Do you find that your VPS or dedicated machine is regularly running out of memory because of cPanel? The following tutorial will help you overcome this, and help you to make your machine run faster.

Stopping SpamAssassin

This program isn’t overly important to the stopping of spam. To turn it off do the following:

Go to WHM > Server Configuration > Tweak Settings > Disable Spamd

And:

Go to WHM > Service Manager > Disable Spamd

Stopping Mailman

If you or none of your customers aren’t running any mail listings through cPanel, it would be a good idea to disable Mailman.

Go to WHM > Server Configuration > Tweak Settings > Disable Mailman

Never Use Tomcat on a VPS

Never run TomCat on a VPS because of it’s high RAM needs.

Disable CatchAll

If you’re undergoing a mail attack, catch all can use up many resources + storage. To disable do the following:

Go to WHM > Server Configuration > Tweak Settings > Change to :fail:

Tweak Apache

Apache can be quite a memory consuming monster on it’s own. To tweak, do the following:

vi /etc/httpd/conf/httpd.conf

(Press ’shift’ and ‘i’ to enable inserting/editing.)

Change the following settings:

MinSpareServers 2
MaxSpareServers 5

StartServers 3

Save the file by pressing ‘esc’, then type ‘:wq:’, then hit return.

After that, restart Apache: /etc/init.d/httpd restart

All that should reduce your memory useage by a large amount.

It is a UNIX O.S. which was put forward by HP which lies on the basis on system V. It is compatible with Intel’s Itanium processor, PA-RISC processors and Apollo systems. Its features include accessing the control lists for file access permissions, in-built logical volume manger.

Hi Performance FileSystem uses the file system which is used for booting the kernel and it also receives technical support from HP.

A forth-coming generator to Minix which was developed at Vrijie University in Amsterdam, it is basically an open source operating system. It containssome additional features (e.g. – X windows system and virtual memory). Its main aim is to meet specific needs in a similar way Linux does, and its resource usage is comparatively low.

The name is derived from its authors – Alfred Aho, Peter Weinberger and Brian Kernighan, it is basically a computer language which is mainly designed in order to process text data in data streams or files.

It is a type of a programming language which uses associative arrays, string datatypes and regular expressions. This language is used to write one-line programs. It was known as additional computational features to a UNIX pipeline. It is now a necessary utility of a UNIX O.S. and it is the only other scripting language available in a UNIX surrounding.

Hello Friends,

 Following are the commands to open tcp or udp ports on the server.

Before using commands for opening the port please make sure the specific port is already opend and what is the use of that port.

you can verify the port with

netstat -nap | grep : <port no>

1.you can open TCp port with

iptables -A INPUT  -p tcp –dport <port no> -j ACCEPT

2. You can open UDP port with

iptables -A INPUT -p udp –sport <port no>  -j ACCEPT 

 after that

3 service iptables save

and for flushhing iptables us

iptables -F 

Hello Friends,

Following are the commands to open tcp or udp ports on the server.

Before using commands for opening the port please make sure the specific port is already opend and what is the use of that port.

you can verify the port with

netstat -nap | grep :

1.you can open TCp port with

iptables -A INPUT -p tcp –dport
-j ACCEPT

2. You can open UDP port with

iptables -A INPUT -p udp –sport
-j ACCEPT

after that

3 service iptables save

and for flushhing iptables us

iptables -F

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