After alot of research and running of our own servers we seem time and time again with yum and up2date and even rpm updates with the following error

error: unpacking of archive failed on file /bin/tar: cpio: rename failed

even when you logged in root and see the same issue

to solve this message logged in as root run the following command

chattr -ais

for example:

chattr -ais /bin/tar

now run yum upgrade or RPM

if you still have issues just leave comments and i will find an solution for you!

• How To Install RED5 Server on Centos 5.4

In this how to i will describe how to install RED5 server on Centos 5.4.x This how to can be used to install RED5 server on Centos 4 and Fedora 8 – 11 as well. RED5 is open source flash server written in java supports streaming audio/video, recording client streams, shared objects, live stream publishing etc.

1) Download and Install Java

RED5 server depends on Java. CentOS 5.4 comes with OpenJDK 1.6 and install it using yum.

yum install java-1.6.0-openjdk java-1.6.0-openjdk-devel java-1.6.0-openjdk-javadoc java-1.6.0-openjdk-src

2) Download and Install Ant (Apache Project)

Ant will need to compile RED5 server code. Ant comes in binary form, so just download and install it in /usr/local directory.

cd /usr/src
wget http://apache.sunsite.ualberta.ca/ant/binaries/apache-ant-1.8.0-bin.tar.bz2
tar jxvf apache-ant-1.8.0-bin.tar.bz2
mv apache-ant-1.8.0 /usr/local/ant

3) Export Variables for Ant and Java

export ANT_HOME=/usr/local/ant
export JAVA_HOME=/usr/lib/jvm/java
export PATH=$PATH:/usr/local/ant/bin
export CLASSPATH=.:$JAVA_HOME/lib/classes.zip

Also export these variables in /etc/bashrc to become available for every user login or for any terminal opens.

echo ‘export ANT_HOME=/usr/local/ant’ >> /etc/bashrc
echo ‘export JAVA_HOME=/usr/lib/jvm/java’ >> /etc/bashrc
echo ‘export PATH=$PATH:/usr/local/ant/bin’ >> /etc/bashrc
echo ‘export CLASSPATH=.:$JAVA_HOME/lib/classes.zip’ >> /etc/bashrc

4) Download and Install RED5 Server

Here the latest version available for RED5 is 0.9 on site but download from google code using svn as the tarball of 0.9 on site is missing some of the files.

cd /usr/src
svn checkout http://red5.googlecode.com/svn/java/server/trunk/ red5
mv red5 /usr/local/
cd /usr/local/red5
ant prepare
ant dist

you will see a ton of lines, but you should get at last

BUILD SUCCESSFUL

that’s mean its install and now copy the conf directory from dist/ and test the red5 installation.

cp -r dist/conf .
./red5.sh

If it shows Installer service created in the last then everything is fine here, press ctrl+c and move to next step to create init script.

5) Init Script

Now we will create init script for red5 to start, stop and restart easily.

vi /etc/init.d/red5

The init script code below:

#!/bin/sh
# For RedHat and cousins:
# chkconfig: 2345 85 85
# description: Red5 flash streaming server
# processname: red5

PROG=red5
RED5_HOME=/usr/local/red5
DAEMON=$RED5_HOME/$PROG.sh
PIDFILE=/var/run/$PROG.pid

# Source function library
. /etc/rc.d/init.d/functions

[ -r /etc/sysconfig/red5 ] && . /etc/sysconfig/red5

RETVAL=0

case “$1″ in
start)
echo -n $”Starting $PROG: ”
cd $RED5_HOME
$DAEMON >/dev/null 2>/dev/null &
RETVAL=$?
if [ $RETVAL -eq 0 ]; then
echo $! > $PIDFILE
touch /var/lock/subsys/$PROG

fi
[ $RETVAL -eq 0 ] && success $”$PROG startup” || failure $”$PROG startup”
echo
;;
stop)
echo -n $”Shutting down $PROG: ”
killproc -p $PIDFILE
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$PROG
;;
restart)
$0 stop
$0 start
;;
status)
status $PROG -p $PIDFILE
RETVAL=$?
;;
*)
echo $”Usage: $0 {start|stop|restart|status}”
RETVAL=1
esac

exit $RETVAL

Now start the service

/etc/init.d/red5 start

check status

/etc/init.d/red5 status
red5 (pid  XXXXX) is running…

again you can do stop, restart.

