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9b26804b58
Added more text to the "README-SGML" document on how to set up environment on FreeBSD. Still need to do NetBSD.
310 lines
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5.3 KiB
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310 lines
No EOL
5.3 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>BIND Resource Requirements</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.57"><LINK
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REL="HOME"
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HREF="Bv9ARM.html"><LINK
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REL="PREVIOUS"
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TITLE="Introduction "
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HREF="Bv9ARM.ch01.html"><LINK
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REL="NEXT"
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TITLE="Nameserver Configuration"
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HREF="Bv9ARM.ch03.html"></HEAD
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><BODY
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CLASS="chapter"
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#840084"
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="Bv9ARM.ch01.html"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="Bv9ARM.ch03.html"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="chapter"
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><H1
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><A
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NAME="ch02"
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>Chapter 2. <SPAN
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CLASS="acronym"
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>BIND</SPAN
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> Resource Requirements</A
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></H1
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><DIV
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CLASS="TOC"
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><DL
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><DT
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><B
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>Table of Contents</B
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></DT
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><DT
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>2.1. <A
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HREF="Bv9ARM.ch02.html#AEN230"
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>Hardware requirements</A
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></DT
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><DT
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>2.2. <A
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HREF="Bv9ARM.ch02.html#AEN238"
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>CPU Requirements</A
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></DT
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><DT
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>2.3. <A
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HREF="Bv9ARM.ch02.html#AEN242"
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>Memory Requirements</A
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></DT
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><DT
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>2.4. <A
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HREF="Bv9ARM.ch02.html#AEN247"
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>Nameserver Intensive Environment Issues</A
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></DT
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><DT
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>2.5. <A
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HREF="Bv9ARM.ch02.html#AEN250"
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>Supported Operating Systems</A
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></DT
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></DL
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></DIV
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><DIV
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CLASS="sect1"
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><H1
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CLASS="sect1"
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><A
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NAME="AEN230"
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>2.1. Hardware requirements</A
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></H1
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><P
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><SPAN
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CLASS="acronym"
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>DNS</SPAN
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> hardware requirements have traditionally been quite modest.
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For many installations, servers that have been pensioned off from
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active duty have performed admirably as <SPAN
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CLASS="acronym"
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>DNS</SPAN
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> servers.</P
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><P
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>The DNSSEC and IPv6 features of <SPAN
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CLASS="acronym"
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>BIND</SPAN
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> 9 may prove to be quite
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CPU intensive however, so organizations that make heavy use of these
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features may wish to consider larger systems for these applications.
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<SPAN
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CLASS="acronym"
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>BIND</SPAN
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> 9 is now fully multithreaded, allowing full utilization of
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multiprocessor systems for installations that need it.</P
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></DIV
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><DIV
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CLASS="sect1"
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><H1
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CLASS="sect1"
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><A
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NAME="AEN238"
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>2.2. CPU Requirements</A
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></H1
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><P
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>CPU requirements for <SPAN
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CLASS="acronym"
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>BIND</SPAN
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> 9 range from i486-class machines
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for serving of static zones without caching, to enterprise-class
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machines if you intend to process many dynamic updates and DNSSEC
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signed zones, serving many thousands of queries per second.</P
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></DIV
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><DIV
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CLASS="sect1"
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><H1
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CLASS="sect1"
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><A
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NAME="AEN242"
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>2.3. Memory Requirements</A
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></H1
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><P
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>The memory of the server has to be large enough to fit the
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cache and zones loaded off disk. Future releases of <SPAN
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CLASS="acronym"
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>BIND</SPAN
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> 9 will
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provide methods to limit the amount of memory used by the cache,
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at the expense of reducing cache hit rates and causing more <SPAN
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CLASS="acronym"
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>DNS</SPAN
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>
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traffic. It is still good practice to have enough memory to load
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all zone and cache data into memory — unfortunately, the best way
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to determine this for a given installation is to watch the nameserver
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in operation. After a few weeks the server process should reach
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a relatively stable size where entries are expiring from the cache as
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fast as they are being inserted. Ideally, the resource limits should
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be set higher than this stable size.</P
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></DIV
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><DIV
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CLASS="sect1"
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><H1
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CLASS="sect1"
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><A
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NAME="AEN247"
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>2.4. Nameserver Intensive Environment Issues</A
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></H1
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><P
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>For nameserver intensive environments, there are two alternative
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configurations that may be used. The first is where clients and
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any second-level internal nameservers query a main nameserver, which
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has enough memory to build a large cache. This approach minimizes
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the bandwidth used by external name lookups. The second alternative
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is to set up second-level internal nameservers to make queries independently.
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In this configuration, none of the individual machines needs to
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have as much memory or CPU power as in the first alternative, but
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this has the disadvantage of making many more external queries,
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as none of the nameservers share their cached data.</P
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></DIV
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><DIV
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CLASS="sect1"
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><H1
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CLASS="sect1"
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><A
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NAME="AEN250"
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>2.5. Supported Operating Systems</A
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></H1
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><P
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>ISC <SPAN
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CLASS="acronym"
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>BIND</SPAN
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> 9 compiles and runs on the following operating
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systems:</P
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><P
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></P
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><UL
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><LI
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><P
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>IBM AIX 4.3</P
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></LI
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><LI
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><P
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>Compaq Digital/Tru64 UNIX 4.0D</P
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></LI
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><LI
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><P
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>HP HP-UX 11</P
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></LI
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><LI
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><P
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>IRIX64 6.5</P
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></LI
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><LI
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><P
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>Red Hat Linux 6.0, 6.1</P
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></LI
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><LI
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><P
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>Sun Solaris 2.6, 7, 8 (beta)</P
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></LI
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><LI
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><P
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>FreeBSD 3.4-STABLE</P
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></LI
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><LI
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><P
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>NetBSD-current with "unproven" pthreads</P
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></LI
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></UL
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></DIV
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="Bv9ARM.ch01.html"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
|
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="Bv9ARM.html"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
|
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="Bv9ARM.ch03.html"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
|
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ALIGN="left"
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VALIGN="top"
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>Introduction</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
|
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VALIGN="top"
|
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> </TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>Nameserver Configuration</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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> |