Configuration of the “/etc/rc.d/init.d/firewall” script file for the Mail Server
J? n * * * -|*** o * * * c * * * -7 * * * 90 * * * 97 * * *
# 31 .*.*.’*, 37.*.*.*, 39.*.*.*, 41.*.*.*, 42.*.*.*, 58-60.*.*.*
# 65-95.*.*.*, 96-126.*.*.*, 197.*.*.*, 201.*.*.* (?), 217-223.*.*.*
ipchains -A input -i $EXTERNAL_INTERFACE -s 1.0.0.0/8 -j DENY -I
ipchains -A input -i $EXTERNAL_INTERFACE -s 2.0.0.0/8 -j DENY -I
ipchains -A input -i $EXTERNAL_INTERFACE -s 5.0.0.0/8 -j DENY -I
ipchains -A input -i $EXTERNAL_INTERFACE -s 7.0.0.0/8 -j DENY -I
ipchains -A input -i $EXTERNAL_INTERFACE -s 23.0.0.0/8 -j DENY -I
ipchains -A input -i $EXTERNAL_INTERFACE -s 27.0.0.0/8 -j DENY -I
A input -A input -A input -A input -A input -A input -A input
-A input -A input -A input -A input -A input -A input -A input -A input -A input -A input -A input -A input -A input -A input -A input
ipchains ipchains ipchains ipchains ipchains ipchains ipchains
#65: 01000001
ipchains ipchains ipchains ipchains ipchains ipchains ipchains ipchains ipchains ipchains ipchains ipchains ipchains ipchains ipchains
-i $EXTERNAL -i $EXTERNAL -i $EXTERNAL~ -i $EXTERNAL -i $EXTERNAL -i $EXTERNAL~ -i $EXTERNAL.
- /3 includes 64 -i $EXTERNAL -i $EXTERNAL -i $EXTERNAL~ -i $EXTERNAL~ -i $EXTERNAL -i $EXTERNAL~ -i $EXTERNAL -i $EXTERNAL~ -i $EXTERNAL -i $EXTERNAL~ -i $EXTERNAL -i $EXTERNAL -i $EXTERNAL~ -i $EXTERNAL -i $EXTERNAL~
-s 31.0.0.0/8 -s 37.0.0.0/8 -s 39.0.0.0/8 -s 41.0.0.0/8 -s 42.0.0.0/8 -s 58.0.0.0/7 -s 60.0.0.0/8
INTERFACE INTERFACE INTERFACE INTERFACE INTERFACE INTERFACE INTERFACE
need 65-79 spelled out INTERFACE -s 65.0.0.0/8 INTERFACE -s 66.0.0.0/8 INTERFACE -s 67.0.0.0/8 INTERFACE -s 68.0.0.0/8 INTERFACE -s 69.0.0.0/8 INTERFACE -s 70.0.0.0/8 INTERFACE-s 71.0.0.0/8 INTERFACE -s 72.0.0.0/8 INTERFACE -s 73.0.0.0/8 INTERFACE -s 74.0.0.0/8 INTERFACE -s 75.0.0.0/8 INTERFACE -s 76.0.0.0/8 INTERFACE -s 77.0.0.0/8 INTERFACE -s 78.0.0.0/8 INTERFACE -s 79.0.0.0/8
-j DENY -j DENY -j DENY -j DENY -j DENY -j DENY -j DENY
-j DENY -j DENY -j DENY -j DENY -j DENY -j DENY -j DENY -j DENY -j DENY -j DENY -j DENY -j DENY -j DENY -j DENY -j DENY
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