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Thursday, November 29, 2012

Gstreamer-ffmpeg Packages for rhel

1. Download the latest atrpms-repo rpm from

http://dl.atrpms.net/el6-x86_64/atrpms/stable/

2. Install atrpms-repo rpm:

# rpm -Uvh atrpms-repo*rpm

3. Install gstreamer-ffmpeg rpm package:

# yum install gstreamer-ffmpeg

[fusion]
name=fusion
baseurl=http://apt.sw.be/redhat/el6/en/x86_64/rpmforge/
enabled=1
gpgcheck=0

[atrpms]
name=atrpms
baseurl=http://dl.atrpms.net/el6-x86_64/atrpms/stable/
enabled=1
gpgcheck=0

Tuesday, November 27, 2012

Creating a Certificate Authority OR Self Signing

To create the private Certificate Authority we could make one as below..
How the whole thing works

1.First create Certificate Authority with needed credentials as per needed certificate details.To sign a certificate signing request the authority must have a certificate with same credentials as that of certificate signing request . so after configuring /etc/pki/tls/openssl.cnf with needed credential we need to create a private key and a certificate in the certificate authority

2.create the private key and certificate signing request at client side as per needed credential.

3.scp the certificate signing request csr from the client to the server which is the certificate authority and sign the csr with the certificate authority and get the certificate and send the certificate back to client


Signing of the certificate will be successful only if the the credentials in the certificate authorities certificate and that in certificate signing request matches

Packages needed are openssl*

1.
In server where we need to create the certificate authority

cd /etc/pki/tls/openssl.cnf
In that file we need to change the following as per out need
#######
dir             = /etc/pki/CA ----------------------> root directory of Certificate  authority
certificate     = $dir/my-ca.crt  ------------------> Certificate of the CA which is used to check against the csr
crl             = $dir/crl.pem    ------------------> certificate revocation list if the certificate is compromised
private_key     = $dir/private/my-ca.key -----------> private key of Certificate authority used to create the CA's certificate

#######Basic Credentials that should be same in both csr and the certificate in CA

stateOrProvinceName_default     = North Carolina
localityName_default            = Raleigh
0.organizationName_default      = Example, Inc.

#######There are more credentials which are used in certificate creation

#######Make the needed directories in CA

mkdir /etc/pki/CA/{cert,crl,newcerts}
touch /etc/pki/CA/index.txt
echo 01 > /etc/pki/CA/serial

NOW Creating the CA's private key and CERTIFICATE in corresponding places

cd /etc/pki/CA

openssl genrsa -out private/my-ca.key -des3 2048
openssl req -new -x509 -key private/my-ca.key -days 365 > my-ca.crt



2.
Creating privet key and Certificate Signing Request at client side
Creating private key

openssl genrsa -out private.key -des3 2048

Creating certificate sigining request with private key

openssl req -new -key private.key -out certificate.csr

here you will be asked for needed credentials ..Remember if the credentials are different in csr and ca the signing will be failure



3
With certificate.csr in Certificate Authority server we can sign the certificate

openssl ca -in certificatecsr.csr -out certificate.crt

here the ca implies that it will use the configuration from /etc/pki/tls/openssl.cnf to sign the signing request.

Or the other way is to self sign as follow after creating the private key and csr we could do self signing as follows

openssl  x509 -req -days 365 -in  certificate.csr -signkey private.key -out certificate.crt

Tuesday, November 13, 2012

Install Dolphin in Vps / Hosting

Installing Dolphin

We can install dolphin in two ways either as main site or as a sub directory ie a folder inside the main site. The difference between this two are is that to get the dolphin installed as the main site uncompress the tar file in the public_html folder so that we can access the site as following

http://your-domain-name/

and in second type we will be uncompressing the tar file in a directory inside public_html so that we can access the site as follows

http://your-domain-name/<name-we-give>

Downloading Dolphin


Cd /<path-to-root_directory>/public_html

mkdir dolphin

Change to the Dolphin directory by entering the following command:
cd dolphin

Download the latest Dolphin release by entering the following command:
http://www.boonex.com/paymentprovider/payment#download

wget http://get.boonex.com/Dolphin-v.7.0

Unzip the archive by entering the following command:
unzip Dolphin-v.7.0

Adding a MySQL User and Database


We could create the database and user using cpanel mysql window. Normally the database are named as username_databasename and username as username_name

mysql
CREATE USER USER_NAME IDENTIFIED BY PASSWORD
CREATE DATABASE DATABASE_NAME;
GRAND ALL ON DATABASE_NAME TO USER_NAME;
FLUSH PRIVILEGES;
EXIT;

GRANT ALL PRIVILEGES ON db_base.* TO db_user @’%’ IDENTIFIED BY ‘db_passwd’;


