bbmessage.cgi - CGI utility used for proxying Xymon data over HTTP
bbmessage.cgi(8) is the server-side utility receiving Xymon messages
sent by the bb(1) utility over an HTTP transport. The bb utility
normally sends data over a dedicated TCP protocol, but it may use HTTP
to go through proxies or through restrictive firewalls. In that case,
the webserver must have this CGI utility installed, which takes care of
receiving the message via HTTP, and forwards it to a local Xymon server
through the normal Xymon transport.
The CGI expects to be invoked from an HTTP "POST" request, with the
POST-data being the status-message. bbmessage.cgi simply collects all
of the POST data, and send it off as a message to the Xymon daemon
running on IP 127.0.0.1. This destination IP currently cannot be
The CGI will return any output provided by the Xymon daemon back to the
requestor as the response to the HTTP POST, so this allows for all
normal Xymon commands to work.
bbmesage.cgi will only send data to a Xymon server through the loopback
interface, i.e. IP-address 127.0.0.1.
Access to the CGI should be restricted through webserver access
controls, since the CGI provides no authentication at all to validate
If possible, consider using the bbproxy(8) utility instead for native
proxying of Xymon data between networks.
bb(1), bbproxy(8), xymon(7)