Discuss July 2012

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166 participants
156 discussions

Re: [CentOS] ssh port forwarding
by We Are Here 13 Jul '12

13 Jul '12

At 19:15 12/07/2012, you wrote: Hi Doug, >Thanks for the feedback Tim. Glad I could help. >Using your string, I can now telnet to port 22222 on localhost (hostA) and >I get the mysql connection string (from hostB), but it is not able to make >a mysql connection (using mysql -u user -p -h localhost --port=22222 from >hostA), with a test user that I set up to allow connections from anywhere. >The error that I am getting is: >ERROR 2002 (HY000): Can't connect to local MySQL server through socket >'/var/lib/mysql/mysql.sock' (2) > >I did test and the mysql test user that I created is able to connect from >hostB. Because the mysql connection is via an ssh tunnel, you need to ensure on the MySQL server hostB that is allows the mysql user access from 127.0.0.1 on hostB as that is effectively where the MySQL server on hostB sees the connection coming from. >Also, when I do this, it still opens up an ssh session, logging me into the >remote machine, thus making it so I can't use this terminal. Yes you need to run it is a screen session if you want it permanently connected. >The eventual goal is to do this in a script, that will open the connection, >use it for the duration of the script, and then close it when the script >finishes, but it looks like that won't work, since it is logging me into >the remote machine. I guess I could get around that by always leaving the >screen session going with the connection, but I would prefer only creating >the connection when I need it. > >Any ideas how to do this without leaving the connection open all the time? I have used an expect script to do this in the past. Which allows you to remotely log in to a server. Downside is you need to store the password in plain text in the expect script. So make sure only root can read the script. Or setup a lower privilege user to use sudo and do it that way. regards Tim Tim D'Cruz

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CentOS-announce Digest, Vol 89, Issue 5
by centos-announce-request＠centos.org 13 Jul '12

13 Jul '12

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-2012:1075 CentOS 6 libvirt-java Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Fri, 13 Jul 2012 13:35:27 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2012:1075 CentOS 6 libvirt-java Update To: centos-announce(a)centos.org Message-ID: <20120713133527.GA26599(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2012:1075 Upstream details at : https://rhn.redhat.com/errata/RHBA-2012-1075.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 8c9a2025b8092b45e3141c12e7bb814b5869a7303f71b6525288a7cd3425c9bc libvirt-java-0.4.7-1.el6_3.1.noarch.rpm b302c30be2d44057a3c6f2dfa715101afa9b54883ee757307ec776688aa2f4ee libvirt-java-devel-0.4.7-1.el6_3.1.noarch.rpm 0c596c1602954e23e562686f0aa611e0a0161d06f226fab86a148428fbd60309 libvirt-java-javadoc-0.4.7-1.el6_3.1.noarch.rpm x86_64: c3f14ea20fcca9aa71e6f2562fbedab292ab51da640b1b175fd46b3ca990422e libvirt-java-0.4.7-1.el6_3.1.noarch.rpm b80c5737183bb724850f993b8da92179087b5956450893883d7ff0b994a50095 libvirt-java-devel-0.4.7-1.el6_3.1.noarch.rpm 5f63bf79bb1a70f7edf325d396849c91beb5531ec97e1bd33e732861c082bff2 libvirt-java-javadoc-0.4.7-1.el6_3.1.noarch.rpm Source: 2cbc4426abb05cae390c1d7a08ee0aa78618b80c07205911b2a3347408a0efea libvirt-java-0.4.7-1.el6_3.1.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 89, Issue 5 **********************************************

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version bind to 6.3 release and back port option
by fakessh 13 Jul '12

13 Jul '12

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hello guys they are the new features of bind version from back port doors superior to the current version of centos 6.3 inline signing it is present what are the new functionality provides for this update - -- http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xC2626742 gpg --keyserver pgp.mit.edu --recv-key C2626742 http://urlshort.eu fakessh @ http://gplus.to/sshfake http://gplus.to/sshswilting http://gplus.to/john.swilting https://lists.fakessh.eu/mailman/ This list is moderated by me, but all applications will be accepted provided they receive a note of presentation -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAlAAIAIACgkQNgqL0sJiZ0KMGwCgmfD5tsTx1KkP5u5SLZD2vKSE kl4AoNCi8OTd2Is1YODxjYetc62OYnQR =O5on -----END PGP SIGNATURE-----

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Curiosity Question
by Phil Savoie 13 Jul '12

13 Jul '12

Hi All, During updates I see a number preceding the package to be updated as indicated in the below example: 1:perl-Module-Build-0.3500-119.el6_1.1.x86_64 ^ Does anyone know what does this indicates? Thank you, Phil -- Carpe Aptenodytes! (Seize the Penguins!)

