3COM Security Switch 6200 Applications Software Installation3-4 Installing the Trend Micro VirusWall, eManager, andIMSS Software onto Your SystemYou must now install the application as specified by TrendMicro. The vendor files have been copied to /usr/os/apps/IMSS.3 Change to the /usr/os/apps/ directory, using the following command:cd /usr/os/apps/IMSS4 Locate the following zipped tar-ball file:imss_v5.1en_b1300_linux.tar.gz5 To install IMSS, complete the following:a Execute the gzip and tar commands on the following zipped tar file:tar -zxvf imss_v5.1en_b1300_linux.tar.gzb Change to the following directory:cd /usr/os/apps/IMSS/build_LINUX_1300c Step through the IMSS configuration, using the following command:./isinstEditing the IMSS Postfix ConfigurationAfter you have installed the IMSS software you need to change the IMSSPostfix configuration to enable the content filter interface to the InterScanMSS for Unix scanning daemon. To do this, complete the following:1 Change to the /etc/postfix directory and open the main.cf file.2 Insert or modify the following settings within the main.cf file, as follows.mydomain = your.domain.namemyhostname = your.hostname.domainnamemydestination = $myhostname, localhost.$mydomain, $mydomaindefault_process_limit=200imss_timeout=10mimss_connect_timeout=1scontent_filter = imss:localhost:10025imss_destination_recipient_limit=200imss_destination_concurrency_limit=203 Close the previous file and then open the master.cf file.4 Insert the following settings into the master.cf file.#InterScan MSS: content filter smtp transport imss forInterScan MSSimss unix - - n - - smtpdisable_dns_lookups=yessmtp_connect_timeout=$imss_connect_timeoutsmtp_data_done_timeout=$imss_timeout#InterScan MSS: content filter loop back smtpdlocalhost:10026 inet n - n - 20 smtpd1 Refer to the 3COM Security Switch 6200 Product Release Notes for the correct software version and rpm filename.