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11%
Port Knocking
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © rasslava, 123RF.com
seq_timeout = 10 08 tcpflags = syn 09 command = /usr/sbin/iptables -A INPUT -s \ %IP% -p tcp --dport 22 -j ACCEPT 10 11 [closeSSH] 12 sequence = 9000
11%
A self-healing VM system
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © THISSATAN KOTIRAT , 123RF.com
_username }}" 05 password: "{{ Vv_password }}" 06 name: "{{ vm_name }}" 07 datacenter: "{{ Vv_datacent }}" 08 folder: "{{ Vv_folder }}" 09 state: poweredoff 10 when: vm
11%
Evaluating logfiles with Microsoft Log Parser Studio
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © Thomas Lammeyer, Fotolia.com
from systems such as the IIS, Microsoft Exchange ActiveSync, Exchange Web Services (EWS), or Outlook Web Access (OWA). Installation under .NET .NET Framework 4.x and Log Parser 2.2 [2] form the basis
11%
Nagios alerts implemented via VoIP
14.03.2013
Home »  Archive  »  2013  »  Issue 13: IPv6...  » 
© Zentilia, 123RF.com
=/opt/pjsua.conf 06 SOUNDFILE=/tmp/alert.wav 07 TEXT2WAVE=/usr/bin/text2wave 08 DURATION=20 09 NUMBER=01234567890 10 MESSAGE="Monitoring Alert" 11 12 # Setting a lock file 13 # We can't make more than one call 14
11%
Monitoring daemons with shell tools
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© Shariff Che'Lah, 123RF.com
#! /bin/sh 02 03 while true 04 do 05 06 zeit=$(date +%d.%m.%y\ %H:%M\ ) 07 08 psql -U monitor -d monitor -c "select * from watch;" 09 10 if [ $? -eq 2 ]; 11 12 then 13 14 echo "$time: Database
11%
Getting the most from your cores
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
Lead Image © ktsdesign, 123RF.com
lines of Python. The psutil documentation [6] discusses several functions for gathering CPU stats, particularly CPU times and percentages. Moreover, these statistics can be gathered with user
11%
Zuul 3, a modern solution for CI/CD
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © lightwise, 123RF.com
and supports a number of development platforms, like GitHub and Gerrit Code Review [6]. Zuul originated as OpenStack CI testing. For years, OpenStack, the Infrastructure-as-a-Service (IaaS) cloud [7], got all
11%
Develop a simple scanning application with the NAPS2 SDK
27.05.2025
Home »  Archive  »  2025  »  Issue 87: Light...  » 
; 05 06 public class HelloWorldSample 07 { 08 static async Task Main(string [] args) 09 { 10 await HelloWorldSample.Run(); 11 } 12 13 public static async Task Run() 14 { 15 using var scanning
11%
Accelerate web applications with Varnish Cache
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Aleksandr Frolov, 123RF.com
= 50ms; 07 .interval = 3s; 08 .window = 10; 09 .threshold = 8; 10 } 11 } 12 13 set beresp.grace = 12h; Changes on the Fly The reverse proxy not only delivers web pages
11%
Managing Storage with LVM
07.11.2023
Home »  HPC  »  Articles  » 
, mount the new filesystem and check it with the df  command. The Ubuntu 22.04 example can illustrate this process (Listing 6). Listing 6: LV Block Device for Filesystem $ sudo mkdir /mnt/test $ sudo mkfs.ext4

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