We will use the Yast tool to configure the NTP on the SUSE server.

Issue the Command as follows to initiate the yast tool.

#yast

You can find basic yast configuration screen as follows. Navigate to Network Services and select NTP configuration.

This will open the basic NTP configuration screen.

To configure the server with the basic NTP time synchronization while bootup of the servers select the option During Boot . In the NTP Server configuration section you can use the Random timeservers  Servers  or you can configure the required NTP server to be configured with the server in the Address section.

You can configure Advanced Settings for the NTP server via the Advanced Configuration setting.

It will open a screen similar to the following:

Select the Edit option and place the appropriate Server details in the Address section. Once Done Click on Finish. It will auto restart all the respective services for NTP. Quit the Yast tool once all the above settings are done as mentioned.

You can check the configuration using the ntpq command.

#ntpq -p

Or

# ntpq

ntpq> peers

This will print a list of the peers known to the server. Thats it! The server is now synchronized with the mentioned NTP server.

For enabling the access you will have to enable the environment variable called http_proxy on your server / machine. This variable enables the access to the application or the text based sessions via the proxy server. You will just need to know the hostname (or IP address) of the proxy server and the proxy port number of the proxy server.

You can enable the variable by using the  following command to set proxy server.

[root@server]# export http_proxy=http://server-ip:port/

If you are using an IP address for enabling the variable you can use the following command:

[root@server]# export http_proxy=http://10.0.0.1:3128/

If you are using hostname for the proxy server you can use the following command:
[root@server]# export http_proxy=http://proxy_server_domainname:3128/

You are now all set to go!

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Service: [exim] has been disabled by the sys admin

Trying to restart exim on the cPanel server issues as mentioned above.

This issue arises as the exim service is disabled in WHM>> Service Manager >> Exim.  So if you face the above error login to the WHM of the server and enable the service from the Service Manager. Now when you try to restart the service you should not face any error.

Lets make a backup copy of the current filters so we can restore the same in case if there are issues with the newly configured filters.

# cp -a /etc/cpanel_exim_system_filter /etc/cpanel_exim_system_filter-orig

Assuming that the incoming emails for all the email accounts under the domain and outgoing emails from the email accounts from the domain are stored in different email accounts , we will add 2 different email accounts.
For example:
outgoing@domain.com Will be used to store the outgoing emails from the domain email accounts.
incoming@domain.com Will be used to store the incoming emails for the domain email accounts.

Open the file /etc/cpanel_exim_system_filter and add the following lines at the end of the file:

########### Filter to locate the emails for the domain with fields TO, CC, BCC having the domain name included ###############
if (“$h_to:, $h_cc:, $h_bcc” contains “domain.com”)
then
unseen deliver “incoming@domain.com”
endif

########### Filter to locate the emails sent from the domain ##############
if $sender_address_domain is domain.com
then
unseen deliver “outgoing@domain.com”
endif

Just restart the exim service and now you can get a copy of all the incoming and outgoing emails from the domain .

# service exim restart

In WHM ensure the filters are enabled from Main >> Service Configuration >> Exim Configuration Editor .

You can refer THIS URL to track outgoing emails in cPanel without BCC.

Please check the package assigned for the domains, the package  added might be by default created with dedicated IP.

To resolve the issue  remove the package and recreate the package with Dedicated IP option deselected .

Now try adding an account from WHM with defined package. It should be added now.

2012-02-19 12:45:17 Berkeley DB error: /var/spool/exim/db/ratelimit: unexpected file type or format
2012-02-19 12:45:17 failed to open DB file /var/spool/exim/db/ratelimit: Bad file descriptor
2012-02-19 12:45:17 H=xxx.xxxx.xxxx [1.1.1.1] temporarily rejected connection in “connect” ACL: ratelimit database not available
2012-02-19 12:45:17 Berkeley DB error: /var/spool/exim/db/ratelimit: unexpected file type or format

The above error is basically due to exim database on the server being corrupted. You can follow the follow the following steps for this:

First stop the exim service

[root@support ~]#/etc/init.d/exim stop

[root@support ~]#cd /var/spool/exim

We will create a backup of the current exim DB.

