G. Pape

# ipsvd - internet protocol service daemons

How to install ipsvd
Upgrading from previous versions of ipsvd

Benefits
How to use dietlibc

Examples

The `ipsvd` interface
The `tcpsvd` program
The `udpsvd` program

The ipsvd instructions
The `ipsvd-cdb` program

The `sslio` program (Linux only)

ipsvd is a set of internet protocol service daemons for Unix. It currently includes a TCP/IP service daemon, and a UDP/IP service daemon.

An internet protocol service (ipsv) daemon waits for incoming connections on a local socket; for new connections, it conditionally runs an arbitrary program with standard input reading from the socket, and standard output writing to the socket (if connected), to handle the connection. Standard error is used for logging.

ipsv daemons can be told to read and follow pre-defined instructions on how to handle incoming connections; based on the client's IP address or hostname, they can run different programs, set a different environment, deny a connection, or set a per host concurrency limit.

On Linux the network connection optionally can be encrypted using SSLv3.

Normally the ipsv daemons are run by a supervisor process, such as runsv from the runit package, or supervise from the daemontools package.

ipsvd can be used to run services normally run by inetd, xinetd, or tcpserver.

ipsvd is discussed on the <misc@list.smarden.org> mailing list. To subscribe send an empty email to <misc-subscribe@list.smarden.org>. Send an empty email to <misc-help@list.smarden.org> for more information about this list.

A mailing list archive is available at gmane.org.

Related links:

- ipsvd Debian package
- ipsvd FreeBSD port
- xinetd
- inetd
- ucspi-tcp
- netcat

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