Ubuntu Manpage: ipsvd - Internet protocol service daemon

NAME

       ipsvd - Internet protocol service daemon

SYNOPSIS

       ipsvd [-hp] [-l name] [-u user] [-i dir|-x cdb] [-t sec] host port prog

DESCRIPTION

       An  implementation of an internet protocol service daemon provides the command line interface as shown in
       SYNOPSIS above (additional options are possible), and  supports  pre-defined  instructions  for  handling
       connections  through  files in a instructions directory, and through a constant database, as described in
       ipsvd-instruct(5).

       Currently there are two implementations of an internet protocol service daemon: a TCP/IP service  daemon,
       tcpsvd(8), and an UDP/IP service daemon, udpsvd(8).  More internet protocol service daemons may appear in
       the future.

OPTIONS

-i dir read instructions for handling new connections from the instructions directory dir. See ipsvd-
instruct(5) for details.

-x cdb read instructions for handling new connections from the constant database cdb. The constant
database normally is created from an instructions directory by running ipsvd-cdb(8).

-t sec timeout. This option only takes effect if the -i option is given. While checking the
instructions directory, check the time of last access of the file that matches the clients address
or hostname if any, discard and remove the file if it wasn't accessed within the last sec seconds;
ipsvd does not discard or remove a file if the user's write permission is not set, for those files
the timeout is disabled. Default is 0, which means that the timeout is disabled.

-l name
local hostname. Do not look up the local hostname in DNS, but use name as hostname.

-u [:]user[:group]
drop permissions. Set uid and gid to the user's uid and gid, as found in /etc/passwd, before
running prog. If user is followed by a colon and a group, set the gid to group's gid, as found in
/etc/group, instead of user's gid. If group consists of a colon-separated list of group names,
set the group ids of all listed groups. If user is prefixed with a colon, the user and all group
arguments are interpreted as uid and gids respectively, and not looked up in the password or group
file. All supplementary groups are removed.

-h Look up the client's hostname in DNS.

-p paranoid. After looking up the client's hostname in DNS, look up the IP addresses in DNS for that
hostname, and forget about the hostname if none of the addresses match the client's IP address.
You should set this option if you use hostname based instructions. The -p option implies the -h
option.

SIGNALS

       If an ipsvd receives a TERM signal, it exists with 0.

AUTHOR