What is smap and where can I get it?
Smap (and smapd) are tools out of the Trusted Information Systems (TIS) Firewall Toolkit (fwtk). They were originally written by firewall expert Marcus Ranum under contract to TIS, and TIS is continuing what maintenance there is. Here is a link to the toolkit. Support questions regarding the toolkit may be sent to fwall-support@tis.com, while you may join their mailing list fwall-users@tis.com by sending electronic mail to fwall-users-request@tis.com. The concept of smap and smapd is that sendmail is a huge, monolithic setuid root program that is virtually impossible to verify as being “correct” and free from bugs (historically, sendmail has been rather buggy and an easy mark for system crackers to exploit, although with the advent of version 8 sendmail, this becomes much more difficult).
Smap (and smapd) are tools out of the Trusted Information Systems (TIS) Firewall Toolkit (fwtk). They were originally written by firewall expert Marcus Ranum under contract to TIS, and TIS is continuing what maintenance there is. Here is a link to the toolkit. Support questions regarding the toolkit may be sent to fwall-support@tis.com, while you may join their mailing list fwall-users@tis.com by sending electronic mail to fwall-users-request@tis.com. The concept of smap and smapd is that sendmail is a huge, monolithic setuid root program that is virtually impossible to verify as being “correct” and free from bugs (historically, sendmail has been rather buggy and an easy mark for system crackers to exploit, although with the advent of version 8 sendmail, this becomes much more difficult). In contrast, smap and smapd are very small (only a few hundred lines long), and relatively easy to verify as being correct and functioning as designed (however, as you will see later, we can question
