Transcript PowerPoint - FreeBSD.org

Wells Fargo Linux Forum
March 22, 2001
FreeBSD in Enterprise Environments
Murray Stokely
<[email protected]>
March 22, 2001
Outline
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Key differences between FreeBSD and Linux
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Strengths of FreeBSD
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Reliability / Stability
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Performance
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Security
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Total Cost of Ownership
Conclusions
March 22, 2001
Key differences to Linux
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History
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Began at U.C. Berkeley over 20 years ago.
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Initial implementors of key Unix concepts such as
sockets, virtual memory, and TCP/IP
Licensing model
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Open source since day #1 but users who extend the
system are not obligated to release their changes.
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Allows BSD in proprietary applications; embedded
products, satellites, etc.
March 22, 2001
Key differences to Linux
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Development Organization
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Complete operating system in CVS repository. 260
primary developers with write access.
Complete OS
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Source code to the kernel, all of the libraries and user
applications are kept in CVS.
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With one command, "make world" the entire
operating system can be rebuilt and reinstalled.
March 22, 2001
Key differences to Linux
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Packaging System
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Over 4,600 binary packages
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/usr/ports automatic package compilation system
Configuration / Administration
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Administration of FreeBSD is consistent with over 20
years of development.
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Different Linux distributions configured differently.
Most lack consistency within a given distribution.
March 22, 2001
Reliability
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Development infrastructure prevents poorly
thought out subsystems from entering the system.
Berkeley Fast Filesystem with Soft Updates
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Guarantees consistency
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Eliminates most synchronous writes
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Allows fsck-less booting
Logical volume management and software RAID
March 22, 2001
High Availability
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Clustering / High Availability Solutions
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http://www.polyserve.com/freebsd
Customers using FreeBSD in mission-critical
environments.
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Yahoo!, Juniper, Nokia, UUNet, Demon
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Bank of America / Nations Bank
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Xoom.com, Qwest, Easynet, Apache, Netcraft
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Etc..
March 22, 2001
Performance
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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.
March 22, 2001
Security
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Extensive code auditing
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Virtual Server Environments (Jails)
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POSIX.1e Support
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Mandatory Access Controls
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Access Control Lists
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Advanced firewall subsystem
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"Secure by default"
March 22, 2001
Security
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BSD Unix systems are rarely affected by CERT
advisories
7 CERT advisories affected Linux in 2000.
March 22, 2001
Applications
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Linux Binary Compatibility
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Solaris/x86, SCO Binary Compatibility
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BSD/OS, NetBSD Binary Compatibility
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FreeBSD Ports Collection
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Most TCP/IP network applications were invented
on BSD Unix.
March 22, 2001
Support
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24 x 7 Support from BSDi
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Per-incident or support contracts
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Highly qualified support technicians
knowledgable about every major BSD subsystem.
March 22, 2001
Price and TCO
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Extreme price/performance advantage of PC
hardware.
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Single processor 1U servers for < $1000
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Dual processor 1U servers for < $2000
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Extensive online support forums / community
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Reliability + Consistency = Easy Administration
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Professional Support available when needed
March 22, 2001
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/buscase.htm
March 22, 2001
Conclusion
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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.
March 22, 2001
References
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BSDi (http://www.bsdi.com)
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The FreeBSD Project (http://www.FreeBSD.org)
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PolyServe Clustering
(http://www.polyserve.com/freebsd)
TrustedBSD Project
(http://www.TrustedBSD.org)
CERT (http://www.cert.org)
March 22, 2001