So here is how we fix that and To install using rpm all you need is following two commands.

For Centos 5

rpm -ivh http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-2.el5.rf.i386.rpm
yum install rrdtool -y

For Centos 6

rpm -ivh http://apt.sw.be/redhat/el6/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.i686.rpm
yum install rrdtool -y

once sucessfully installed, you’ll find rrdtool in /usr/bin/

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Of course with a variety of tips and trick you can try.

Disable unneeded services

The following services can be set to manual:

- Application Experience
- Computer Browser (If you do not work in the network)
- Desktop Window Manager Session Manager (If you do not want the Aero Effect)
- Diagnostic Policy Service
- Distributed Link Tracking Client
- IP Helper
- Offline Files
- Portable Device Enumerator Service
- Print Spooler (If you do not have a printer)
- Protected Storage
- Tipsntrick.net Remote Registry (Disable to improve security)
- Secondary Logon
- Security Center
- Server (If you do not run a computer network)
- Tablet PC Input Service
- TCP / IP NetBIOS Helper
- Themes (If you use the Classic Theme)
- Windows Error Reporting Service
- Windows Media Center Service Launcher
- Windows Search (If you rarely use Fasilitan Search)
- Windows Time (If you do not want the clock on the computer are updated automatically via the internet)

Disabling AUTO UPDATE
If your hard drive partitioned into several drives, then try each drive is not full, a minimum of 2-5 giga empty
Adding Virtual Memory
Always at least 1 hard disk defrag routine once, if the use of routine
Clean up temporary files
Install the application only as needed
Avoid visual effects on the look of Windows 7 you
Configuring the Core Processors, do Start> msconfig, select the Boot tab> Advanced Options and enter 2, 4, or 8

If you feel your computer is heavy and very slow, you can restart to restore conditions to normal.

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Download the application and then
# tar -zxvf X-Lite_Install.tar.gz
# cd xten-xlite
# chmod +x xtensoftphone
#./xtensoftphone

It will give an error:

./xtensoftphone: error while loading shared libraries: libstdc++.so.5: cannot open shared object file: No such file or directory

It requires the libstdc++.so.5 so install it via apt:
# apt-get install libstdc++5
# apt-get install alsa-oss

but I must say that this runs on Ubuntu 8.10 hardy.
Meanwhile, when I use Ubuntu LTS 10.04.2, can not function when an error occurs

sudo apt-get install libstdc + +. so.5
[sudo] password for zullfree:
Reading package lists … Done
Building dependency tree
Reading state information … Done
E: Couldn’t find package libstdc + +. so.5

So I try to look for other alternatives SIPPhone software and I found QuteCom.
The install is easy as it’s part of the Ubuntu Community Software (Universe) and that means it can be installed via apt-get, Software Center or Synaptic.

Qutecom configuration

The QuteCom interface seems quite workable as well as having a number of other instant messaging options available.

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“Symbian carve a long history. Symbian will still be used in the future,” said Stephen Elop is also a former Microsoft employee, said in an interviewat show Nokia Conversation in China .

Nevertheless, Elop said that the manufacturing Symbian will continue to run to update the OS until early in 2016. “I think it’s very clear, updates Symbian will still run, at least until early 2016,” he added.

Nokia CEO did not say how long Nokia will continue to expect from Symbian market. But the talks have been very clear that Nokia will focus on WP7.

Elop also said that Nokia would be committed to sell 150 million handsets with Symbian, before they actually dive into the WP7.

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1. INSTALLATION

Ignore this file if you have a pre-installed binary package.

1a. SIMPLE INSTALLATION

If you do not need to modify the default configuration, then take
the following steps to build and install the server:

$ ./configure
$ make
$ make install

Note that as of 1.0.0, the location of the dictionary files has
changed, to /usr/local/share/freeradius/dictionary. Please ensure
that /etc/raddb/dictionary is THE SAME as ./raddb/dictionary. If not,
you will have to copy it over by hand;

$ cp ./raddb/dictionary /etc/raddb/dictionary

If you see errors like ‘invalid keyword “ATTRIB_NMC”‘, then you
should update the main dictionary file as described above.

Once the main dictionary file has been updated, and the server has
been verified to work, all of the other (old) dictionary files in
/etc/raddb may be deleted.

1b. CUSTOM INSTALLATION

FreeRADIUS has autoconf support. This means you have to run
./configure, and then run make. To see which configuration options
are supported, run ‘./configure –help’, and read it’s output. The
following list is a selection from the available flags:

–enable-shared[=PKGS] build shared libraries [default=yes]
–enable-static[=PKGS] build static libraries [default=yes]
–enable-fast-install[=PKGS] optimize for fast installation [default=yes]
–with-logdir=DIR Directory for logfiles [LOCALSTATEDIR/log]
–with-radacctdir=PATH Directory for detail files [LOGDIR/radacct]
–with-raddbdir=DIR Directory for config files [SYSCONFDIR/raddb]
–with-threads Use threads, if available. (default=yes)
–with-snmp Compile in SNMP support. (default=yes)
–disable-ltdl-install Do not install libltdl
–with-experimental-modules Use experimental and unstable modules. (default=no)
–enable-developer Turns on super-duper-extra-compile-warnings
when using gcc.
–with-edir Compile with support for Novell eDirectory
integration.

