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34758 discussions

Shorewall and upgrade from 6.3 to 6.4
by Kahlil Hodgson 14 Mar '13

14 Mar '13

Just got burnt by this one this morning. If you are upgrading from 6.3 to 6.4 and you use shorewall, you will want to run restorecon -Rv /sbin before rebooting. Original solution from: > http://www.mail-archive.com/shorewall-users@lists.sourceforge.net/msg14885.… Cheers, kal -- Kahlil (Kal) Hodgson GPG: C9A02289 Head of Technology (m) +61 (0) 4 2573 0382 DealMax Pty Ltd (w) +61 (0) 3 9008 5281 Suite 1415 401 Docklands Drive Docklands VIC 3008 Australia "All parts should go together without forcing. You must remember that the parts you are reassembling were disassembled by you. Therefore, if you can't get them together again, there must be a reason. By all means, do not use a hammer." -- IBM maintenance manual, 1925

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Kernel panic after update to 6.4
by Emmett Culley 14 Mar '13

14 Mar '13

After successfully updating three CentOS 6.3 VM guests to 6.4 I decided to update the host as well. And it failed to boot. Kernel panic - Not syncing: Attempted to kill init! Pid: 1, comm: init not tainted: 2.6.32-358.2.1.el6.x86_64 #1 Plus a call trace I couldn't see Luckily I was able to boot from the previous kernel and get my system back up. After booting to the previous kernel I removed the "358" kernel and all of it's related module and devel packages using yum remove, then did yum update again, as I could only guess that the install somehow didn't complete. But it still fails to boot. Now the kernel panic has happened to a 6.3 VM guest I upgraded, now it isn't just the host hardware that is a problem. Has anyone else seen this? Any ideas where to start troubleshooting? Emmett

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Re: [CentOS] Postfix (Roundcube client) sends mail, but not able to receive
by Austin Einter 14 Mar '13

