Issue :

It seems that by default, it is set to reject mails with a spam score of more than 20 at SMTP time. How to change the value of spam score for rejecting the mails at SMTP time ?

Solution :

You can do that by doing the following :

1. Go to WHM >> Main >> Service Configuration >> Exim Configuration Editor
2. Look for the section ‘ACL Options’ .
3. The first parameter under that deals with the spam score setting at SMTP time. De-select the check box corresponding to that.
4. When you de-select the check box, it will give you the other available options. Check the box corresponding to the desired value.
5. Click on ‘Save’ at the bottom to save the settings.

Issue :

The server hostname was changed. Ever since that, secure access such as http://servername.new:2087 redirects to https://servername.old:2087

Fix :

This happens when the SSL certificate has not been reset for the services.
Go to WHM >> Manage Service SSL Certificates.
Re-issue all the service certificates.

This should resolve the issue!

Issue :

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

Issue :

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.

Issue :

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 !

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.

Issue :

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.

Issue :

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.

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

Issue :

How to add an SRV record via WHM? There does not seem to be enough fields to enter all the data.

Solution :

Go to WHM >> Main >> DNS Functions >> Edit DNS Zone and select the domain for which you need to add the SRV record and click ‘Edit’

Once in there, look for the section ‘Add New Entries Below this Line’ .

Now when you select ‘SRV’ from the drop down for the type of record, you will see additional fields appearing where you can put in all the required data

Issue :

After a fresh installation on a CentOS server and following all the standard steps, it is not connecting to WHM on port 2087.

Fix :

CentOS has default iptables (firewall) rules that block access to cPanel ports when out of the box.
You can flush them using the following command :

iptables -F

Also, remove them from /etc/sysconfig/iptables to prevent them from re-appearing on a system reboot or service restart.

This should fix the issue!

Source : cPanel Forum

Issue :

How can you access cPanel like, say, http://domainname.com/xyz ? This is for security purposes.

Solution :

This can be done but not recommended as it would not be of much effect security-wise.
Even if you change it, cPanel/WHM would still run on the standard ports (2082/2083 & 2086/2087) which is known to everyone. If you have a valid cPanel license then you can contact their support and get the ports changed. This coupled with a strong password (change regularly) should be good enough.

However, coming back to the original question, you can achieve it in the following way :

Go to /usr/local/apache/conf/httpd.conf
Find the following line :

ScriptAliasMatch ^/?cpanel/?$ /usr/local/cpanel/cgi-sys/redirect.cgi

Comment it out by adding a ‘#’ at the beginning and add the following line below that line :

ScriptAliasMatch ^/?xyz/?$ /usr/local/cpanel/cgi-sys/redirect.cgi

Issue :

WHM does not let you create an account with the domain name having native characters of certain languages.

Fix :

To get around this, go to IDN Conversion Tool.
Enter your domain name and get the equivalent PunyCode.
You should be able to add that via WHM

Issue :

How to allow sending of unlimited emails from the server?

Solution :

Just go to WHM >> Tweak settings >> The maximum each domain can send out per hour (0 is unlimited) >> Put ’0′ there and save the setting.

That should be it

Issue :

Following message occurs every time when trying to connect to an own dedicated server from other servers.

Access Denied: Referrer Check

Functions in cPanel / WHM are available only directly through the cPanel and WHM interfaces or through our XML API. It appears that this request is coming from a referring site and might be malicious. Administrator Note: If new ips
were recently bound to this server manually you must restart cpsrvd.
If you wish to continue to this page, you may do so but please note that allowing other sites to tell you which actions to perform in cPanel / WHM could be a security risk. Continue at Your Own Risk!

Fix :

The message says it all. Isn’t it?

But if you still want to prevent this message from coming up every time you try to connect then disable the following option in WHM >> Tweak Settings >> Security section :

Only permit cpanel/whm/webmail to execute functions when the browser provided referrer (Domain/IP and Port) exactly matches the destination URL. This will help prevent XSRF attacks, but may break integration with other systems, login applications, and billing software. Cookies are required with this option enabled.