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Add AllowICMPs action and invoke from Drop and Reject

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git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@1667 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
This commit is contained in:
teastep 2004-10-08 00:11:54 +00:00
parent aeb3d2cea2
commit d260f20ce4
4 changed files with 85 additions and 10 deletions
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11
LrpN/usr/share/shorewall/action.AllowICMPs Normal file
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@ -0,0 +1,11 @@
#
# Shorewall 2.1 /usr/share/shorewall/action.AllowICMPs
#
# ACCEPT needed ICMP types
#
######################################################################################
#TARGET SOURCE DEST PROTO DEST SOURCE RATE USER/
# PORT PORT(S) LIMIT GROUP
#
ACCEPT - - icmp fragmentation-needed
ACCEPT - - icmp time-exceeded

39
LrpN/usr/share/shorewall/action.Drop
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@ -3,14 +3,47 @@
#
# The default DROP common rules
#
# This action is invoked before a DROP policy is enforced. The purpose of the action
# is:
#
# a) Avoid logging lots of useless cruft.
# b) Ensure that 'auth' requests are rejected, even if the policy is DROP.
# Otherwise, you may experience problems establishing connections with
# servers that use auth.
# c) Ensure that certain ICMP packets that are necessary for successful
# internet operation are always ACCEPTed.
#
# IF YOU ARE HAVING CONNECTION PROBLEMS, CHANGING THIS FILE WON'T HELP!!!!!!!!!!!!
######################################################################################
#TARGET SOURCE DEST PROTO DEST SOURCE RATE USER/
# PORT PORT(S) LIMIT GROUP
#TARGET SOURCE DEST PROTO
#
# Reject 'auth'
#
RejectAuth
#
# Don't log broadcasts
#
dropBcast
#
# ACCEPT critical ICMP types
#
AllowICMPs - - icmp
#
# Drop packets that in the INVALID state -- these are usually ICMP packets and just
# confuse people when they appear in the log.
#
dropInvalid
#
# Drop Microsoft noise so that it doesn't clutter up the log.
#
DropSMB
DropUPnP
dropNotSyn
#
# Drop 'newnotsyn' traffic so that it doesn't get logged.
#
dropNotSyn - - tcp
#
# Drop late-arriving DNS replies. These are just a nuisance and clutter up the log.
#
DropDNSrep
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

36
LrpN/usr/share/shorewall/action.Reject
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@ -3,14 +3,44 @@
#
# The default REJECT action common rules
#
# This action is invoked before a REJECT policy is enforced. The purpose of the action
# is:
#
# a) Avoid logging lots of useless cruft.
# b) Ensure that certain ICMP packets that are necessary for successful
# internet operation are always ACCEPTed.
#
# IF YOU ARE HAVING CONNECTION PROBLEMS, CHANGING THIS FILE WON'T HELP!!!!!!!!!!!!
######################################################################################
#TARGET SOURCE DEST PROTO DEST SOURCE RATE USER/
# PORT PORT(S) LIMIT GROUP
#TARGET SOURCE DEST PROTO
#
# Don't log 'auth' REJECT
#
RejectAuth
#
# Drop Broadcasts so they don't clutter up the log (broadcasts must *not* be rejected).
#
dropBcast
#
# ACCEPT critical ICMP types
#
AllowICMPs - - icmp
#
# Drop packets that in the INVALID state -- these are usually ICMP packets and just
# confuse people when they appear in the log (these ICMPs cannot be rejected).
#
dropInvalid
#
# Drop Microsoft noise so that it doesn't clutter up the lot.
#
RejectSMB
DropUPnP
dropNotSyn
#
# Drop 'newnotsyn' traffic so that it doesn't get logged.
#
dropNotSyn - - tcp
#
# Drop late-arriving DNS replies. These are just a nuisance and clutter up the log.
#
DropDNSrep
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE

9
LrpN/usr/share/shorewall/actions.std
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@ -1,15 +1,15 @@
#
# Shorewall 2.0 /usr/share/shorewall/actions.std
# Shorewall 2.1 /usr/share/shorewall/actions.std
#
#
# Builtin Actions are:
#
# allowBcast #Silently Allow Broadcast/multicast
# dropBcast #Silently Drop Broadcast/multicast
# dropNonSyn #Silently Drop Non-syn TCP packets
# rejNonSyn #Silently Reject Non-syn TCP packets
# logNonSyn #Log Non-syn TCP packets with disposition LOG
# dLogNonSyn #Log Non-syn TCP packets with disposition DROP
# rLogNonSyn #Log Non-syn TCP packets with disposition REJECT
# dropInvalid #Silently Drop packets that are in the INVALID
# #conntrack state.
#
# The NonSyn logging builtins log at the level specified by LOGNEWNOTSYN in
# shorewall.conf. If that option isn't specified then 'info' is used.
@ -32,6 +32,7 @@ AllowSMB #Allow MS Networking
AllowAuth #Allow Auth (identd)
AllowSMTP #Allow SMTP (Email)
AllowPOP3 #Allow reading mail via POP3
AllowICMPs #Allows critical ICMP types
AllowIMAP #Allow reading mail via IMAP
AllowTelnet #Allow Telnet Access (not recommended for use over the
#Internet)