My original problem was as followed.
> Dear Members:
> I have a SPARC 20 running SUN 5.4 and sendmail 1.31 version.
> The system seemed to be okay until about a week ago, I noticed
> a decrease in traffic of incoming mails. Looking at /var/adm/messages
> file, I found a massive amount of messages like -
> Jul 22 07:56:40 suandok01 sendmail: AA14069: SYSERR:
> collect: unexpected close, from=<@UBVM.CC.BUFFALO.EDU:
> Connection reset by peer during collect with ubvm.cc.buffalo.edu
I received prompt responses from:
P. Alejandro Lopez-Valencia <firstname.lastname@example.org>
Carlos Alexandre Polanczyk <email@example.com>
Marina Daniels <Marina.Daniels@ccd.tas.gov.au>
firstname.lastname@example.org provided specific details on how to fix
the problem which was related to /dev/tcp. He suggested the following
/usr/sbin/ndd -set /dev/tcp tcp_ip_abort_interval 480000
/usr/sbin/ndd -set /dev/tcp ip_path_mtu_discovery 0
/usr/sbin/ndd -set /dev/tcp tcp_mss_max 236
/usr/sbin/ndd -set /dev/tcp tcp_rexmit_interval_min 1000
/usr/sbin/ndd -set /dev/tcp tcp_deferred_ack_interval 100
/usr/sbin/ndd -set /dev/tcp tcp_conn_req_max 32
I changed the parameter accordingly and the problem is solved.
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:11:05 CDT