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bind + chroot + webmin
by aurfalien 07 Jul '12

07 Jul '12

Hi all, I just read about some kind of bug regarding webmin not being able to work with bind if chroot is enabled. Webmin was working fine for me until I chose to update it, and then the bug showed (running Centos 6.2 BTW). So the fix was to disable chroot in the webmin bind module config, seems counter intuitive. Any one mind sharing some nuggets on this? I'm working with bind via cli no issue but this new crop of sys admins have probs with that and want pictures, ie gui so my guys are a little troubled. - aurf

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NIS expiration of passwords
by Fabien Archambault 06 Jul '12

06 Jul '12

Dear all, I have a NIS server which shares a database of users between some computers (nodes exactly) and I would like that, on the first login, the user changes its password. So, on the NIS server I have made: chage -d 0 USER Then: # cd /var/yp # make On the NIS server I have: chage -l USER Last password change : password must be changed Password expires : password must be changed Password inactive : password must be changed Account expires : never Minimum number of days between password change : 0 Maximum number of days between password change : 99999 Number of days of warning before password expires : 7 I would believe this information is shared from the server to the other computers but here users still can connect (via SSH). If I try to get the information on the user connected I have: # chage -l USER user 'USER' does not exist in /etc/passwd This looks normal as there is no user there but then I do not know how to enable the expiration information through NIS. Do someone has an idea? Thanks, Fabien

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leap second
by Bob Hoffman 06 Jul '12

06 Jul '12

--------------------- Kernel Begin ------------------------ 1 Time(s): Clock: inserting leap second 23:59:60 UTC ---------------------- Kernel End ------------------------- hee hee. gotta love it....

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conntrack
by Steve Campbell 06 Jul '12

06 Jul '12

Is conntrack and conntrackd still valid for Centos 6.2? I can't seem to find much on it any more. Is there something else to use? thanks steve campbell

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bind: root hints named.ca and named.root
by Michael McNulty 06 Jul '12

06 Jul '12

For 6.x I have both of these files in my /var/named directory, probably copied when upgraded. named.ca date inside the file is dated 2008 and named.root is from a few months ago. Am I correct in assuming that named.ca is old and that I should be using named.root in my named.conf files? Is it SOP to use the latest from ftp://ftp.internic.net/domain/named.root thx -- Mike

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update from 4.4 to 4.9
by Jerry Geis 05 Jul '12

05 Jul '12

I am trying to update i386/686 4.4 to 4.9 I found this: In /etc/yum.repos.d/CentOS-Base.repo, comment out the mirrorlist directives and replace with: baseurl=http://vault.centos.org/4.9/os/$basearch Which I did. My error is now: yum update Setting up Update Process Setting up repositories update 100% |=========================| 1.1 kB 00:00 base 100% |=========================| 1.1 kB 00:00 Reading repository metadata in from local files primary.xml.gz 100% |=========================| 611 kB 00:00 update : ################################################## 1599/1599 Added 1599 new packages, deleted 0 old in 9.17 seconds primary.xml.gz 100% |=========================| 611 kB 00:00 base : ################################################## 1599/1599 Added 1599 new packages, deleted 0 old in 9.14 seconds Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Downloading header for openssl-devel to pack into transaction set. *** glibc detected *** double free or corruption (out): 0x09697760 *** Aborted What next? Jerry

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Strange alterations to vim and related packages on KVM host
by James B. Byrne 04 Jul '12

