Upgrading to sendmail 8.9.3This article describes how I upgraded from sendmail 8.9.2 to sendmail 8.9.3. The process is like to be much more complicated if you have a much earlier version of sendmail. The main reason for upgrading was it fixed a a headers Denial of Service attack as well as other minor problems. See http://www.sendmail.org/ for more information.
The buildHere’s what I did:
[root@ns:/usr/ports/mail] # fetch -p ftp://ftp.sendmail.org/pub/sendmail/sendmail.8.9.3.tar.gz Receiving sendmail.8.9.3.tar.gz (1068290 bytes): 100% 1068290 bytes transfered in 57.1 seconds (18.28 Kbytes/s)[root@ns:/usr/ports/mail] # tar xvfz sendmail.8.9.3.tar.gz[root@ns:/usr/ports/mail] # cd sendmail-8.9.3[root@ns:/usr/ports/mail/sendmail-8.9.3] # cd src[root@ns:/usr/ports/mail/sendmail-8.9.3/src] # ./Build[root@ns:/usr/ports/mail/sendmail-8.9.3/src] # ./Build install
ConfigurationThe next step is to re-create your sendmail.cf file. For more detail, please see the original article on upgrading sendmail. In the following commands, I will copy the original hendrix.mc file to it’s new location and compile it to create a new sendmail.cf.
# cd/usr/ports/mail/sendmail-8.9.3/cf/cf # cp ../../../sendmail-8.9.2/cf/cf/hendrix.mc . # m4 ../m4/cf.m4 hendrix.mc > hendrix.cf # cp /etc/sendmail.cf /etc/sendmail.892 # cp hendrix.cf /etc/sendmail.cf
Now restart sendmail:
# killall -hup sendmail
Check the logs in case something went wrong. The actual file name may vary and may will be /var/log/messages.
# tail /var/log/maillog
Now you should send a message to yourself and examine the mailing list headers for that message. Somewhere, it should have this in the headers:
If you see that, then congratulations, you have the latest and greatest version of sendmail!