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ifenslave vs. /etc/sysconfig/network-scripts
by Nicholas Geovanis 21 Jan '16

21 Jan '16

How does the ifenslave command relate to "normal" network slave configuration in /etc/sysconfig/network-scripts? Does config-file-based setup use ifenslave or is it more complicated than that? Thanks....Nick

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Failed to start polkit.service: Connection timed out
by Henry McLaughlin 21 Jan '16

21 Jan '16

This is related to another earlier post regarding "realm discover" I want to set the timezone to Melbourne/Australia which failed with: [root@sssd-testing ~]# timedatectl set-timezone Australia/Melbourne Error getting authority: Error initializing authority: Error calling StartServiceByName for org.freedesktop.PolicyKit1: Timeout was reached (g-io-error-quark, 24) Failed to set time zone: Connection timed out I found the following which suggests the error is caused by the polkit service failing to start: http://unix.stackexchange.com/questions/249575/systemctl-keeps-timing-out-o… When I reinstall and try to start the polkit service in accordance with the post above I receive the following: [root@sssd-testing ~]# systemctl start polkit Error getting authority: Error initializing authority: Error calling StartServiceByName for org.freedesktop.PolicyKit1: Timeout was reached (g-io-error-quark, 24) Failed to start polkit.service: Connection timed out When I call the service directly in accordance with the post above I receive: [root@sssd-testing ~]# /usr/lib/polkit-1/polkitd Successfully changed to user polkitd Error getting system bus: Could not connect: Permission denied ** (polkitd:922): WARNING **: Error getting system bus: Could not connect: Permission denied 10:44:10.564: Loading rules from directory /etc/polkit-1/rules.d 10:44:10.564: Loading rules from directory /usr/share/polkit-1/rules.d 10:44:10.564: Finished loading, compiling and executing 2 rules Entering main event loop 10:44:10.564: Lost the name org.freedesktop.PolicyKit1 - exiting Shutting down Exiting with code 0 The post below identifies a similar issue with the polkit service not starting however I have confirmed dbus is running and the polkitd user does exist. https://bbs.archlinux.org/viewtopic.php?id=161291 [root@sssd-testing ~]# ps ax | grep dbus 221 ? Ss 0:00 /bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation 929 pts/1 S+ 0:00 grep --color=auto dbus [root@sssd-testing ~]# getent passwd polkitd polkitd:x:997:995:User for polkitd:/:/sbin/nologin

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realm discover
by Henry McLaughlin 21 Jan '16

21 Jan '16

I am new to CentOS and trying to setup a Samba file server however when discovering domains I receive an authorisation error: [root@sssd-testing ~]# id uid=0(root) gid=0(root) groups=0(root) [root@sssd-testing ~]# realm discover realm: Couldn't discover realms: Not authorized to perform this action

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Monitor Dummy Device
by Joey 21 Jan '16

21 Jan '16

Hello List, i want to use a Dual-Screen Solution without connected a second Monitor. Its a solution available, that a physical monitor/Device is simulated? I want to use it on KDE. Thank you. Joey

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Re: [CentOS] HDD badblocks
by James B. Byrne 20 Jan '16

20 Jan '16

On Tue, January 19, 2016 18:36, John R Pierce wrote: > On 1/19/2016 3:29 PM, J Martin Rushton wrote: >> I suspect that the gold layer on edge connectors 30-odd years ago >> was >> a lot thicker than on modern cards. We are talking contacts on 0.1" >> spacing not some modern 1/10 of a knat's whisker. (Off topic) I >> also >> remember seeing engineers determine which memory chip was at fault >> and >> replacing the chip using a soldering iron. Try that on a DIMM! > > indeed, I pretty much quit doing component level electronics when > everything went to surface mount. > > Kids these days! I remember taking the vacuum tubes to the testing centre in the corner drug-store to see which ones need replacing. Apologies to the four Yorkshiremen. -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail 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 131, Issue 6
by centos-announce-request＠centos.org 20 Jan '16

