I'm trying to install webmin , amavsid-new by using yum install xxxxxx


But it can't find any package and there is the message:

....
....
Reading repository metadata in from local files
Parsing package install agruments
No Match for argument: amavsid-new
Nothing to do

And I try this with webmin and postfix. The samething happen..

I only have the CentOS-Base.repo and CentOS-Media.repo file in the /etc/yum.repos.d folder.

Do I need to modify my repo file?

Becuase I'm pretty new. And don't don't how to install softwares from a gz files

My CentOs machine isn't up just yet, but from memory, there didn't seem to be an rpm for amavisd and perhaps not Webmin either.

Building from source isn't hard. Download the package to /usr/source (you can do this by cd'ing to /usr/src then wget the tarzip (ie wget http://something).

Untar the package with tar -xvzf packagename

cd into new package directory.

read the README file and any other interesting looking test files, but typical install procedure is to type

./configure
make
make install

and then configure the package. You may find you need to copy the basic config file to /etc and a suitable startup script (hopefully supplied in the package) to /etc/rc.d/init.d and use chkconfig --add to add the startup file to chkconfig from which you can then turn in on.

That should be about it.

You are right, CentOS does not ship with webmin and I am sure it does not have amavisd. If you want to use webmin, then install the rpm from webmin.com.