Red Hat Linux Itanium 7.2 Manuel d'utilisateur télécharger pdf (Page 44)

44 Chapter 3:Installing Red Hat Linux

Figure 3–10 Firewall Configuration

High

If you choose High, your system will not accept connections (other than the default settings)

that are not explicitly defined by you. By default, only the following connections are allowed:

• DNS replies

• DHCP — so any network interfaces that use DHCP can be properly configured

If you choose

High, your firewall will not allow the following:

• Active mode FTP (passive mode FTP, used by default in most clients, should still work)

• IRC DCC file transfers

• RealAudio™

• Remote X Window System clients

If you are connecting your system to the Internet, but do not plan to run a server, this is the safest

choice. If additional services are needed, you can choose

Customize to allow specific services

through the firewall.

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Red Hat Linux Itanium 7.2 Manuel d'utilisateur Page 44