Evan Rowley | 18 Apr 19:13 2014
Picon

Starting the gotour server on CentOS 6

Hey CentOS folks!

I have an interesting issue with starting a server on a CentOS 6 KVM guest.
The server (service) in particular is gotour, which is a web application
created by Google and their Golang developers, intended to teach users the
basics of using the Go programming langauge.

When starting gotour, the program claims to be binding to port 12049, but
the VM doesn't seem to be serving anything on that port. Upon checking the
netstat output, I see a process bound to port 12049.

It is definitley possible that the problem is with Go itself, but I'd like
to rule out the possibility that something on an out-of-the-box CentOS 6
image might be preventing the server from working.

Here is some of the output:

[appengine <at> centos6-paas-dev gotour]$ gotour
2014/04/17 22:04:33 Serving content from
/home/appengine/goprojects/firstproj/go/src/code.google.com/p/go-tour
2014/04/17 22:04:33
WARNING!  WARNING!  WARNING!
I appear to be listening on an address that is not localhost.
Anyone with access to this address and port will have access
to this machine as the user running gotour.
If you don't understand this message, hit Control-C to terminate this
process.
WARNING!  WARNING!  WARNING!
2014/04/17 22:04:34 Please open your web browser and visit
http://10.10.10.205:12049
(Continue reading)

Dan Hyatt | 18 Apr 18:52 2014
Picon

Problem with blades that wont kickstart

About 15% of my blades wont kickstart.
I checked to see, and they all seem to be 100% compatible.

I currently do not own/direct access the kickstart server, I will build 
one later.

Is it possible they fat fingered the MAC address of the problem blades 
when they put them into the PXE server? As I can build them from a 
locally mounted virtual CD, but cannot build from PXE

At first I was getting a grub error. When I installed a baseline Centos 
locally, and then pxe booted for the build. I got a
cannot find C0T0   which indicates it cannot find the first drive 
(kickstart uses sda1), yet I look in the drac and I can see C0T0 drive 
as well as C0t1 drive  (this is a raid 1  virtual drive no mirror)

So here is my big question:    can I put my primary drive  in slot sda2 
on the blade... then DD the drive from the working blade, change the MAC 
address in the network interface, change the hostname/IP address in 
/etc/sysconfig/network and /etc/sysconfig/network-scripts/eth0   to 
build the drives?

What are the risks? what are the gotcha's? what problems will I have DD 
ing a drive that is currently the boot drive?

Any suggestions are welcome

--

-- 

Dan Hyatt
(Continue reading)

Steve Campbell | 18 Apr 17:49 2014

Samba4 questions

I'm a little new to Samba when used as more than just a simple place to 
mount a single user to a single share, but we're now getting ready to 
replace our Netware servers with Samba, and I guess that means Active 
Directory DC.

As I read more and more about this beast, I keep finding pages that 
indicate the samba4 rpms supplied with the Centos/RH distribution are 
not the full version and that I should get them from either samba.org or 
certain other sources that provide complete versions. These pages are a 
little dated, but not that old.

Can anyone provide insight into what they've done in this situation and 
whether the samba rpms are now full versions? Most of what I have found 
on the web is dated around when samba4 just came out of beta through a 
little later.

There doesn't seem to be much documentation on this subject on the web 
or through Amazon, so half of my time is spent searching instead of 
reading. A good source for reading would be appreciated as well. I can 
find plenty examples, just not definitive manuals.

steve campbell
Denis Hohryakov | 18 Apr 14:00 2014
Picon

On of mirrors doesn't work properly

Hello!

 curl 'http://64.235.47.134/?release=6&arch=x86_64&repo=os'
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html>
 <head>
  <title>Index of /</title>
 </head>
 <body>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>CentOS Mirror</title>
    <link rel="stylesheet" type="text/css" charset="utf-8" media="screen"
href="/HEADER.images/screen.css">
  </head>
  <body>
  <div id="header">
    <div id="logo"><a href="/"><img
src="/HEADER.images/modern-CentOS-logo.png" alt="CentOS"
border="0"></a></div>
    </div>
  </div>
<table bgcolor="#e0d2e3" text=#5e5e5e cellSpacing=0 cellPadding=0
width="100%" border=0 align="center">
  <tbody>
  <tr>
    <td vAlign=top>
      <table width="100%" border="0" cellspacing="0" cellpadding="0"
height="25">
(Continue reading)

centos | 18 Apr 14:00 2014

CentOS-announce Digest, Vol 110, Issue 9

Send CentOS-announce mailing list submissions to
	centos-announce@...

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@...

You can reach the person managing the list at
	centos-announce-owner@...

When replying, please edit your Subject line so it is more specific
than "Re: Contents of CentOS-announce digest..."

