local network. Turn off mail receiving on OLD_HOST, run btrbk to move
mail to NEW_HOST, turn on mail receiving on NEW_HOST.
+-o Only btrbk /o, instead of all filesystems.
-w Don't try to ssh to wrt. Should only be used in unusual network situation.
-h|--help Print help and exit.
update_wrt=true # default
temp=$(getopt -l help wh "$@") || usage 1
+mp_args=
eval set -- "$temp"
while true; do
case $1 in
+ -o) mp_args="-m /o"; shift ;;
-w) update_wrt=false; shift ;;
-h|--help) usage ;;
--) shift; break ;;
fi
at_home=false
-if [[ $HOSTNAME == tp ]] || [[ $HOSTNAME == frodo ]] || timeout -s 9 5 ssh wrt.b8.nz :; then
+if timeout -s 9 5 ssh-keyscan -p 2220 -t rsa 10.0.0.1 2>/dev/null | grep -qFx '[10.0.0.1]:2220 ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCH+/h1dGEfKEusBblndU2e6QT4wLCm5+yqr/sqh/0X9YfjR7BfWWm8nNmuP55cYc+Wuf5ljB1H1acXEcsl1y8e0j3agHfF0V74FE1N1zz5nn2Ep8NHnmqgEhza38ZxMPh+4p3X7zklEKU7+3SzybKBi8sg0wLzlS2LM0JaUN80zR2sK11Kye3dURUXPk78u5wodOkgcEYRwSYaDMJlUzWP+poRXIDJwFaMQnwmxbl/c84yOyaU0x/d6hFwoRscWecihX+vvBNeSyxR4xr2HDOyUWwJkctyAgt2p7w3tfkXOKcCRzTAjGVIMQLTvo0sG/yJbcyHoEFdFybCsgDvfyYn'; then
at_home=true
fi
echo "$0: at_home = $at_home"
# todo: setup vpn so this is all taken care of.
if ! $update_wrt; then
wrt_shell=:
-elif $at_home; then
- wrt_shell="ssh wrt.b8.nz"
else
- if [[ $old_host == iank.vpn.office.fsf.org || $new_host == iank.vpn.office.fsf.org ]]; then
- wrt_shell="ssh iank.vpn.office.fsf.org ssh wrt.b8.nz"
- else
- wrt_shell="ssh $HOME_DOMAIN ssh wrt.b8.nz"
- fi
+ wrt_shell="ssh wrt.b8.nz"
fi
btrbk_test="systemctl is-active btrbk.service"
if mountpoint -q /o; then sudo umount /o; fi
EOF
-# if new_host is not on home network, make mail.iankelling.org not resolve
-# on the home network.
-if [[ $new_host == $HOSTNAME ]] && ! $at_home; then
- echo | $wrt_shell cedit mail_host /etc/hosts || [[ $? == 1 ]] # 1 means file changed.
-else
- $wrt_shell bash -xs $new_host <<'EOFOUTER'
-new_host=$1
-cedit mail_host /etc/hosts <<EOF || /etc/init.d/dnsmasq restart
-$(grep "\b$new_hostname\b" /etc/hosts | awk '{print $1}') mail.iankelling.org
-EOF
-EOFOUTER
-fi
+# previously, I was checking to see if the new mail host
+# is on my home network, then changing my home dns
+# to resolve on the local network, so that I didnt
+# have to send traffic out to the internet or rely
+# on that. However, that breaks for a laptop that roams.
+# So, we could have a cronjob that updates that dns,
+# however, another solution is to just use ipv6,
+# and I prefer that.
+#
+# TODO: enable ipv6 for email. exim config setting disables it.
+# need to add vpn support. need to add firewall / routing.
+# I think exim will try ipv6 first, so no need to disable
+# ipv6 i think.
$old_shell primary-setup $new_hostname
/a/bin/distro-setup/install-my-scripts
if $localhost_new; then
- btrbk-run -s $old_host -m /o
+ btrbk-run -s $old_host $mp_args
else
- btrbk-run -t $new_host -m /o
+ btrbk-run -t $new_host $mp_args
fi
$new_shell primary-setup $new_hostname