» Linux http://eitwebguru.com Sat, 04 Sep 2010 14:26:12 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Setup VLC Stream Network (How to create Secondary Streaming VLC Server and Client) http://eitwebguru.com/setup-vlc-stream-network-how-to-create-secondary-streaming-vlc-server-and-client/ http://eitwebguru.com/setup-vlc-stream-network-how-to-create-secondary-streaming-vlc-server-and-client/#comments Mon, 02 Aug 2010 15:37:40 +0000 Milind http://eitwebguru.com/?p=890 In previous article I have told how to configure a Primary Server from where the actual Video will be streamed and published. In this article I will explain how we can configure the Secondary server which will stream the videos to their clients.

Setup Secondary Streaming Server

1) Login to the Secondary Server and open VLC Player on it.

vlc1 1 300x178 Setup VLC Stream Network (How to create Secondary Streaming VLC Server and Client)

2) Go to Media >> Streaming

vlc1 2 300x180 Setup VLC Stream Network (How to create Secondary Streaming VLC Server and Client)

3) On Open Media window go to Network Tab and Enter the URL of the server with Port 8080 (Default port) and press Stream.


vlc1 31 300x290 Setup VLC Stream Network (How to create Secondary Streaming VLC Server and Client)

4) Stream Output Source >> Press Next

vlc1 41 300x257 Setup VLC Stream Network (How to create Secondary Streaming VLC Server and Client)

5) Destination: Select HTTP >> Add (again this server will start stream on port 8080 by default). Also Select the Trans-coding and press Next.

vlc1 5 300x257 Setup VLC Stream Network (How to create Secondary Streaming VLC Server and Client)

6) Others: You will see miscellaneous options which you can select as per your requirement. Press Stream to start Streaming.

Configuring VLC Client (End User)

1) Open VLC Player on local System

vlc2 1 300x116 Setup VLC Stream Network (How to create Secondary Streaming VLC Server and Client)

2) Go to Media >> Open Network Stream

3) Select HTTP Protocol From the Drop Down and insert the IP address and Port of Secondary Server. Press Play.

vlc 2 31 238x300 Setup VLC Stream Network (How to create Secondary Streaming VLC Server and Client)


That’s it, your Live VLC Streaming Network is ready.

]]> http://eitwebguru.com/setup-vlc-stream-network-how-to-create-secondary-streaming-vlc-server-and-client/feed/ 1 Setup VLC Stream Network (How to create Streaming VLC Server [Primary]) http://eitwebguru.com/setup-vlc-stream-network-how-to-create-streaming-vlc-server-primary/ http://eitwebguru.com/setup-vlc-stream-network-how-to-create-streaming-vlc-server-primary/#comments Tue, 27 Jul 2010 12:56:25 +0000 Milind http://eitwebguru.com/?p=872 Recently I have worked on a project where I have to stream a video on Internet which will be then accessed by the Servers on different locations and those servers will then stream the same video to the sub-ordinate systems simultaneously. Using this we can reduce the Load on Main Streaming Server as well as we can save lot of bandwidth as if all the server/systems connect to the Main server directly bandwidth usage of both the server and the client will be very high.

Scenario:
1) Video will be streamed from a Server on Internet.
2) Many other Servers will connect to the Server.
3) These servers will then stream the same video on their network (e.g. on LAN).
4) Users of local system will access the video from secondary servers.

Following image can explain the Scenario in a better way

VLC Cluster 300x300 Setup VLC Stream Network (How to create Streaming VLC Server [Primary])

Step to Stream Video on Primary Server

Following are the steps to stream a video on Primary Server which can be located on remoter location.

1) Login to the Server and install VLC on it.
2) Open VLC Media Player

VLC 1 300x89 Setup VLC Stream Network (How to create Streaming VLC Server [Primary])

3) Go to Media >> Streaming

VLC2 300x224 Setup VLC Stream Network (How to create Streaming VLC Server [Primary])

4) Now add the file which you want to stream and Press Stream

VLC3 300x290 Setup VLC Stream Network (How to create Streaming VLC Server [Primary])

5) Source: On Stream Output screen it will show the Source file; press Next to continue

VLC4 300x257 Setup VLC Stream Network (How to create Streaming VLC Server [Primary])

6) Destination: Add HTTP as new destination which will automatically run on port 8080 and you can activate trans-coding as well. Press Next to continue.

