How to check mysqli support in cpanel servers.
The mysqli extension allows you to access the functionality provided by MySQL 4.1 and above. More information about the MySQL Database server can be found at ยป http://www.mysql.com/
To check if mysqli is installed run the following command.
/usr/local/bin/php -m | grep -i mysql
To install
Select the package mysql improved from Exhaustive options list
To verify whether mysqli is installed
# /usr/local/bin/php -m | grep -i mysql
Creating versus Purchasing a SSL Certificate
Based on the needs of your website, you may decide to either create a self-signed certificate or purchase an SSL certificate. If your site only handles minimally senstitive data, then creating your own self-signed certificate may be appropriate.
If your site handles extremely senstitive data (such as credit card information), you should purchase an SSL certificate. Buying a certificate offers a third-party verification system to ensure visitors the security of your site.
ChkServd TCP check failure threshold
Main >> Server Configuration >> Tweak Settings
The number of times a ChkServd TCP check must fail before notification is sent and the service is restarted. On heavily loaded systems these types of service checks fail occasionally, producing erroneous indications that services are down.
A value of 3 or higher is recommended for most systems.
Exim Message-IDs and spool files
The message-IDs that Exim uses to refer to messages in its queue are mixed-case alpha-numeric.
Files in /var/spool/exim/msglog contain logging information for each message and are named the same as the message-id.
Files in /var/spool/exim/input are named after the message-id, plus a suffix denoting whether it is the envelope header (-H) or message data (-D).
Exim Basic information
Print a count of the messages in the queue:
root@localhost# exim -bpc
Print a listing of the messages in the queue (time queued, size, message-id, sender, recipient):
Print a summary of messages in the queue (count, volume, oldest, newest, domain, and totals):
root@localhost# exim -bp | exiqsumm
Print what Exim is doing right now:
lfd Principles
One of the best ways to protect the server from inbound attack against network daemons is to monitor their authentication logs. Invalid login attempts which happen in a short space of time from the same source can often mean someone is attempting to brute-force their way into the server, usually by guessing user names and passwords and therefore generating authentication and login failures.
lfd can monitor the most commonly abused protocols, SSHD, POP3, IMAP, FTP and HTTP password protection. Unlike other applications, lfd is a daemon process that monitors logs continuously and so can react within seconds of detecting such attempts. It also monitors across protocols, so if attempts are made on different protocols in a short space of time, all those attempts will be counted against the threshold.
