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Postfix IPv6 defaults
by Luigi Rosa 10 Oct '13

10 Oct '13

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Postfix mail list [1] Postfix RPM has IPv6 enabled by default. Postfix source code distribution has IPv6 DISABLED by default for security reasons. It could be better to disable IPv6 because IPv6 autoconf could break security. [1] http://marc.info/?l=postfix-users&m=138136473706643&w=2 Ciao, luigi - -- / +--[Luigi Rosa]-- \ Fashion is a form of ugliness so intolerable that we have to alter it every six months. --Oscar Wilde -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlJWKAQACgkQ3kWu7Tfl6ZRphwCgwdaFhBVqUFTs4kiGMJmjoUIB h+AAoItRsWX3r3NQnITrFjQhnfYjy9s3 =JSHo -----END PGP SIGNATURE-----

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Re: [CentOS] - problem gcc with yum
by Paolo De Michele 10 Oct '13

10 Oct '13

this is the ls command in my /etc/yum.repos.d/ directory: CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Media.repo CentOS-Vault.repo epel.repo epel-testing.repo which repository I have to enable? 2013/10/10 Reindl Harald <h.reindl(a)thelounge.net> > > > Am 10.10.2013 15:09, schrieb Paolo De Michele: > > if I try: > > > > # yum install kernel-headers > > Loaded plugins: fastestmirror, security > > Loading mirror speeds from cached hostfile > > * base: ftp.hosteurope.de > > * epel: mirror.de.leaseweb.net > > * extras: ftp.hosteurope.de > > * updates: ftp.hosteurope.de > > Setting up Install Process > > No package kernel-headers available. > > Error: Nothing to do > > > > why? > > because you most likely excluded it somewhere > in /etc/yum.repos.d/ or /etc/yum.conf > > >

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CentOS-announce Digest, Vol 104, Issue 4
by centos-announce-request＠centos.org 10 Oct '13

10 Oct '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-2013:1414 CentOS 6 java-1.6.0-openjdk Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Wed, 9 Oct 2013 14:35:07 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2013:1414 CentOS 6 java-1.6.0-openjdk Update To: centos-announce(a)centos.org Message-ID: <20131009143507.GA44933(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2013:1414 Upstream details at : https://rhn.redhat.com/errata/RHBA-2013-1414.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 9e86668ba149885595c847812703c961b9c4de81234fe7e285549c308ba49228 java-1.6.0-openjdk-1.6.0.0-1.65.1.11.13.el6_4.i686.rpm 7819a7d30aad1ecb1c217ae5cbfb67700ac6e66da59609edb43e844dd64ec75c java-1.6.0-openjdk-demo-1.6.0.0-1.65.1.11.13.el6_4.i686.rpm d50c4e6c90cc7043c85d3c6db8396dd96896cb5f4531e4cc1fe187be06a77aa7 java-1.6.0-openjdk-devel-1.6.0.0-1.65.1.11.13.el6_4.i686.rpm 67c82b64171263f5746ddfda88d432cfaa3f9adc8a76dc5421d25cd0049bae31 java-1.6.0-openjdk-javadoc-1.6.0.0-1.65.1.11.13.el6_4.i686.rpm db93817f71dacbed3b2eaf5beb37c3a591bc379af8e3cb12c886a41fff5f1895 java-1.6.0-openjdk-src-1.6.0.0-1.65.1.11.13.el6_4.i686.rpm x86_64: a7bcb88e695018304f8e30552a96c109797219e6c4cf1dfafa2cd48b8f1184d6 java-1.6.0-openjdk-1.6.0.0-1.65.1.11.13.el6_4.x86_64.rpm a40617965ad46be973d602409cddda9d550c494350e74855a1bc5087c87073ae java-1.6.0-openjdk-demo-1.6.0.0-1.65.1.11.13.el6_4.x86_64.rpm 6fb7091560cba773ca3dc1c4000ec2d6dbf53cc75fb5733f7545bdde5d4ff17c java-1.6.0-openjdk-devel-1.6.0.0-1.65.1.11.13.el6_4.x86_64.rpm 00483c1a09f34db915b12099a47353195ecd6bdb740cd1c59b75b7151c0e643b java-1.6.0-openjdk-javadoc-1.6.0.0-1.65.1.11.13.el6_4.x86_64.rpm e7d9f92e26105456532ed7c2c0502339435fc94fa6f68c864e5b5e8af011d7f4 java-1.6.0-openjdk-src-1.6.0.0-1.65.1.11.13.el6_4.x86_64.rpm Source: 19a67155fc8c65c8654eca5d70293c780d7bf5c27690fb1bfe23f4e7825135eb java-1.6.0-openjdk-1.6.0.0-1.65.1.11.13.el6_4.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #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 104, Issue 4 ***********************************************

