IPv6 address is used as source IP, when doing e.g. wget ... ssh ... ... | mail test(a)example.com ... Thanks, Walter

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CentOS-7-x86_64-GenericCloud.raw very unusual format
by Aliaksei Sheshka 15 Oct '16

15 Oct '16

Hello! Is anyone aware why CentOS-7-x86_64-GenericCloud.raw has such unusual format ? root@test-srv:~# wget http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.raw --2016-03-21 13:16:31-- http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.raw Resolving cloud.centos.org (cloud.centos.org) 162.252.80.138 Connecting to cloud.centos.org (cloud.centos.org)|162.252.80.138|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 374668382 (357M) [application/x-gzip] Saving to: 'CentOS-7-x86_64-GenericCloud.raw' CentOS-7-x86_64-GenericCloud.raw 100%[=========================================================================>] 357.31M 12.9MB/s in 30s 2016-03-21 13:17:03 (11.9 MB/s) - 'CentOS-7-x86_64-GenericCloud.raw' saved [374668382/374668382] Download reports [application/x-gzip] for raw file And indeed root@test-srv:~# file CentOS-7-x86_64-GenericCloud.raw CentOS-7-x86_64-GenericCloud.raw: gzip compressed data, last modified: Sat Feb 27 02:14:37 2016, from Unix Ok, lets uncompress: root@test-srv:~# zcat -d CentOS-7-x86_64-GenericCloud.raw > CentOS-7-x86_64-GenericCloud.a And check again root@test-srv:~# file CentOS-7-x86_64-GenericCloud.a CentOS-7-x86_64-GenericCloud.a: POSIX tar archive (GNU) Ok. it's a tar archive. root@test-srv:~# tar -xf CentOS-7-x86_64-GenericCloud.a -v CentOS-7-x86_64-GenericCloud-1602.raw Now it's CentOS-7-x86_64-GenericCloud-1602.raw file which is indeed raw What is the point to pack single raw file into the tar.gz and to name it raw ? Or it's just a mistake ? Thanks!

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[Fwd: CentOS 7 and exfat]
by Valeri Galtsev 14 Oct '16

14 Oct '16

Dear Experts, Could someone help Mark with his question. He appears to be blocked from ability to post to list at the moment. His question is below (and I personally have no idea how to help with that). Thanks. Valeri ---------------------------- Original Message ---------------------------- Subject: CentOS 7 and exfat From: m.roth(a)5-cent.us Date: Fri, October 14, 2016 10:39 am To: "CentOS" <centos(a)centos.org> Cc: "Valeri Galtsev" <galtsev(a)kicp.uchicago.edu> -------------------------------------------------------------------------- Valerie, I've been talking to my tech support, and need to bother them again, but I've been blocked by SORBS for two weeks now.... Could I trouble you to post this to the list? Hi, folks, User, upgrading <g> from Mac to Linux, has some flash drives that are a new format to me: exfat15. mount knows nussing, nussing I tell you. I can't find any packages in the std. repos, including elrepo. (I believe I've mentioned before that he doesn't want me to use, say, nux's.) Anything I can do? This is a system just built a week ago as CentOS 7. mark ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++

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Firefox and Chrome - dicking about with my volume.
by Gary Stainburn 14 Oct '16

14 Oct '16

I have Centos 7 installed on my laptop which works perfectly fine. I use a variety of music apps including VLS, mplayer and squeezelite. They all work fine, and using the KDE mixer app I have the levels set just as I like them. Why is it then that if i start up either Firefox or Chrome, whichever I start up first creates a new sound device which appears in the mixer, and then changes my master volume level. Firstly, why the hell does a web browser have to create a new sound device, and why the hell does it alter the master volume? Secondly, can anyone tell me how to take back control of my own music volume, and prevent both programs from messing with it?

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CentOS 7 and exfat
by m.roth＠5-cent.us 14 Oct '16

14 Oct '16

Valerie, I've been talking to my tech support, and need to bother them again, but I've been blocked by SORBS for two weeks now.... Could I trouble you to post this to the list? Hi, folks, User, upgrading <g> from Mac to Linux, has some flash drives that are a new format to me: exfat15. mount knows nussing, nussing I tell you. I can't find any packages in the std. repos, including elrepo. (I believe I've mentioned before that he doesn't want me to use, say, nux's.) Anything I can do? This is a system just built a week ago as CentOS 7. mark

1 0

Disable hybernate/suspend in CentOS 7
by Valeri Galtsev 14 Oct '16

14 Oct '16

Dear Experts, Could someone point me in the right direction: how can I disable hybernate/suspend in CentOS 7? I get workstations for graduate students with decent amount of RAM (32 GB), and for machines with large RAM I either do not have swap at all of have some small (4 GB) swap. As I remember from older manuals, one has to have at least twice amount of swap compared to physical RAM for hybernate/suspend to work. This probably is what bit me: new Dells came with keyboard that has sleep button, when one hits that button the machine locks up. (it stays powered on, does not respond mouse, keyboard, does not respond ping). I would like to disable that sleep button on keyboard. (I'm kind of trying to avoid replacing keyboard with the ones that do not have "sleep" key). Thanks a lot for all your help! Valeri ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++

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Backup Suggestion on C7
by Alessandro Baggi 14 Oct '16

14 Oct '16

Hi list, I'm building a backup server for 3 hosts (1 workstation, 2 server). I will use bacula to perform backups. The backup is performed on disks (2 x 3TB on mdraid mirror) and for each hosts I've created a logical volume with related size. This 3 hosts have different data size with different disk change rate. Each host must have a limited sized resource and a reserved space. If a server needs more space to perform backup, It must be enabled and provisioned. My first solution was put each host pools on different logical volumes, like: host1 -> lv1 host2 -> lv2 host3 -> lv3 and store pools/volumes on specified storage daemon that uses a specified device for each different hosts. host1 -> storage1 -> device_lv1 host2 -> storage2 -> device_lv2 host3 -> storage3 -> device_lv3 Unfortunately, I can't define on bacula-sd.conf multiple storage definition but only multiple devices. To use different storage I must run 3 bacula-sd on same host (I can?), run a bacula-sd on a vm/host. Ah, I must use only one physical server. With one single machine and the current state I can't use multiple storage daemons. There are other ways to store host volumes on different devices? My second solution was, use only one storage daemon (on the same host) with a single device LVM over mdraid, create pool for each hosts and limit the size for each volumes on related pool. Suggestions? Thanks in advance.

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