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grepcidr can be used to filter a list of IP addresses against
one or more Classless Inter-Domain Routing (CIDR) specifications,
or arbitrary networks specified by an address range. As with
grep, there are options to invert matching and load patterns
from a file. grepcidr is capable of comparing thousands or
even millions of IPs to networks with little memory usage and
in reasonable computation time.
grepcidr has endless uses in network software, including: mail
filtering and processing, network security, log analysis, and
many custom applications.
PR: ports/80315
Submitted by: Douglas Fraser <doug+ports@idmf.net>
16 lines
620 B
Plaintext
16 lines
620 B
Plaintext
grepcidr can be used to filter a list of IP addresses against one
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or more Classless Inter-Domain Routing (CIDR) specifications, or
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arbitrary networks specified by an address range. As with grep,
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there are options to invert matching and load patterns from a file.
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grepcidr is capable of comparing thousands or even millions of IPs
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to networks with little memory usage and in reasonable computation
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time.
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grepcidr has endless uses in network software, including: mail
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filtering and processing, network security, log analysis, and many
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custom applications.
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Author: Jem Berkes
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WWW: http://www.pc-tools.net/unix/grepcidr/
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