> # prevent people using the EXPN and VRFY commands
> O PrivacyOptions=goaway
is it implemented in 8.8.8 sendmail only?
> # to use tcp-wrappers and hosts.allow / hosts.deny, recompile after
> # modifying the makefile in sendmail-8.8.8/src/Makefiles/Makefile.your-os
> LIBS= -lwrap
> ENVDEF= -DTCPWRAPPERS
>
>
> /etc/hosts.allow
> sendmail: .your.domain EXCEPT spam.net
will those two changes reject SMTP connections from spam.net hosts?
hmm.. would it work with 8.8.6/8.7.3 sendmail?
hmm.. and i am surprised it would work, if you run sendmail as daemon.
AFAiK hosts.allow|deny files are used by inetd. daemon for checkin' its
services.. or i am mistaking here?
> #remove the version number, obscurity
> O SmtpGreetingMessage=$j Mailer ; $b
yeah, usually helps to fool intruders about your Sendmail version.
---
Fyodor Yarochkin email:fygrave @
usa .
net
http://www.tigerteam.net/linuxgroup/ tel:(3312) 474465
"Optima philosophia et sapientia est meditatio mortis."
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