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Full Discussion: SSH attacks
Special Forums Cybersecurity SSH attacks Post 302568940 by jgt on Friday 28th of October 2011 05:53:06 PM
Old 10-28-2011
SSH attacks

The attached file contains 36 months data sorted in descending order by number of attempts and originating ip address.
Is it possible to block any type of communication with an ip address after so many (5 or 10) failed attempts. The documentation(for Openssh) says that it is possible to slow the login rate after so many (default 10) failed passwords, but that only seems to apply if the perpetrator logs in once and repeatedly enters passwords. If each attempt is only the first attempt then this rule does not apply.

Last edited by jgt; 10-28-2011 at 07:13 PM..
 

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slamrg.f(3)							      LAPACK							       slamrg.f(3)

NAME
slamrg.f - SYNOPSIS
Functions/Subroutines subroutine slamrg (N1, N2, A, STRD1, STRD2, INDEX) SLAMRG creates a permutation list to merge the entries of two independently sorted sets into a single set sorted in ascending order. Function/Subroutine Documentation subroutine slamrg (integerN1, integerN2, real, dimension( * )A, integerSTRD1, integerSTRD2, integer, dimension( * )INDEX) SLAMRG creates a permutation list to merge the entries of two independently sorted sets into a single set sorted in ascending order. Purpose: SLAMRG will create a permutation list which will merge the elements of A (which is composed of two independently sorted sets) into a single set which is sorted in ascending order. Parameters: N1 N1 is INTEGER N2 N2 is INTEGER These arguements contain the respective lengths of the two sorted lists to be merged. A A is REAL array, dimension (N1+N2) The first N1 elements of A contain a list of numbers which are sorted in either ascending or descending order. Likewise for the final N2 elements. STRD1 STRD1 is INTEGER STRD2 STRD2 is INTEGER These are the strides to be taken through the array A. Allowable strides are 1 and -1. They indicate whether a subset of A is sorted in ascending (STRDx = 1) or descending (STRDx = -1) order. INDEX INDEX is INTEGER array, dimension (N1+N2) On exit this array will contain a permutation such that if B( I ) = A( INDEX( I ) ) for I=1,N1+N2, then B will be sorted in ascending order. Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: September 2012 Definition at line 100 of file slamrg.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.2 Tue Sep 25 2012 slamrg.f(3)
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