20 Jan '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. CEEA-2016:0044 CentOS 6 igb Enhancement Update (Johnny Hughes) 2. CESA-2016:0045 Important CentOS 5 kernel Security Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Fri, 15 Jan 2016 15:23:17 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CEEA-2016:0044 CentOS 6 igb Enhancement Update Message-ID: <20160115152317.GA4136(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Enhancement Advisory 2016:0044 Upstream details at : https://rhn.redhat.com/errata/RHEA-2016-0044.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: cbaabacef73bb8a664314c419c0a357f813a1a6203bf8045c71e2f4b9212e2e2 kmod-igb-5.2.15_k-1.el6_7.i686.rpm x86_64: 866a0c15dda8db6193cfaa36c8ce617893fbee54d80278adb9524e271f792118 kmod-igb-5.2.15_k-1.el6_7.x86_64.rpm Source: dff34134cf087bf972cd380ad1837a12957e3ea85aee644446757eb3c9f5d47b igb-5.2.15_k-1.el6_7.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 2 Date: Tue, 19 Jan 2016 20:05:12 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2016:0045 Important CentOS 5 kernel Security Update Message-ID: <20160119200512.GA32304(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2016:0045 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-0045.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 45d48fb8351d1e77ca7826f2025b8c28e42d244a37cccd7e40c945f193a4f929 kernel-2.6.18-408.el5.i686.rpm 2ab4facb340d3a1fb1fc81ed12f58a8b5c9103cd9f2133b4082be8d6c553df81 kernel-debug-2.6.18-408.el5.i686.rpm a42578c0604c1d86e976a104dee01a03c2f5b92e9cb713ead3c1616cb79e67b3 kernel-debug-devel-2.6.18-408.el5.i686.rpm 6c1406f7375ec4617d3d53e7e6ad0add39fe9e646675b4e1247c91cb5f7066e5 kernel-devel-2.6.18-408.el5.i686.rpm df8c6370f9b74dba17f99d608daa1259f4271f15f1bae6091197d11952a83b3c kernel-doc-2.6.18-408.el5.noarch.rpm b2ff283f0d821a062ec1414a86756154f6a9df3a3c4c0563d29b0b27655b492d kernel-headers-2.6.18-408.el5.i386.rpm 82d38fccf6d3b7e21fcfa6b3807014b280696e53aae6b95a870ab33342f86f8c kernel-PAE-2.6.18-408.el5.i686.rpm 758913ae27c4da4b4f5a98f851e5ae55ac9c427476f1e893662fe9a7b571412d kernel-PAE-devel-2.6.18-408.el5.i686.rpm 5e758fe8925b0b79ee4d5386a1cfd760ea06abe80d6ee6ec43963b01e87af878 kernel-xen-2.6.18-408.el5.i686.rpm 6648864e010dcaeddb600d11635f1385806cad22fc2916e8706be1a136f0b728 kernel-xen-devel-2.6.18-408.el5.i686.rpm x86_64: 38c47b61044a33476ab42ba2cfdbafc57f86ab29846352edb7017725e1b190bc kernel-2.6.18-408.el5.x86_64.rpm 02fad3d60b68a09db26aa6299b51e69bb3f3e60f6b2695b7b267c93862ad59a7 kernel-debug-2.6.18-408.el5.x86_64.rpm 62502d190c1650834f58df4b73532afc18743381c376987d862b954dfaefa2eb kernel-debug-devel-2.6.18-408.el5.x86_64.rpm 2013207c15f229da615a620443ff96a1f4e200dced92f3e7ee070bcf0fe2ef8b kernel-devel-2.6.18-408.el5.x86_64.rpm df8c6370f9b74dba17f99d608daa1259f4271f15f1bae6091197d11952a83b3c kernel-doc-2.6.18-408.el5.noarch.rpm cbe09cac6bc78fedc1f79a12ebffe1663ec5c8d76640c7a4d7cfb5b4a93754c0 kernel-headers-2.6.18-408.el5.x86_64.rpm c8965c4e5f822bcca0bb4afeee41512731b1823b403112d71445ed869fa3efb4 kernel-xen-2.6.18-408.el5.x86_64.rpm a2da81341a223d25427ce21be8caf689771c0f7900b61fd736796f3402261764 kernel-xen-devel-2.6.18-408.el5.x86_64.rpm Source: 90958bbb66a6776d51e6b9e5d920d18c989fd169b5308e47ff1d6384272846b9 kernel-2.6.18-408.el5.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: JohnnyCentOS ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org https://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 131, Issue 6 ***********************************************

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LVM thin volumes fstrim operation not supported
by Tim Robinson 20 Jan '16

20 Jan '16

Hi All I'm trying to setup my LVM thin pool to support discards so that the pool can reclaim space even if the underlying device doesn't support trim. It is my understanding that all thin pools should support trim even if the underlying device doesn't. (please correct me if I'm wrong here) I have one centos server that does support trim and everything is working correctly but any new servers and thin pools throw the error below. # fstrim -v /mnt/data00 fstrim: /mnt/data00: the discard operation is not supported I can't find any differences in the LVM configuration between the two servers, they both have the lv discards set to passthough. Can anyone tell me if I'm missing something when creating the thin pool that would allow me to perform the fstrim. I'm using xfs on all of the lvs. Thanks, Tim

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Setting up a userID for an SSH tunnel
by Robert Moskowitz 19 Jan '16

19 Jan '16

I need/desire to set up a userID for an SSH tunnel, but not allow said user to have a login to the server. For the user to set up the tunnel with: ssh -p 1234 -L 8080:192.168.1.4:80 george(a)gateway.foo.com Where george would use a password instead of a stored SSH key, could george be created with: useradd -s /sbin/nologin -c "George" george passwd george thanks

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Supervisory
by Hadi Motamedi 19 Jan '16

19 Jan '16

Dear All I have a centos server with super user password access. There are a number of users on the same net accessing it via telnet with their dedicated id/pwd . For the supervision purposes, I need to know which user is issuing what command on the server . In other words , monitoring their activities . Can you please let me know how it can be done on the centos? Thank you in advance

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Skype 4.3.0.37 on Centos 7
by melkor.kp 19 Jan '16

19 Jan '16

Hi, Does anybody tried to install Skype on Centos 7.2? It is giving a segmentation fault when you start it. I installed using the nux repository and the fedora rpm. Cheers, Roberto Nebot -- It's a dangerous business, Frodo, going out your door. You step onto the road, and if you don't keep your feet, there's no knowing where you might be swept off to. Bilbo Baggins. http://vanishedintheshell.apsila.org <http://vanishedintheshell.blogspot.com>

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