radtool(1) General Commands Manual radtool(1) NAME radtool -- Realtime Anomaly Detector (RAD) tool SYNOPSIS [-dhINV] [-c cfile] [-n config] [-E ciphers] [-F fields] [commands] DESCRIPTION radtool connects and sends Advanced Exchange Access (AXA) protocol messages to Realtime Anomaly Detector (RAD) servers and displays the responses. It can also tunnel SIE data like radtunnel(1). radtool is a programming example for the Advanced Exchange Access (AXA) ap- plications programming interface to RAD servers, the AXA protocol. It also demonstrates the use of the AXA helper library, libaxa.a. Start using radtool with the connect command described below. Use one or more anomaly commands to specify interesting patterns of SIE messages or IP packets. Limit the number of packets or messages transmitted from the SRA server or displayed with the rate limit and count commands. Unless more output is enabled with the verbose command, most messages or packets are displayed in two lines. The first line includes the channel number on which it was received, the SIE message vendor of the message, the name of the field that caused the message to be selected, and the contents of the field. The second line is a summary of the message or packet. When more verbose output is enabled or when radtool does not understand the message, IP packets are printed in ASCII and SIE messages are printed in the standard nmsg presentation format also seen from nmsgtool(1). OPTIONS The following arguments are available: -c cfile reads commands from cfile as if the first command string on the com- mand line were "source cfile". -d turns on tracing and debugging reports. Additional -d turn on more messages. -E ciphers specifies the TLS encryption ciphers to use with apikey connections. -I enables insecure mode for apikey authentication. When enabled, client connections will not be performed via TLS. -n config overrides the default location of the config file that contains AXA client configuration data. Details are below. The default is ~/.axa/config. -F fields overrides the default location of the fields file that defines rela- tionships among and semantics among SIE message fields. The default is $AXACONF/fields, ~/.axa/fields, or /usr/local/etc/axa/fields. -h display options summary. -N instructs radtool to not display a command line prompt. -V displays the version of radtool and its preferred version of the AXA protocol. commands are optional commands strings that are executed before radtool starts accepting commands from the use. There can be more than one string of commands. Multiple commands within a string are separated by semi- colons. COMMANDS radtool executes commands read from the standard input. Command history is available if the standard input is a terminal. Multiple commands can be specified at once by separating them with semicolons. The following com- mands are available: accounting Tell the server to report counts of packets seen, missed, sent, and lost. alias List the available connection aliases (culled from the axa client con- fig file). buffer Toggle NMSG output buffering. By default, this is enabled, which buffers network writes until the container is full. If disabled, NMSG payloads are emitted as quickly as possible. ciphers [cipher-list] set the list of ciphers for the next TLS connection or show the cur- rent contents of the list. connect [alias | apikey:<apikey>@host,port | tcp:[user@]host,port | unix:[user@]/ud/socket] By itself connect shows the current connection. Otherwise connect to the specified RAD server. alias: use a connection alias specified in the AXA config file (see FILES). apikey: identify and authenticate the user via a Farsight Security provided apikey. tcp: identify the user for clear text communication via the TCP/IP host,port pair. unix: identify the user for communication over a local UNIX domain socket. count [N | off] sets terminal output to stop displaying packets after a number of packets (including immediately with a number of 0), show the currently remaining count, or turn off the packet count limit. debug [on | off | quiet | N] increases, decreases or shows the level of debugging and tracing mes- sages that is also controlled by -d. Debug quiet turns off reports of successful AXA commands. disconnect disconnects from the RAD server. error mode [disconnect | off] disconnects from the RAD server and exits when the server reports an error or the connection breaks. In the default mode error mode off, errors are only reported. exit Ends the program. go Tell the RAD server to resume sending data. radtool. help [command] lists all commands or describes a single command. mode [SRA | RAD] Show the current command mode or expect to connect to an SRA or RAD server. The default command mode is set by the name of the program. nop sends a command to the server that does nothing but test the connec- tion. forward Start, stop or show the state of forwarding packets received from the server. Received NMSG messages and IP packets can be forwarded as NMSG messages to a TCP or UDP port. Received IP packets can be for- warded as a pcap stream to a file, to a FIFO created