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by elizabeth Benedict 08 Oct '14

08 Oct '14

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CentOS 7 remove items on screen
by Jerry Geis 08 Oct '14

08 Oct '14

How can I remove the four items on screen? Applications, Places home trash from the command line? I'd prefer to remove the top panel and bottom panel all together if possible, but they can stay - I just don't want anything showing on the screen. searched all around for kiosk mode gnome3 etc.. not finding anything good for CentOS7. Was able to do this in CentOS 6 can't believe they took out functionality. Any way to "not" have those menu items and not have icons on the main screen? Thanks jerry

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CentOS 7 kernel console under KVM?
by Chris Adams 08 Oct '14

08 Oct '14

Is there a way to get GRUB2 and the kernel to run a "serial" console under KVM? I'm running a Fedora 20 desktop, with libvirt-managed VMs. When I run a CentOS 6 VM, I can set both the boot loader and kernel up to use ttyS0 and get a console compatible with "virsh console". When I try the same with a CentOS 7 VM, it doesn't work. If I set it to ttyS0, I just don't get anything. I read that I should use hvc0 instead (no idea how to set the boot loader to use that); when I set that on the kernel command line, the kernel crashes during boot with: kernel tried to execute NX-protected page - exploit attempt? (uid: 0) BUG: unable to handle kernel paging request at ffffffff81a4cfec IP: [<ffffffff81a4cfec>] vty_init+0x174/0x174 PGD 18d3067 PUD 18d4063 PMD 3d9e1063 PTE 8000000001a4c163 If I don't do either, I can add a getty on hvc0 with "systemctl enable serial-getty(a)hvc0.service", but that doesn't get me the boot loader or kernel messages. -- Chris Adams <linux(a)cmadams.net>

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CentOS 7 and nfs
by m.roth＠5-cent.us 08 Oct '14

08 Oct '14

First time firing up NFS on a CentOS 7 box. Under 5 or 6, service nfs start started *everything* (rpc, etc). Based on trying that, and doing some googling, is it the case that it does *not* do everything in 7, and I do have to start the pieces manually? mark

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Re: [CentOS] CentOS 7 docs, tutorials, etc...
by Bowie Bailey 08 Oct '14

08 Oct '14

On 10/8/2014 3:16 PM, Dave Stevens wrote: > Quoting Bowie Bailey <Bowie_Bailey(a)BUC.com>: > >> On 10/8/2014 12:50 PM, Valeri Galtsev wrote: >>> >>> I would say, CentOS 6 is the best of Linuxes suitable for server (IMHO). >>> However, I for one decided to move my servers away from Linux (as from >>> "Unix-like" Linux gradually becomes "Windows-like" during last 5 years or >>> so). Since some time ago I do not upgrade Linux systems on servers I >>> maintain. Instead, when the time comes, I just migrate server from Linux >>> to FreeBSD, which is much more suitable platform for server than Linux. >>> Version 7 of RedHat Enterprise or CentOS is much worse than version 6 to >>> build server on. Again, this is just my humble opinion. If I absolutely >>> have to build server on today's latest Linux, I will choose Debian, which >>> at least doesn't have systemd yet. But it will have it in next release... >> What changes have you seen that affect using CentOS as a server? >> Sure, the GUI has changed over the years to be more like Windows, >> but most of my servers don't even have a GUI installed. I have >> servers running CentOS 4, 5, 6, and 7. The only differences I can >> think of between 4 and 7 that affect server administration are >> selinux and systemd. Selinux can be easily disabled if you don't >> want to deal with it. I don't like systemd at the moment, but >> that's at least partially due to only having worked with it for a >> couple of weeks so far. The more I use it, the more I get used to >> it. So far, it seems easy enough to use once you figure out the new >> commands and file locations. > And the RAID setup is MUCH easier and more rational, really nice to use. Interesting. I built my CentOS 7 server with a raid 1 mirror. I found the raid setup in the installer to be confusing and very non-intuitive. I don't remember having any problems with it in previous versions. -- Bowie

