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ISP Server Tools included or available with every turnkey ISP network package

Family Filter · Server-side "sewage" filter provides a balance of Freedom and Safety on the Internet.

ISP Ltd. Family Filter

For ISPs who acknowledge the desperate need in society to have a child-safe, family-oriented, and/or God-honouring service — whether Christian, Jewish, or Muslim, we all share a common goal in this regard.

The Family Filter is eliminates offensive web sites at the server, and to a lesser degree pornography-spreading e-mail servers, providing a safer and more enjoyable experience for the whole family.

See complete information on on this page.

Stapler · DNS management of servers and domains

ispltd stapler

Stapler keeps all information in simple ASCII files which can be managed with any text editor. Manages server names, IP addresses, domain names, and CNAME aliases. Comments may be inserted into any of the files to keep everything organized. Never again will you miss a serial number, machine name, or accidentally erase a subdomain alias or other information.

Stapler creates all zone and configuration files for master and slave name servers.

  • Unlimited number of domains
  • Unlimited number of network segments (subnets)
  • Unlimited number of aliases (subdomains)
  • Manages up to five DNS and four main mail servers per network, plus unique settings on a per-domain basis
  • Allows you to quickly reset global timing values (TTL and Refresh) across all domains to facilitate testing or in anticipation of IP netblock changes
  • Domains inherit default server settings or can have custom definitions on a domain-by-domain basis
  • CLI does not require GUI and can be accessed remotely via secure shell
Turnstile graphic

Turnstile · ISP Firewall

An ISP needs a different firewall than a home or corporate user. A consumer-grade firewall will make easy prey of an ISP for teenage hackers. ISP-grade firewalls are generally so expensive that only large ISPs can afford them, so the small ISP is left without any good options.

The Turnstile packet-filtering firewall is the exception. Turnstile is designed specifically for ISPs and tested on ISPs in North America and Africa. It is a complex set of rules based on the traditional Good/Bad/DMZ firewall model that allows for up to 11 network interfaces.

Turnstile is standard equipment with every ISP Ltd. system, so even the smallest ISP can have decent protection for their servers.

DSPAM · adaptive, scalable, content-based spam filter

DSPAM is a scalable content-based spam filter designed for multi-user enterprise systems. On a properly configured system, many users experience results between 99.5% - 99.95%, or one error for every 200 to 2000 messages.

The DSPAM project attempts to set itself apart from other filters by focusing on the following areas:

  • DSPAM has a strong drive for research. Many new algorithms and approaches to fighting spam have come out of the DSPAM project. Some of the approaches deployed in DSPAM include Concept Identification, Neural Networking, Message Inoculation , advanced de-obfuscation techniques, and a new noise reduction algorithm called Bayesian Noise Reduction. DSPAM also supports many different mathematical paradigms including Bayes, Chi-Square, Geometric, and Markovian Discrimination.
  • A strong focus on large-scale implementation support. The largest implementation of DSPAM we've heard about to-date involves 350,000 users, with the next largest being around 125,000, then 100,000. DSPAM has been designed to run with a very short execution time (between 0.01s - 0.03s real time for classification and between 0.03s - 0.10s real time for training, on average hardware), and has been equipped with a storage driver API allowing several different storage mechanisms to be used.
  • Usability. DSPAM was designed with "grandma" in mind. Users can retrain by either forwarding any spam they receive to a spam address, or use the web UI to quickly mark spam and deliver false positives. DSPAM can also be integrated with IMAP solutions to provide a drag-and-drop spam folder for training. End-users don't need to know any commandline utilities or other complexities plaguing some other such tools. Functions such as whitelisting and keyword inventory are automatic (based on DSPAM's statistical functions) and therefore require no user intervention.

Features

  • System-wide administratively-maintenance free filtering. The DSPAM agent can integrate into just about any network and can even be implemented as an SMTP gateway.
  • A simple-to-use learning mechanism. DSPAM allows users to simply forward their spam to their "spam email address" for learning, eliminating any learning curve necessary to make it usable by your customers. The information used in every calculation is temporarily stored on the server, enabling DSPAM to relearn the original message by looking for a small signature in the forwarded spam. As a result, users don't have to be trained to 'bounce' messages around, and administrators don't have to worry about incompatible mail clients.
  • Support for a variety of storage implementations. DSPAM's storage driver API allows the administrator to choose how they wish to store data. Currently supported drivers include SQLite, Berkeley DB, MySQL, PostgreSQL, Oracle, and a self-contained high-speed hash driver.
  • Written in C for speed, performance, and scalability. Unlike Python or PERL solutions, DSPAM is written in a low-level compiled language, meaning there is very little overhead. DSPAM runs fast, efficient, and doesn't depend on any third-party language interpreters.
  • MTA support. DSPAM works great with Sendmail, Postfix, Qmail, Courier, and Exim, and should work well with many other MTAs. In the event you happen to run something like Exchange, DSPAM can be implemented on your network as an SMTP gateway. Just point your MX at it and configure it to relay to your mail server.