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php-pear missing from 5.8 (i386) metadata?
by Leonard den Ottolander 12 Jul '12

12 Jul '12

Hi, # yum install php-pear <snip> No package php-pear available. Nothing to do This is on CentOS 5.8 (i386). The package is available for both archs on the two mirrors I checked. I also tried a # yum clean headers # yum clean metadata # yum clean dbcache to no avail. Am I missing something or is it the metadata? Regards, Leonard. -- mount -t life -o ro /dev/dna /genetic/research

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Help Installing Codeblocks on Centos 6.4
by Patrick Kongawi 12 Jul '12

12 Jul '12

To whom this may concern I have read the read me file provided by the OS. I followed the directions but I can not install Codeblocks from source code. The terminal tells me that the files are not in my home folder. Whe I check I see the folders. I don't know what to do. Thank you for your time. Sincerley Patrick Kongawi

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Re: [CentOS] ssh port forwarding
by Ski Dawg 12 Jul '12

12 Jul '12

On Thu, Jul 12, 2012 at 12:20 PM, Reindl Harald <h.reindl(a)thelounge.net>wrote: > > > Am 12.07.2012 20:15, schrieb Ski Dawg: > > Using your string, I can now telnet to port 22222 on localhost (hostA) > and > > I get the mysql connection string (from hostB), but it is not able to > make > > a mysql connection (using mysql -u user -p -h localhost --port=22222 from > > hostA), with a test user that I set up to allow connections from > anywhere. > > The error that I am getting is: > > ERROR 2002 (HY000): Can't connect to local MySQL server through socket > > '/var/lib/mysql/mysql.sock' (2) > > learn mysql-basics! > > localhost is ALWAYS unix-socket > the error message is really clear! > > use 127.0.0.1 if you want to use TCP which is what happens > with port-forwarding! > > Thanks. This worked. I have not ever run across this issue before, so I didn't know that using localhost tied mysql to only a socket connection, but now I do.

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Re: [CentOS] ssh port forwarding
by We Are Here 12 Jul '12

12 Jul '12

At 18:20 12/07/2012, you wrote: Hi Doug, >I am having a problem with setting up port forwarding from one of our local >CentOS machines to an AWS EC2 instance. We are wanting to make mysql >connections over an ssh tunnel. > >In this case, lets say that hostA is our local machine, and hostB is the >Amazon EC2 instance. I have tried several different variations (that I have >found from google searching), including: >from hostA: ssh -L 22222:hostB:3306 user@hostB >from hostA: ssh -L 22222:localhost:3306 user@hostB >from hostA: ssh -L 22222:hostB:3306 user@localhost On HostA run the following within a screen session; ssh user@hostB -L 22222:127.0.0.1:3306 Hope this helps. regards Tim Tim D'Cruz

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ssh port forwarding
by Ski Dawg 12 Jul '12

12 Jul '12

Hello Everyone, I am having a problem with setting up port forwarding from one of our local CentOS machines to an AWS EC2 instance. We are wanting to make mysql connections over an ssh tunnel. In this case, lets say that hostA is our local machine, and hostB is the Amazon EC2 instance. I have tried several different variations (that I have found from google searching), including: from hostA: ssh -L 22222:hostB:3306 user@hostB from hostA: ssh -L 22222:localhost:3306 user@hostB from hostA: ssh -L 22222:hostB:3306 user@localhost No matter which variation I have tried, in every case, it will actually create an ssh connection to the hostB, and log me into hostB, giving me its prompt. If I try the port (22222) for the localhost (hostA) in another terminal window, it doesn't allow the connection. netstat also doesn't show port 22222 to be opened on the local machine (hostA). I have turned on AllowTcpForwarding on both the remote machine and the local machine. I have also made sure that port 22222 is opened on both machine firewalls (including the EC2 security group). What am I doing incorrectly or missing? -- Doug Registered Linux User #285548 (http://counter.li.org) ---------------------------------------- Never trust a computer you can't throw out a window. -- Steve Wozniak

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CentOS6.2: installation at specific kernel level
by Cal Sawyer 12 Jul '12

12 Jul '12

Hi, all I have a number of machines that are out of sync with one another by virtue of having done a yum update after a base 6.2 install at different times (all were previous CentOS 5.3) Consequently, systems are a mix of 2.6.32-220.7.1, 2.6.32-220.13.1 or 2.6.32-220.17.1. So 2 questions: - Is it possible to perform a yum update (or another other kind of update), specifying installation of, say, kernel 2.6.32-220.17.1 along with the packages that were relevant at the time when 2.6.32-220.17.1 was current? - Is it possible to capture and save for future installations the current kernel rev and associated packages as exist in the repos today and install as a "frozen-in-time" distribution? thanks! - c sawyer

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Discuss July 2012