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- #!/bin/sh -e
-
- create_hosts_file() {
- if [ -e /etc/hosts ]; then return 0; fi
-
- cat > /etc/hosts <<-EOF
- 127.0.0.1 localhost
- ::1 localhost ip6-localhost ip6-loopback
- fe00::0 ip6-localnet
- ff00::0 ip6-mcastprefix
- ff02::1 ip6-allnodes
- ff02::2 ip6-allrouters
-
- EOF
- }
-
- create_networks_file() {
- if [ -e /etc/networks ]; then return 0; fi
-
- cat > /etc/networks <<-EOF
- default 0.0.0.0
- loopback 127.0.0.0
- link-local 169.254.0.0
-
- EOF
- }
-
- update_rc() {
- if [ -x /etc/init.d/networking ]; then
- update-rc.d networking start 40 S . start 35 0 6 . > /dev/null
- fi
- }
-
- # create bindv6only.conf on new installs and upgrades from << 4.38
- create_bindv6only_conf() {
- if [ -e /etc/sysctl.d/bindv6only.conf ]; then
- return 0
- fi
- [ "$(uname -s)" = "Linux" ] || return 0
- [ -d /etc/sysctl.d/ ] || mkdir /etc/sysctl.d/
- if [ "$2" ] && dpkg --compare-versions "$2" ge "4.38"; then
- return 0
- fi
-
- cat >> /etc/sysctl.d/bindv6only.conf <<-EOF
- # This sysctl sets the default value of the IPV6_V6ONLY socket option.
- #
- # When disabled, IPv6 sockets will also be able to send and receive IPv4
- # traffic with addresses in the form ::ffff:192.0.2.1 and daemons listening
- # on IPv6 sockets will also accept IPv4 connections.
- #
- # When IPV6_V6ONLY is enabled, daemons interested in both IPv4 and IPv6
- # connections must open two listening sockets.
- # This is the default behaviour of almost all modern operating systems.
-
- net.ipv6.bindv6only = 1
- EOF
- }
-
- case "$1" in
- configure)
- if [ -z "$2" ]; then
- create_hosts_file
- create_networks_file
- fi
- update_rc
- #create_bindv6only_conf "$@"
- ;;
-
- abort-upgrade|abort-remove|abort-deconfigure)
- ;;
-
- *)
- echo "postinst called with unknown argument '$1'" >&2
- exit 1
- ;;
- esac
-
-
-
-