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Wireless connection issue - athero 9300 pci wireless card
by Xianyi 10 Oct '13

10 Oct '13

Hi all, I am new to CentOS. I built myself a desktop with an additional PCI wireless card 'TP-LInk WPN3800', which I have checked needs an ath9k driver. * **04:00.0 Network controller: Atheros Communications Inc. AR9300 Wireless LAN adaptor* Following the wireless connection tutorial on CentOS wiki, I have both kernel-devel 2.6.6 and ath9k installed. Then I tried * $ modprobe ath9k *but nothing happened. Then I input *$ service NetworkManager start $ chkconfig NetworkManager on *to access the Network Manager and no wireless connection options appear. I do not think it is a big problem for you guys, but I am really a beginner. Please share me some solutions for that. Thank you!

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mdraid strange surprises...
by John Doe 10 Oct '13

10 Oct '13

Hey, I installed 2 new data servers with a big (12TB) RAID6 mdraid. I formated the whole arrays with bad blocks checks. One server is moderately used (nfs on one md), while the other not. One week later, after the raid-check from cron, I get on both servers a few block_mismatch... 1976162368 on the used one and a tiny bit less on the other... That seems a tiny little bit high... I do the whole repair+recheck and it is back to zero. For brand new arrays, I am not very happy about the way mdraid seems to function (with the manual/croned checks, repairs, checks, checks, repairs, checks...) I will have to see next week how high the mismatches reach... Since my desktop is a RAID1 mdraid on 2 disks, I decided to have a look for fun... Apart from some low count mismatches, I did not have many problems... Did the whole check+repair+check on 3 mds and had a look at mdstat... md0 : active raid1 sdb1[1] sda1[0] 200704 blocks [2/2] [UU] md1 : active raid1 sdb2[1] 2048192 blocks [2/1] [_U] md2 : active raid1 sdb3[1] sda3[0] 2048192 blocks [2/2] [UU] md3 : active raid1 sdb6[1] sda6[0] 6144704 blocks [2/2] [UU] md4 : active raid1 sdb8[1] sda8[0] 2048192 blocks [2/2] [UU] md5 : active raid1 sda7[0] 4096448 blocks [2/1] [U_] md6 : active raid1 sdb5[2](F) sda5[0] 131074176 blocks [2/1] [U_] md7 : active raid1 sdb9[1] sda9[0] 340722432 blocks [2/2] [UU] It seems like I have some healthy volumes, some "failed partitions", and even some "missing partitions"... on both disks... And mdraid seems not alarmed about it... 1. Is there something to activate to get some kind of mdraid warnings? In /var/log/messages I cannot find any alarming message. 2. How to recover? Reboot? Or should I just mdadm --add the missing ones and --remove then --add the failed ones? Thx, JD

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XFS quotas not working at all (seemingly)
by James A. Peltier 10 Oct '13