Today's Topics:

   1. CEBA-2014:0410 CentOS 5 device-mapper-multipath	Update
      (Johnny Hughes)

----------------------------------------------------------------------

Message: 1
Date: Thu, 17 Apr 2014 14:55:35 +0000
From: Johnny Hughes <johnny@...>
Subject: [CentOS-announce] CEBA-2014:0410 CentOS 5
	device-mapper-multipath	Update
To: centos-announce@...
Message-ID: <20140417145535.GA24537@...>
Content-Type: text/plain; charset=us-ascii

(Continue reading)

neubyr | 17 Apr 23:14 2014
Picon

yum - package version database

When I query for installed package on the system, I get following result:

# yum list installed openssl
Loaded plugins: fastestmirror, tsflags, verify, versionlock
Loading mirror speeds from cached hostfile
Installed Packages
openssl.x86_64
1.0.1e-16.el6_5.4
 <at> updates/$releasever

When I try to install already installed package (just playing with yum), I
get following result:

# yum install openssl
Loaded plugins: fastestmirror, tsflags, verify, versionlock
Loading mirror speeds from cached hostfile
Setting up Install Process
Package matching openssl-1.0.0-27.el6_4.2.x86_64 already installed.
Checking for update.
Nothing to do

Note, the version reported in both commands is different. Are they
referring to different rpmdb state? Appreciate any information on this
discrepancy.

- thanks,
N
Dan Hyatt | 17 Apr 22:04 2014
Picon

cannot kickstart centos 6 on Dell Blade error cannot find c0t0

I have an intermittent problem with my Dell blades, out of 80 blades 69 
of them kickstarted Centos 6 fine using PXE
The other 11, I get a   c0t0 not found error  (indicating it is not 
finding the local disk on the blade).

I can remote mount the iso image and do a basic install of centos on 
these blades, but when I go to do a pxe boot it gives me that error again.

I have googled the issue and come up empty handed. Dell told us to 
install centos 6 minimal ISO  then pxe install the server. This has been 
unsuccessful. I get the local ISO to install but the pxe fails again.

Since the kickstart file defines the disk as sda1  I am supposing that 
it is really a hardware problem.
But I am told by coworkers who handed it off to me that it is a known 
issue with centos and Dell blades.

These are two internal disks on the blade.

Any suggestions?

--

-- 

Dan
m.roth | 17 Apr 16:52 2014
Picon

semi-OT:R and rkhunter

The latest version of rkhunter is complaining about "suspicious file
types" in /dev/shm. Thing is, they're being created on the fly by R, and
then seem to be a random name (5d1f...), and I have zero expectation that
R will only create shm files beginning with those characters.

For those running rkhunter, if you've run into something like this, how
have you handled it - told rkhunter to ignore /dev/shm, or lived with the
regular complaints in the logs, or...?

I note that of the three files created by R, one ends in _counter, and
another starts with sem.(same long random name as the other
files)_counter_mutex. The third has neither prefix nor postfix.

      mark "and googling on rkhunter "R language" keeps getting me repos,
since both R and rkhunter are under the letter r....

       mark "brought to you by Arrrghh...."
centos | 17 Apr 14:00 2014

CentOS-announce Digest, Vol 110, Issue 8

Send CentOS-announce mailing list submissions to
	centos-announce@...

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@...

You can reach the person managing the list at
	centos-announce-owner@...

When replying, please edit your Subject line so it is more specific
than "Re: Contents of CentOS-announce digest..."

Today's Topics:

   1. CESA-2014:0406 Critical CentOS 6	java-1.7.0-openjdk Update
      (Johnny Hughes)
   2. CESA-2014:0408 Important CentOS 6	java-1.6.0-openjdk Update
      (Johnny Hughes)
   3. CESA-2014:0408 Important CentOS 5	java-1.6.0-openjdk Update
      (Johnny Hughes)
   4. CESA-2014:0407 Important CentOS 5	java-1.7.0-openjdk Update
      (Johnny Hughes)

----------------------------------------------------------------------

Message: 1
Date: Wed, 16 Apr 2014 13:14:43 +0000
From: Johnny Hughes <johnny@...>
(Continue reading)

Jim Perrin | 16 Apr 22:51 2014

docker image updates for CentOS


We've been working with the docker community to get official CentOS
images into the index. We've now got CentOS 6.5 (as of 12 april) into
the index, and we'll be keeping things updated as we go forward. The
structure looks a bit like this:

centos:latest = The most recent build of the most recent major release.
centos:centos6 = the most recent build of CentOS 6.

We've also had requests for a CentOS 5 based docker image, so we'll
start on that in the very near future.

For more information, have a look at
http://wiki.centos.org/Cloud/Docker or https://www.docker.io/

--

-- 
Jim Perrin
The CentOS Project | http://www.centos.org
twitter:  <at> BitIntegrity | GPG Key: FA09AD77
James B. Byrne | 16 Apr 22:29 2014
Picon

A naive question respecting x.509 logins

I have been looking at replacing our current login systems with a single login
solution.  In the process I managed to get sidetracked into investigating
pam_pkcs11.  My question, which no doubt reveals the depth of my ignorance,
is: Can a simple USB flash memory stick be configured to work with this or
some similar module of which I as yet know nothing?

Everything I have managed to find about this method of loging on to CentOS
implies that either a special smart-card and dedicated reader or a
purpose-built usb smart-token is required.  Is this in fact so?  Is there no
way to just use a standard usb flash memory 'key' to achieve the same effect?

--

-- 
***          E-Mail is NOT a SECURE channel          ***
James B. Byrne                mailto:ByrneJB@...
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