Discuss April 2015

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168 participants
185 discussions

vncserver on CentOS 7.1
by Jerry Geis 21 Apr '15

21 Apr '15

I have gone through all the "new" setup for VNC server on 7.1 (goodness - that certainly is not easier than the previous way) Anyway - I have my port on 5901 and that is working. However - when I VNC into a box I get a different screen - I want to be on the same screen as the user that is on the console. how do I do that? Thanks, Jerry

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wireshark 1.12.4
by Steve Clark 21 Apr '15

21 Apr '15

Hi, Does anyone know where I could find wireshark-1.12.4 el6 rpm? Thanks, -- Stephen Clark

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CentOS5 + lighttpd (EPEL) - fix Chrome security warning?
by Bart Schaefer 21 Apr '15

21 Apr '15

Apologies if I should ask this elsewhere, google search is not helping. I've got a CentOS5 server with lighttpd installed from EPEL, configured for https only (no connections on ports other than 443). I have the latest security updates for openssl, etc. However, when connecting to the server with recent Chrome from Windows or Android, I get the "Your connection is not private" dialog with "NET::ERR_CERT_VALIDITY_TOO_LONG". Is this just a configuration issue (in which case, what do I change?) or do I need to further upgrade one of lighttpd or openssl? Thanks for any feedback.

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mediacheck on kickstart
by Jerry Geis 20 Apr '15

20 Apr '15

I am using a kickstart centos 1503 file. For some reason I am getting a mediacheck even though I do not have mediacheck in my kickstart file. Any ideas why? Something change on that? Jerry

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Laptop for CentOS
by Steve Clark 20 Apr '15

20 Apr '15

Hello, Has anyone used the Dell M3800 (ubuntu) laptop to run CentOS 6.x? If so how did it work out? Also does anyone have a fairly new laptop they are running CentOS 6.x on, that they are happy about? I am in the market for a new laptop and it must run CentOS 6.x. Thanks, -- Stephen Clark

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CentOS6.6 installation failure
by lhecking＠users.sourceforge.net 20 Apr '15

20 Apr '15

I have been installing CentOS for years using PXE, kickstart and NFS, but the procedure fails with CentOS 6.6 for some reason. A PXE-initiated, manual install goes through all the setup steps, and once rpm installation has started, it dies after a few packages: anaconda 13.21.229 exception report Traceback (most recent call first): File "/usr/lib/anaconda/yuminstall.py", line 1006, in _handleFailure os.unlink(package.localPkg()) File "/usr/lib/anaconda/yuminstall.py", line 196, in callback self.ayum._handleFailure(po, trynumber) OSError: [Errno 30] Read-only file system: '/mnt/source/Packages/mailcap-2.1.31-2.el6.noarch.rpm' When a kickstart file is used instead, the installation dies at a different package. I have tried providing the OS installation files from different machines, checked package integrity etc., but cannot figure out what is happening here. The anaconda traceback file also has 12:19:59,354 WARNING : Failed to get file:///mnt/source/Packages/mailcap-2.1.31- 2.el6.noarch.rpm from mirror 1/1, or downloaded file is corrupt 12:19:59,354 WARNING : package download failure, retrying automatically That said, installing 6.4 off the same NFS server works just fine.

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bash script fails conditional test
by Tim Dunphy 20 Apr '15

20 Apr '15

Hey all, I wrote a very basic script to determine if cassandra db is running. I'm setting a variable called 'pid' to the output of a ps | grep like to grab the pid of the cassandra process. #!/bin/bash pid=$(ps -ef | grep cassandra | grep -v grep | grep -i -v -e grep -e screen -e s3fs|awk '{print $2}') if [[ -e $pid ]] then echo "Cassandra is running with pid: $pid" else echo "Cassandra is DOWN!!!" fi But for some reason the script doesn't realize that the pid variable has been set, and fails the condition. It then reports that Cassnadra is DOWN!!!". [root@web1:~] #sh -x ./bin/check-cass.sh ++ ps -ef ++ grep -v grep ++ grep -i -v -e grep -e screen -e s3fs ++ awk '{print $2}' ++ grep cassandra + pid=26979 + [[ -e 26979 ]] + echo 'Cassandra is DOWN!!!' Cassandra is DOWN!!! Can anybody tell me where I'm going wrong here? Because from what I can see, clearly the pid variable is being set so the script should be reporting that cassandra is up! I'd appreciate any advice you may have. Thanks, Tim -- GPG me!! gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B

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Preferred partition type for raid 5
by Mark LaPierre 20 Apr '15

