Section: User Contributed Perl Documentation (1)
update-inetd - create, remove, enable or disable entry /etc/inetd.conf
...] command argument
can be used to add, remove, enable or disable entries in
file (you can specify a different file by using the
option). After the /etc/inetd.conf
file has been changed,
will send a SIGHUP
signal to the inetd process to make
sure that inetd will use the new /etc/inetd.conf
file. For Perl scripts
you can also use the Perl module DebianNet
. See DebianNet
further information. update-inetd
can also be used to add entries that
are commented out by default. They will be treated like normal entries.
That also means that if you already have an entry that is commented out you
cannot add an entry for the same service without removing the old one first.
In accordance with the Debian Policy, update-inetd treats entries that
are prefixed with a single '#' character as commented out by a user. This
means that for a user to disable a service using update-inetd, and for the
service to remain disabled after upgrades, the user must run update-inetd
with --comment-chars '#' (see relevant option below). Conversely, package
maintainer scripts should not override the default comment chars (and when
they do, they must not use '#').
Also note that --enable and --remove will not be acted upon for service
entries that are commented out using anything but the value specified with
--comment-chars (or the default value if none is specified).
- --add entry-line
Add an entry to /etc/inetd.conf. A description of the entry-line format
can be found in the inetd(8) or inetd.conf(5) manual pages (or just
look at /etc/inetd.conf). In order to prevent the shell from changing
your entry-line definition you have to quote the entry-line using
single or double quotes. You can use tabs (tab character or \t) and spaces
to separate the fields of the entry-line. To add the entry-line to a
specific section in the /etc/inetd.conf file please use the --group
If you are trying to add an entry which already exists, update-inetd
will not add the entry. For uncommented entries it will do nothing and
for entries that are commented out by the comment-chars (see option
--comment-chars) it will enable the existing entry. If you want to
completely replace an entry just remove the entry with the --remove
- --remove entry-regex
Remove an entry-line matching entry-regex (e.g. "telnet") from
/etc/inetd.conf. The entry-regex will be anchored at the beginning
of the entry line.
- --enable service[,...]
Enable service (e.g. "ftp") in /etc/inetd.conf. If you want to
enable more than one service you can use a comma-separated list of
services (no whitespace characters allowed).
- --disable service[,...]
Disable service (e.g. "ftp") in /etc/inetd.conf. If you want to
disable more than one service you can use a comma-separated list of
services (no whitespace characters allowed).
- --group groupname
Specify that the new entry should be placed in group groupname
(e.g. "MAIL``). If the group does not exist the entry will be placed
at the end of the file. The default group is ''OTHER".
This option is only relevant with the --add command.
- --pattern pattern
This option can be used to select a service. You only need this option if
you have two (or more) services of the same name.
This option is not relevant with the --add command.
- --comment-chars characters
update-inetd uses "#<off># " as the default comment characters.
You can use this option to specify different comment characters. This is only
necessary if you have to deal with two (or more) services of the same name.
If you do use this option, it is your responsibility to eventually remove
the commented out entry.
If you want to disable/remove more than one entry at a time you should use
this option. If you try to remove more than one entry at a time without
using this option the program will show a warning and prompt the user for
an explicit confirmation.
- --file filename
Use filename instead of /etc/inetd.conf.
Explain what is being done.
Enables debugging mode.
Print a usage message on standard output and exit successfully.
Print version information on standard output and exit successfully.
You have installed ssh (secure encrypting remote shell) and wish to
disable its unencrypted cousins:
update-inetd --comment-chars '#' --disable login,shell,exec,telnet
Using a single '#' character as a comment-char prevents update-inetd
to re-enable the services on package upgrades.
You think the clock on your computer is often inaccurate and wish to make
sure other computers cannot read it:
update-inetd --comment-chars '#' --disable time,daytime
You get the clock fixed:
update-inetd --enable time,daytime
You hear a rumor that inetd is easily crashed via a SYN attack against
the time and daytime services, you want to turn off only their TCP
versions, while leaving the analogous UDP services enabled:
update-inetd --comment-chars '#' --pattern tcp --disable time,daytime
You just finished writing a POP3 server and want to install the
/etc/inetd.conf entry from the Makefile:
update-inetd --group MAIL --add \