RedHat and RedFlag comparison

1. Security RedHatEnterpriseLinux4 has passed the EAL4 + internationally recognized security level certification, and RedFlag has not passed the certification. 3. The top three core contribution of the core development force. The development strength of RedHat in Linux kernel is an absolute advantage among all Linux companies. Nearly 100 people focused on the development of core (kernel) technologies and contributed to the needs of a large number of enterprises, including LVM, SELinux,

1. Security

Red Hat Enterprise Linux 4 has passed the EAL4 + internationally recognized security level certification,

Red Flag does not pass authentication.

3. core development strength

The top three core contributions are provided.

Red Hat's development strength in the Linux core (kernel) has an absolute advantage among all Linux companies. Nearly 100 people focused on the development of core (kernel) technologies and contributed to the needs of many enterprises, including LVM, SELinux, ext3, vfs, NPTL, Tux, several SATA drivers, several network drivers,

Kernel 2.6 virtual memory manager, kernel 2.6 CPU scheduler, kernel 2.6 audit subsystem,

SELinux User space tools, IPsec, crypto, netdump and netconsole.

Red Flag does not have a developer in the Linux kernel. All core software packages are copied from open source without any ability to solve core problems.

2. multi-language support

Red Hat Enterprise Linux 4 supports 15 languages and can adapt to local usage requirements in various countries.

Red Flag supports only five languages.

4. CLVM Technology ()

Written in Red Hat Enterprise Linux with CLVM technology and CLVM image function, you can complete cluster LVM management.

Red Flag does not include CLVM technology.

5. Cluster Technology

Red Hat Cluster Suite is a mainstream Cluster management technology developed by Red Hat and jointly developed by Intel, IBM, Oracle, and other companies. Currently, it is the only high-availability cluster software with the first release of DLM technology. It has the best scalability and scalability.

Red Flag still uses the unstable HA technology of the old Heart-beat method and will be eliminated in the future;

6. Online upgrade

In Red Hat Enterprise Linux, you can use the Red Hat Network to implement comprehensive Online upgrade functions, and use the RHN management, deployment, and monitoring functions, complete unified online management and upgrade of the entire enterprise system and real-time status monitoring.

Red Flag only downloads the upgrade package function, and cannot perform online upgrade and unified monitoring for the entire enterprise system.

7. Services and Support

Red Hat has global technical support services and supports 10 different languages to cover every country in the world. In addition, China has 800 technical hotline support and can provide uninterrupted services.

Red Flag does not support 800 calls;

2. Number of CPUs supported

Red Hat Enterprise Linux 4 supports up to 1024 CPUs

Red Flag supports up to 128 CPUs