CentOS4.4（32位）完美安装过程

Set the hostname manually, e.g. server1.example.com, and enter a gateway (e.g. 192.168.0.1) and up to three DNS servers (e.g. 145.253.2.75, 193.174.32.18, and 194.25.0.60):

I want to install ISPConfig at the end of this tutorial which comes with its own firewall. That's why I disable the default CentOS firewall now. Of course, you are free to leave it on and configure it to your needs (but then you shouldn't use any other firewall later on as it will most probably interfere with the CentOS firewall).

SELinux is a security extension of CentOS that should provide extended security. In my opinion you don't need it to configure a secure system, and it usually causes more problems than advantages (think of it after you have done a week of trouble-shooting because some service wasn't working as expected, and then you find out that everything was ok, only SELinux was causing the problem). Therefore I disable it (this is a must if you want to install ISPConfig later on).

Click on Proceed:

Select the default language for the system and add further languages, if necessary:

Choose your time zone:

Give root a password:

Now we are to select the package groups we want to install. Select Editors, Text Based Internet, Server Configuration Tools, Web Server, Mail Server, DNS Name Server, FTP Server, MySQL Database, Development Tools, Administration Tools and System Tools and click on Next:

The installer tells you which CDs it will need to install the selected packages:

The installation begins. This will take a few minutes:

Finally, the installation is complete, and you can remove your CD from the computer and reboot it:

Now, on to the configuration...

2 Adjust /etc/hosts

Next we edit /etc/hosts. Make it look like this:

vi /etc/hosts

# Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost.localdomain localhost 192.168.0.100 server1.example.com server1

3 Configure Additional IP Addresses

(This section is totally optional. It just shows how to add additional IP addresses to your network interface eth0 if you need more than one IP address. If you're fine with one IP address, you can skip this section.)

Let's assume our network interface is eth0. Then there is a file /etc/sysconfig/network-scripts/ifcfg-eth0 which looks like this:

vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0 BOOTPROTO=static BROADCAST=192.168.0.255 HWADDR=00:0C:29:C8:AA:7C IPADDR=192.168.0.180 NETMASK=255.255.255.0 NETWORK=192.168.0.0 ONBOOT=yes TYPE=Ethernet

Now we want to create the virtual interface eth0:0 with the IP address

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