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patching bash 2.05b for Shellshock
by Boris Epstein 08 Oct '14

08 Oct '14

Hello all, Amongst a number of modern CentOS machines we have this one RHEL 3 machine (don't ask me why:) and on it we have bash 2.05b. I was trying to compile a version of bash for it that would be Shellshock-proofed. To do that, I downloaded a copy of the code from the GNU along with all the 13 patches, applied the patches, compiled the code and installed the executable. All vulnerabilities appear to be fixed with the exception of CVE-2014-7187. Does anybody know why this may be? Thanks. Boris.

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centos 7, docker, NFS and uid = -2
by Mauricio Tavares 08 Oct '14

08 Oct '14

I created a centos 7 docker container in which I want to mount a NFS share in. Said share is owned by user virtual with uid 1200. So I do some exporting (docker container is in 172.17.0.0/16): spindizzy> cat /etc/exports /export 10.0.0.0/24(ro,fsid=0,no_subtree_check,sync) 172.17.0.0/16(ro,fsid=0,no_subtree_check,sync) [...] /export/mail 172.17.0.0/16(rw,root_squash,no_subtree_check,sync) spindizzy> and then some mounting: bash-4.2# id virtual uid=1200(virtual) gid=1200(virtual) groups=1200(virtual) bash-4.2# nfsstat -m bash-4.2# mount.nfs4 -v -o proto=tcp fileserver.in.kushana.com:mail /var/spool/vmail mount.nfs4: timeout set for Wed Oct 8 03:11:43 2014 mount.nfs4: trying text-based options 'proto=tcp,addr=10.0.0.18,clientaddr=172.17.0.29' bash-4.2# nfsstat -m /var/spool/vmail from fileserver.in.kushana.com://mail Flags: rw,relatime,vers=4.0,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=172.17.0.29,local_lock=none,addr=10.0.0.18 bash-4.2# ls -l /var/spool/ total 12 drwxr-xr-x 2 root root 4096 Jun 10 01:11 lpd drwxrwxr-x 2 root mail 4096 Oct 8 02:15 mail drwxr-xr-x 2 4294967294 4294967294 4096 Oct 3 17:34 vmail bash-4.2# And am getting the famous share being mounted as nobody issue. In the client (docker container), I went in /etc/idmapd.conf and set the Domain to be the domain where the NFS server is at (in.kushana.com) Now, how do I restart idmapd? It is a systemd service (/usr/lib/systemd/system/rpcidmapd.service, which uses /etc/sysconfig/nfs).

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VNCServer Startup Config
by Igal ＠ getRailo.org 08 Oct '14

08 Oct '14

hi all, I've inherited a server with CentOS 6.4 the VNC Server starts up with the OS and its screen resolution is set to 800x600. I found that I can set the resolution by specifying the -geometry switch, but I can't find where the call to start the vncserver is set in order to change it. I know that it's not in /etc/xinetd.d (the only file there is rsync) here are the contents of ~/.vnc/xstartup #!/bin/sh [ -r /etc/sysconfig/i18n ] && . /etc/sysconfig/i18n export LANG export SYSFONT vncconfig -iconic & unset SESSION_MANAGER unset DBUS_SESSION_BUS_ADDRESS OS=`uname -s` if [ $OS = 'Linux' ]; then case "$WINDOWMANAGER" in *gnome*) if [ -e /etc/SuSE-release ]; then PATH=$PATH:/opt/gnome/bin export PATH fi ;; esac fi if [ -x /etc/X11/xinit/xinitrc ]; then exec /etc/X11/xinit/xinitrc fi if [ -f /etc/X11/xinit/xinitrc ]; then exec sh /etc/X11/xinit/xinitrc fi [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources xsetroot -solid grey xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" & twm & any thoughts? TIA -- Igal Sapir Railo Core Developer http://getRailo.org/

