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76%
Dispatches from the world of IT
30.11.2025
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of your site, they'd receive an Amazon S3 error. Now, however, you can specify a static document and direct visitors there. And, you can create custom error documents, so if users hit a page that should
76%
Monitoring daemons with shell tools
30.11.2025
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© Shariff Che'Lah, 123RF.com
is not accessible! ****************" >> dba.log 15 /usr/local/etc/rc.d/002pgsql.sh start 16 sleep 15 17 psql -U monitor -d monitor -c "select * from watch;" 18 19 if [ $? -eq 0 ]; 20 21 then 22
76%
Getting started with I/O profiling
30.11.2025
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© Photosani, Fotolia.com
: Device name. rrqm/s : Number of read requests merged per second that were queued to the device. wrqm/s : Number of write requests merged per second that were queued to the device. r/s : Number
75%
Archiving email and documents for small businesses
30.11.2025
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© Pavlenko Evgenly, fotolia.com
1 split.sh 01 #! /bin/sh 02 for i in `ls -1 archive/cur` 03 do 04 # Define name component for the individual mail directory 05 pref=`date +%Y-%m-%d-%H-%M-%S` 06 07 # Push mail
75%
Finding cracks with Nmap, Portbunny, and Nessus
30.11.2025
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Fotoflash, Fotolia.com
to tell the program to do so by setting the -sT switch. Optionally, you can tell the application which range of ports to scan by setting the -p parameter. Nmap will accept both IP addresses and domain
75%
Configuring the JBoss application server
30.11.2025
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HONGQI ZHANG, 123RF.com
for Enterprise JavaBeans (EJB) [2] and a web server based on Tomcat that supports servlets and JavaServer Pages (JSP). History and Architecture JBoss was developed in the 1990s by Marc Fleury as a pure EJB
75%
An IP-based load balancing solution
30.11.2025
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arsgera, 123RF
virtual webs.test.com { 15 active = 1 16 address = 192.168.1.250 eth0:0 17 vip_nmask = 255.255.255.0 18 port = 80 19 send = "GET / HTTP/1.0\r\n\r\n" 20 expect = "HTTP" 21
75%
Targeted defense against brute force attacks
30.11.2025
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Andrii IURLOV, 123RF.com
specific ports with sshguard, you can use the --destination-ports parameter to find them. For example, sudo iptables -A INPUT -m multiport -p tcp --destination-ports 21,22 -j sshguard would block only
75%
Building a custom Cyberdeck
07.10.2025
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Lead Image © Lucy Baldwin, 123RF.com
and furious as rapid troubleshooting demands. It's time to give this project another try, but with the modern hardware of the 2020s! Figure 1: The diminutive
75%
Develop a simple scanning application with the NAPS2 SDK
27.05.2025
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ScanOptions 21 { 22 Device = device, 23 PaperSource = PaperSource.Feeder, 24 PageSize = PageSize.A4, 25 Dpi = 300 26 }; 27 28 var images = new List

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