--- jonen/notes/notes_2003-02.txt	2003/02/27 16:10:53	1.1
+++ jonen/notes/notes_2003-02.txt	2003/03/09 15:03:18	1.2
@@ -3,7 +3,7 @@
     o learn howto move /etc of servers to cvs !!
     x search if new packages available, do 'apt-get --dry-run upgrade'! 
      x build small systool script 'apt-get_remote.pl' which do a cronly 'apt-get --dry-run upgrade' and send output via mail
-     o review 'ept-get_remote.pl'
+     o review 'apt-get_remote.pl'
        o what's about parsing some response for comand like installing some marked packages
 
   - QoS (Quality of Services)
@@ -62,6 +62,21 @@
   
     - Sendmail
       o research some about sendmail-cluster, 2 mx records, howto to set up second mx/cluster?
+       x backup mx:
+          - set up second mx at dns
+          - add at backup mx place some like this at /etx/mail/mailtertable:
+               domain.com     esmtp:[123.123.123.123]
+             where the ip points to the system the real user accounts
+            and add every domain to /etc/mail/relay-domains:
+               domain.com
+             o whats about these *open* relaying rules(security ?!?)
+       x simple load balancing:
+          - set up two(or more) mx records with same priority at dns
+          - add at every mx place some like this at /etx/mail/mailtertable:
+               domain.com     esmtp:[123.123.123.123]
+             where the ip points to the system the real user accounts are
+          note: this will do load balancing between eg 2 mail server, but if one fails,
+                   there is only a 50% chance that sent messages would arrive
       o change '/etc/init.d/amavisd' to '/etc/init.d/amavis-milter' in howto
       o migrationtools:
         o patch migrationtools for sendmail aliases support (/usr/share/migrationtools/migrate_aliases.pl)
@@ -76,8 +91,8 @@
        - Create Database
          :# mysqladmin create <database>
        - Set Privileges on databases(creates user too, if not exists...):
-           mysql>grant all on <database>.* to <user> identified by "<passwd>";
-           mysql>grant all on <database>.* to <user>@localhost identified by "<passwd>";
+           mysql>grant all on <database>.* to <user> identified by "<pass>";
+           mysql>grant all on <database>.* to <user>@<domain> identified by "<pass>";
 
 
   - Document saving: