07-26-2008
try man hosts_allow --
There are two files: /etc/hosts.allow and /etc/hosts.deny each uses a kind of very simple control language based mostly on domain names or ip addresses.
Edit them to suit your requirements
Last edited by jim mcnamara; 07-26-2008 at 12:47 PM..
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IPCS(1) Linux Programmer's Manual IPCS(1)
NAME
ipcs - provide information on ipc facilities
SYNOPSIS
ipcs [-asmq] [-tclup]
ipcs [-smq] -i id
ipcs -h
DESCRIPTION
ipcs provides information on the ipc facilities for which the calling process has read access.
The -i option allows a specific resource id to be specified. Only information on this id will be printed.
Resources may be specified as follows:
-m shared memory segments
-q message queues
-s semaphore arrays
-a all (this is the default)
The output format may be specified as follows:
-t time
-p pid
-c creator
-l limits
-u summary
SEE ALSO
ipcrm(1), ipcmk(1)
CONFORMING TO
The Linux ipcs utility is not fully compatible to the POSIX ipcs utility. The Linux version does not support the -b and -o options, but
does support the -l and -u options not defined by POSIX. The portable application shall not use the -a, -b, -o, -l, and -u options.
AUTHOR
krishna balasubramanian (balasub@cis.ohio-state.edu)
AVAILABILITY
The ipcs command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
Linux 0.99 9 October 1993 IPCS(1)