04 Jul '12

OS CentOS-6.2 with updates to present. I use git on this host to manage configuration changes and to monitor package alterations. This is not meant to be a security check. It is simply a way for me to easily recover from fumble fingered configuration changes. Yesterday git status reported that the following files had changed since the previous commit: # modified: ../usr/bin/gdb # modified: ../usr/bin/gvim # modified: ../usr/bin/vim I therefore reinstalled these three packages using yum reinstall and committed the change to git. commit b87a8b2116ef22cc013fd5dc6f525d672d52570a Author: sysadmin.root.vhost01.hamilton <sysadmin.root.vhost01.hamilton@harte-lyn Date: Tue Jul 3 16:22:34 2012 -0400 Reinstalled gdb, vim and vim-X11 due to unexpected changes in executable files. This morning git reports the same three files have again changed. # On branch master # Changed but not updated: # (use "git add <file>..." to update what will be committed) # (use "git checkout -- <file>..." to discard changes in working directory) # # modified: ../etc/virsh.run # modified: .Xauthority # modified: .bash_history # modified: ../selinux/policy # modified: ../usr/bin/gdb # modified: ../usr/bin/gvim # modified: ../usr/bin/vim # # Untracked files: # (use "git add <file>..." to include in what will be committed) # # ../.readahead_collect When I check the differences git simply reports that the binary files are difference but, after I reinstalled them all yesterday I noted that the file modification times of the replaced files and their respective reinstalled files were the same but their file sizes were not. Given what I have committed to the git repository I am satisfied that these are the only system files that have changed. None of the files in /var/log show any entries relating to these files immediately prior to the reinstall yesterday. What entries do exist go back to when the software was first installed and none are more recent than several months ago. The git commit on this host previous to yesterday was the Kernel update on June 19. At that time the subject files were the same as when they were originally installed. This host does not accept any direct IP connections from IP addresses outside our internal server subnet (a.b.c.0/192). Access is blocked via IPTables at the gateway and again on the host itself. Some VM guests do allow public or otherwise less restricted access but the VM host itself does not. I am of course deeply suspicious of these circumstances but I cannot see how this could be the result of some outside agency. Therefore, I am at a loss to explain these changes. What I need to discover is what agency changed these files and why. In the meantime I have removed the gdb, vim-enhanced and vim-X11 packages from that host. Has anyone else run across this sort of behaviour? Has anyone any idea as to what is going on here? -- *** 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] Strange alterations to vim and related packages on KVM host
by James B. Byrne 04 Jul '12

04 Jul '12

On Wed, July 4, 2012 11:51, John Doe wrote: > From: fred smith <fredex(a)fcshome.stoneham.ma.us> > >> On Wed, Jul 04, 2012 at 07:53:09AM -0700, John Doe wrote: >>> >>> Did you rpm verify? >>> # rpm -qV vim-enhanced Yes >>> # rpm -qV gdb Yes >>> Did you diff the text files? The files other than those in /usr/bin I know the cause of their alteration. It is caused by my ssh accesses. >>> Did you "binary diff" the binaries? No >>> How many bytes difference? constant number? >> >> prelink??? It seems so: [root@vhost01 ~]# yum install gdb . . . [root@vhost01 ~]# ll /usr/bin/gdb -rwxr-xr-x. 1 root root 4453160 Dec 7 2011 /usr/bin/gdb [root@vhost01 ~]# mv /usr/bin/gdb /usr/bin/gdb.cln [root@vhost01 ~]# cp -p /usr/bin/gdb.cln /usr/bin/gdb [root@vhost01 ~]# ll /usr/bin/gdb* -rwxr-xr-x. 1 root root 4453160 Dec 7 2011 /usr/bin/gdb -rwxr-xr-x. 1 root root 1061 Dec 7 2011 /usr/bin/gdb-add-index -rwxr-xr-x. 1 root root 4453160 Dec 7 2011 /usr/bin/gdb.cln lrwxrwxrwx. 1 root root 3 Jul 4 14:16 /usr/bin/gdbtui -> gdb [root@vhost01 ~]# prelink -v /usr/bin/gdb Prelinking /usr/bin/gdb [root@vhost01 ~]# ll /usr/bin/gdb* -rwxr-xr-x. 1 root root 4468992 Dec 7 2011 /usr/bin/gdb -rwxr-xr-x. 1 root root 1061 Dec 7 2011 /usr/bin/gdb-add-index -rwxr-xr-x. 1 root root 4453160 Dec 7 2011 /usr/bin/gdb.cln lrwxrwxrwx. 1 root root 3 Jul 4 14:16 /usr/bin/gdbtui -> gdb Which accounts for the size changes as far as I can see. I infer that the linked sizes likely changed as a result of system library updates associated with the recent kernel update. Thank you for the help. > > I do not think prelink would alter text configuration files like > .Xauthority or .bash_history Those files I expected to change and I am aware of the the cause. It is only the files in /usr/bin that concern me. -- *** 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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Question about FASTTRACK, was [CentOS-announce] CEBA-2012:1035 CentOS 5 telnet FASTTRACK Update (fwd)
by Max Pyziur 04 Jul '12

