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+# Miscellanous Notes on Server Hosting specifics
+
+## LUKS container over sshfs
+
+* enable user\_allow\_other in /etc/fuse.conf
+* sshfs -o allow\_root user@server:/BACKUPS/ ~/mnt/
+* dd if=/dev/urandom of=~/mnt/megaloman bs=1M count=512
+* sudo cryptsetup -y luksFormat ~/mnt/megaloman
+* sudo cryptsetup luksOpen ~/mnt/megaloman vol1
+* sudo mkfs.ext4 /dev/mapper/vol1
+* sudo mount /dev/mapper/vol1 /mnt
+* df -h | grep vol1
+* sudo umount /mnt
+* sudo cryptsetup luksClose vol1
+* fusermount -u ~/mnt
+
+NOTE: backup your data example use : rsync -a –info=progress2 source dist
+
+## Ownlcoud
+
+### Mounting Ownclouds DavFS
+
+    $ apt-get install davfs2
+
+    * since owncloud seems to have problems with locks, edit /etc/davfs2/davfs2.conf and set use_locks to 0 in order to allow creating files (as well as probably writing)
+
+    $ mount -t davfs https://secure.sf.com/owncloud/remote.php/webdav /mnt/
+
+### rescan/rebuild ownlocud files database
+
+    inside ownlcoud  directory run:
+    sudo -u www-owncloud php console.php files:scan –all
+
+## Postfix
+
+We want to handle different domains on a single postfix server and have virtual users along real unix users.
+For the virtual users we use uid/gid 5000.
+
+Relevant config files are:
+
+    /etc/postfix/master.cf
+    /etc/postfix/main.cf
+    /etc/postfix/smtpd_sender_login_maps (tells which emails belong to which login)
+    /etc/postfix/vmailbox (sepcifies our VIRTUAL mailboxes and the names of the spoolfiles)
+    /etc/postfix/virtual (aliases for our local unix users)
+    /etc/dovecot/users (specifies the logins, passwords, home directories,..)
+    /etc/dovecot/conf.d/10-mail (set inbox and mailbox dirs)
+
+Be careful about the permissions of the different folders, so uid/gid 5000, postfix and dovecot can access as relevant.
+
+A very nice tutorial on setting up postfixadmin can be found here: 
+
+    https://lelutin.ca/posts/installing_postfix_-_clamav_-_spamassassin_-_dovecot_-_postfixadmin_on_debian_squeeze/