Discuss August 2016

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135 discussions

Re: [CentOS] CentOS 6: files now owned by nobody:nobody
by John R Pierce 29 Aug '16

29 Aug '16

On 8/29/2016 3:59 PM, Pat Haley wrote: > We are running a cluster under CentOS 6.6. We recently attached a new > NAS device, running CentOS 6.8 and rsync'd our user file system to > it. We noticed that all the files were owned by nobody (with nobody > as the group). We copied over the /etc/passwd and /etc/group files > from our front-end server to our NAS server. If we log in to the NAS > server we see the files owned by their correct owners. However, doing > an ls from the front-end server or any of the compute nodes still > shows the files owned by "nobody". We rebooted one of the compute > nodes but it still sees the files owned by nobody. a CentOS server isn't really a 'NAS device', as NAS implies an appliance storage device. this is NFS? NFSv3, or NFSv4? what NFS options are on the server and on the NFS mount? quite often NFS servers force root to nobody. -- john r pierce, recycling bits in santa cruz

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None
by None 29 Aug '16

29 Aug '16

by outgoing.mit.edu (8.13.8/8.12.4) with ESMTP id u7TMxYi2018663 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT) for <centos(a)centos.org>; Mon, 29 Aug 2016 18:59:35 -0400 To: centos(a)centos.org From: Pat Haley <phaley(a)mit.edu> Message-ID: <d80864bd-9497-86be-d8db-cdf3c0378d7c(a)mit.edu> Date: Mon, 29 Aug 2016 18:59:31 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrPIsWRmVeSWpSXmKPExsUixCmqrRux70i4wcJOMYtlZxYwOzB6rGyb zBzAGMVlk5Kak1mWWqRvl8CVcf70RNaC2RwVk/dMY2pgnMvWxcjJISFgIrGldTJrFyMXh5BA G5PEmwOT2SGck4wSfx/1sUA4B5kkjvW9ZQVpEREQlehZ/AqsnU1AQWLdrTPsILawgLHE3ua3 zCA2r4CVxPGHvxhBbBYBVYlLM+aA1YsKREjcWvWREaJGUOLkzCcsIDazgJnEvM0PmSFseYnt b+cwT2DknYWkbBaSsllIyhYwMq9ilE3JrdLNTczMKU5N1i1OTszLSy3SNdPLzSzRS00p3cQI Cid2F+UdjC/7vA8xCnAwKvHwWjgdCRdiTSwrrsw9xCjJwaQkyjs1HijEl5SfUpmRWJwRX1Sa k1p8iFGCg1lJhNd/E1CONyWxsiq1KB8mJc3BoiTO2zXjQLiQQHpiSWp2ampBahFMVoaDQ0mC l3UvUKNgUWp6akVaZk4JQpqJgxNkOA/Q8DCQGt7igsTc4sx0iPwpRkUpcd7SPUAJAZBERmke XC843tXYD71iFAd6RZhXG6SdB5gq4LpfAQ1mAhpccOcwyOCSRISUVAOjXLhTjFpr1FumG1/e yu09w9DuVbNZTuJk4jPXvRyHVbvEGhunT5ZIN6wyd0pjkj3HJq2gf+nhVe9Y6/MPrcRURdiW 8T4+IfCG4fqRE4GrfRi4NgcfrdK3mffA53rf31wjY2bWSWkT2ErO62i8jZ4sc/XUWea/dVHF s5/vuLg31zr/m1Zw5yolluKMREMt5qLiRADDYFna0gIAAA== Subject: [CentOS] CentOS 6: files now owned by nobody:nobody X-BeenThere: centos(a)centos.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: CentOS mailing list <centos.centos.org> List-Unsubscribe: <https://lists.centos.org/mailman/options/centos>, <mailto:centos-request@centos.org?subject=unsubscribe> List-Archive: <http://lists.centos.org/pipermail/centos/> List-Post: <mailto:centos@centos.org> List-Help: <mailto:centos-request@centos.org?subject=help> List-Subscribe: <https://lists.centos.org/mailman/listinfo/centos>, <mailto:centos-request@centos.org?subject=subscribe> X-List-Received-Date: Mon, 29 Aug 2016 22:59:36 -0000 Hi, We are running a cluster under CentOS 6.6. We recently attached a new NAS device, running CentOS 6.8 and rsync'd our user file system to it. We noticed that all the files were owned by nobody (with nobody as the group). We copied over the /etc/passwd and /etc/group files from our front-end server to our NAS server. If we log in to the NAS server we see the files owned by their correct owners. However, doing an ls from the front-end server or any of the compute nodes still shows the files owned by "nobody". We rebooted one of the compute nodes but it still sees the files owned by nobody. Any advice would be greatly appreciated. Thanks -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Pat Haley Email: phaley(a)mit.edu Center for Ocean Engineering Phone: (617) 253-6824 Dept. of Mechanical Engineering Fax: (617) 253-8125 MIT, Room 5-213 http://web.mit.edu/phaley/www/ 77 Massachusetts Avenue Cambridge, MA 02139-4301

