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uif: Tool for generating optimized packetfilter rules


uif - Tool for generating optimized packetfilter rules


uif [-dptW] [-b base] [-c config_file] [-C config_file] [-D bind_dn] [-r ruleset] [-R ruleset] [-s server] [-T time] [-w password]


This manual page documents the uif command. It is used to generate optimized iptables(8) packetfilter rules, using a simple description file specified by the user. Generated rules are provided in iptables-save(8) style. uif can be used to read or write rulesets from or to LDAP servers in your network, which provides a global storing mechanism. (LDAP support is currently broken, note that you need to include the uif.schema to your slapd configuration in order to use it.) uif.conf(5) provides an easy way to specify rules, without exact knowledge of the iptables syntax. It provides groups and aliases to make your packetfilter human readable. Keep in mind that uif is intended to assist you when designing firewalls, but will not tell you what to filter.


The options are as follows: -b base Specify the base to act on when using LDAP based firewall configuration. uif will look in the subtree ou=filter, ou=sysconfig, base for your rulesets. -c config_file This option specifies the configuration file to be read by uif. See uif.conf(5) for detailed informations on the fileformat. It defaults to /etc/uif/uif.conf. -C config_file When reading configuration data from other sources than specified with -c you may want to convert this information into a textual configuration file. This options writes the parsed config back to the file specified by config_file. -d Clears all firewall rules immediatly. -D bind_dn If a special account is needed to bind to the LDAP database, the account dn can be specified at this point. Note: you should use this when writing an existing configuration to the LDAP. Reading the configuration may be done with an anonymous bind. -p Prints rules specified in the configuration to stdout. This option is mainly used for debugging the rule simplifier. -r ruleset Specifies the name of the ruleset to load from the LDAP database. Remember to use the -b option to set the base. Rulesets are stored using the following dn: cn=name, ou=rulesets, ou=filter, ou=sysconfig, base, where name will be replaced by the ruleset specified. -R ruleset Specifies the name of the ruleset to write to the LDAP database. This option can be used to convert i.e. a textual configuration to a LDAP based ruleset. Like using -r you've to specify the LDAP base to use. Target is cn=name, ou=rulesets, ou=filter, ou=sysconfig, base, where name will be replaced by the ruleset specified. -s server This option specified the LDAP server to be used. -t This option is used to validate the packetfilter configuration without applying any rules. Mainly used for debugging. -T time When changing your packetfiltering rules remotely, it is usefull to have a test option. Specify this one to apply your rules for a period of time (in seconds). After that the original rules will be restored. -w password When connecting to the LDAP server, you may need to authenticate via passwords. If you really need to specify a password, use this option, otherwise use -W and enter it interactivly. -W Activate interactive password query for LDAP authentication. uif is meant to leave the packetfilter rules in a defined state, so if something went wrong during the initialisation, or uif is aborted by the user, the rules that were active before starting will be restored. Normally you will not need to call this binary directly. Use the init script instead, since it does the most common steps for you.
Configuration files are located in /etc/uif.
uif.conf(5) iptables(8)


This manual page was written by Cajus Pollmeier <pollmeier@gonicus.de> and Jorg Platte <joerg.platte@gmx.de>, for the Debian GNU/Linux system (but may be used by others). UIF(8)

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