TCPDMATCH(8) | Maintenance Commands and Procedures | TCPDMATCH(8) |
tcpdmatch - tcp wrapper oracle
tcpdmatch [-d] [-i inet_conf] daemon client
tcpdmatch [-d] [-i inet_conf] daemon[@server] [user@]client
tcpdmatch predicts how the tcp wrapper would handle a specific request for service. Examples are given below.
The program examines the tcpd access control tables (default /etc/hosts.allow and /etc/hosts.deny) and prints its conclusion. For maximal accuracy, it extracts additional information from your inetd network configuration file.
When tcpdmatch finds a match in the access control tables, it identifies the matched rule. In addition, it displays the optional shell commands or options in a pretty-printed format; this makes it easier for you to spot any discrepancies between what you want and what the program understands.
The following two arguments are always required:
When a client host name is specified, tcpdmatch gives a prediction for each address listed for that client.
When a client address is specified, tcpdmatch predicts what tcpd would do when client name lookup fails.
Optional information specified with the daemon@server form:
Optional information specified with the user@client form:
To predict how tcpd would handle a telnet request from the local system:
tcpdmatch in.telnetd localhost
The same request, pretending that hostname lookup failed:
tcpdmatch in.telnetd 127.0.0.1
To predict what tcpd would do when the client name does not match the client address:
tcpdmatch in.telnetd paranoid
On some systems, daemon names have no `in.' prefix, or tcpdmatch may need some help to locate the inetd configuration file.
The default locations of the tcpd access control tables are:
/etc/hosts.allow
/etc/hosts.deny
tcpdchk(8), tcpd configuration checker hosts_access(5), format of the tcpd access control tables. hosts_options(5), format of the language extensions. inetd.conf(5), format of the inetd control file. inetd(8), how to invoke tcpd from inetd using the libwrap library. inetadm(8), managing inetd services in the Service Management Framework.
Wietse Venema (wietse@wzv.win.tue.nl) Department of Mathematics and Computing Science Eindhoven University of Technology Den Dolech 2, P.O. Box 513 5600 MB Eindhoven, The Netherlands
See attributes(7) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
Interface Stability | Committed |
September 15, 2011 | OmniOS |