6) Test

Now test the RED5 installation by opening following URL in browser

http://yourip:5080/

you will see red5 page like this

and demos can be find here.

http://yourip:5080/demos/

You can use simple port tester tool that determines which ports the Flash Player is able to connect through to the Red5 server. Put your server address or IP in HOST when using port tester. You should get SUCCESS on RTMP or port 1935. If not please check your firewall.

http://yourip:5080/demos/port_tester.html

7) ISSUE

When you run ./red5.sh, it will show you Installer service created. Thats mean everything runs fine and red5 server is up. But if you went to port_tester.swf using demos above or your application shows connections FAILS, this is an issue of RTMPT and RTMPTS. You can see it by running

/usr/local/red5/red5.sh

output trancated

[INFO] [main] org.red5.server.tomcat.TomcatLoader – RTMPT server bean was not found
[INFO] [main] org.red5.server.tomcat.TomcatLoader – RTMPS server bean was not found

output truncated

If you see this you have to uncomment the RTMPT and RTMPTS TomcatLoader in/usr/local/red5/conf/red5-core.xml

vi /usr/local/red5/conf/red5-core.xml

Search for a lines

<!– RTMPT –>
<!–
<bean id=”rtmpt.server” class=”org.red5.server.net.rtmpt.TomcatRTMPTLoader” init-method=”init” lazy-init=”true”>

Remove the <!– from start of <bean and –> from end of </bean>

Same goes for RTMPS

<!– RTMPS –>
<!–
<bean id=”rtmps.server” class=”org.red5.server.net.rtmps.TomcatRTMPSLoader” init-method=”init” lazy-init=”true”>

Remove the <!– from start of <bean and –> from end of </bean>

Restart the red5 services and connection fails problem will be fixed.

If you any question please use comments.

Intended Audience

This article is intended for PHP programmers and HTML designers interested in applying a new technique for web development – PHP templating. Advanced knowledge of PHP programming and HTML is assumed.

Smarty3 Overview

The theoretical web development process is that: first the designer makes the interface, and breaks it down into HTML pieces for the programmer then the programmer implements the PHP business logic into the HTML.

That’s fine in theory, but in practice, from my experience, the client frequently comes with more requirements, or maybe more modifications to the design or to the business logic. When this happens , the HTML is modified (or words rebuilt ) programmer changes the code inside HTML.

The problem with this scenario is that the programmer needs to be on stand-by until the designer completes the layout and the HTML files. Another problem is that if there is a major design change then the programmer will change the code to fit in the new page. And that’s why I recommand Smarty. Smarty is a templating engine for PHP.

You can download it from http://www.smarty.net or svn checkout http://smarty-php.googlecode.com/svn/branches/Smarty3Alpha/

The installation process is very simple. Just read the documentation and follow up the instructions.

So what is Smarty ? Smarty is a set of PHP classes that compile the templates into PHP scripts. Smarty is a template engine and a very useful tool for designers and programmers.
Smarty for Designers

Designers work with HTML files. To work with Smarty, you work with template files. These files are are made up of static content but combined with Smarty mark-up tags. All the template files have a .html or .tpl extension. The Smarty template tags are enclosed within { and } delimiters or custom delimiters which can be defined or bypassed in the class.

Let’s consider the basic structure of a web page. There is a header, a middle part, and a footer. A template file that includes the header and the footer looks like this:

{include file=”header.tpl”}
<form name=”form1″>
Label1 <input type=”text” name=”text1″>
<input type=”submit” value=”submit”>
</form>
{include file=”footer.tpl”}

All the templates should reside in a single template directory. After calling a template for the first time, the compiled template will reside in templates_c.

Smarty language is very poweful. All the variables that come from PHP are identified in Smarty with {$Variable_Name} (we precede them with a $ sign). So if we have a variable in PHP that is called $MyName, then to print it in Smarty you have to write something like:

<html>
<body>
Welcome, {$MyName} <br>
</body>
</html>

The power of Smarty lies also in its flexibility. You can insert IFs and LOOPs into the template. The syntax for IF is:

{if <condition> }
html code
{else}
html code
{/if}

Let’s say you have a dynamic menu based on links. Depending on the link you click, you go to a specific page. So you get from PHP a variable $Menu with a integer value, depending on the page you are. The template looks like :

{if ($Menu == 1) }
Option 1
{else}
<a href=”option1.php”>Option 1</a>
{/if}
{if ($Menu == 2)}
Option 2
{else}
<a href=”option2.php”>Option 2</a>
{/if}

For coding a loop let’s suppose you get an array like the following from PHP :

<table>
<tr
{section name=user loop=$userID}
{if $smarty.section.user.iteration is odd}
bgcolor=#efefef
{else}
bgcolor=#ffffff
{/if}
>
<td> ID = {$userID[user]}  </td>
<td> Name = {$name[user]}     </td>
<td> Address = {$address[user]} </td>
</tr>
{sectionelse}
<tr>
<td>
There is no user.
</td>
</tr>
</section>
</table>

Iteration is an internal counter for Smarty. It helps us to know the current iteration of the section. I use this internal variable to make alternate row colors in the table by checking if current iteration value is odd or not.

An alternative for LOOPS is FOREACH which is used to loop over a single associative array.

