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Full Discussion: Restarting inetd picks up environment, passed on via telnet
Operating Systems Solaris Restarting inetd picks up environment, passed on via telnet Post 302660567 by mde on Friday 22nd of June 2012 04:00:47 PM
Old 06-22-2012
Quote:
Originally Posted by Corona688
Every process you create inherits a copy of your environment variables, and anything they create gets copies too.

I hadn't expected that would matter to a system service, though! I thought such things usually clear the environment then set a strict one of their own.
Exactly so. A system daemon (such as inetd) should surely be protected from inheriting it's parent process's environment in the normal way.

A warning to us all when writing service initialisation scripts, I think. Not inetd's fault, perhaps?

I was also surprised that this environment was inherited by telnet and by the login process. I somehow expected that a login shell would inherit only a predefined environment from the system configuration.
 

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LEARN ABOUT DEBIAN

update-inetd

UPDATE-INETD(8) 						      rlinetd							   UPDATE-INETD(8)

NAME

       update-inetd - manage rlinetd (and inetd) configuration entries

SYNOPSIS

       update-inetd [options] --add ENTRY

       update-inetd [options] --remove SERVICE

       update-inetd [options] --enable SERVICE

       update-inetd [options] --disable SERVICE

DESCRIPTION

       update-inetd  is  a  rlinetd's compatibility script, which can be used to by various Debian post-installation scripts to manage services in
       rlinetd configuration files directory /etc/rlinetd.d.

       update-inetd will spawn update-inetd.real(8) for managing entries in /etc/inetd.conf file.  Please see update-inetd.real(8) for details.

ACTIONS

       --add ENTRY
	      Adds an entry, which should be a line in a inetd.conf(5) format.

       --remove SERVICE
	      Removes a service.

       --enable SERVICE
	      Enables a service.

       --disable SERVICE
	      Disables a service.

OPTIONS

       --version
	      Prints version information on standard output and exit successfully.

       --debug
	      Enables debugging mode. Note the option is also passed to update-inetd.real(8).

       Any other option is passed directly to update-inetd.real(8).

FILES

       /etc/rlinetd.conf, /etc/rlinetd.d/*, /etc/inetd.conf

SEE ALSO

       update-inetd.real(8), inetd.conf(5), rlinetd.conf(5), inetd2rlinetd(8)

AUTHOR

       Robert Luberda <robert@debian.org>

Debian								 January 3rd, 2009						   UPDATE-INETD(8)
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