SYNOPSIS

       tcplist  [ -n ] [ -N ] [ -T ] [ -s ] [ -v ] [ -V ] [ -f filename ] [ -t
       timeout ]

DESCRIPTION

       Tcplist lists all the TCP connections to or from the machine it is  run
       on.  If any of the remote machines are running Ident-compilant servers,
       this is queried, and the results listed for each connection. Output  is
       by default in "user@address:portnum user@address:portnum" format.

       Ident queries are done using non-blocking I/O, for performance.

OPTIONS

       -T     Report  results  in  tabular format, with header. This format is
              probably easier to read, but harder to parse.

       -n     Don't resolve hostnames, but use host IP addresses instead.

       -N     Don't resolve port names. Use port numbers instead.

       -s     Show TCP servers running on this machine as well as  established
              connections.

       -v     Verbose mode: give a running commentary of what is being done.

       -V     Print version information and exit.

       -f filename
              Assume  the  hosts  listed in the specified file are not running
              Ident servers, and  should  not  be  queried.  Listing  terminal
              servers,  X  terminals,  PC's, and similar machines in this file
              can significantly speed up tcplist in some environments.

       -t timeout
              Use the specified timeout for Ident queries. The default timeout
              is 30 seconds.

FILES

       /etc/services, /etc/hosts

SEE ALSO

       netstat(8C),  hosts(5),  networks(5),  services(5),  tcp(4P), authd(8),
       RFC931, RFC1413, lsof(1/8)

HISTORY

       Written by John DiMarco at the University of Toronto, CSLab

BUGS

       The kernel's tables can change while tcplist is examining them,  creat-
       ing incorrect or partial displays.

       Excessively long strings returned by Ident servers may be truncated.