Configuring Permissions


Cd /<path-to-root-document>/public_html/dolphin

chmod 777 ./inc ./backup ./cache ./cache_public ./langs ./media/app ./media/images ./media/images/banners ./media/images/blog ./media/images/classifieds ./media/images/membership ./media/images/profile ./media/images/profile_bg ./media/images/promo ./media/images/promo/original ./tmp ./plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer ./plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer/HTML ./plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer/CSS ./plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer/Test ./plugins/htmlpurifier/standalone/HTMLPurifier/DefinitionCache/Serializer/URI

chmod 777 ./flash/modules/board/files ./flash/modules/chat/files ./flash/modules/photo/files ./flash/modules/im/files ./flash/modules/mp3/files ./flash/modules/video/files ./flash/modules/video_comments/files

chmod 666 inc/prof.inc.php

chmod 666 ./flash/modules/global/data/integration.dat ./flash/modules/board/xml/config.xml ./flash/modules/board/xml/langs.xml ./flash/modules/board/xml/main.xml ./flash/modules/board/xml/skins.xml ./flash/modules/chat/xml/config.xml ./flash/modules/chat/xml/langs.xml ./flash/modules/chat/xml/main.xml ./flash/modules/chat/xml/skins.xml ./flash/modules/desktop/xml/config.xml ./flash/modules/desktop/xml/langs.xml ./flash/modules/desktop/xml/main.xml ./flash/modules/desktop/xml/skins.xml ./flash/modules/global/xml/config.xml ./flash/modules/global/xml/main.xml ./flash/modules/im/xml/config.xml ./flash/modules/im/xml/langs.xml ./flash/modules/im/xml/main.xml ./flash/modules/im/xml/skins.xml ./flash/modules/mp3/xml/config.xml ./flash/modules/mp3/xml/langs.xml ./flash/modules/mp3/xml/main.xml ./flash/modules/mp3/xml/skins.xml ./flash/modules/photo/xml/config.xml ./flash/modules/photo/xml/langs.xml ./flash/modules/photo/xml/main.xml ./flash/modules/photo/xml/skins.xml ./flash/modules/video/xml/config.xml ./flash/modules/video/xml/langs.xml ./flash/modules/video/xml/main.xml ./flash/modules/video/xml/skins.xml ./flash/modules/video_comments/xml/config.xml ./flash/modules/video_comments/xml/langs.xml ./flash/modules/video_comments/xml/main.xml ./flash/modules/video_comments/xml/skins.xml

chmod 777 flash/modules/global/app/ffmpeg.exe


Running the Install Script


Navigate to http://host-name.com/dolphin/install/index.php.

The Dolphin installation page appears,

Click Install to begin.

If any of the file get failed we need to do that manually using chmod 755 for needed files.

All of the files listed should be Writable. Click Next to continue. The Paths Check webpage appears, as shown below.

If we get ImageMagick installed failed we need to install it manually .we could intall that using the cpanel scripts

Check whether ImageMagicK is installed or not:-à/scripts/checkimagemagick

Install ImageMagick :à/scripts/installimagemagick

/usr/bin/convert –version

If we get GD library failed intall it using

/scripts/easyapache

  1. "Start customizing based on profile"

  2. Select the Apache version and click next step.

  3. Select the Major PHP Version and click next step.

  4. Select the PHP Minor Version and click next step.

  5. Scroll down to the bottom and click "Exhaustive Options List". (If the module you are needing isn't listed)

  6. Select the modules you wish to add (GD library) then scroll to the bottom and click "Save and Build".


Even after installing GD library if we get GD library failed we need to edit

Find and edit the php.ini

And add

extension=php_gd2.dll

extension=php_gd.dll

and run the check again.

All of the paths listed should be "found". You should also see a GD library installed message at the bottom of the webpage. Click Next to continue. The Database webpage appears.

Enter the details for the Dolphin database you created earlier in this guide. Click Next to continue. The Configuration webpage appears.

Complete the form by entering the required information for your website, and then click Next to continue. The Cron Jobs webpage appears.

Now you'll need to set up a cron job specified on the webpage. We can also do this from the cpanel in graphical way. To set up your cron job, you'll need to open your crontab for editing by entering the following command:
sudo crontab -e

MAILTO=myemail@gmail.com
* * * * * cd /var/www/periodic; /usr/bin/php -q cron.php

To save the cron job, press Control-X, and then press Y to save.

Back in your web browser, click Next. The Permissions Reversal webpage appears, as shown below.

To reverse your permissions, enter the following commands, one by one.
cd /<path-to-document-root>/public_html/dolphin
find ./ -type d -exec chmod 755 {} \;
sudo find ./ -type f -exec chmod 644 {} \;
chmod 755 flash/modules/global/app/ffmpeg.exe;

Back in your web browser, click Check. The webpage should now indicate that the directory is "Non-writable", as shown below.

Click Next. If the webpage shown below appears its finished

After that copy the languages from the install/lang directory to dolphin/lang that in dolphin.

mv /<path-to-document-root>/public_html/dolphin/install/langs/* /<path-to-document-root>/public_html/dolphin/langs/

Now you'll want to remove the install directory by entering the following commands, one by one:
cd /<path-to-root-document>/public/dolphin
rm -rf install

Change the permissions of the cache, cache_public, langs, and tmp folders by entering the following commands, one by one:
chmod 777 cache
chmod 777 cache_public
chmod 777 tmp

You can now log into your admin panel at http://host-name.com/dolphin/administration/.