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authorSilvio Rhatto <rhatto@riseup.net>2017-10-07 19:32:06 -0300
committerSilvio Rhatto <rhatto@riseup.net>2017-10-07 19:32:06 -0300
commit0d6bcb2b7d08e3a41481372c1ae0d11868d88b1b (patch)
treed4429ce3a62e9cb5d095ad567b5f821d99a7b9f5 /trunk/templates/vserver/files/etc/rc.d/rc.ip_forward
parent5bfb15bdbedbc7273a283d611c84ed1cf401011b (diff)
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Diffstat (limited to 'trunk/templates/vserver/files/etc/rc.d/rc.ip_forward')
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diff --git a/trunk/templates/vserver/files/etc/rc.d/rc.ip_forward b/trunk/templates/vserver/files/etc/rc.d/rc.ip_forward
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-#!/bin/sh
-# /etc/rc.d/rc.ip_forward: start/stop IP packet forwarding
-#
-# If you intend to run your Linux box as a router, i.e. as a
-# computer that forwards and redistributes network packets, you
-# will need to enable IP packet forwarding in your kernel.
-#
-# To activate IP packet forwarding at boot time, make this
-# script executable: chmod 755 /etc/rc.d/rc.ip_forward
-#
-# To disable IP packet forwarding at boot time, make this
-# script non-executable: chmod 644 /etc/rc.d/rc.ip_forward
-
-# Start IP packet forwarding:
-ip_forward_start() {
- if [ -f /proc/sys/net/ipv4/ip_forward ]; then
- echo "Activating IPv4 packet forwarding."
- echo 1 > /proc/sys/net/ipv4/ip_forward
- fi
- # When using IPv4 packet forwarding, you will also get the
- # rp_filter, which automatically rejects incoming packets if the
- # routing table entry for their source address doesn't match the
- # network interface they're arriving on. This has security
- # advantages because it prevents the so-called IP spoofing,
- # however it can pose problems if you use asymmetric routing
- # (packets from you to a host take a different path than packets
- # from that host to you) or if you operate a non-routing host
- # which has several IP addresses on different interfaces. To
- # turn rp_filter off, uncomment the lines below:
- #if [ -r /proc/sys/net/ipv4/conf/all/rp_filter ]; then
- # echo "Disabling rp_filter."
- # echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter
- #fi
-}
-
-# Stop IP packet forwarding:
-ip_forward_stop() {
- if [ -f /proc/sys/net/ipv4/ip_forward ]; then
- echo "Disabling IPv4 packet forwarding."
- echo 0 > /proc/sys/net/ipv4/ip_forward
- fi
-}
-
-# Restart IP packet forwarding:
-ip_forward_restart() {
- ip_forward_stop
- sleep 1
- ip_forward_start
-}
-
-case "$1" in
-'start')
- ip_forward_start
- ;;
-'stop')
- ip_forward_stop
- ;;
-'restart')
- ip_forward_restart
- ;;
-*)
- echo "usage $0 start|stop|restart"
-esac
-