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CentOS-announce Digest, Vol 116, Issue 5
by centos-announce-request＠centos.org 08 Oct '14

08 Oct '14

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-2014:1362 CentOS 6 at BugFix Update (Johnny Hughes) 2. CEBA-2014:1363 CentOS 7 at BugFix Update (Johnny Hughes) 3. CEBA-2014:1368 CentOS 5 at BugFix Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Tue, 7 Oct 2014 12:57:33 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CEBA-2014:1362 CentOS 6 at BugFix Update Message-ID: <20141007125733.GA12414(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2014:1362 Upstream details at : https://rhn.redhat.com/errata/RHBA-2014-1362.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 69ae958a1041c898d7f3ae4127f214ec542db0449626d420b911df9f30193e4f at-3.1.10-44.el6_5.2.i686.rpm x86_64: 7a409d370df858e752e940f8ce430717322e9e10f9d5e11afdd88b597b0f58bd at-3.1.10-44.el6_5.2.x86_64.rpm Source: fa069ec81e4a29c45e19b0f3398b2e65632e90c138da3cf7d313a3b0102f5476 at-3.1.10-44.el6_5.2.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Tue, 7 Oct 2014 13:01:56 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CEBA-2014:1363 CentOS 7 at BugFix Update Message-ID: <20141007130156.GA12674(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2014:1363 Upstream details at : https://rhn.redhat.com/errata/RHBA-2014-1363.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 9dd4644ca7404cf3dddad613977b02ee4bca3f003dffda38bd97573b496effd3 at-3.1.13-17.el7_0.1.x86_64.rpm 711dac18746220c0ba7c8636587734a8686e4ff1703219ef0e82df01fadf4ac2 at-sysvinit-3.1.13-17.el7_0.1.x86_64.rpm Source: c25678308970744e2bd12c5429ae263d2ee6af1b3ea158f6a3d9c65e74cb2d92 at-3.1.13-17.el7_0.1.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Wed, 8 Oct 2014 11:34:49 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CEBA-2014:1368 CentOS 5 at BugFix Update Message-ID: <20141008113449.GA16020(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2014:1368 Upstream details at : https://rhn.redhat.com/errata/RHBA-2014-1368.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 380ebf4be76ba9eded6f619366711e01537d705dacca24f7c5592a985bb8d6c2 at-3.1.8-84.el5_11.1.i386.rpm x86_64: ba03ad178a7e969747230ed905e4cdb79c4e67202ffbadc4a21fde7438747f98 at-3.1.8-84.el5_11.1.x86_64.rpm Source: fa016225f2927a0b81fe40dccc7511de0ad20b12f3a23a5a579f3da3d0c0101f at-3.1.8-84.el5_11.1.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 116, Issue 5 ***********************************************

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umount problem
by Fred Smith 08 Oct '14

08 Oct '14

I've got a usb HD mounted, and it has been mounted since the weekend, and has been kept busy during that period. now I"m done with it an want to umount it, but neither umount nor the on-screen icon (when right-clicked) will let me do it: it is /dev/sdd1, mounted as /media/seagateusb. when root tries to umount it we get this: # umount /media/seagateusb umount: /media/seagateusb: device is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) lsof | grep sdd1 gives this: $ lsof | grep sdd1 jbd2/sdd1 26358 root cwd DIR 253,1 4096 2 / jbd2/sdd1 26358 root rtd DIR 253,1 4096 2 / jbd2/sdd1 26358 root txt unknown /proc/26358/exe lsof | grep /media/seagateusb yields no output. I know, I could reboot, but I'd just as soon not. Anybody know what that jbd2/sdd1 stuff is that lsof shows me, or how to umount it other than a reboot? thanks! -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- Show me your ways, O LORD, teach me your paths; Guide me in your truth and teach me, for you are God my Savior, And my hope is in you all day long. -------------------------- Psalm 25:4-5 (NIV) --------------------------------

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