hi,
this pertains to the issue raised by our unit in barbados, having ip
address 173.225.251.221, i have included the said ip in debug_peer_list
we are getting lot of messages in the mail log showing the following
Jan 20 00:15:21 mailgate postfix/smtpd[18917]: lost connection after EHLO
from unknown[173.225.251.221]
Jan 20 00:26:21 mailgate postfix/smtpd[18917]: lost connection after
CONNECT from unknown[173.225.251.221]
Jan 20 03:17:53 mailgate postfix/smtpd[20255]: lost connection after
CONNECT from unknown[202.43.9.67]
my mail server configuration is given below :
mailgate:~ # postconf -n
canonical_maps = hash:/etc/postfix/canonical
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/lib/postfix
debug_peer_level = 2
debug_peer_list = 173.225.251.221
disable_dns_lookups = no
header_checks = regexp:/etc/postfix/header_checks
home_mailbox = Maildir/
inet_interfaces = all
mail_owner = postfix
mail_spool_directory = /var/mail
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
masquerade_classes = envelope_sender, header_sender, header_recipient
masquerade_exceptions = root
message_size_limit = 8703181
mydestination = $myhostname, localhost.$mydomain
myhostname = mailgate.asianpaints.com
mynetworks = 127.0.0.1/8 , 192.168.40.0/24 ,172.25.10.94/32
newaliases_path = /usr/sbin/sendmail
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/packages/postfix/README_FILES
recipient_canonical_maps = hash:/etc/postfix/recipient_canonical
relocated_maps = hash:/etc/postfix/relocated
sample_directory = /usr/share/doc/packages/postfix/samples
sender_canonical_maps = hash:/etc/postfix/sender_canonical
sendmail_path = /usr/sbin/sendmail
setgid_group = maildrop
smtpd_helo_required = yes
smtpd_recipient_restrictions = check_sender_access
hash:/etc/postfix/sender_access, check_recipient_access
hash:/etc/postfix/sender_access reject
strict_rfc821_envelopes = yes
transport_maps = hash:/etc/postfix/transport
virtual_maps = hash:/etc/postfix/virtual
the output of master.cf
mailgate:~ # cat /etc/postfix/master.cf | grep ^[^#]
smtp inet n - n - 100 smtpd
587 inet n - n - - smtpd -v
pickup fifo n - n 60 1 pickup
cleanup unix n - n - 0 cleanup
qmgr fifo n - n 300 1 qmgr
rewrite unix - - n - - trivial-rewrite
bounce unix - - n - 0 bounce
defer unix - - n - 0 bounce
flush unix n - n 1000? 0 flush
smtp unix - - n - - smtp
showq unix n - n - - showq
error unix - - n - - error
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - n - - lmtp
cyrus unix - n n - - pipe
flags=R user=cyrus argv=/usr/lib/cyrus/bin/deliver -e -m ${extension}
${user}
uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail
($recipient)
ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop
$recipient
vscan unix - n n - 10 pipe
user=vscan argv=/usr/sbin/amavis ${sender} ${recipient}
procmail unix - n n - - pipe
flags=R user=nobody argv=/usr/bin/procmail -t -m /etc/procmailrc
${sender} ${recipient}
127.0.0.1:10025 inet n n n - 10 spawn
user=filter argv=/opt/kav/bin/smtpscanner
127.0.0.1:10026 inet n - n - 10 smtpd
-o content_filter= -o myhostname=mailgate
i have few days back increased the smtpd process count to 100 which was
specified as 50.
how do i go about resolving it.
rgds,
Santosh Malavade
