红帽4 64位下载地址
ftp://166.111.121.3/Linux/RedHat/RHEL4.U4.X86_64/rhel4-u4-x86_64-as-disc1.iso
ftp://166.111.121.3/Linux/RedHat/RHEL4.U4.X86_64/rhel4-u4-x86_64-as-disc2.iso
ftp://166.111.121.3/Linux/RedHat/RHEL4.U4.X86_64/rhel4-u4-x86_64-as-disc3.iso
ftp://166.111.121.3/Linux/RedHat/RHEL4.U4.X86_64/rhel4-u4-x86_64-as-disc4.iso
找个很久才找到，希望对需要的人有帮助。