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18%
Targeted defense against brute force attacks
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Andrii IURLOV, 123RF.com
version [1]. The sshguard tool also speaks IPv6, is released under the BSD license, is easy to set up, and works without a configuration file. Supported Services At the time of writing, sshguard
18%
Sys Admin On the Go
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Laurent Davoust, 123RF.com
any time." Here, the second alert is set to be sent only between 6pm (1800 ) and 8am (0800 ) on any day (the first * ; use W for weekdays, or specify particular days with 0 , Sunday, through 6
18%
Business continuity for small to medium-sized enterprises
30.11.2025
Home »  Archive  »  2012  »  Issue 08: FreeNAS  » 
© Andrea, Fotolia.com
Box isn't typically supported by ShadowProtect; StorageCraft regularly publishes a list of the supported versions [6]. For details, refer to the "Version Chaos" and "System Requirements for the Host" boxes
18%
Virus scanner and content filter with AD authentication
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Denis Makarov, 123RF.com
# As of Squid 2.6 06 auth_param ntlm max_challenge_lifetime 60 minutes # these lines are 07 auth_param ntlm use_ntlm_autonegotiate on # not needed! 08 [...] More Granular Privileges Possible
18%
Search for domain controller vulnerabilities
28.07.2025
Home »  Archive  »  2025  »  Issue 88: 5 Net...  » 
Lead Image © varijanta, 123RF.com
their IP and MAC addresses and, if possible, the manufacturer. To run a port scan against the IP addresses 10.0.1.6 through 10.0.1.8, use: nmap -sP 10.0.1.6-8 The Nmap client sends an ARP packet
18%
Adding high availability to a Linux VoIP PBX
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Lead Image © MIR, Fotolia.com
to learn more is the VoIP-Info [6] or Server Fault [7] website. However, for a simple PBX cluster, the above information is sufficient to begin implementation. Installing Prerequisites For this example, I
18%
Processor and Memory Metrics
12.02.2014
Home »  HPC  »  Articles  » 
) irq  (Linux, FreeBSD) softirq  (Linux) steal  (Linux ≥ 2.6.11) guest  (Linux ≥ 2.6.24) guest_nice  (Linux ≥ 3.2.0) The Python code for gathering CPU statistics isn’t too difficult: I
18%
Parallel Programming with OpenMP
21.11.2012
Home »  HPC  »  Articles  » 
Laplace equation using Jacobi iteration method 003 ! Kadin Tseng, Boston University, November 1999 004 ! 005 MODULE jacobi_module 006 IMPLICIT NONE 007 INTEGER, PARAMETER :: real4 = selected_real_kind(6
18%
Exploring PowerDNS
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © ladyann, 123RF.com
and records DNSSEC support (as of 3.x) Web-based management options DNS data stored in plain text (BIND compatible) IPv4 and IPv6, UDP/TCP, 100% compliant [3] MySQL, Postgre
18%
Introduction to OpenMP programming
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Frank Rohde, 123RF.com
, PARAMETER :: real4 = selected_real_kind(6,37) ! Real 008 INTEGER, PARAMETER :: real8 = selected_real_kind(15,307) ! Double Precision 009 REAL(real8), DIMENSION(:,:), ALLOCATABLE :: unew 010 REAL

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