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NFS not exporting filesystem ACLs
by Gregory Machin 24 Jul '13

24 Jul '13

Hi. I have a test system in an lab I have copied over the /etc/sysconfig/nfs and /etc/exports from productions all the same services are running. But in the test environment the client mounts the nfs exports but the file system ACLs are not visible , what have I missed ? I have stopped the firewall on the server and that didn't help. Filesystem acls are enabled in fstab for the file system with the exports on it. We are using nfs v3 and it's configured on the server and in the mounts on the client. Thanks Greg

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Re: [CentOS] What on Centos is wiping out my eth0 IP address every 5minutes?
by Jason Pyeron 23 Jul '13

23 Jul '13

> -----Original Message----- > From: Rock > Sent: Tuesday, July 23, 2013 17:46 > > QUESTION: > Why does my Centos 6.4 laptop keep wiping out my eth0 IP address? Googling https://www.google.com/search?q=rhel+6+network+configuration&oq=rhel+6+netw… https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux… ml/Deployment_Guide/ch-Network_Interfaces.html > > SUMMARY: > a) I set the IP address of eth0 > b) Everything works fine for 2 to 5 minutes > c) Then, that eth0 IP address is (somehow?) wiped out I frustratingly > repeat that abc process (over and over and over again) What is the contents of /etc/sysconfig/network-scripts/ifcfg-eth0 ? > > BACKGROUND: > My home network has been working perfectly and there is no problem > with my home network, nor my wlan0 WiFi access from my Centos laptop > to that home broadband network. > > Inside the house, I never use the wired (eth0) NIC; but, I'm trying to > set up a wired/wireless connection outside the house and that is where > I'm running into this problem where Centos (automatically?) constantly > and repeatedly wipes out the IP address I set on eth0. > > I can easily (constantly) change the IP address of the eth0 NIC back > to what I want it to be; but that IP address only stays set for about > 2 to 5 minutes; and then it wipes itself out (again & again). > > Why? How do I stop this? > (All I want is for eth0 to *stay* at the IP address I set it to!) > > To give you more contextual detail, here's a typical sequence. > > SIMPLE BASELINE: > Wireless NIC (wlan0) is turned off using a hardware switch on the > outside of the laptop (so that only one NIC is in play). > > STARTING POINT: (eth0 has no IP address) $ ifconfig eth0 => eth0 Link > encap:Ethernet HWaddr A0:BE:C1:D8:E5:F1 > => inet6 addr: fe80::f2de:f1ff:fe38:8591/64 Scope:Link > => UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > => RX packets:3139 errors:0 dropped:0 overruns:0 frame:0 > => TX packets:3230 errors:0 dropped:0 overruns:0 carrier:0 > => collisions:0 txqueuelen:1000 > => RX bytes:2403080 (2.2 MiB) TX bytes:547895 (535.0 KiB) > => Interrupt:20 Memory:f2600000-f2620000 > > I EASILY CAN SET THE IP ADDRESS of eth0: > $ sudo ifconfig eth0 192.168.1.100 > $ ifconfig eth0 > => eth0 Link encap:Ethernet HWaddr A0:BE:C1:D8:E5:F1 > => inet addr:192.168.1.100 Bcast:192.168.1.255 > Mask:255.255.255.0 > => inet6 addr: fe80::f2de:f1ff:fe38:8591/64 Scope:Link > => UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > => etc. > > At this point, I can now connect a wire from the RJ45 port of the > laptop, to the device (which happens to be a radio set to > 192.168.1.20): > > $ ping 192.168.1.20 > => PING 192.168.1.20 (192.168.1.20) 56(84) bytes of data. > => 64 bytes from 192.168.1.20: icmp_seq=1 ttl=64 time=1.38 ms => 64 > bytes from 192.168.1.20: icmp_seq=2 ttl=64 time=0.339 ms => 64 bytes > from 192.168.1.20: icmp_seq=3 ttl=64 > time=0.255 ms ^C => --- 192.168.1.20 ping statistics --- => 3 packets > transmitted, 3 received, 0% packet loss, time 2954ms => rtt > min/avg/max/mdev = 0.255/0.660/1.388/0.516 ms > > I can even easily connect via port 80 (using Firefox on the > laptop) to this device, e.g., $ firefox http://192.168.1.20 > > In fact, time and time (and time) again, everything works just fine, > for about 2 to 5 minutes, until, invariably, I lose all connectivity! > > What seems to happen is that CentOS wipes out my IP address that I had > set for eth0. So, I lose all connectivity. > > $ ifconfig eth0 > => eth0 Link encap:Ethernet HWaddr A0:BE:C1:D8:E5:F1 > => inet6 addr: fe80::f2de:f1ff:fe38:8591/64 Scope:Link > => UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > > I can repeat the process, and everything works again, for about 2 to > 5 minutes. Then I lose my eth0 IP address again. > > WHAT I WANT: > When I set eth0 to an IP address, I want eth0 to *stay* at that IP > address! > > My question: > Q: Why does setting an eth0 IP address only last about 5 minutes on > Centos? > What am I doing wrong? > What can I do to *keep* the IP address on eth0 that I set for eth0? > > > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos > -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- - - - Jason Pyeron PD Inc. http://www.pdinc.us - - Principal Consultant 10 West 24th Street #100 - - +1 (443) 269-1555 x333 Baltimore, Maryland 21218 - - - -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message is copyright PD Inc, subject to license 20080407P00.