VLC5 300x256 Setup VLC Stream Network (How to create Streaming VLC Server [Primary])

7) Others: You will see miscellaneous options which you can select as per your requirement. Press Stream to start Streaming.

VLC6 300x257 Setup VLC Stream Network (How to create Streaming VLC Server [Primary])

8) VLC will start streaming the Video which you have mentioned.

VLC7 300x87 Setup VLC Stream Network (How to create Streaming VLC Server [Primary])


In Next Article I will explain How to setup Secondary Server and clients to watch live streaming

]]> http://eitwebguru.com/setup-vlc-stream-network-how-to-create-streaming-vlc-server-primary/feed/ 2 BlueProximity: Lock Computer using your Phone http://eitwebguru.com/blueproximity-lock-computer-using-your-phone/ http://eitwebguru.com/blueproximity-lock-computer-using-your-phone/#comments Tue, 15 Jun 2010 07:35:57 +0000 Milind http://eitwebguru.com/?p=757 BlueProximity is a tool which detects your mobile phone via bluetooth and locks your computer when your bluetooth blueproximity logo BlueProximity: Lock Computer using your Phonephone is out of bluetooth reach. If you move away from your Desktop of computer and the distance between you and computer is more than a certain limit for a given time, BlueProximity will lock it automatically. You can also execute or start any shell command using this software. Once the administrator/User come nearer than the configured level for a set of time, the system will gets unlock automatically.

Things required
1) Bluetooth Dongle
2) Mobile Phone with Bluetooth.

Steps to Install BlueProximity
Automatic (For Hardy or newer version)
BlueProximity is included in the repos of Hardy or newer version of Ubuntu and it can be installed using “apt-get”:

sudo apt-get install blueproximity

Manual Installation

For older version of Ubuntu (Older than Hardy) you will have to manually install blueproximity.

1) First you have to install Dependencies

sudo apt-get install bluez-utils python-gtk2 python-glade2 python-configobj python-bluez

2) Install latest version of python-support package from http://security.ubuntu.com/ubuntu/pool/main/p/python-support/ and install it using command “sudo dpkg -i”

3) Install BlueProximity
Download BlueProximity from http://sourceforge.net/projects/blueproximity/files/ OR http://mirrors.kernel.org/ubuntu/pool/universe/b/blueproximity/ and install it using “dpkg”

Pair Devices
1) Insert Bluetooth Dongle on your System and enable it (and set it Visible)
2) Activate Bluetooth on your Mobile and Scan for your computer.
3) Authorize and Pair both the devices using PIN.

Steps to Configure BlueProximity

1) Open blueproximity from Accessories or execute the command “blueproximity” which will show following Image

BLUEP 269x300 BlueProximity: Lock Computer using your Phone

2) Scan for the devices and Select the device you want to configure. (Make sure that the device is Paired with Computer Already)

3) BlueProximity Settings/Configuration/Details: Click on Proximity Details which will show following options

Set Following
Lock:
Distance: 7
time: 10

Unlock:
Distance: 3
time: 3

BLUEP2 271x299 BlueProximity: Lock Computer using your Phone

4) Locking and Unlocking: By Default Proximity uses following commands to lock and unlock your screen automatically.

BLUP3 300x268 BlueProximity: Lock Computer using your Phone

Locking Command: gnome-screensaver-command -l
Unlocking command: gnome-screensaver-command -d

But you can turn your monitor off at the time of lock which will save Electricity when you are away from your computer and switch it on when you return. Using Following Commands to lock&turn off and “unlock & turn On the monitor

Locking Command: gnome-screensaver-command -l && xset dpms force off
Unlocking command: xset dpms force on && gnome-screensaver-command -d

Bluep4 300x272 BlueProximity: Lock Computer using your Phone


Now, get up from your chair and move few steps back !!!!

