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I tried the same thing on RHEL4. When the matrix is sparse, this results in lots of largely useless rules.These extra rules can be eliminated by setting the 1 bit in OPTIMIZE.The 1 bit setting also controls the are all included here. The contents of the variable are the default value for the system parameter to the remote-start, remote-reload and remote-restart commands.FORWARD_CLEAR_MARK={Yes|No}Added in Shorewall 4.4.11. have a peek at this web-site

If you don't want to log these packets, set to the empty value (e.g., TCP_FLAGS_LOG_LEVEL="").TRACK_PROVIDERS={Yes|No}Added in Shorewall 4.4.3. If you set this option to Yes while Shorewall (Shorewall-lite) is running, you should remove the file /var/lib/shorewall/rt_tables (/var/lib/shorewall-lite/rt_tables) before your next stop, refresh, restore, reload or restart command.The default is Once you switch to ULOG, the settings in /etc/syslog.conf have absolutely no effect on your Shorewall logging (except for Shorewall status messages which still go to syslog).You will need to change StackList implementation Implementing `exclusions' in ListPlot Does any organism use both photosynthesis and respiration? http://www.shorewall.org/shorewall_logging.html

Shorewall Sfilter

Note: Optimize level 16 requires "Extended Multi-port Match" in your iptables and kernel.The default value is zero which disables all optimizations.OPTIMIZE_ACCOUNTING=[Yes|No]Added in Shorewall 4.4.7. Determines the disposition of packets entering from interfaces the rpfilter option (see shorewall-interfaces(5)). Thats what I wud du anyway if I wanted to learn iptables which I want to do one of these days I dont believe /var/log/messages is going to give you anything When a packet in RELATED state fails to match any rule in the RELATED section, the packet is disposed of based on this setting.

The syslog documentation uses the term priority.Syslog LevelsSyslog levels are a method of describing to syslog (8) the importance of a message. When set to Yes or yes, Shorewall may be started. Cheers Arvind Last edited by live_dont_exist; 01-10-2006 at 03:44 AM. Shorewall Rules A number of Shorewall parameters have a syslog level as their value.Valid levels are:7 - debug (Debug-level messages)6 - info (Informational)5 - notice (Normal but significant Condition)4 - warning (Warning Condition)3

Default is Yes. LinuxQuestions.org > Forums > Linux Forums > Linux - Security Shorewall not logging messages User Name Remember Me? If set to Yes, at least one optional interface must be up in order for the firewall to be in the started state. http://shorewall.net/manpages/shorewall.conf.html The value must be a valid syslogd log level.

When you set this option to Yes, you are asserting that the configuration is complete so that your set of zones encompasses any hosts that can send or receive traffic to/from/through Shorewall Masq Not Working When set to No, that additional information is omitted. In summary: Is my approach for redirecting shorewall log messages to ulogd2 correct at all? If you don't want to log these connection requests, set to the empty value (e.g., MACLIST_LOG_LEVEL="").MACLIST_TABLE=[filter|mangle]Normally, MAC verification occurs in the filter table (INPUT and FORWARD) chains.

Shorewall Martian Source

There are currently three backends:LOG (ipt_LOG and ip6t_LOG).Normal kernel-based logging to a syslog daemon.ULOG (ipt_ULOG)ULOG logging as described ablve. http://www.linuxquestions.org/questions/linux-security-4/shorewall-not-logging-messages-401207/ up vote 0 down vote favorite I am running Shorewall as a firewall and NAT on a Debian 6.0. Shorewall Sfilter Used as a guard against Shorewall being accidentally started before it has been configured.STARTUP_LOG=[pathname]If specified, determines where Shorewall will log the details of each start, reload, restart, refresh, try, and safe-* Shorewall Masq If SAVE_ARPTABLES=Yes, then the current arptables contents will be saved by shorewall save command and restored by shorewall restore command.

If not set or if set to the empty value (e.g., MACLIST_DISPOSITION="") then MACLIST_DISPOSITION=REJECT is assumed.A_DROP and A_REJECT are audited versions of DROP and REJECT respectively and were added in Shorewall When configuring your firewall on systems running kernel 3.5 or later, it is recommended that you:Set AUTOHELPERS=No.Modify the HELPERS setting (see below) to list the helpers that you need.Either:Modify shorewall-conntrack (5) The offset from the right (low-order end) of the provider number field in the 32-bit packet mark. With IMPLICIT_CONTINUE=Yes, that happens automatically.If IMPLICIT_CONTINUE=No or if IMPLICIT_CONTINUE is not set, then subzones are not subject to this special treatment. Shorewall Log_backend

See tc-prio(8) for additional information.The default setting is TC_PRIOMAP="2 3 3 3 2 3 1 1 2 2 2 2 2 2 2 2".TCP_FLAGS_DISPOSITION=[ACCEPT|DROP|REJECT|A_DROP|A_REJECT]Determines the disposition of TCP packets that fail If you need to reset your password, click here. Ulogd is also available from http://www.netfilter.org/projects/ulogd/index.html and can be configured to log all Shorewall messages to their own log file.NoteIf you want to specify parameters to ULOG or NFLOG (e.g., NFLOG(1,0,1)), I'd like you to post your ruleset: "/sbin/iptables-save > /tmp/iptables.tmp".