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ipsets/iptables question
by TE Dukes 29 Aug '16

29 Aug '16

Hello, I have ipsets setup with a set of ip address that are badbots that won't comply with robots.txt This is a home server and these are most likely up to no good. I came up with a script to extract ip address from my access_log then another script to take ips and import them into my blacklist set. (see my scripts in the .htaccess thread) I can set these up as cron jobs but I'm not sure about the following: 1) after importing/updating the set, do I need to perform a, ipset save blacklist Since I haven't changed the rule in iptables, do I need to run these? 2) service iptables save 3) service iptables restart Thank!!

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Loaded: not-found (Reason: No such file or directory)
by Kaushal Shriyan 29 Aug '16

29 Aug '16

Hi, I am seeing the below issue. [user~]# systemctl list-unit-files | grep nrpe [user~]# service nrpe status Redirecting to /bin/systemctl status nrpe.service ● nrpe.service * Loaded: not-found (Reason: No such file or directory)* Active: inactive (dead) [user~]# rpm -qa | grep nrpe nrpe-3.0-1.x86_64 nrpe-plugin-3.0-1.x86_64 [user~]#cat /etc/redhat-release *CentOS Linux release 7.2.1511 (Core)* [user~]# Any help will be highly appreciable and please let me know if anyone needs any additional information. Regards, Kaushal

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Gnome weather applet stranded
by isdtor 29 Aug '16

29 Aug '16

The Gnome weather report applet has ceased working on CentOS5/6. http://weather.noaa.gov/ says "This service is no longer available". Are there any good alternatives? I liked the applet as it allowed the use of a custom radar map. As I just discovered, the weather functionality of the CentOS6 Gnome clock applet was using the same service.

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Off Topic: CentOS Public mirror question
by Valeri Galtsev 29 Aug '16

29 Aug '16

Dear All, My apologies for asking my question on less appropriate list. I did ask it on centos-mirror(a)centos.org, but that list is really low traffic (and slow response probably - I only got acknowledgement of my post...). On the other hand, I'm sure there are many public mirror maintainers on this list who may help me with my trouble. Upon replacing faulty machine hosting public mirrors I have noticed that I can not rsync CentOS (all other mirrors do rsync happily as they did on failed box). I probably have missed some announcement, so my apologies for asking what I should know already myself. Which higher tier mirror should I use to rsync CentOS from (including DVDs) to public mirror I maintain? I use probably outdated source to rsync from. Namely, here is my rsync line (in longer cron job): rsync -aqH --exclude .~tmp~/ --exclude .~tmp~ --delete\ msync-dvd.centos.org::CentOS-incdvd /data/mirror/centos - and I'm getting the following error: @ERROR: Unknown module 'CentOS-incdvd' I also tried what CentOS public mirror wiki suggests, and get similar error: rsync -aqH --exclude .~tmp~/ --exclude .~tmp~ --delete\ us-msync.centos.org::CentOS /data/mirror/centos @ERROR: Unknown module 'CentOS' Independent on this error I also have a bit strange answer in DNS resolution of msync-dvd.centos.org: # host msync-dvd.centos.org msync-dvd.centos.org has address 209.44.106.213 Host msync-dvd.centos.org not found: 2(SERVFAIL) I would appreciate any help or pointers. Thanks a lot in advance for all your answers! 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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BIND (named) as secondary and .jnl files
by Walter H. 28 Aug '16

