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Wed Aug 26 10:00:38 CDT 2009 Slackware 13.0 x86_64 is released as stable! Thanks to everyone who helped make this release possible -- see the RELEASE_NOTES for the credits. The ISOs are off to the replicator. This time it will be a 6 CD-ROM 32-bit set and a dual-sided 32-bit/64-bit x86/x86_64 DVD. We're taking pre-orders now at store.slackware.com. Please consider picking up a copy to help support the project. Once again, thanks to the entire Slackware community for all the help testing and fixing things and offering suggestions during this development cycle. As always, have fun and enjoy! -P.
35 lines
1.3 KiB
Groff
35 lines
1.3 KiB
Groff
.\" -*- nroff -*-
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.ds g \" empty
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.ds G \" empty
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.\" Like TP, but if specified indent is more than half
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.\" the current line-length - indent, use the default indent.
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.de Tp
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.ie \\n(.$=0:((0\\$1)*2u>(\\n(.lu-\\n(.iu)) .TP
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.el .TP "\\$1"
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..
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.TH IPMASK 8 "29 April 2007" "Slackware Version 12.0.0"
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.SH NAME
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ipmask \- determine network and broadcast addresses given a decimal netmask and IP address.
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.SH SYNOPSIS
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.B ipmask <decimal netmask> <decimal IP address>
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.BI packagename
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.SH DESCRIPTION
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.B ipmask
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is a simple program to calculate broadcast and network addresses from a decimal netmask and a decimal IP address. It is used in the Slackware networking script /etc/rc.d/rc.inet1, and in the netconfig script.
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.SH OPTIONS
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.TP
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.B \<decimal netmask>
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A decimal netmask, such as: 255.255.255.0
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.TP
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.B \<decimal IP address>
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A decimal IP address, such as: 192.168.168.168
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.SH EXAMPLE
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Using the above sample netmask and IP address, here's an example:
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.TP
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$ ipmask 255.255.255.0 192.168.168.168
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.TP
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192.168.168.255 192.168.168.0
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.TP
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The program returns first the corresponding broadcast address, and then the network address.
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.SH AUTHOR
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Copyright 1994 by David Niemi. Written in about 30 minutes on 13 Aug. The author places no restrictions on the use of this program, provided that this copyright is preserved in any derived source code.
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