<foreach from=$users item=current_user>
Name = {$current_user}
<foreachelse}
No user available.
</foreach>

The main difference between SECTION and FOREACH is that for SECTION you can start from a specific value, and can also set a step for the iteration, whereas for FOREACH you have to loop over all values.
Smarty for Programmers

The advantage for programmers is that they write the code in a PHP file without having to mix the instructions with HTML. Furthermore, if the designer changes the layout of a page the programmer doesn’t have to change the code to suit the new layout since the functionalities won’t change. You do your work in your files, assign to the templates all the values needed to print on the site and go out for a beer. You won’t get phone calls asking you to change a bit of code because the designer changed the layout and now a set of internal errors cropped up.

In the PHP file you need to include the Smarty class require ‘Smarty.class.php’. After that you need to instantiate the smarty with $smarty = new Smarty.

To assign a variable to the template you need to $smarty->assign(‘UserName’, ‘John Doe’). After everything is finished you call the method to display the template $smarty->display(‘index.tpl’).

A sample code looks like this (index.php) :

<?php
require ‘Smarty.class.php’;
$smarty = new Smarty;

$smarty->assign(‘Username’, ‘John Doe’);
$smarty->display(‘index.tpl’);
?>

The template (index.tpl) looks like this:

<html>
<body>
Welcome {$Username}
</body>
</html>

You can also create an array in PHP an pass it to the template:

$tmp = array ( ‘UID’=> ’10′,  &’Name’ => ‘John Doe’, ‘Address’=>’Home address’);
$smarty->assign(‘info’, $tmp);

Sample Script

This script connects to a local database and select all the products from the ‘Products’ table. Then it passes all the values to the template, which prints them on the screen.

INDEX.PHP

<?php
require ‘Smarty.class.php’;
$smarty = new Smarty;

$hostname = “localhost”;
$dbUser = “sqluser”;
$dbPass = “sqlpass”;
$dbName = “sqldb”;
// connect to the database
$conn = mysql_connect($hostname, $dbUser, $dbPass) or die(“Cannot connect to the database”);

mysql_select_db($dbName);

$sql = “SELECT product_id, info FROM products ORDER BY product_id ASC”;
// get all the products from the table
$res = mysql_query($sql);
$results = array();
$i=0;
while ($row=mysql_fetch_array($res)) {
$tmp = array(
‘product_id’ => $r['product_id'],
‘info’=> $r['info']
);
$results[$i++] = $tmp;
}
// pass the results to the template
$smarty->assign(‘results’, $results);
// load the template
$smarty->display(‘index.tpl’);
?>

INDEX.TPL

<html>
<body>
Here’s a table with the results: <br>
<table cellpadding=1 cellspacing=0 border=0 width=100%>
{section name=nr loop=$results}
<tr {if $smarty.section.nr.iteration is odd} bgcolor=”#efefef”{/if}>
<td width=15%>
<nobr><a href=&#8221;show-product.php?id={$results[nr].product_id}”>Press here</a>

<td width=29%><a href=”show.php?id={$results[nr].prodID}”
{popup inarray=$smarty.section.nr.iteration}
>{$results[nr].info}</a></td>
</tr>

{sectionelse}
<tr><td align=”center”><br><b>no product </b> <br> </td></tr>
{/section}

</table>

<br>

Here’s a select with the results: <br>
<select name=”mys”>
{section name=nr loop=$results}
<option value=”{$results[nr].product_id}”>{$results[nr].info}</option>
{/section}
</select>

</body>
</html>
Summary

Smarty is a great tool for both designers and developers. By using Smarty you can reduce the site development and maintenance times. If you are a developer you no longer need to mix PHP code with HTML code. Just take care of business logic and leave the HTML to the designer.

Many of my developers work from windows including myself. Creating secure access over ssh and svn (svn+ssh://)
using Zend studio and svn (subversion plugin for zend) was the initial idea, from a quick pass over subversion, but once svnserver was up and running and I tried it, this wasn’t as simple. There are several articles on integrating subversion, ssh and windows. None of the solutions looked simple or elegant. And wide open unsecured traffic was not acceptable.

I determined best practice pointed us to subversion access through web_dav_svn -> web_dav -> apache2 (https://). This brought authentication away from centralized auth and allowed fine grained control over the access granted via htpasswd and .htaccess files. It allowed us to restrict unsecured access and redirect http to https, and encrypt using SSL. It kept us from having to work ssh onto windows for each developer, instead we could have a simple eclipse/subclipse plugin access demonstrated and from that point they were able to customize on their own.

