https://www.facebook.com/dialog/pagetab?app_id=YOUR_APP_ID&next=YOUR_URL
Replace "YOUR_APP_ID" with your App ID and "YOUR_URL" with your App’s Canvas URL
Reference:
http://developers.facebook.com/docs/appsonfacebook/pagetabs/
Problem:
Get the error "This application does not support integration with your profile." when you try to add a Facebook app to a Facebook page
Solution:
Specify the "Page Tab URL" of your Facebook application
mysql -u admin -p
use psa;
SELECT accounts.id, mail.mail_name, accounts.password, domains.name FROM domains LEFT JOIN mail ON domains.id = mail.dom_id LEFT JOIN accounts ON mail.account_id = accounts.id;
Problem:
Font Size is Limited to Minimum 12px on Chrome
Solution:
-webkit-text-size-adjust:none
cat /proc/cpuinfo
mysql> show variables like 'max_connections';
mysql> show processlist;
Problem:
Starting httpd: (98)Address already in use: make_sock: could not bind to address [::]:80
Solution:
netstat -lnp | grep 80
kill -9 process ID
1. Buy a Standard SSL Cert from GoDaddy
2. Make sure the whois record of the domain name is not private, and you have the access to the contact email
3. Login to Linux and enter this command:
openssl req -new -newkey rsa:2048 -nodes -keyout ca.key -out ca.csr
Enter the following information:
Passphrase: (pick a passphrase yourself and remember to mark it down)
Country Name: HK
State or Province Name: HKSAR
Locality Name: Hong Kong
Organization Name: MyHelper
Organizational Unit Name: MyHelper
Common name: my-helper.com
Email Address: info@my-helper.com
A challenge password: (empty)
An optional company name: (empty)
4. Copy the content of ca.csr to GoDaddy and follow this instruction to request the SSL Cert from GoDaddy:
https://products.secureserver.net/products/howtoapplyturbo.htm
5. Upload domain.com.crt and gd_bundle.crt to server
6. Open ssl.conf and enter:
DocumentRoot "/var/www"
SSLCertificateFile /etc/pki/tls/certs/myhelper/myhelper.com.crt
SSLCertificateKeyFile /etc/pki/tls/certs/myhelper/ca.key
SSLCertificateChainFile /etc/pki/tls/certs/myhelper/gd_bundle.crt
7. Stop Apache prompt for passphrase on next restart
cp /etc/pki/tls/certs/myhelper/ca.key /etc/pki/tls/certs/myhelper/ca.key.bak
openssl rsa -in /etc/pki/tls/certs/myhelper/ca.key -out /etc/pki/tls/certs/myhelper/ca.key
Reference:
http://blog.yorkxin.org/2009/02/23/buying-a-turbo-ssl-cert/
http://www.mnxsolutions.com/apache/removing-a-passphrase-from-an-ssl-key.html
Add the following meta tag
<meta name="format-detection" content="telephone=no">