04 Jul '12

Greetings, Are FASTTRACK updates delivered by way of a different repo? Thanks. Max Pyziur pyz(a)brama.com ---------- Forwarded message ---------- Date: Mon, 25 Jun 2012 11:29:52 +0000 From: Johnny Hughes <johnny(a)centos.org> Reply-To: centos(a)centos.org To: centos-announce(a)centos.org Subject: [CentOS-announce] CEBA-2012:1035 CentOS 5 telnet FASTTRACK Update CentOS Errata and Bugfix Advisory 2012:1035 Upstream details at : http://rhn.redhat.com/errata/RHBA-2012-1035.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: fa2d0bd6c2f94951334aec309dc2c0a54a1bf04e28b7519dc868456a803875ac telnet-0.17-41.el5.i386.rpm b81346fbbbfa9aabe0cce730c4625498786009306275d5045b590a91e981367d telnet-server-0.17-41.el5.i386.rpm x86_64: afe58abdf22e286fb825dd4f321c748d5c0a09dbad7174ba97db75608a0c4672 telnet-0.17-41.el5.x86_64.rpm 3cc350f4ced6c5623a9d687be4a3a7cbce8dc4858792896d68ca2f2527402a75 telnet-server-0.17-41.el5.x86_64.rpm Source: 8b7a9891f410718c09b306cb84a3f2bd02bb5517ecbe58467a86d58ba1ce829d telnet-0.17-41.el5.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

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Re: [CentOS] after last update google-chrome no runs anymore
by Gary Trotcko 04 Jul '12

