Migrating sendmail configuration

Two key files control sendmail operation:

/usr/lib/sendmail.cf

contains sendmail configuration information including addressing, channel, and domain information

/usr/lib/mail/aliases

contains aliases of user names to their addresses

Additionally, you might want to bring forward virtual domain configuration files. sendmail uses these files to route incoming mail to users whose addresses are in virtual domains on your system.

Saving sendmail data from the IFS system

The following files must be saved before you reinstall:

• /usr/lib/sendmail.cf

  Save in all cases.

• /usr/lib/mail/aliases

  Save in all cases.

• Other aliases files.

  Save only if you configured them and they are referred to by sendmail.cf.

• /usr/internet/lib/sco_mail/domains
  /usr/internet/lib/sco_mail/domains.db
  /usr/internet/ip/ipaddress/sco_mail/passwd
  /usr/internet/ip/ipaddress/sco_mail/config
  /usr/internet/ip/ipaddress/sco_mail/spool/*

  Save only if you use virtual domains.

  ipaddress is the IP address for each domain.

Example sendmail backup

A system called phoebe uses sendmail, does not use additional aliases files, and has virtual domains configured. The virtual domains are:

Domain name	IP Address
veggies.com	192.168.118.1
fruits.com	192.168.118.2
nuts.com	192.168.118.3

To save the sendmail configuration for this system:

1. Save the names and IP addresses of each of your domains, either by writing them down or by selecting Print from the Internet Manager's File menu.

2. Save the following files to floppy (remember that the IP addresses shown below are examples only):

      /usr/lib/sendmail.cf
      /usr/lib/mail/aliases
      /usr/internet/lib/sco_mail/domains
      /usr/internet/lib/sco_mail/domains.db
      /usr/internet/ip/192.168.118.1/sco_mail/passwd
      /usr/internet/ip/192.168.118.1/sco_mail/config
      /usr/internet/ip/192.168.118.1/sco_mail/spool/*
      /usr/internet/ip/192.168.118.2/sco_mail/passwd
      /usr/internet/ip/192.168.118.2/sco_mail/config
      /usr/internet/ip/192.168.118.2/sco_mail/spool/*
      /usr/internet/ip/192.168.118.3/sco_mail/passwd
      /usr/internet/ip/192.168.118.3/sco_mail/config
      /usr/internet/ip/192.168.118.3/sco_mail/spool/*
   

   tar cv6 /usr/lib/sendmail.cf \
   /usr/lib/mail/aliases \
   /usr/internet/lib/sco_mail/domains \
   /usr/internet/lib/sco_mail/domains.db \
   /usr/internet/ip/192.168.118.1/sco_mail/passwd \
   /usr/internet/ip/192.168.118.1/sco_mail/config \
   /usr/internet/ip/192.168.118.1/sco_mail/spool/* \
   /usr/internet/ip/192.168.118.2/sco_mail/passwd \
   /usr/internet/ip/192.168.118.2/sco_mail/config \
   /usr/internet/ip/192.168.118.2/sco_mail/spool/* \
   /usr/internet/ip/192.168.118.3/sco_mail/passwd \
   /usr/internet/ip/192.168.118.3/sco_mail/config \
   /usr/internet/ip/192.168.118.3/sco_mail/spool/*

• The tar command shown accesses the 3.5-inch floppy drive (tar key 6). You can substitute another device if desired.

• A trailing backslash is necessary on all but the last line.

To confirm that the files were saved, enter the following at your system prompt:

tar tv6

The files you saved should be listed.

Restoring sendmail data on your SCO OpenServer system

After you install your SCO OpenServer system, you can use the configuration files you saved to restore your previous sendmail configuration:

1. If you configured virtual domains, start the Internet Manager.

   Use it to configure virtual domains as described in the SCO OpenServer Handbook, using the domain name and IP addresses you saved previously. This creates the directory structure to hold the files you want to restore.

2. Insert the floppy containing the sendmail configuration files into the disk drive.

3. From the command line, enter:
   
   tar xv6

   This restores the saved sendmail (and virtual domain) configuration data.