What I wanted was:

* untar subversion-1.6.6 and subversion-deps-1.6.6 in /apps/src (they layer over each other)
* first build and install the -deps apr and apr-util into /apps/local
* then build apache2 against /usr/local/apr and /usr/local/apr-util
* install apache2
* build and install serf
* remove serf, apr, and apr-util subdirectories and source code from within subversion-1.6.6
* build 1.6.6 against apxs in apache, without Berkeley DB, without neon, and specifying /usr/local/apr, /usr/local/apr-util, and /usr/local/serf
* install and test

process

* create subdirectory /apps/src, place all tarballs in this directory
* untar subversion & subversion-deps version 1.6.6 (these tar onto each other)
* cd subversion-1.6.6/apr
* ./configure –prefix=/usr/local/subversion/apr
* make && make install
* cd ../apr-util
* ./configure –prefix=/usr/local/subversion/apr-util –with-apr=/usr/local/subversion/apr
* make && make install
* cd ../neon
* ./configure –prefix=/usr/local/subversion/neon
*
* apache2: untar httpd-2.2.14
* ./configure –prefix=/usr/local/subversion/apache –enable-dav –enable-dav-fs –enable-dav-lock –enable-expires –enable-headers –enable-info –enable-logio –enable-proxy –enable-rewrite –enable-unique-id –with-apr=/usr/local/subversion/apr –with-apr-util=/usr/local/subversion/apr-util –enable-so –enable-mods-shared=all
* make && make install

This way apache2 builds against apr and apr-util compatible with subversion 1.6.6
and then build subversion against it as well..
* ln -s /apps/apache2_2.2.14 /apps/apache2
* compile and install serf
* ./configure –-prefix=/usr/local/subversion/serf –with-apr=/usr/local/subversion/apr –with-apr-util=/usr/local/subversion/apr-util
* make && make install
* remove serf, pr and apr-util from subversion

compile subversion

./configure –prefix=/apps/svn –with-ssl –with-libs=/usr/local/ssl –without-berkeley-db –with-apxs=/apps/apache2/bin/apxs –with-openssl=/usr/local/ssl –without-neon –with-serf=/usr/local/serf –with-apr=/usr/local/apr –with-apr-util=/usr/local/apr-util

make && make install

test:

/usr/local/subversion/svn/bin/svnadmin create /usr/local/subversion/repository

chown subversion:subversion /usr/local/subversion

chown -Rv subversion.subversion /usr/local/subversion

root@dedicated[/bin] $

no core dump…

ONWARD to configure and test apache2 and subversion…
httpd.conf:

* change all references to apache2_2.2.14 to apache2 (makes the httpd.conf generic rather than subject to needing a migration after a point release upgrade…)
* change port 80 to a non-priveliged port (8080)
* check for
o LoadModule dav_module modules/mod_dav.so
o LoadModule dav_module modules/mod_dav.so
o LoadModule ssl_module modules/mod_ssl.so
* add in ServerName hostname.domain.com:8443 Some of the apache level sanity validation requires a statement of the local host.
* add in SSL stuff (this IS httpd from source – the default httpd.conf had the ssl-module load statement, but no explicit SSL configuration

#
# Note: The following must must be present to support
# starting without SSL on platforms with no /dev/random equivalent
# but a statically compiled-in mod_ssl.
#

<IfModule ssl_module>
SSLRandomSeed startup builtin
SSLRandomSeed connect builtin
</IfModule>

# =================================================
# SSL/TLS settings
# =================================================

Listen 0.0.0.0:8080
Listen 0.0.0.0:8443

SSLEngine on
#SSLOptions +StrictRequire

#<Directory />
# SSLRequireSSL
#</Directory>

SSLProtocol -all +TLSv1 +SSLv3
SSLCipherSuite HIGH:MEDIUM:!aNULL:+SHA1:+MD5:+HIGH:+MEDIUM

SSLMutex file:/apps/apache2/logs/ssl_mutex

SSLRandomSeed startup file:/dev/urandom 1024
SSLRandomSeed connect file:/dev/urandom 1024

SSLSessionCache shm:/apps/apache2/logs/ssl_cache_shm
SSLSessionCacheTimeout 600

SSLPassPhraseDialog builtin
SSLCertificateFile /apps/apache2/conf/ssl.crt/server.crt
SSLCertificateKeyFile /apps/apache2/conf/ssl.key/server.key

SSLVerifyClient none
SSLProxyEngine off

<IfModule mime.c>
AddType application/x-x509-ca-cert .crt
AddType application/x-pkcs7-crl .crl
</IfModule>

* create ssl certificate (self-signed). I installed in /apps/apache2/conf/ssl.crt and ssl.key, naming the .crt and ,key files for the server hostname and then symbolically linking them to the generic “server.crt” and “server.key”.
* restart apache2 and test https://host:8443/ – you should get the “It works!” apache test page, thus validating the SSL certificate and setup from a browser level
*
* parent directory for svn

<Location /svn>
DAV svn
SVNParentPath /apps/repos
</Location>