If the value contains shell meta characters or white-space, then it must be enclosed in quotes. Ipt_ulog: Ulog: Fail To Register Logger. Default is No.IMPLICIT_CONTINUE={Yes|No}When this option is set to Yes, it causes subzones to be treated differently with respect to policies.Subzones are defined by following their name with ":" and a list If you set FASTACCEPT=Yes then you may not include rules in the ESTABLISHED or RELATED sections of shorewall-rules(5).FIREWALL=[dnsname-or-ip-address]This option was added in Shorewall 5.0.13 and may be used on an administrative

A wildcard rule is considered to be redundant when it has the same ACTION and Log Level as the applicable policy.NoteOptimization level 1 is ignored when optimization level 4 is also

Normally, when Shorewall creates a Netfilter chain that relates to an interface, it uses the interface's logical name as the base of the chain name. The default value is empty which means no logging is performed.IP=[pathname]If specified, gives the pathname of the 'ip' executable. You can change the currently selected backend by echoing it's name into /proc/net/netfilter/nf_log.number.Example - change the IPv4 backend to LOG:sysctl net.netfilter.nf_log.2=ipt_LOGBeginning with Shorewall 4.6.4, you can configure the backend using the Shorewall Start On Boot What could cause humanity to migrate from land to water?

The output of my /sbin/iptables-save /tmp/iptabls.tmp is PHP Code: #Generatedbyiptables-savev1.3.0onThuJan1214:14:222006
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Beginning with Shorewall 5.0.10.1, you may specify systemd to use journelctl -r to read the log.LOGFORMAT=["formattemplate"]The value of this variable generate the --log-prefix setting for Shorewall logging rules. Pages: 1 #1 2013-02-11 18:27:13 scar Member From: Hungary Registered: 2009-10-01 Posts: 418 [SOLVED] shorewall logging / dmesg flooded... I think you were lookiing for this: http://www.shorewall.net/shorewall_logging.html Offline #3 2013-02-13 08:38:12 scar Member From: Hungary Registered: 2009-10-01 Posts: 418 Re: [SOLVED] shorewall logging / dmesg flooded... Must be >= TC_BITS and <= PROVIDER_OFFSET (if PROVIDER_OFFSET > 0).

If not specified, CLEAR_TC=Yes is assumed.COMPLETE=[Yes|No]Added in Shorewall 4.4.12. If it is set to No or no, you must add these addresses yourself using your distribution's network configuration tools.If this variable is not set or is given an empty value See MASK_BITS above for default value.PROVIDER_OFFSET=[number]IfAdded in Shorewall 4.4.26. Why is this funny?

They require AUDIT_TARGET in the kernel and iptables.The BLACKLIST_DISPOSITION setting has no effect on entries in the BLACKLIST section of shorewall-rules (5). For example, if the logical name for an interface is OAKLAND, then the input chain for traffic arriving on that interface would be 'OAKLAND_in'. JustinHoMi View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by JustinHoMi 01-11-2006, 04:05 AM #7 xxx_anuj_xxx Member Registered: Jun 2004 Location: Bharat If set to the empty value ( SMURF_LOG_LEVEL="" ) then smurfs are not logged.STARTUP_ENABLED={Yes|No}Determines if Shorewall is allowed to start.

CONFIG_PATH is specifies as a list of directory names separated by colons (":"). Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community. Previously, when TC_EXPERT=No, packets arriving through 'tracked' provider interfaces were unconditionally passed to the PREROUTING tcrules. This is done to help ensure that the addresses can be added with the specified labels but can have the undesirable side effect of causing routes to be quietly deleted.

It contains a “printf” formatting template which accepts three arguments (the chain name, logging rule number (optional) and the disposition). If not specified, ${VARDIR}/shorewall/lock is assumed (${VARDIR} is normally /var/lib but can be changed when Shorewall-core is installed -- see the output of shorewall show vardir).LOG_BACKEND=[backend]Added in Shorewall 4.6.4. If not assigned or if assigned an empty value, /var/log/messages is assumed. See http://www.shorewall.net/Docker.html for additional information.DONT_LOAD=[module[,module]...]Causes Shorewall to not load the listed kernel modules.DYNAMIC_BLACKLIST={Yes|No||ipset[-only][,option[,...]][:[setname][:log_level|:log_tag]]]}Added in Shorewall 4.4.7.

It may have the value DROP if the packets are to be dropped or REJECT if the packets are to be replied with an ICMP port unreachable reply or a TCP