How to enable SuPHP ?

Solution :

Login to WHM.

Go to “Service Configuration >> Apache Configuration >> Configure PHP and Suexec” and check if SuPHP is available in the drop down menu. If it is available then select it and save the configuration after a dry run.
SuExec should also be available in the same drop down with an on/off option.

If SuPHP is not available then you need to run EasyApache via “WHM >> Software >> EasyApache (Apache Update)” and select SuPHP in the available options. You can also run EasyApache via console by using the following cPanel scipt :

/scripts/easyapache

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Whenever a new account is created, the server sends out an email notification. Where can this setting be accessed and modified?

Fix :

Just go to WHM >> Basic cPanel/WHM Setup >> Server Contact Email Address.
You can make the required changes there.

How to turn off the bandwidth monitoring module in cPanel ?

Solution :

Go to WHM >> Service Configuration >> Service Manager.
Look for ‘cPBandwd’. Make sure that the check box besides that is unchecked.
Save the settings and that should be it !

How can a large file, say 1GB, for some testing purposes be created?

Solution :

Use the following command :

dd if=/dev/zero of= filename bs=1024 count=1024number of 0’s

Replace ‘filename’ with the actual filename.
Replace ‘number of 0’s’ with the required number of 0’s

For example,
One ‘0′ for 10MB , two for 100 MB and so on..

For the above scenario (file of size 1GB), use the following command :

dd if=/dev/zero of=file.test bs=1024 count=1024000

There is no control panel installed on the server. So, how can the total number of user accounts on the system be determined?

Solution:

Use the following command to find the total number of accounts on the system :

cat /etc/passwd | wc -l

Note : This will also include system accounts like root, mail etc.

To list all the accounts on the system then use the following :

cat /etc/passwd | cut -d”:” -f1

Following is the error that occurred :

Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
addons | 951 B 00:00
base | 2.1 kB 00:00
extras | 1.1 kB 00:00
updates | 1.9 kB 00:00
Not using downloaded repomd.xml because it is older than what we have:
Current : Tue Feb 9 08:57:23 2010
Downloaded: Tue Jan 26 09:27:44 2010
Excluding Packages in global exclude list
Finished
Setting up Update Process
No Packages marked for Update

Solution :

Run the following two commands :

yum clean all
yum check-update

That should fix the issue.

The server is mainly used for serving webpages and FTP. Certain things like DNS functions and email are not required as they are being handled externally. How can these be hidden from resellers/users?

Solution :

DNS, email or any other functionality can be handled through ‘Feature Lists’ in WHM. Just go to WHM >> Feature Manager. Edit/create a feature list and enable/disable functions as required. Assign this ‘feature list’ to the particular ‘package’ which is assigned to the accounts.

The cronjob results in the following error :
/bin/sh: /usr/local/bandmin/bandmin: is a directory

Solution :

This happens when the bandmin directory simply contains another bandmin directory instead of an executable script of the same name.

Run the following script and see if the issue persists :

# /scripts/bandminup –force

How to block emails from a specific address on a cPanel/WHM server using Exim ?

Solution :

This is fairly easy to achieve with Exim.
First you’ll need to find the system filter file for Exim. This can be found out through WHM >> Main >> Service Configuration >> Exim Configuration Editor.
Towards the middle of the page, under the section ‘Filters’ , you ‘ll find the path to the file.
Open that file via SSH using your favorite editor and add the following to it :

if first_delivery
and ( (”$h_from:” contains “emailtoblock@domainname.com”)
)
then fail
endif

If you would like a copy of the email to be sent to you after the message fails, use the following code :

if first_delivery
and ( (”$h_from:” contains “emailtoblock@domainname.com”)
)
then
unseen deliver “youremail@yourdomainname.com”
fail
endif

Make sure that you substitute the correct email addresses in the above code.

Was able to login to all FTP accounts using the root password earlier but now it doesn’t seem to work. Where to check that?

Fix :

Go to WHM >> Main >> Service Configuration >> FTP Server Configuration.
At the bottom of the page, you’ll find an option as ‘Allow Logins with Root Password’
Make sure that it is set to ‘Yes’ and save the settings.

This should resolve the issue.

How can the overall size of an email including attachment, encoding etc. be limited to a pre-defined value?

Solution :

This can be done in the following way :
Go to WHM >> Main >> Service Configuration >> Exim Configuration Editor
In the first box where you can type ( right below where you see ‘#!!# cPanel Exim 4 Config’ ), add the following directive :

message_size_limit = 100M

This will limit the overall size of the message to 100Mb

Where can I check the current version of Horde webmail client running with cPanel ?

Solution :

If you have ‘root’ SSH access to the server then, simply open the file /var/cpanel/horde/version using your favorite editor and you’ll be able to see the current Horde version.

How can a particular email account be ‘disabled’ temporarily. Note that the email account should not be ‘deleted’ ? Is this possible at all via cPanel?

Solution :

There is no direct functionality in cPanel at the moment for this. This feature might be added at a later stage.
However, you can achieve this functionality by modifying a few entries via SSH.

Comment out the entries related to the particular email account in the following locations:
/home/user/etc/domainname/passwd
/home/user/etc/domainname/shadow
/home/user/etc/domainname/quota

Make sure that you just comment them and NOT delete them as you might need them back later.

A MySQL database was created and still does exist but it is not being listed in the Plesk interface.

Solution :

This usually happens when the database is not created via Plesk. Instead, it might have been created via SSH.

To get around this, there are two ways :

1. This is the simpler of the two.

Just take a dump of the database.

mysqldump -u <username> -p <password> databasename > databasename.sql

Drop the database.

mysql -u <username> -p <password>
drop database <databasename>

Create the database via Plesk.
Plesk Control Panel >> Domains >> Mysql Database >> Add Database

Restore the database.

mysql databasename < databasename.sql

2. Another method is a bit complex one and is advised for expert users only.

After taking a backup of the current psa database, you will have to edit it from the backend and add the database details in the database table manually.