| Understudy provides front-end IP service monitoring for HTTP, SMTP, FTP and TCP. Understudy detects failure of any of these IP Services or of the server itself, initiates an automatic failover to an alternate host and provides for economical and straightforward load balancing via its "virtual host" approach with DNS round-robin. A free 30-day eval is available for download on www.polyserve.com. Understudy is available for: RedHat, SuSE, Debian, Slackware and Cobalt versions of Linux. In addition, Understudy is available for FreeBSD, Solaris and NT. Understudy is ideal for the creation of highly available Apache webservers, DNS servers, FTP servers and more. |