Vvc: Initial version

2008-07-10T14:52:25Z

Initial version

New page

Even though it doesn't happen quite often, sometimes spamd dies and that will lead to spam getting through.
To prevent this here is a simple watchdog that can monitor status of the spamd

/usr/local/sbin/spamd.watch
<source lang="perl">
#!/usr/bin/perl

use strict;
use IO::Socket;

my $spamd_tcp_port = 783;
my $timeout = 5 ; # seconds

my $sock = IO::Socket::INET->new( PeerAddr => 'localhost',
PeerPort => $spamd_tcp_port, Proto => "tcp", Timeout => $timeout);
my $return;

if ($sock && $sock->connected()) {
eval {
print $sock "PING SPAMC/1.0\n";
local $SIG{ALRM} = sub {die "Timeout"};
alarm $timeout;
$return = <$sock>;
alarm 0;
};
if ( defined ($@) && $@ eq "Timeout" ) {
exit 0;
}
if ($return !~ /SPAMD.+PONG/ ) {
exit 0;
} else {
exit 1;
}
}
exit 0;
</source>

Now add this script into your cron:
<pre>
*/4 * * * * root /usr/local/sbin/spamd.watch && /sbin/service spamassassin condrestart
</pre>

Spamassassin watchdog - Revision history

Vvc: Initial version