28 Aug '16

Hello, I have two running BINDs in my LAN, one on my router box and one as VM; both are caching DNS servers, and a few zones are on both, on the box as master and on the VM as slave, but how can I cleanup/flush the growing .jnl files; rndc freeze rndc thaw doesn't work as these are not master ... Thanks, Walter

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Kickstart issue with UEFi
by Phil Manuel 28 Aug '16

28 Aug '16

Hi, I have a test system that booted fine using "Legacy Bios” mode and using the following Kickstart snippet configured the disks correctly:- # Clear the Master Boot Record zerombr # Partition clearing information clearpart --all --initlabel # Disk partitioning information part raid.01 --fstype="raid" --ondisk=sda --size=500 part raid.02 --fstype="raid" --grow --ondisk=sda --size=1 part raid.03 --fstype="raid" --ondisk=sdb --size=500 part raid.04 --fstype="raid" --grow --ondisk=sdb --size=1 raid /boot --device=0 --fstype="xfs" --level=RAID1 raid.01 raid.03 raid pv.01 --device=1 --level=RAID1 raid.02 raid.04 For UEFi I changed it to the following:- # Clear the Master Boot Record zerombr # Partition clearing information clearpart --all --initlabel # Disk partitioning information part raid.01 --fstype="raid" --ondisk=sda --size=500 part raid.02 --fstype="raid" --grow --ondisk=sda --size=1 part raid.03 --fstype="raid" --ondisk=sdb --size=500 part raid.04 --fstype="raid" --grow --ondisk=sdb --size=1 raid /boot --device=0 --fstype="xfs" --level=RAID1 raid.01 raid.03 part /boot/efi —fstype=“efi” --grow --maxsize=200 --size=20 raid pv.01 --device=1 --level=RAID1 raid.02 raid.04 The install fails under UEFi due to the fact the partitions are not cleared, and it doesn’t have any space to continue. Is there an extra step I need to do to remove the original partitions before the new layout will work ? Thanks

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CentOS 7 : keyboard shortcut for mouse gesture?
by Nicolas Kovacs 28 Aug '16

28 Aug '16

Hi, I have a CentOS 7 (GNOME) desktop installed as a VirtualBox guest on my Slackware64 14.1 workstation, to fiddle with it. Guest Additions are installed and configured OK, and 3D acceleration is working too. In its default configuration, the GNOME desktop under CentOS shows an "exposé" (I don't know how you call this), a list of all open windows, when you move the mouse cursor to the upper left corner of the screen. When no window is open, you just see the sidebar with the application launchers, and on the right side you see the empty virtual desktops. Is there a keyboard shortcut for this mouse gesture? I'm asking because on my dual-monitor workstation, the CentOS guest is displayed full-screen on my right monitor, and the mouse gesture seems to be ineffective. Thanks, Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Web : http://www.microlinux.fr Mail : info(a)microlinux.fr Tél. : 04 66 63 10 32

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Samba DC NT4 Style is Gone. When AD-DC will enable for default into Centos/RedHat Samba4 packages?
by Dario Lesca 27 Aug '16

27 Aug '16

This recent Microsoft's Patch https://lists.samba.org/archive/samba/2016-August/202197.html disable password change for all server Domain Controller NT4 Style, Samba 3 and 4 included. Then is urgent to enable, into Samba 4 Centos package by default support to AD-DC mode, or release another renamed packages with AD-DC support enable. For now, I must download the samba.src rpm, modify the spec file > sed \ > -e 's/%global with_mitkrb5 1/%global with_mitkrb5 0/' \ > -e 's/%global with_dc 0/%global with_dc 1/' \ > ~/rpmbuild/SPECS/samba.spec then rebuild the package after all update. My question is: There is some hope that in the short this flags are enable by default? Many thanks for your reply -- Dario Lesca (inviato dal mio Linux Fedora 24 Workstation)

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Discuss August 2016