10 Oct '13

Hi All, I have a very strange problem that I'm unable to pinpoint at the moment. For some reason I am simply unable to get xfs_quotas to report correctly on a freshly installed, fully patched CentOS 6 box. I have specified all the same options as on another machine which *is* reporting quota LABEL=TEST /exports/TEST xfs inode64,nobarrier,delaylog,usrquota,grpquota 0 0 xfs_quota -xc 'limit -u bsoft=900m bhard=1g user' /exports/TEST however xfs_quota -xc 'report -hu' /exports/ reports back nothing pertaining to the user but if a do a quota user I get information back Disk quotas for user user (uid 67876): Filesystem blocks quota limit grace files quota limit grace /dev/mapper/DATA-TEST 0 921600 1048576 1 0 0 This is very strange and it's something new. Can anyone confirm similar findings on their machines before I consider reporting a bug? -- James A. Peltier Manager, IT Services - Research Computing Group Simon Fraser University - Burnaby Campus Phone : 778-782-6573 Fax : 778-782-3045 E-Mail : jpeltier(a)sfu.ca Website : http://www.sfu.ca/itservices “A successful person is one who can lay a solid foundation from the bricks others have thrown at them.” -David Brinkley via Luke Shaw

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Best configuration for encrypted software RAID 1?
by Dave Johansen 10 Oct '13

10 Oct '13

I'm setting up a computer with CentOS 6.4 and a mirrored software RAID. I would like it to be encrypted so I was wondering what the best configuration is. The only info I could find is http://lists.centos.org/pipermail/centos-docs/2008-October/001912.html but it appears to be a bit old and the info on the wiki ( http://wiki.centos.org/HowTos/EncryptTmpSwapHome ) doesn't seem to address RAIDs. My main question is will it be better to encrypt the RAID itself or the two partitions used by the RAID? Any other things I should be aware of? Thanks, Dave

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Sendmail not presenting AUTH option after EHLO
by Chris Boyd 09 Oct '13

09 Oct '13

Hello folks, I have a CentOS 6.4 installation running Sendmail, and after some serious hair tear stare and compare I'm a bit stumped. When I connect to the server either with telnet or SSL, sendmail is not presenting the AUTH capability after an EHLO. Everything looks like it should be working, but no amount of tweaking is getting the AUTH capability advertised (and it doesn't work if you just try it anyway). Here's the config bits from sendmail.mc-- define(`confAUTH_OPTIONS', `A p')dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl Note: Also tried define(`confAUTH_OPTIONS', `A')dnl define(`confAUTH_MECHANISMS', `LOGIN PLAIN')dnl TRUST_AUTH_MECH(`LOGIN PLAIN')dnl just to keep things simple. saslauthd is running, and configured--/etc/sysconfig/saslauthd SOCKETDIR=/var/run/saslauthd MECH=pam FLAGS= /etc/sasl2/Sendmail.conf contains-- pwcheck_method:saslauthd /etc/pam.d/smtp contains-- #%PAM-1.0 auth include password-auth account include password-auth But when I do "openssl s_client -starttls smtp -connect localhost:587" I don't get any AUTH capability-- ehlo localhost 250-pennzoil.gizmopartners.com Hello localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-DELIVERBY 250 HELP quit All the certs are built, and if I connect via telnet, the server does advertise STARTTLS. So anyone able to point out the obvious or not so obvious config mistakes?

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VNCserver not starting due to errors
by Gilbert Sebenste 09 Oct '13

09 Oct '13

Hello everyone, Following the directions I found here: http://wiki.centos.org/HowTos/VNC-Server I get to part 2.4, and when I start the vncservice, I get this error message: Starting VNC server: 1:blah Invalid null command. if: Expression Syntax. A VNC server is already running as :1 else: endif not found. [FAILED] If I stop it, and then restart it, I get the same error message. "blah" has been changed for security purposes on this email, but the real name is a valid user. I want to be on window "0", not 1. Any tips or suggestions would be greatly appreciated! Gilbert ******************************************************************************* Gilbert Sebenste (My opinions only!) *******************************************************************************

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CentOS 6.4 Installation on Dell R720
by Kaushal Shriyan 09 Oct '13

09 Oct '13

Hi, I am planning to install CentOS 6.4 on Dell R720 which has hardware raid card and 6 hard disk slots available. I have planned with the below set up :- *2 Hard disks configured in RAID 1 for installing OS * *4 Hard disks configured in RAID 10 for data drive.* Please suggest and recommend if the above approach is correct and let me know if i am missing anything which is crucial to set up a production server. This server will host MySQL DB server. Regards, Kaushal

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