]]> http://eitwebguru.com/blueproximity-lock-computer-using-your-phone/feed/ 3 High CPU Usage by Qmail (Plesk 9.x) http://eitwebguru.com/high-cpu-usage-by-qmail-plesk-9-x/ http://eitwebguru.com/high-cpu-usage-by-qmail-plesk-9-x/#comments Thu, 20 May 2010 11:16:39 +0000 Milind http://eitwebguru.com/?p=704 Qmail (Default Mail Server for Plesk) on Plesk 9.0 sometime start consuming high CPU and overloading server. This sometime happens due to lot of failed message to ‘postmaster’ which overload Qmail. Following is the header of the failed message:

From: MAILER-DAEMON@server.mail.com
To: postmaster@server.mail.com
Subject: failure notice
Date: 10 Apr 2010 02:49:00 +0100
Size: 17540794 bytes
Queue Time: 1270864142 sec
Envelope Recipients (R): webmaster@somedomain.com


In order to fix the problem, please execute following command from the Shell of the Server (root):

[root@support007 ~]# /usr/local/psa/admin/sbin/autoinstaller –select-release-current –install-component base


This will install few micro-updates for Plesk which fix postmaster issues. After that use /usr/local/psa/admin/sbin/mailqueuemng utility to delete messages from qmail queue.

Now the server load will be under control and there will be no failed messages in queue.

[root@vps1846 ~]# /usr/local/psa/admin/sbin/mailqueuemng -s
Messages in local queue: 0
Messages in remote queue: 0
Messages in todo queue: 0
Messages total: 0
Messages found: 0
Timestamp: 1270864534
]]> http://eitwebguru.com/high-cpu-usage-by-qmail-plesk-9-x/feed/ 1 How to Install MP4Box on Linux Server http://eitwebguru.com/how-to-install-mp4box-on-linux-server/ http://eitwebguru.com/how-to-install-mp4box-on-linux-server/#comments Tue, 04 May 2010 08:49:44 +0000 Milind http://eitwebguru.com/?p=677 MP4Box is a MP4 multiplexer, which can import MPEG-4 video, DivX, XviD, 3ivx, h264 etc, audio streams and subtitles into the .mp4 container. The end result is a compliant MP4 stream. It can also extract streams from a .mp4. MP4Box is a command line tool, but can be used with graphical user interfaces such as YAMB or my MP4box GUI.

1) Download MP4Box
Execute Following commands on Shell to Download the MP4Box Source

[root@server ~]# cd /usr/local/src/
[root@server src]# wget http://nchc.dl.sourceforge.net/project/gpac/GPAC/GPAC%200.4.5/gpac-0.4.5.tar.gz
[root@server src]# wget http://nchc.dl.sourceforge.net/project/gpac/GPAC%20extra%20libs/GPAC%20extra%20libs%200.4.5/gpac_extra_libs-0.4.5.tar.gz


“gpac-0.4.5.tar.gz” is Main Source for MP4Box where as “gpac_extra_libs-0.4.5.tar.gz” contains Extra Libraries which will enhance the functionality of MP4Box.

2) Extract the Downloaded sources
Extract both the downloaded files using Tar

[root@server src]# tar -zxvf gpac-0.4.5.tar.gz
[root@server src]# tar -zxvf gpac_extra_libs-0.4.5.tar.gz


3) Copy the Additional Libraries from “gpac_extra_libs” to “gpac” folder

[root@server src]# cd gpac_extra_libs
[root@server gpac_extra_libs]# cp -r * /usr/local/src/gpac/extra_lib
[root@server gpac_extra_libs]# cd ..


4) Install GPac or MP4Box

Execute following Commands on the Shell of your Linux Server one after one (Make sure it doesn’t throw any Error)

[root@server src]# cd gpac
[root@server gpac]# ./configure
[root@server gpac]# make lib
[root@server gpac]# make apps
[root@server gpac]# make install lib
[root@server gpac]# make install


5) Once GPAC get installed Properly, copy the gpac .so file from gpac directory to System libraries

[root@server gpac]# cp bin/gcc/libgpac.so /usr/lib


Thats all. you can verify if the MP4Box is installed or not using following Command.

[root@server gpac]# which MP4Box
/usr/local/bin/MP4Box
[root@server gpac]#


Problems Faced While installation.

I have faced two problems while installation of MP4Box

1) Permission of “./Configure” was not set; I have corrected it by setting permission of the file to 755

[root@server gpac]# ./configure
-bash: ./configure: Permission denied
[root@server gpac]# chmod 755 configure


2) Error on 64 Bit OS. Following Error was thrown. This Error can be fixed by creating an symbolic link of /usr/lib64/libglut.so.3 to /usr/lib64/libglut.so

ERROR:-

/usr/bin/ld: cannot find -lglut
collect2: ld returned 1 exit status

FIX:-

[root@server gpac]#ls /usr/lib64 |grep glut
libglut.so.3
[root@server gpac]# ln -s /usr/lib64/libglut.so.3 /usr/lib64/libglut.so

