01-11-2008
I ran a top to see running processes and it looks like qmail. Though I thought qmail used sendmail somehow. Could be wrong though.... I'm okay with UNIX but only mostly for web server things. (Apache, MySQL, PHP...) I'm new to security and mail server testing/repair/hardening so I'm at a standstill. I made a few changes to the sendmail.cf file and one of the qmail files to throttle the connection rate and to pause 5 seconds before returning GREET. After switching Port 25 back on today the relays are no longer being passed on (I think...). My SMTP server is still being bombarded with connection requests so I'm not sure if I've completely resolved this or if I need to look elsewhere for connection restrictions. The connection attempt rate has, at times, approached 1.07 connections per second!
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LEARN ABOUT DEBIAN
authen::simple::smtp
Authen::Simple::SMTP(3pm) User Contributed Perl Documentation Authen::Simple::SMTP(3pm)
NAME
Authen::Simple::SMTP - Simple SMTP authentication
SYNOPSIS
use Authen::Simple::SMTP;
my $smtp = Authen::Simple::FTP->new(
host => 'smtp.company.com'
);
if ( $smtp->authenticate( $username, $password ) ) {
# successfull authentication
}
# or as a mod_perl Authen handler
PerlModule Authen::Simple::Apache
PerlModule Authen::Simple::SMTP
PerlSetVar AuthenSimpleSMTP_host "smtp.company.com"
<Location /protected>
PerlAuthenHandler Authen::Simple::SMTP
AuthType Basic
AuthName "Protected Area"
Require valid-user
</Location>
DESCRIPTION
Authenticate against a SMTP service.
METHODS
* new
This method takes a hash of parameters. The following options are valid:
* host Connection host, can be a hostname or IP number. Defaults to "localhost".
host => 'ftp.company.com'
host => '10.0.0.1'
* port Connection port, default to 25.
port => 25
* timeout
Connection timeout, defaults to 60.
timeout => 60
* log Any object that supports "debug", "info", "error" and "warn".
log => Log::Log4perl->get_logger('Authen::Simple::SMTP')
* authenticate( $username, $password )
Returns true on success and false on failure.
SEE ALSO
Authen::Simple.
Net::SMTP.
AUTHOR
Christian Hansen "ch@ngmedia.com"
COPYRIGHT
This program is free software, you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.8.8 2008-03-01 Authen::Simple::SMTP(3pm)