FIREQOS(1) - Linux man page online | User commands

An easy to use but powerful traffic shaping tool.

Built 04 Nov 2017
fireqos(1) 3.1.5 fireqos(1)


fireqos - an easy to use but powerful traffic shaping tool


fireqos CONFIGFILE [start | debug] [ -- conf-arg ... ] fireqos { stop | clear_all_qos } fireqos status [name [ dump [class]]] fireqos { dump | tcpdump } name class [ tcpdump-arg ... ] fireqos { drops | overlimits | requeues } name


FireQOS is a program that helps you configure traffic shaping on Linux. Run without any arguments, fireqos will present some help on usage. When given CONFIGFILE, fireqos will use the named file instead of /etc/firehol/fire‐ qos.conf as its configuration. The parameter name always refers to an interface name from the configuration file. The parameter class always refers to a named class within a named interface. It is possible to pass arguments for use by the configuration file separating any conf-arg values from the rest of the arguments with --. The arguments are accessible in the con‐ figuration using standard bash(1) syntax e.g. $1, $2, etc.


start; debug Activates traffic shaping on all interfaces, as given in the configuration file. When invoked as debug, FireQOS also prints all of the tc(8) commands it executes. stop Removes all traffic shaping applied by FireQOS (it does not touch QoS on other in‐ terfaces and IFBs used by other tools). clear_all_qos Removes all traffic shaping on all network interfaces and removes all IFB devices from the system, even those applied by other tools. status Shows live utilisation for the specified interface. FireQOS will show you the rate of traffic on all classes, adding one line per second (similarly to vmstat, iostat, etc.) If dump is specified, it tcpdumps the traffic in the given class of the interface. tcpdump; dump FireQOS temporarily mirrors the traffic of any leaf class to an IFB device. Then it runs tcpdump(8) on this interface to dump the traffic to your console. You may add any tcpdump(8) parameters you like to the command line, (to dump the traffic to a file, match a subset of the traffic, etc.), for example this: fireqos tcpdump adsl-in voip -n will start a tcpdump of all traffic on interface adsl-in, in class voip. The pa‐ rameter -n is a tcpdump(8) parameter. Note When FireQOS is running in tcpdump mode, it locks itself and will refuse to run in parallel with another FireQOS altering the QoS, or tcpdumping other traffic. This is because FireQOS reserves device ifb0 for monitoring. If two FireQOS processes were allowed to tcpdump in parallel, your dumps would be wrong. So it locks itself to prevent such a case. drops Shows packets dropped per second, per class, for the specified interface. overlimits Shows packets delayed per second, per class, for the specified interface. requeues Shows packets requeued per second, per class, for the specified interface.




· fireqos.conf(5) - FireQOS configuration file · FireHOL Website ( · FireQOS Online PDF Manual ( · FireQOS Online Documentation ( · tc(8) ( - show / manipulate traffic control settings · tcpdump(8) ( - show / manipulate traffic control settings


FireHOL Team.
FireQOS Reference Built 04 Nov 2017 fireqos(1)
This manual Reference Other manuals
fireqos(1) referred by fireqos-class(5) | fireqos-conf(5) | fireqos-match(5) | fireqos-params-class(5) | fireqos-params-match(5) | vnetbuild(1)
refer to bash(1) | fireqos-conf(5) | tc(8) | tcpdump(8)
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