[root@support exim]# cp -R db/ db-bak

[root@support exim]# cd db/

We will remove all the files currently existing in the folder.

[root@support db]#  rm -rf *

Now restart the exim service so the DB is auto created.

[root@support ~]# /etc/init.d/exim start

The emails should now be working fine on the server !

The Alternative PHP Cache (APC) is a free and open opcode cache for PHP. Its goal is to provide a free, open, and robust framework for caching and optimizing PHP intermediate code. Apart from caching opcode cache it provides a user cache for storing application data.

Installing APC on cPanel server :

Before installing APC on the server ensure eAccelerator is enabled on the server .

root@server [~]# php -m | grep eAccelerator
eAccelerator

Now lets install APC on the server . Follow the following commands on the server :

root@mailspec [~]# cd /usr/local/src

root@mailspec [~]# wget http://pecl.php.net/get/APC-3.0.19.tgz

root@mailspec [~]# tar -xzf APC-3.0.19.tgz && cd APC-3.0.19

root@mailspec [~]# phpize && ./configure –enable-apc –enable-apc-mmap –with-apxs=/usr/local/apache/bin/apxs –with-php-config=/usr/local/bin/php-config && make && make install

This should now configure APC and install it in your extension directory.

root@mailspec [~]# cd /usr/local/lib/php/extensions/no-debug-non-zts-200XXXX

You can locate a  file named apc.so in that directory.

You can now locate an entry for apc.so in the file /usr/local/lib/php.ini.

extension=”apc.so”

If you want to view APC interface via browser you can copy the file /usr/lib/php/apc.php into your sites documentroot path and access it via the browser. Ensure GD is installed on the server to view APC interface via the browser.

You can try accessing the URL:: http://domain.com/apc.com to view the interface

(replace the domain.com with your original domain name )

It will show you interface similar as follows :

You can correct these IP’s simple with following:

1 ) Check the file /etc/nameserverips. It should show you something as follows:

10.1.1.1=ns1.domain.com

10.1.1.2=ns2.domain.com

Correct the entries here if the entries are not as per expectation.

2)Now open the file /var/cpanel/nameserverips.yaml.

It should display you settings as follows

—

ns1.domain.com: “10.1.1.1″: 1
count: ’1′ zones:
domain.com
ns2.domain.com: “10.1.1.2″: 1
count: ’1′
zones: domain.com

Edit the settings here as well if they are incorrect. Once done restart the cPanel service .

Now check the nameserver IP’s from WHM>> Main >> DNS Functions >> Nameserver IPs.  It should now be corrected.

1) Open the file /etc/hosts and edit the hostname entry as follows in the file (Eg: hostname= server.example.com)

# Auto-generated hostname. Please do not remove this comment.

127.0.0.1 localhost.localdomain localhost
XX.XX.XX.XX server.example.com server

XX.XX.XX.XX — servers IP.

2) Now open the file /etc/sysconfig/network and edit the hostname entry in this file:

NETWORKING=”yes”
HOSTNAME=”server.example.com”
GATEWAY=”xx.xx.xx.xx”
GATEWAYDEV=”eth0″
FORWARD_IPV4=”yes”

3) Now open the file /var/qmail/control/me  which contains the old hostname. Alter it to new hostname to make qmail identify itself  with  the new hostname.

server.example.com

4)Set the servers hostname in the plesk database with the following commands:

# mysql -u admin -p

Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 181
Server version: 5.1.50 Source distribution

Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL v2 license

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.

mysql> use psa;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> update misc set val=’server.example.com’ where param=’FullHostName’;
Query OK, 0 rows affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> quit

5) Now restart Plesk  service to activate the changes:

# /etc/init.d/psa stopall

# /etc/init.d/psa stop

# /etc/init.d/psa start

Now check the servers hostname. It should now be configured with the new hostname.