]]> http://eitwebguru.com/how-to-install-mp4box-on-linux-server/feed/ 1 FIX: cannot restore segment prot after reloc: Permission denied http://eitwebguru.com/fix-cannot-restore-segment-prot-after-reloc-permission-denied/ http://eitwebguru.com/fix-cannot-restore-segment-prot-after-reloc-permission-denied/#comments Fri, 16 Apr 2010 10:58:48 +0000 Milind http://eitwebguru.com/?p=656 While installation of any package or Starting any service on a RHEL or CentOS based Server you may receive following Error

cannot restore segment prot after reloc: Permission denied

 

This Error comes when SELinux setting is enabled on the server. Security-Enhanced Linux (SELinux) is a Linux feature that provides a mechanism for supporting access control security policies through the use of Linux Security Modules (LSM) in the Linux kernel.

By Default SELinux is set to “enforcing” in CentOS on boot, this can be disabled permanently. To disable it edit file “/etc/selinux/config” and change SELINUX

From

SELINUX=enforcing

 

TO

SELINUX=disabled

 

But to apply this setting the System or Server need to be rebooted. If you want to disable this feature temporary you can execute following command from the Shell of the System or Server

/usr/sbin/setenforce 0
]]> http://eitwebguru.com/fix-cannot-restore-segment-prot-after-reloc-permission-denied/feed/ 3 How to: Set Priotrities for YUM Repositories http://eitwebguru.com/how-to-set-priotrities-for-yum-repositories/ http://eitwebguru.com/how-to-set-priotrities-for-yum-repositories/#comments Fri, 09 Apr 2010 16:20:35 +0000 Milind http://eitwebguru.com/?p=646 Sometime when you have enabled many YUM Repositories like local repository, rpmforge, ATrpms for your server and it’s quite difficult to manage packages where you want that the package which you want to install too be searched on Local Repository first, then to CentOS Base, update and if it doens’t find the package here it will go for any other Third Party Repositories.

This Task can be done by setting up Priority for the Yum Repositories. Following are the steps to set Priorities for YUM Repositories

1) Install yum-priorities

The yum-priorities is used to enforce ordered protection of repositories, by giving priorities to repositories. Packages from repositories with a lower priority will never be used to upgrade packages that were installed from a repository with a higher priority. The priorities are also in effect when a new package is installed – if a package is in more than one repository, it will be installed from the repository with the highest priority. This plugin is particularly useful for anyone who uses one or more third-party repositories, as these repositories may update system files, which can potentially compromise the stability of your CentOS installation. This Package can be installed using following YUM Command.

[root@server ~]# yum install yum-priorities -y


**using option -y with yum will allow yum to install package with taking permission from user.

2) Applying Priorities

Priorities for a Repository need to be added in .repo file. Following is the syntax for setting Priority

priority=[NUM]


Here [NUM] will be the Priority. The Repository with higher priority will be used for installing any package. e.g. if you want your local repository should have highest priority than you can set highest priority for the same like below

[localrepo]
name = CentOS $releasever – MyLocalRepo
baseurl = file:///opt/CENTOS/RPMS/
enabled=1
gpgcheck=0
priority=10


All other repositories will have lesser value as compared to Local Repository.

]]> http://eitwebguru.com/how-to-set-priotrities-for-yum-repositories/feed/ 2 Plesk 9.3.0 Qmail BUG: Blank messages to Plesk admin email address http://eitwebguru.com/plesk-9-3-0-qmail-bug-blank-messages-to-plesk-admin-email-address/ http://eitwebguru.com/plesk-9-3-0-qmail-bug-blank-messages-to-plesk-admin-email-address/#comments Wed, 17 Mar 2010 14:15:01 +0000 Milind http://eitwebguru.com/?p=588 Recently we have found that many of Plesk users are complaining about receiving Blank Email to the Plesk Admin address like below

 

blankemail Plesk 9.3.0 Qmail BUG: Blank messages to Plesk admin email address

 

As per Parallels this is the latest bug in Plesk which will be fixed in future releases. They have also provided a work around for the problem; as per them this issue can be temporary fixed by adjusting the permissions of mail handlers hooks. Execute following command from the Shell of your Server.


