If you are using the AVG 7.5 for Linux/FreeBSD and the Postfix mail transfer agent and you want to upgrade it to the latest AVG 8.5 for Linux/FreeBSD, please follow these steps to perform successful transition:

• Stop Postfix
• Linux
  # /etc/init.d/postfix stop
• FreeBSD
  # /usr/local/etc/rc.d/postfix.sh stop
• Upgrade the AVG 7.5 program to the latest 8.5 version
  Accurate steps how to upgrade your AVG program are listed in FAQ 1743.
• Edit the main.cf configuration file and change (/etc/postfix/main.cf):
  
content_filter = smtp-avgd:localhost:55555
to
content_filter = smtp-avgd:localhost:54321
• Start Postfix
• Linux
  # /etc/init.d/postfix start
• FreeBSD
  # /usr/local/etc/rc.d/postfix.sh start
• Start AVG 8.5
  
# avgctl --start

 

If you are using the AVG 7.5 for Linux/FreeBSD and the Exim mail transfer agent and you want to upgrade it to the latest AVG 8.5 for Linux/FreeBSD, please follow these steps to perform successful transition:

• Stop Exim
• Linux
  # service exim stop
• FreeBSD
  # /usr/local/etc/rc.d/exim.sh stop
• Upgrade the AVG 7.5 program to the latest 8.5 version
  Accurate steps how to upgrade your AVG program are listed in FAQ 1743.
• Edit Exim configuration and change transports configuration file you have changed during AVG 7.5 configuration OR transports section of the main Exim configuration file
  from:
  avgd:
    driver = smtp
    port = 55555
    allow_localhost
  to:
  avgd:
    driver = smtp
    port = 54321
    allow_localhost
• Start Exim
• Linux
  # service exim start
• FreeBSD
  # /user/local/etc/rc.d/exim.sh start
• Start AVG 8.5
  # avgctl --start

If you are using the AVG 7.5 for Linux/FreeBSD and the Qmail mail transfer agent and you want to upgrade it to the latest AVG 8.5 for Linux/FreeBSD, please follow these steps to perform successful transition:

• Stop the Qmail service
• Linux
  # /etc/init.d/qmail stop
• FreeBSD
  /usr/local/etc/rc.d/qmaild.sh stop
• Upgrade the AVG 7.5 program to the latest 8.5 version
  Accurate steps how to upgrade your AVG program are listed in FAQ 1743.
• If the qmail-queue-avg is still correctly installed (required by AVG 7.5) with default communication port 55555 then please change configuration of AVG 8.5 to use this port too:
  # avgcfgctl -w Default.tcpd.avg.ports="|55555|"</li><li><strong>Start Qmail and AVG 8.5</strong></li><ul><li><strong>Linux<br></strong># /etc/init.d/qmail start<br># avgctl --start</li><li><strong>FreeBSD<br></strong># /usr/local/etc/rc.d/qmaild.sh start<br># avgctl --start</li></ul>
   

• Linux
  # avgctl --start
  # /etc/init.d/sendmail start
• FreeBSD
  # avgctl --start
  # /usr/local/etc/rc.d/sendmail.sh start

You may have noticed that during the program update of AVG for Linux/FreeBSD the AVG daemons are restarted during the update process, therefore mail processing on MTA is suspended for a while. For further correct function of some MTAs, it can be necessary to flush MTA´s queue manually in order to receive all deferred e-mails and to restore mail processing again. Please find the steps for MTA you are using below:

• Postfix
  All e-mails received during restart of AVG are placed to the queue and it might be necessary to flush the queue to process all e-mails in it. Please use the following command to flush the queue manually:
  
  # /etc/init.d/postfix flush
  
• Sendmail
  All e-mails received during restart of AVG (after program update) are temporarily rejected by Sendmail. However, almost all servers are trying to send e-mail more times when rejected so every e-mail should be delivered only with some small delay (as it will be accepted later).
  
  Note: In case of Sendmail MTA it is not possible to have both milter interface and smtp protocol enabled in AVG at the same time and it is recommended to disable communication via smtp protocol prior to the program update (or after the program update if it already took place). Please see FAQ 1891 for more information.
  
• Exim
  All e-mails received during restart of AVG are placed to the queue and it might be necessary to flush the queue to process all e-mails in it. You can use this command to flush the queue manually:
  
  # exim -qff
  
• Qmail
  All e-mails received during restart of AVG are temporarily rejected until AVG is ready again. Every e-mail should be delivered with a small delay.

We would like to inform you that after the last program update of AVG for Linux/FreeBSD (build 288), it is not possible to have the following options enabled simultaneously:

Default.tcpd.milter.enabled=true
Default.tcpd.smtp.enabled=true

If these options are enabled at the same time, milter cannot be initialized and e-mails cannot be processed by AVG.

If you experience such issue after the last program update of AVG, please follow these steps to rectify it:

• Change the configuration of AVG
  
  # avgcfgctl -w Default.tcpd.smtp.enabled=false
  
  
• Restart AVG
  
  # avgctl --restart

Please note that the AVG functions/protection levels are not affected by this change.