with separately with mkfifo(1), or in Ethernet frames on a named network interface to a 48-bit address. nmsg:[tcp:|udp:]host,port [count] sends nmsg messages to the UDP or optional TCP host name and port number host,port. UDP is the default. IP packets are con- verted to NMSG messages. nmsg:file:path [count] sends binary nmsg messages to the file named path. IP packets are converted to nmsg messages. nmsg:file_json:path [count] sends nmsg newline-delimited json blobs to the file named path. Note that newline-delimited json outputs can incur a slight per- formance penalty versus binary nmsg outputs for "high-velocity" outputs. This is because the underlying nmsg json output object is unbuffered and results a filesystem write for every forwarded nmsg. pcap[-fifo]:path [count] sends IP packets to a file or FIFO named path for examination with tcpdump(1) or another packet tracing tool. An ordinary file is the default. Only IP packets but not nmsg messages are sent. pcap-if:[dst/]ifname [count] transmits IP packets on the network interface named ifname for examination with tcpdump(1) or another packet tracing tool. dst optionally specifies a destination 48-bit Ethernet address other than all 0:0:0:0:0:0 default. This output usually requires that radtool be run by root. Only IP packets but not nmsg messages are sent. If count is present, forwarding stops after that many packets. pause Tell the RAD server to stop sending data. rate limit [[-|MAX|per-sec] [-|NEVER|report-secs]] Tell the RAD server to report its per-second packet rate limit or set the rate limit and the minimum interval between rate limit reports. Hits in excess of the rate limit are discarded by the server. radd Change to RAD mode. sample [X%] Get and optionally set the percentage of hits that the RAD servers sends. sleep x.y Do nothing for x.y seconds. source filename reads and executes commands from a file. srad Change to SRA mode. status Show information about the current connection state including time connected. trace N Set the server trace level to N. user name sends a username to the server. verbose [on | off | N] controls the length of SIE message and IP packet descriptions. The default, verbose off, generally displays one line summaries. version displays the version of radtool and its version of the AXA protocol. window [bufsize] Get and optionally set the TCP output buffer size or maximum send win- dow used by the server. zlib Toggle NMSG zlib container compression. [tag] delete [anomaly [all]] With a tag (numeric label), stop or delete the specified anomaly. Without a tag (or with the keyword "all"), delete all anomalies. [tag] stop [anomaly [all]] Synonym for the delete command. tag watch {ip=IP[/N][(shared) | dns=[*.]dom[(shared)]} Specify IP addresses or domain names relevant to the anomaly detection modules specified by subsequent anomaly commands with the same tag. The optional [(shared)] suffix marks IP addresses or domains that are not exclusively used by the RAD client. ip=IP[/n] The IPv4 or IPv6 address IP specifies a host address un- less a prefix length is specified. dns=[*.]dom watches for the domain anywhere in the IP packets or SIE messages on the enabled channels. A wild card watches for occurrences of the domain and all sub-domains. tag anomaly name [parameters] Start the named anomaly detector module. The relevant domains and IP addresses are specified by preceding watch commands with the same tag. The parameters for each module are described it its man page. Tag is a number that labels the module and the relevant watches as well as other modules using the same watches. [tag] list If a tag is present, list the set of watches and anomaly detection modules with that tag. Without a tag, list all active as well as available anomaly detection modules. [tag] get Synonym for the list command. runits Ask the server to report user's current RAD Units balances. FILES fields defines relationships among and meanings of SIE message fields. Its contents should rarely if ever need to be changed. ~/.axa/config contains AXA client configuration data. Currently supported are connection aliases that provide the user with a facility to create shortcut mnemonics to specify the RAD server connection string. For example: $ cat ~/.axa/config # RAD alias:rad-apikey=apikey:<elided>@example.com,1012 If the user wanted to connect to RAD, she would only have to remem- ber "rad-apikey" and could do: $ radtool sra> connect rad-apikey This config file is shared for radtool, sratool, sratunnel, and radtunnel. Because this file can contain sensitive information such as apikeys, it must not be readable or writeable to anybody other than "owner" or sratool will not load. ~/.sratool_history contains the command history from previous radtool and/or sratool invocations ENVIRONMENT VARIABLES If set, AXACONF specifies the AXA configuration directory instead of, ~/.axa or /usr/local/etc/axa. SEE ALSO sratool(1), sratunnel(1), radtunnel(1), mkfifo(1), and nmsgtool(1). August 27, 2026 radtool(1)
NAME | SYNOPSIS | DESCRIPTION | FILES | ENVIRONMENT VARIABLES | SEE ALSO
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