Perusion is expert in the Internet. Our consultants have worked with networked systems since before the inception of the World Wide Web.

You can order support online to get immediate help from us.

Perusion focuses on database-driven systems with Interchange, Perl, and SQL databases like PostgreSQL, MySQL, and Oracle. We have specific expertise in e-commerce, having written software that powers thousands of sites.

We support the following subsystems completely:

Interchange

Perusion consultant and co-founder Mike Heins wrote Minivend, which became Interchange after acquisition by Akopia and then Red Hat. Mike authored much of the functionality of Interchange, and has produced a number of innovations in the area of database independence, ease of template use, and robustness of database access.

Apache

Perusion has wide experience with Apache and Perusion consultants have worked with members of the core Apache development team. We know mod_perl and have supported Apache on Linux, BSD, Solaris, and other UNIX systems.

MySQL

Perusion MySQL-implemented systems drive sites with millions of page views per month. We can support optimizations and interfaces to Interchange and other SQL systems, including client integration with Windows.

PostgreSQL

Postgres is becoming more and more popular as the basis of robust transaction-oriented systems. Perusion can support integration of Postgres with Interchange, SQL-Ledger, DBI, and mod_perl.

Linux

Linux has become the dominant UNIX type on Intel systems. It powers millions of web sites and hundreds of thousands of server systems. Perusion is expert in the selection, deployment, and support of Linux systems.

Perl

Perl is the leading script language for UNIX applications. Perusion consultants are expert in the support, development, and debugging of scripts and professional-quality applications based on Perl.

Oracle

Perusion database analyst Greg Hanson is an Oracle 8i Certified Professional Database Administrator and supports Oracle for use on Interchange.

Mozilla

Mozilla is the leading WWW browser for Linux and other non-Microsoft systems, and Perusion can support dynamic HTML subsystems that work with Interchange and other database-driven applications to implement complex browser-independent web front-end interfaces.

FreeBSD

FreeBSD is a popular and robust UNIX operating system which drives many network servers. Perusion has implemented Interchange and other software on many FreeBSD systems.

Solaris

Perusion supports Solaris systems for use with Apache, iPlanet, Interchange, and Perl.

DBI

Perusion MySQL-implemented systems drive sites with millions of page views per month. We can support optimizations and interfaces to Interchange and other SQL systems, including client integration with Windows.