14 Mar '13

Looks I did not start amavisd service. Thats why probably connection to 127.0.0.1:10024 is being refused. I tried starting amavisd service. Gets bunch of erropr as below. *[root@ip-173-201-189-43 postfix]# service amavisd restart Shutting down amavisd: fetch_modules: error loading required module MIME/Head.pm: Can't locate Mail/Header.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5) at /usr/share/perl5/MIME/Head.pm line 120. BEGIN failed--compilation aborted at /usr/share/perl5/MIME/Head.pm line 120. Compilation failed in require at /usr/sbin/amavisd line 197. fetch_modules: error loading required module MIME/Entity.pm: Can't locate Mail/Internet.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5) at /usr/share/perl5/MIME/Entity.pm line 229. BEGIN failed--compilation aborted at /usr/share/perl5/MIME/Entity.pm line 229. Compilation failed in require at /usr/sbin/amavisd line 197. fetch_modules: error loading required module MIME/Parser.pm: Attempt to reload MIME/Head.pm aborted. Compilation failed in require at /usr/share/perl5/MIME/Parser.pm line 143. BEGIN failed--compilation aborted at /usr/share/perl5/MIME/Parser.pm line 143. Compilation failed in require at /usr/sbin/amavisd line 197. ERROR: MISSING REQUIRED BASIC MODULES: MIME::Head MIME::Entity MIME::Parser BEGIN failed--compilation aborted at /usr/sbin/amavisd line 237. [FAILED] Starting amavisd: fetch_modules: error loading required module MIME/Head.pm: Can't locate Mail/Header.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5) at /usr/share/perl5/MIME/Head.pm line 120. BEGIN failed--compilation aborted at /usr/share/perl5/MIME/Head.pm line 120. Compilation failed in require at /usr/sbin/amavisd line 197. fetch_modules: error loading required module MIME/Entity.pm: Can't locate Mail/Internet.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5) at /usr/share/perl5/MIME/Entity.pm line 229. BEGIN failed--compilation aborted at /usr/share/perl5/MIME/Entity.pm line 229. Compilation failed in require at /usr/sbin/amavisd line 197. fetch_modules: error loading required module MIME/Parser.pm: Attempt to reload MIME/Head.pm aborted. Compilation failed in require at /usr/share/perl5/MIME/Parser.pm line 143. BEGIN failed--compilation aborted at /usr/share/perl5/MIME/Parser.pm line 143. Compilation failed in require at /usr/sbin/amavisd line 197. ERROR: MISSING REQUIRED BASIC MODULES: MIME::Head MIME::Entity MIME::ParserBEGIN failed--compilation aborted at /usr/sbin/amavisd line 237. [FAILED] * On Thu, Mar 14, 2013 at 8:11 AM, Austin Einter <austin.einter(a)gmail.com>wrote: > DearAll > > I was able to resolve error with your kind help, specially Robert's > pointers helped a lot. > > > *Mar 13 16:35:36 ip-173-201-189-43 dovecot: dict: Error: mysql: Connect > failed to localhost (postfix): Access denied for user 'postfix'@'localhost' > (using password: YES) - waiting for 1 seconds before retry > Mar 13 16:35:36 ip-173-201-189-43 dovecot: dict: Error: dict sql lookup > failed: Not connected to database > > * > By modifying password in file dovecot-dict-quota.conf. > > Then when I send mail, roundcube says message sent, but message is not > recvd at gmail. > > From mail log, I see > > Mar 13 19:32:52 ip-173-201-189-43 postfix/qmgr[3170]: 9CCE838A0C4A: from=< > bhanu(a)netcloudjobs.com>, size=593, nrcpt=1 (queue active) > Mar 13 19:32:52 ip-173-201-189-43 postfix/smtp[3196]: connect to > 127.0.0.1[127.0.0.1]:10024: Connection refused > Mar 13 19:32:52 ip-173-201-189-43 dovecot: imap-login: Login: user=< > bhanu(a)netcloudjobs.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, > mpid=3199, secured > Mar 13 19:32:52 ip-173-201-189-43 postfix/smtp[3196]: 9CCE838A0C4A: to=< > austin.einter(a)gmail.com>, relay=none, delay=0.08, delays=0.08/0.01/0/0, > dsn=4.4.1, status=deferred (connect to 127.0.0.1[127.0.0.1]:10024: > Connection refused) > > Looks connection to 127.0.0.1:10024 is being refused. > > Any idea, what needs to be done here... > > -Austin > > > > > > > > > On Thu, Mar 14, 2013 at 6:32 AM, Robert Moskowitz <rgm(a)htt-consult.com>wrote: > >> >> On 03/13/2013 08:31 PM, Austin Einter wrote: >> >> Dear Robert >> It looks dovecot could not connect to mysql. The error log in maillog >> says >> >> >> Have you done the testing as shown in: >> http://wiki.dovecot.org/TestInstallation >> ? >> >> One of the tests is to log in as a user, and that should require dovecot >> to access mysql. >> >> >> >> *Mar 13 16:35:36 ip-173-201-189-43 dovecot: imap-login: Login: user=< >> bhanu(a)netcloudjobs.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, >> mpid=3069, secured >> Mar 13 16:35:36 ip-173-201-189-43 dovecot: dict: Error: mysql: Connect >> failed to localhost (postfix): Access denied for user 'postfix'@'localhost' >> (using password: YES) - waiting for 1 seconds before retry >> Mar 13 16:35:36 ip-173-201-189-43 dovecot: dict: Error: dict sql lookup >> failed: Not connected to database >> * >> >> >> At this point, you should join the dovecot list and get help there. but... >> >> >> >> I checked dovecot-mysql config file. The name of db, user and password >> are correct. Using those user/password I can connect to mysql. >> >> >> Where you careful that the 2 queries are a single long line? The howto, >> does warn about this, but your editor may have wrapped these lines. >> >> >> Not sure why dovecot is not able to connect... , can there be any >> permission issue. >> >> >> Not likely. But as Harald indicates, I am just a little more experienced >> than you. There are specific product lists that you really should join. >> >> >> >

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ntfs-3g
by Al Sparks 14 Mar '13

14 Mar '13

I'm looking for ntfs-3g. I'm getting lots of hits through google, but I'm suspicious of some of the sites. The one rpm I downloaded from rpmfind wouldn't install because of some missing library. Where's a good place to get the tarball? === Al

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vncserver doesn't start. Why?
by nishi.plala 14 Mar '13

