High reliability web server - cluster, redundancy, etc Post: 302302261

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Special Forums UNIX and Linux Applications High Performance Computing High reliability web server - cluster, redundancy, etc Post 302302261 by kipperjp on Monday 30th of March 2009 01:38:16 PM

03-30-2009

Registered User

Keep in mind that clustering does not mean high availability. CLustering is sharing resources with multiple machines. What you need to look into is syncing and failover mechanisms so that 2 web servers at different locations are mirrored copies so that if one goes down, dns is routed to the other server.

I am kind of down this route myself and learning as I go. Be nice to utilize an HA consultant as trial and error can be costly.

kipperjp

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polygraph-dns-cfg

POLYGRAPH-DNS-CFG(1)						   User Commands					      POLYGRAPH-DNS-CFG(1)

NAME

       polygraph-dns-cfg - DNS server configuration tool

SYNOPSIS

       dns-cfg [--option ...]

DESCRIPTION

       Given  a  zone  name, DNS names, and IP addresses, dns-cfg builds configuration suitable for use with BIND and, perhaps, other DNS servers.
       Dns-cfg output consists of three parts. The first part is the text to cut-and-paste into BIND's named.conf file. This part is sent  to  the
       standard  output. The outer two parts are direct and reverse zone files. Those may be quite large and are dumped on disk into the appropri-
       ately named files. Dns-cfg can use PGL configuration as the source of information.

OPTIONS

       --help list of options

       --version
	      package version info

       --config <filename>
	      PGL configuration

       --cfg_dirs <dirs>
	      directories for PGL #includes

       --zone <str>
	      zone name

       --addresses <str>
	      IP addresses

       --names <str>
	      domain names

COPYRIGHT

       Copyright (C) 2003-2006 The Measurement Factory, Inc.

SEE ALSO

       polygraph(7) - general information and a list of programs

       http://www.web-polygraph.org/ - project web site

polygraph-dns-cfg - Web Polygraph				   February 2010					      POLYGRAPH-DNS-CFG(1)