As tried performing Diagnostics from DNP, I am getting the below:
Error: SmarterStats service is unavailable. The request failed with HTTP status 400: Bad Request.
Solution:
Remote access to the server > IIS > look for SmarterStats > Advanced setting
change: the IP to all unassigned; Port 9999; Host Header Blank <—-all unassigned is IMPORTANT!!!
Now, you can perform again Diagnostics, it should work fine now 
今天是2010年1月1日，进入新的一年了
我在哪里呢？老样子，现在，正在做工！过去的一年，我又做了什么？
。。。。。。。。。。。。。。。。
Wishing every one dreams come true!!
Horde application file path: /usr/local/cpanel/base/horde/
How to increase limit of the size of emails that can be fetched using Hordemail.
The path: /usr/local/cpanel/base/horde/imp/config/
conf.php
config.xml
Look for the above two files and edit the size limit at field and save it.
$conf['fetchmail']['size_limit'] = ‘4000000′;
You might need to increase value for ‘memory_limit’ in php.ini
php.ini for Horde application: /usr/local/cpanel/3rdparty/etc/horde
You could always run the file: test.php at /usr/local/cpanel/base/horde to check on the application setting, etc.
~!!
What is the usage for email_accounts.yaml ??
/home/username/.cpanel]# pico email_accounts.yaml
Answer:
YAML file contains a list of the current e-mail accounts
Ooops..I got the below message while restarting httpd services and WHM is not working fine 
Solution:
Have a check on the path /etc/ , list those files which contain *disable*
Result:
root@bearbear [/etc]# ls *disable*
httpddisable apachedisable entropychatdisable interchangedisable melangedisable mysqldisable
>> Delete the file: httpddisable apachedisable
Now, service httpd is running fine.
root@bearbear [~]# service httpd status
Server uptime: 4 seconds
~!!
~Done
To install ClamAV through cpanel, simply log into WHM > cPanel section > Manage Plugins, look for “clamavconnector” , click Install and Keep updated , then click save at the bottom of the page. This will install ClamAV. It may take a few minutes.
To install ClamAV AntiVirus manually, type in the command
yum install clamav clamav-devel clamd > Enter.
When asked to confirm download, type in y and press Enter.
To update the virus database, type in the command freshclam and press Enter.
freshclam
clamAV config path: /etc/clamd.conf
RoundCube sending error:
I cant send email from RoundCube, whywhy?!
Below is the error that I got while tailing the log, tail -f /var/cpanel/roundcube/log/errors
Error:
[17-Dec-2009 10:59:43] STARTTLS failed ():
[17-Dec-2009 11:05:13] Invalid response code received from server (421):
[17-Dec-2009 11:05:13] Invalid response code received from server (-1):
[17-Dec-2009 11:05:13 +0800] SMTP Error: SMTP error: Authentication failure: STARTTLS failed (Code: ) in /usr/local/cpanel/base/3rdparty/roundcube/program/steps/mail/func.inc on line 1248 (POST /3rdparty/roundcube/index.php?_task=mail
Google from Internet, it is a bug in PHP’s latest Net-SMTP module.
Temporary fix as below:
edit file:
// SMTP username (if required) if you use %u as the username RoundCube
// will use the current username for login
$rcmail_config['smtp_user'] = ‘%u’;
change to the below:
// SMTP username (if required) if you use %u as the username RoundCube
// will use the current username for login
$rcmail_config['smtp_user'] = ”;
usr/local/cpanel/base/3rdparty/roundcube/config/main.inc.php) and noticed a workaround until the module is patched/updated
It works!! Thanks!!But from exim maillog, it seems that there is no authentication leh?!
I have read for other solution is to run the command: /scripts/autorepair net_smtp_fix to fix the net_smtp, but I haven’t try yet.
~Cont~
I google around and got this:
a. /usr/lib/sendmail -f sender@abc.com -v rcpt@abc.com
b. mail -f sender@abc.com -v rcpt@abc.com
But as I tested, both are not working.
For the b, I am getting this “Cannot give -f and people to send to”
~Still checking why?!
Normal Forwarders path:
/etc/valiases/domain.tld
How about domain forwarders?
Answer: /etc/vdomainaliases/domain.tld