Add a missing $
so we delete $_ip and not _ip
iptables -D POSTROUTING -t nat -s $CTDB_NATGW_PRIVATE_NETWORK -d ! $CTDB_NATGW_PRIVATE_NETWORK -j MASQUERADE >/dev/null 2>/dev/null
# remove any iptables rule we may have on this address
iptables -D POSTROUTING -t nat -s $CTDB_NATGW_PRIVATE_NETWORK -d ! $CTDB_NATGW_PRIVATE_NETWORK -j MASQUERADE >/dev/null 2>/dev/null
# remove any iptables rule we may have on this address
- iptables -D INPUT -p tcp --syn -d _ip/32 -j REJECT 2>/dev/null
+ iptables -D INPUT -p tcp --syn -d $_ip/32 -j REJECT 2>/dev/null