14 Mar '13

I have been using tigervnc-server with CentOS6.2 since last summer. I worked well. Two days ago, I installed CentOS6.2 with Software development environment in a new PC and after "yum -y install update", tried to insall tigervnc-server using "yum -y install tgervnc-server" Installation itself has finished without any touble but vncserver didnot start with the message like belows [centos@matlablnx66 ~]$ vncserver -geometry 1600x956 :1 xauth: (stdin):1: bad display name "matlablnx66:1" in "add" command WARNING: The first attempt to start Xvnc failed, possibly because the font catalog is not properly configured. Attempting to determine an appropriate font path for this system and restart Xvnc using that font path ... Could not start Xvnc. /usr/bin/Xvnc: symbol lookup error: /usr/bin/Xvnc: undefined symbol: pixman_composite_trapezoids /usr/bin/Xvnc: symbol lookup error: /usr/bin/Xvnc: undefined symbol: pixman_composite_trapezoids [centos@matlablnx66 ~]$

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atheros wifi on my oqo2
by Robert Moskowitz 14 Mar '13

14 Mar '13

I have a few oqo2 units that I use for testing, normally using the dongle for ethernet connection. Well supposedly they have atheros wifi. in dmseg I see: ath5k 0000:03:04.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 ath5k 0000:03:04.0: registered as 'phy0' ath5k phy0: Couldn't identify radio revision. ath5k 0000:03:04.0: PCI INT A disabled I press magic <fnc-?> per http://www.expansys.com/ft.aspx?k=119902 but NetworkManager is not adding wifi as a networking device. There is no file under /etc/sysconfig/network-scripts/ifc-* either. How can I get the wifi working?

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Postfix (Roundcube client) sends mail, but not able to receive
by Austin Einter 14 Mar '13

14 Mar '13

Dear All Recently I just setup postfix, dovecot, roundcube etc in a dedicated server. >From roundcuble, I am able to send mail to my gmail account. But from my gmail account, when sent mail to my mail id, that I setup recently, I do not see that email in roundcuble inbox. Neither that mail bounced back in gmail. Not sure, how do I debug this. Kindly let me know how should I proceed to fix this issue. Thanks Austin

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[OT/HW] hardware raid -- comment/experience with 3Ware
by Arun Khan 13 Mar '13

13 Mar '13

Greetings, I am looking for a hardware raid card that supports up to 4 SATA II hard disks with hot swap (compatible raid cage) I have short listed two LSI/3Ware cards: 1. 9750-4i 2. 9650SE-4LPML Both appear to be well supported in Linux. I would appreciate your personal experience with the CLI tools provided by LSI. Can they be configured to send email for disk failures or SMART errors? Is there a Web interface for monitoring? Any preference between 1 and 2 above. Thanks for your time and suggestions. -- Arun Khan

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UEFI Bootable ISO HowTo
by Skeeve Stevens 13 Mar '13

13 Mar '13

Hey all, We've developed our own microserver platform sitting on top of CentOS 5.4. We deploy them in many locations and normally use netbooks for this purpose. This has worked fine for years, except most netbooks have started to disappear (in Australia). The lowest price hardware I found the other day was the ASUS F201E (X201E in USA). It is the right size at the right price... but it runs on UEFI Bios. This has caused me to burn hours trying to figure what is going on until someone pointed me to: CentOS-6.3-x86_64-minimal-EFI.iso - which worked fine (except no LAN drivers for this device are present - damnit). As we roll our own ISO... I want to re-build our platform on top of CentOS 6.4 - or something current, but while the OS isn't an issue... the EFI aspect is... and I can't seem to find out how to roll and ISO with EFI support. Does anyone know of a doc out there which might be able to assist me with getting something going? ...Skeeve *Skeeve Stevens - *eintellego Networks Pty Ltd skeeve(a)eintellegonetworks.com ; www.eintellegonetworks.com Phone: 1300 239 038; Cell +61 (0)414 753 383 ; skype://skeeve facebook.com/eintellegonetworks ; <http://twitter.com/networkceoau> linkedin.com/in/skeeve twitter.com/networkceoau ; blog: www.network-ceo.net The Experts Who The Experts Call Juniper - Cisco - Cloud

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replacing joe
by Michael Schumacher 13 Mar '13

13 Mar '13

Morning everybody, I am still using good old joe editor on my CentOS machines although it is no longer included in the CentOS repositories. Is there any comparable "wordstar" compatible editor that is part of the standard distribution? And no, I don't want to use Emacs. :-) best regards --- Michael Schumacher

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