Linux kernel versions 2.0 and 2.1 send SIGIO signal to any process exploit.
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strobe-classb 1.7 - strobe-classb is a very small, fast scanner which operates over class B networks and a perl script which uses it to scan for open e-mail relays.
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UCS Checker 1.0 - UCS Checker is a simple extensible network service checker written in perl, which is capable of checking that a variety of services are responding.
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