[root@server ~]# chmod o+x /usr/local/psa/handlers/hooks/*
]]> http://eitwebguru.com/plesk-9-3-0-qmail-bug-blank-messages-to-plesk-admin-email-address/feed/ 0 HTTPD doesn’t start After Atmail Installation in Plesk http://eitwebguru.com/httpd-doesnt-start-after-atmail-installation-in-plesk/ http://eitwebguru.com/httpd-doesnt-start-after-atmail-installation-in-plesk/#comments Mon, 15 Mar 2010 12:31:56 +0000 Milind http://eitwebguru.com/?p=581 After installation of Atmail Webmail Client, while restarting Apache it throws following Syntax Error:

[root@server ~]# service httpd start
Starting httpd: httpd: Syntax error on line 210 of /etc/httpd/conf/httpd.conf: Syntax error on line 6 of /etc/httpd/conf.d/zzz_atmail_vhost.conf: Include directory ‘/etc/psa/webmail/atmail/conf.d’ not found [FAILED]


First we will have to check where atmail is installed. We can do that by querying the RPM files using option “rpm -ql“

[root@server ~]# rpm -ql psa-atmail-1.02-cos5.build92091210.17 | grep etc
/etc/psa-webmail/atmail
/etc/psa-webmail/atmail/atmail.conf
/etc/psa-webmail/atmail/atmail_vhost.conf
/etc/psa-webmail/atmail/conf.d
/etc/psa-webmail/atmail/create_db.sql.in
/etc/psa-webmail/atmailcom
/etc/psa-webmail/atmailcom/atmailcom_vhost.conf
/etc/psa-webmail/atmailcom/conf.d
[root@server ~]#


The above output shows that the files are created in “/etc/psa-webmail/” directory instead of “/etc/psa/webmail/“

[root@server ~]# ls -al /etc/psa-webmail/atmail
total 28
drwxr-xr-x 3 root root 4096 Dec 28 10:37 .
drwxr-xr-x 5 root root 4096 Dec 28 10:37 ..
-rw-r–r– 1 root root 122 Dec 10 11:54 atmail.conf
-rw-r—– 1 root apache 14 Aug 19 2009 .atmail.shadow
-rw-r–r– 1 root root 2932 Dec 10 11:54 atmail_vhost.conf
drwxr-xr-x 2 root root 4096 Dec 10 11:54 conf.d
-rw-r–r– 1 root root 200 Dec 10 11:54 create_db.sql.in
[root@server etc]#


So, copy the file to relevant directory as in the conf file of httpd service

[root@server ~]# cp -a /etc/psa-webmail/atmail /etc/psa/webmail/


After that we were able to start the httpd service successfully.

[root@server etc]# /etc/init.d/httpd restart
Stopping httpd: [FAILED]
Starting httpd: [ OK ]
]]> http://eitwebguru.com/httpd-doesnt-start-after-atmail-installation-in-plesk/feed/ 0 eUKhost Ltd. has launched VOIP Services http://eitwebguru.com/eukhost-ltd-has-launched-voip-services/ http://eitwebguru.com/eukhost-ltd-has-launched-voip-services/#comments Tue, 02 Mar 2010 16:47:36 +0000 Milind http://eitwebguru.com/?p=558 eukvoip eUKhost Ltd. has launched VOIP Services

eUKhost Ltd., a provider of Shared, Reseller Hosting, Virtual Private Servers and Dedicated Servers, today announced that it has extended its services portfolio by introducing Voice over Internet Protocol (VoIP) services. The company states that the service is designed specifically for VoIP service providers and businesses using VoIP services.

Voice over Internet Protocol (VoIP) is transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks. Other terms frequently encountered and synonymous with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, and broadband phone.

The company avers that it will provide Free Trixbox installation with Extensions, Trunks, Route Setup, HUD configuration along with full support and management for the dedicated server. It further explains that it will pre-configure and optimize each Linux server with either Asterisk or Trixbox.

“There are numerous web hosting companies offering VoIP server hosting, but what makes eUKhost’s VOIP Server Hosting stand apart is full server management along with support for Trixbox and Asterisk” said Jack Mason, Product Manager at eUKhost.

“We see VoIP services as a high value extension of our varied product range and believe that it will achieve significant growth into our customer base.” he adds further.

Pricing for VoIP Dedicated Servers (http://www.eukhost.com/voip-dedicated-servers.php) start at £79/month for 1U rack servers. The company states that only branded server hardware from Dell Computers is used so that users receive the best dedicated server hosting experience.

]]> http://eitwebguru.com/eukhost-ltd-has-launched-voip-services/feed/ 0