Wells Fargo Linux Forum March 22, 2001 - PowerPoint PPT Presentation

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Wells Fargo Linux Forum March 22, 2001

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Wells Fargo Linux Forum March 22, 2001 FreeBSD in Enterprise Environments Murray Stokely Outline Key differences to Linux Key differences to ... – PowerPoint PPT presentation

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Title: Wells Fargo Linux Forum March 22, 2001


1
Wells Fargo Linux ForumMarch 22, 2001
FreeBSD in Enterprise Environments Murray
Stokely ltmurray_at_freebsd.orggt
2
Outline
  • Key differences between FreeBSD and Linux
  • Strengths of FreeBSD
  • Reliability / Stability
  • Performance
  • Security
  • Total Cost of Ownership
  • Conclusions

3
Key differences to Linux
  • History
  • Began at U.C. Berkeley over 20 years ago.
  • Initial implementors of key Unix concepts such as
    sockets, virtual memory, and TCP/IP
  • Licensing model
  • Open source since day 1 but users who extend the
    system are not obligated to release their
    changes.
  • Allows BSD in proprietary applications embedded
    products, satellites, etc.

4
Key differences to Linux
  • Development Organization
  • Complete operating system in CVS repository. 260
    primary developers with write access.
  • Complete OS
  • Source code to the kernel, all of the libraries
    and user applications are kept in CVS.
  • With one command, "make world" the entire
    operating system can be rebuilt and reinstalled.

5
Key differences to Linux
  • Packaging System
  • Over 4,600 binary packages
  • /usr/ports automatic package compilation system
  • Configuration / Administration
  • Administration of FreeBSD is consistent with over
    20 years of development.
  • Different Linux distributions configured
    differently. Most lack consistency within a
    given distribution.

6
Reliability
  • Development infrastructure prevents poorly
    thought out subsystems from entering the system.
  • Berkeley Fast Filesystem with Soft Updates
  • Guarantees consistency
  • Eliminates most synchronous writes
  • Allows fsck-less booting
  • Logical volume management and software RAID

7
High Availability
  • Clustering / High Availability Solutions
  • http//www.polyserve.com/freebsd
  • Customers using FreeBSD in mission-critical
    environments.
  • Yahoo!, Juniper, Nokia, UUNet, Demon
  • Bank of America / Nations Bank
  • Xoom.com, Qwest, Easynet, Apache, Netcraft
  • Etc..

8
Performance
  • Gartner Group study found FreeBSD 20-30 faster
    than Linux running on identical hardware.
  • Fine grained SMP and fully preemptable kernel
    (5.0)
  • Performance between Linux and FreeBSD is rapidly
    converging as new ideas are shared between the
    projects.

9
Security
  • Extensive code auditing
  • Virtual Server Environments (Jails)
  • POSIX.1e Support
  • Mandatory Access Controls
  • Access Control Lists
  • Advanced firewall subsystem
  • "Secure by default"

10
Security
  • BSD Unix systems are rarely affected by CERT
    advisories
  • 7 CERT advisories affected Linux in 2000.

11
Applications
  • Linux Binary Compatibility
  • Solaris/x86, SCO Binary Compatibility
  • BSD/OS, NetBSD Binary Compatibility
  • FreeBSD Ports Collection
  • Most TCP/IP network applications were invented on
    BSD Unix.

12
Support
  • 24 x 7 Support from BSDi
  • Per-incident or support contracts
  • Highly qualified support technicians knowledgable
    about every major BSD subsystem.

13
Price and TCO
  • Extreme price/performance advantage of PC
    hardware.
  • Single processor 1U servers for lt 1000
  • Dual processor 1U servers for lt 2000
  • Extensive online support forums / community
  • Reliability Consistency Easy Administration
  • Professional Support available when needed

14
Quote
  • "Flexibility, in-house expertise,
    price/performance, and manageability," says Filo.
    "Those are just a few of the reasons why the
    Intel Architecture and FreeBSD appeal to us. By
    combining these platforms, we're able to deliver
    better, faster, and more innovative solutions
    than our competitors." -David Filo, Chief Yahoo!
  • http//www.intel.com/ebusiness/casestudies/yahoo/b
    uscase.htm

15
Conclusion
  • FreeBSD has a very mature code base
  • FreeBSD's development model enables a very stable
    platform.
  • FreeBSD has been extensively reviewed by security
    experts, and has an excellent track record with
    its (lack-of) security exploits.
  • FreeBSD's release engineering environment makes
    it very easy to administer.

16
References
  • BSDi (http//www.bsdi.com)
  • The FreeBSD Project (http//www.FreeBSD.org)
  • PolyServe Clustering (http//www.polyserve.com/fre
    ebsd)
  • TrustedBSD Project (http//www.TrustedBSD.org)
  • CERT (http//www.cert.org)
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