20 Apr '15

Hey All, I my research I came across a note that a specific partition type was preferable when creating a raid 5 array. I installed my HDs and used mdadm to assemble them into a raid 5 array. I then partitioned the array using gdisk. The default partition type is "8300 Linux filesystem" for the two partitions that I created. The article I read said that a specific partition type was preferred to avoid issues if the array was to be moved to another machine. Now I can't find where I read that. What is the preferred partition type that I should use for my partitions? -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ****

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Re: [CentOS] ClamAV reports a trojan
by James B. Byrne 19 Apr '15

19 Apr '15

On Sat, April 18, 2015 11:16, Jake Shipton wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 16/04/15 16:01, James B. Byrne wrote: >> This morning I discovered this in my clamav report from one of our >> imap servers: >> >> /usr/share/nmap/scripts/irc-unrealircd-backdoor.nse: >> Unix.Trojan.MSShellcode-21 FOUND >> >> >> I have looked at this script and it appears to be part of the nmap >> distribution. It actually tests for irc backdoors. IRC is not >> used here and its ports are blocked by default both at the gateway >> and on all internal hosts. >> >> However, I none-the-less copied that file, removed namp, >> re-installed nmap from base, and diffed the file of the same name >> installed with nmap against the copy. They are identical. >> >> The question is: Do I have a problem here or a false positive? >> >> I am not sure why nmap is on that host but evidently I had some >> reason last October to use it from that server. In any case I am >> going to remove it for good, or at least until the reason I had it >> there reoccurs or is recalled to mind. >> > > Hi, > > I believe this is definitely a false positive. > > Our mail server (CentOS 6.6) is reporting the very same "Trojan" on > the very same file. I've already done our investigation and came to > the conclusion it is a false positive based on a verification of files > from RPMDB and also our intrusion detection system has not detected > any changed files in /usr/share/ since before and after said "trojan" > appeared. > > Top that with two people seeing the same thing at the same time in two > completely different machines/companies chances are high its a false > positive. > > Hope this helps set your mind at ease :-). > > Kind Regards, > Jake Shipton (JakeMS) > Twitter: @CrazyLinuxNerd > GPG Key: 0xE3C31D8F > GPG Fingerprint: 7515 CC63 19BD 06F9 400A DE8A 1D0B A5CF E3C3 1D8F > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.22 (GNU/Linux) > > iQEcBAEBAgAGBQJVMnVaAAoJEB0Lpc/jwx2P7s4H/2V++W499w2fAZPM8kjnKi9b > EBS0vl/oYAOVgzc3lo4y0CbY9GQtQ3258tISCeMGGOR/OjPYl3BqINsS1Qf0FGSw > FzNHWrlgas/bZO/HbTAzWbtxknRKIJiiYfBHqLL6s/r9WpOMsBvA2eVpkXsEZZoz > AWC0CFcrVsh7+Agqk46GyIsDn8ZpT+IymwMp+gKiqBv8e4uG5WjE8YRGBybscJgk > DAPZ9ZaSJpJNFkJ0tpAAgNkPO96lFv6l43nnm/IyTfKtd/1rWJ9ejb0ZjtZnP6Dr > xWdNyTjK39euHiVBP3pZ6ex8VKthph6b9FeferoQaGFxGvixk7epIihPbeEYqbg= > =lowP > -----END PGP SIGNATURE----- > > Thank you. We run aide on that box and it did not report any recent changes to that file. RPM and yum history corroborated the install date as being last October. We have concluded this is a false positive following a recent ClamAV update. We have none-the-less removed nmap from that host. -- *** E-Mail is NOT a SECURE channel *** 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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Re: [CentOS] yum install failiure - CentOS-7 - Base
by Richard 19 Apr '15

19 Apr '15

------------ Original Message ------------ > Date: Sunday, April 19, 2015 18:44:43 +0000 > From: Sarogahtyp <sarogahtyp(a)web.de> > To: centos(a)centos.org > Subject: [CentOS] yum install failiure - CentOS-7 - Base > > I have a running CentOS 6.5 64-bit system running and i like to > have a CentOS 7 chrooted system inside. > Ive done that chroot environment as described in > http://www.jefftk.com/p/32-bit-chroot-on-centos > > Now my problem ist that yum is not working as i suggested: > > bash-4.2# yum install sudo > Geladene Plugins: fastestmirror > http://mirror.centos.org/centos/7/os/i386/repodata/repomd.xml: > [Errno 14] HTTP Error 404 - Not Found > Anderer Spiegelserver wird versucht. > Yum is working fine, and gave the correct response "HTTP Error 404 - Not Found". If you look with a browser you'll see that there's no i386 directory under .../7/os/. I haven't been following this closely, but I don't believe that there was an RH 32-bit release of 7. A Centos group was looking into building one, but I'm not certain of its status.

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Discuss April 2015