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How often is kernel "touching" swap partition?
by Martin Šťastný 23 Jul '13

23 Jul '13

Hello, I am going to buy new laptop with two drives, one SSD and one HDD and I want to place swap partition on HDD which will be most time unused and therefore spinned down. Problem is, that I don't know, if or how often is kernel touching swap space even if there is lot of free memory and thus spinning HDD up. Thank you in advance

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SELinux Question
by Ken Smith 23 Jul '13

23 Jul '13

Hi Guys, My google foo is failing me this afternoon. Just configuring a new C6 install. I know there are SELinux alerts happening, eg: I know I need to enable named to write to the local .jnl file as part of dynamic DNS, but sealert -b is not listing any alerts. I can see raw audit messages. Is there some daemon I have forgotten to start or install? Thanks Ken -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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CentOS-announce Digest, Vol 101, Issue 15
by centos-announce-request＠centos.org 23 Jul '13

23 Jul '13

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-2013:1098 CentOS 6 system-config-date FASTTRACK Update (Johnny Hughes) 2. CEEA-2013:X005 Xen4CentOS e1000e Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Mon, 22 Jul 2013 14:46:41 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2013:1098 CentOS 6 system-config-date FASTTRACK Update To: centos-announce(a)centos.org Message-ID: <20130722144641.GA54049(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2013:1098 Upstream details at : https://rhn.redhat.com/errata/RHBA-2013-1098.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 6e5ad619ff0414a256f5cb76c9789f258a374622166abbe26423134a5464cfcd system-config-date-1.9.60-2.el6.centos.noarch.rpm x86_64: 6e5ad619ff0414a256f5cb76c9789f258a374622166abbe26423134a5464cfcd system-config-date-1.9.60-2.el6.centos.noarch.rpm Source: 3512ffe60fcbeb6aa4d66c27390e199a0b7ac513e9668e5d0c4d2d532e6452d1 system-config-date-1.9.60-2.el6.centos.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Mon, 22 Jul 2013 10:57:06 -0500 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEEA-2013:X005 Xen4CentOS e1000e Update To: CentOS-Announce <centos-announce(a)centos.org> Message-ID: <51ED5652.3060709(a)centos.org> Content-Type: text/plain; charset="iso-8859-1" CentOS Errata and Enhancement Advisory 2013:X005 (Xen4CentOS) The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) ----------------------------- X86_64 ----------------------------- e1000e-2.4.14-3.4.53.1.el6.centos.alt.x86_64.rpm: e135714af07c2cfccda09de474529be7a2d508ed0bc5fcd477efb9954d5fb07a ----------------------------- Source: ----------------------------- e1000e-2.4.14-3.4.53.1.el6.centos.alt.src.rpm: cd73e9955e406745b3b1ec19880295b779995092e87ba85669cf7af6f46b4e91 ================================================================== Corrected the following CentOS Bugs in this Kernel: http://bugs.centos.org/view.php?id=6562 ================================================================== e1000e Changelog info from the SPEC file: * Sun Jul 21 2013 Akemi Yagi toracat(a)centos.org - 2.4.14-3.4.53.1.el5.centos.alt - Added Makefile patch to enable mock build. * Thu Jul 18 2013 Johnny Hughes johnny(a)centos.org - 2.4.14-3.4.53.el6.centos.alt - initial build for the Xen4CentOS project - CentOS bug 6562 ================================================================== Note: This package installs a new e1000e driver that adds hardware detection for the e1000e kernel driver. It only works for the 3.4.x Xen4CentOS Kernel and must be upgraded for every new kernel. We only recommned using this if the standard kernel driver from the 3.4.x Xen4CentOS Kernel is not working for you. -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos at irc.freenode.net