Now type “make”. The binaries will be compiled.

Then do “make install”. That will install the binaries, the ‘man’
pages, and MAY install the configuration files. If you have not
installed a RADIUS server before, then the configuration files for
FreeRADIUS will be installed. If you already have a RADIUS server
installed, then FreeRADIUS WILL NOT over-write your current
configuration. It will warn you about the files it could not install.

If you DO see a warning message about files that could not be
installed, then you should manually ‘diff’ the files. There MAY be
changes in the dictionary files which are REQUIRED for a new version
of the software. These files will NOT be installed over your current
configuration, so you MUST verify and install any problem files by
hand.

It is EXTREMELY helpful to read the output of both ‘configure’,
‘make’, and ‘make install’. If a particular module you expected to be
installed was NOT installed, then the output of the
‘configure;make;make install’ sequence will tell you why that module
was not installed. Please do NOT post questions to the FreeRADIUS
users list without carefully reading the output of this process.

2. RUNNING THE SERVER

If the server builds and installs, but doesn’t run correctly, then
you may use debugging mode to figure out the problem.

This is your BEST HOPE for understanding the problem. Read ALL of
the messages which are printed to the screen, the answer to your
problem will often be in a warning or error message.

We really can’t emphasize that last sentence enough. Configuring a
RADIUS server for complex local authentication isn’t a trivial task.
Your ONLY method for debugging it is to read the debug messages, where
the server will tell you exactly what it’s doing, and why. You should
then compare its behaviour to what you intended, and edit the
configuration files as appropriate.

If you don’t use debugging mode, then you will look dumb when you
ask questions on the ‘freeradius-users’ list, and the answer to your
question was contained in the debug messages you posted to the list.

Since the main developers of FreeRADIUS use debugging mode to track
down their configuration problems with the server, it’s a good idea
for you to use it, too. If you don’t, there is little hope for you to
solve ANY configuration problem related to the server.

To start the server in debugging mode, do:

$ radiusd -X

You should see a lot of text printed on the screen as it starts up.
If you don’t, or if you see error messages, please read the FAQ:

http://www.freeradius.org/faq/

If the server says “Ready to process requests.”, then it is running
properly. From another shell (or another window), type:

$ radtest test test localhost 0 testing123

You should see the server print out more messages as it receives the
request, and responds to it. The ‘radtest’ program should receive the
response within a few seconds. It doesn’t matter if the
authentication request is accepted or rejected, what matters is that
the server received the request, and responded to it.

You can now edit the ‘radiusd.conf’ file for your local system.
Please read the ENTIRE file carefully, as many configuration options
are only documented in comments in the file.

Configuring and running the server MAY be complicated. Please read
the documentation in the doc/ directory for further information. If
you have any issues, the FAQ is also a good place to check.

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To allow complete simulations, GNS3 is strongly linked with :

* Dynamips, the core program that allows Cisco IOS emulation.
* Dynagen, a text-based front-end for Dynamips.
* Qemu, a generic and open source machine emulator and virtualizer.

This project is an open source, free program that may be used on multiple operating systems, including Windows, Linux, and MacOS X. But I will only share how to install GNS3 on Ubuntu :

1. First we will install Dynagen and Python-Qt4

sudo apt-get install dynagen python-qt4

2. Download GNS3 and extract in /opt

cd /opt
sudo wget http://space.dl.sourceforge.net/project … rc.tar.bz2
sudo tar -xjvf GNS3-0.7.2-src.tar.bz2 && rm GNS3-0.7.2-src.tar.bz2
sudo mv GNS3-0.7.2-src /opt/GNS3

3. Create the following directories:
These directories will be used by GNS3 – such as projects – where your working projects will be stored, cache, temp, IOS images, etc.

cd /opt/GNS3
sudo mkdir Dynamips
sudo mkdir IOS
sudo mkdir Project
sudo mkdir Cache
sudo mkdir tmp
sudo chmod o+rw -R ./Project
sudo chmod o+rw -R ./tmp
sudo chmod o+rw -R ./IOS

4. Download binary of dynamips and make it executable

cd Dynamips
sudo wget http://www.ipflow.utc.fr/dynamips/dynam … C2-x86.bin
sudo chmod +x ./dynamips-0.2.8-RC2-x86.bin

You can create a desktop shortcut by right-clicking on the desktop and select “Create Launcher..”, Name it GNS3 and in the command section type in

python “/opt/GNS3/gns3″

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