CentOS 是 RHEL(Red Hat Enterprise Linux)源代码再编译的产物,而且在 RHEL 的基础上修正了不少已知的 Bug ,相对于其他 Linux 发行版,其稳定性值得信赖。CentOS是一个开源软件贡献者和用户的社区。典型的CentOS用户包括这样一些组织和个人,他们并不需要专门的商业支持就能开展成功的业务。CentOS是Red Hat Enterprise Linux的100%兼容的重新组建,并完全符合Red Hat的再发行要求。CentOS面向那些需要企业级操作系统稳定性的人们,而且并不涉及认证和支持方面的开销。
现在CentOS 4.7的i386和x86_64两个版本都已经发布了,你可以在官方的可用镜像列表中选择一个合适的镜像站点(http://isoredirect.centos.org/centos/4.7/isos/)来下载CentOS 4.7。当然,如果你已经使用了一个相对旧一点的CentOS 4版本,你可以用”yum upgrade”命令来升级系统。
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CentOS 4.7主要有以下变化:
Password hashing using the SHA-256 and SHA-512 hash functions is now
supported
This update implements the use of paravirtualized block device and
network drivers, which improve the performance of fully-virtualized
guests
There is a technology preview of OpenOffice-2.0 included in the
updates directory
The divider=[value] option is a kernel command-line parameter that
allows you to adjust the system clock rate while maintaining the same
visible HZ timing value to user space applications
Firefox is now rebased to version 3.0.x
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