This makes us less dependent on alberti's name, but also could trigger
non-root SSH config rules, because it's not necessary here.

howto/upgrades.md

@@ -187,10 +187,10 @@ This routine should be able to reboot all hosts with a `rebootPolicy`
 defined to `justdoit` or `rotation`:
 
     echo "rebooting 'justdoit' hosts with a 10-minute delay, every 2 minutes...."
-    ./reboot -H $(ssh alberti.torproject.org 'ldapsearch -h db.torproject.org -x -ZZ -b ou=hosts,dc=torproject,dc=org -LLL "(rebootPolicy=justdoit)" hostname | awk "\$1 == \"hostname:\" {print \$2}" | sort -R') --delay-shutdown=10 --delay-hosts=120 -v
+    ./reboot -H $(ssh db.torproject.org 'ldapsearch -h db.torproject.org -x -ZZ -b ou=hosts,dc=torproject,dc=org -LLL "(rebootPolicy=justdoit)" hostname | awk "\$1 == \"hostname:\" {print \$2}" | sort -R') --delay-shutdown=10 --delay-hosts=120 -v
 
     echo "rebooting 'rotation' hosts with a 10-minute delay, every 30 minutes...."
-    ./reboot -H $(ssh alberti.torproject.org 'ldapsearch -h db.torproject.org -x -ZZ -b ou=hosts,dc=torproject,dc=org -LLL "(rebootPolicy=rotation)" hostname | awk "\$1 == \"hostname:\" {print \$2}" | sort -R') --delay-shutdown=10 --delay-hosts=1800 -v
+    ./reboot -H $(ssh db.torproject.org 'ldapsearch -h db.torproject.org -x -ZZ -b ou=hosts,dc=torproject,dc=org -LLL "(rebootPolicy=rotation)" hostname | awk "\$1 == \"hostname:\" {print \$2}" | sort -R') --delay-shutdown=10 --delay-hosts=1800 -v
 
 ### Rebooting KVM hosts