Some of the scripts that run to check for certain conditions use sendmail to “file” a report to me. Unfortunately, on many upgraded machines, sendmail was not configured correctly, so the report never left the machine on which the script was run. Since I don’t want to log into each machine to get the reports, I have to change who gets the reports. This is done with /etc/mail/aliases. This used to be sent out from the head node to all other machines, but that no longer will work. Mailman also uses the aliases file to store its information. So, I decided to simply send out a new aliases file once, to update all machines. Then manually go to the mailman server and fix the aliases file. (Then have to run newaliases for them to take effect.) When I get some time, I’ll write a script that does this all automatically (or that uses cfengine for it, which would be even better).