Hi. I have a Ubuntu 10.04 server with ispconfig installed with the perfect server guide. I'm having problems with a very high load average thats makes me reboot the system. A ps aux show me a lot of processes like this: Code: postfix 13499 0.0 0.0 12444 1824 ? S 14:00 0:00 smtpd -n smtp -t inet -u -c -o stress= postfix 15852 0.0 0.1 11940 2408 ? S 14:18 0:00 smtpd -n 127.0.0.1:10025 -t inet -u -c -o content_filter= -o local_recipient_maps= -o relay_recipient_maps= -o smtpd_restriction_classes= -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o mynetworks=127.0.0.0/8 -o strict_rfc821_envelopes=yes -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks -o smtpd_bind_address=127.0.0.1 Is this normal or is it a spam attack? Thanks in advance
The processes do not indicate if thats a spam attack or not as processes for normal mail have the same parameters then processes that deliver a spam mail. Take a look at your mail.log and mailqueue if you like to know if the high load is related to a spam attack.