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How do I debug why Centos is asking for fonts to be installed?
by Rock 23 Jul '13

23 Jul '13

Quite a few times a day, both the latest Pan & Firefox available in standard CentOS repositories elicit what (now) appears to be a CentOS request to install fonts, e.g.: http://i39.tinypic.com/2i7qm2p.png This latest message says: Pan newsreader wants to install fonts - Thai - Cherokee At first I had thought it was Pan and Firefox causing these messages, but I was just told it's actually CentOS which is making these requests. Hence, I ask: Q: How do I debug why these requests are being made? And, more importantly: Q: How do I prevent these messages from popping up?

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CentOS 6.4 doesn't work with SAMSUNG MP0402H USB harddisk, but CentOS 5.6 does
by Jiang Wen Dong 22 Jul '13

22 Jul '13

I want to make a live USB from live CD. CentOS 6.4 live CD doesn't work. Can not find root when initrd0 booting. It appears initrd0 can not find the USB harddisk - SAMSUNG MP0402H. But CentOS 5.6 live CD works fine. What can I do? Thanks. ________________________________ ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? This e-mail and its attachments contain confidential information from TD Tech Ltd., which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it!

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HPN-SSH performance optimization?
by Ljubomir Ljubojevic 22 Jul '13

22 Jul '13

Hi. I wonder what is a current position on HPN-SSH patch for OpenSSH is? I have seen a progress was made, so I was wondering if that patch is safe enough and if anyone is building it? Maybe separate package to accept connections to special port for local network (without NFS/Samba)? It is supposed to provide up to 20x more speed over ssh. Homepage is here http://www.psc.edu/index.php/hpn-ssh Also, I heard about some additions to Openssh so that it can transport larger files without encryption? Was it added? -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe StarOS, Mikrotik and CentOS/RHEL/Linux consultant

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What does this error mean?
by Gilbert Sebenste 22 Jul '13

22 Jul '13

Hello everyone, It took a few reboots after installing the latest kernel (.14) to come back up. After it did, I saw this: WARNING: Kernel Errors Present nForce2_smbus 0000:00:0a.1: Error probing SMB1. Bad video card? my Nvidia has been working fine. No on-screen problems/issues noted. Gilbert ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** Staff Meteorologist, Northern Illinois University **** E-mail: sebenste(a)weather.admin.niu.edu *** web: http://weather.admin.niu.edu ** Twitter: http://www.twitter.com/NIU_Weather ** Facebook: http://www.facebook.com/niu.weather * *******************************************************************************

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Question about Red Hat beta
by Joe Keller 22 Jul '13

22 Jul '13

Does CentOS get an early version of a beta release from Red Hat or not? I assume select hardware vendors get early access but I didn't know who else. Thanks, Joe

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