04 Jul '12

On Tue, Jul 3, 2012 at 10:33 PM, Steve Clark <sclark(a)netwolves.com> wrote: > On 07/03/2012 02:03 PM, Gary Trotcko wrote: > > I wonder if I only user who came across this bug. > > What do you get when you run > > ldd /opt/google/chrome/chrome > $ ldd /opt/google/chrome/chrome /opt/google/chrome/chrome: /lib/libz.so.1: no version information available (required by /opt/google/chrome/chrome) /opt/google/chrome/chrome: /lib/libz.so.1: no version information available (required by /opt/google/chrome/chrome) linux-gate.so.1 => (0x002d2000) libX11.so.6 => /usr/lib/libX11.so.6 (0x004da000) libXrender.so.1 => /usr/lib/libXrender.so.1 (0x00221000) libXss.so.1 => /usr/lib/libXss.so.1 (0x002b8000) libXext.so.6 => /usr/lib/libXext.so.6 (0x00405000) librt.so.1 => /lib/librt.so.1 (0x00638000) libdl.so.2 => /lib/libdl.so.2 (0x008c3000) libgobject-2.0.so.0 => /lib/libgobject-2.0.so.0 (0x009bb000) libgthread-2.0.so.0 => /lib/libgthread-2.0.so.0 (0x00970000) libglib-2.0.so.0 => /lib/libglib-2.0.so.0 (0x00c9c000) libgtk-x11-2.0.so.0 => /usr/lib/libgtk-x11-2.0.so.0 (0xb34e4000) libgdk-x11-2.0.so.0 => /usr/lib/libgdk-x11-2.0.so.0 (0x00110000) libatk-1.0.so.0 => /usr/lib/libatk-1.0.so.0 (0x00365000) libgdk_pixbuf-2.0.so.0 => /usr/lib/libgdk_pixbuf-2.0.so.0 (0x001c5000) libpangocairo-1.0.so.0 => /usr/lib/libpangocairo-1.0.so.0 (0x001e4000) libcairo.so.2 => /usr/lib/libcairo.so.2 (0x00ea3000) libpango-1.0.so.0 => /usr/lib/libpango-1.0.so.0 (0x0022a000) libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x00416000) libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x00273000) libnss3.so => /usr/lib/libnss3.so (0x0068d000) libnssutil3.so => /usr/lib/libnssutil3.so (0x00a00000) libsmime3.so => /usr/lib/libsmime3.so (0x001f0000) libplc4.so => /lib/libplc4.so (0x00f55000) libnspr4.so => /lib/libnspr4.so (0x00acf000) libpthread.so.0 => /lib/libpthread.so.0 (0x002d3000) libz.so.1 => /lib/libz.so.1 (0x002bb000) libgconf-2.so.4 => /usr/lib/libgconf-2.so.4 (0x002ee000) libdbus-1.so.3 => /lib/libdbus-1.so.3 (0x00384000) libXcomposite.so.1 => /usr/lib/libXcomposite.so.1 (0x00354000) libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0x00b29000) libasound.so.2 => /lib/libasound.so.2 (0xb33f5000) libcups.so.2 => /usr/lib/libcups.so.2 (0x00f97000) libgcrypt.so.11 => /lib/libgcrypt.so.11 (0x007c6000) libbz2.so.1.0 => not found libexpat.so.1 => /lib/libexpat.so.1 (0x00328000) libudev.so.0 => /lib/libudev.so.0 (0x003cb000) libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb3307000) libm.so.6 => /lib/libm.so.6 (0x004ae000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00b74000) libc.so.6 => /lib/libc.so.6 (0xb3176000) /lib/ld-linux.so.2 (0x0066d000) libxcb.so.1 => /usr/lib/libxcb.so.1 (0x003dc000) libgio-2.0.so.0 => /lib/libgio-2.0.so.0 (0xb30c5000) libpangoft2-1.0.so.0 => /usr/lib/libpangoft2-1.0.so.0 (0x00f5c000) libgmodule-2.0.so.0 => /lib/libgmodule-2.0.so.0 (0x00a4c000) libXinerama.so.1 => /usr/lib/libXinerama.so.1 (0x0021b000) libXi.so.6 => /usr/lib/libXi.so.6 (0x002a8000) libXrandr.so.2 => /usr/lib/libXrandr.so.2 (0x00c74000) libXcursor.so.1 => /usr/lib/libXcursor.so.1 (0x00b4e000) libXdamage.so.1 => /usr/lib/libXdamage.so.1 (0x0021e000) libpng12.so.0 => /usr/lib/libpng12.so.0 (0x00641000) libpixman-1.so.0 => /usr/lib/libpixman-1.so.0 (0xb305a000) libplds4.so => /lib/libplds4.so (0x0062a000) libORBit-2.so.0 => /usr/lib/libORBit-2.so.0 (0xb2ffd000) libgssapi_krb5.so.2 => /lib/libgssapi_krb5.so.2 (0xb2fbd000) libkrb5.so.3 => /lib/libkrb5.so.3 (0xb2ee7000) libk5crypto.so.3 => /lib/libk5crypto.so.3 (0x00842000) libcom_err.so.2 => /lib/libcom_err.so.2 (0x00357000) libgnutls.so.26 => /usr/lib/libgnutls.so.26 (0xb2e3e000) libavahi-common.so.3 => /usr/lib/libavahi-common.so.3 (0x00612000) libavahi-client.so.3 => /usr/lib/libavahi-client.so.3 (0xb2e2c000) libcrypt.so.1 => /lib/libcrypt.so.1 (0xb2dfc000) libgpg-error.so.0 => /lib/libgpg-error.so.0 (0x0090c000) libXau.so.6 => /usr/lib/libXau.so.6 (0x002cf000) libresolv.so.2 => /lib/libresolv.so.2 (0xb2de2000) libselinux.so.1 => /lib/libselinux.so.1 (0xb2dc2000) libkrb5support.so.0 => /lib/libkrb5support.so.0 (0x00a83000) libkeyutils.so.1 => /lib/libkeyutils.so.1 (0x00e75000) libtasn1.so.3 => /usr/lib/libtasn1.so.3 (0x00a50000) libfreebl3.so => /lib/libfreebl3.so (0xb2d72000) -- Best Regards, Gary Trotcko

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