Warm blanket of open source
Along with this website, I also run my own SMTP/IMAP and name services on my own server and connection. (It's not a very fast connection, but it generally does okay.) Every once in a while a security alert will come out that affects me: today it was on sendmail. Since I haven't yet converted this box to Gentoo, I moseyed on over to the RedHat page on this, downloaded the source RPM and executed a rpm --rebuild on it. After a minute or two it had built the binary packages which I installed, first backing up my .mc file that would take some time to rebuild properly. Then a quick stop and start of the service and everything was good.No reboot. No restart of the Cyrus IMAP daemon. No reconfiguration necessary. Everything just worked, and after dealing with one-size-fits-all monster mail servers that require operating system upgrades, that kicks ass.