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43%
Monitoring daemons with shell tools
30.11.2025
Home »  Archive  »  2010  »  Issue 1: System...  » 
© 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
43%
Denial of service defense
26.03.2025
Home »  Archive  »  2025  »  Issue 86: Data...  » 
Lead Image © Russell Shively, 123RF.com
was received [2]. Modular Extensions for Apache Apache version 2.2 and newer has a mod_reqtimeout extension that lets you configure the RequestReadTimeout option, which you can use to set different request
43%
Bottom: The new top
07.10.2025
Home »  Archive  »  2024  »  Issue 80: Threa...  » 
Lead Image © Lucy Baldwin, 123RF.com
gestures (+ or – will produce the same outcome) by compressing or expanding the time base represented on the x -axis. Figure 5 demonstrates the result of this action on the network monitoring widget, created
43%
Dispatches from the world of IT
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
 
Ridge National Laboratory, and it features 560,640 processors, including 261,632 NVidia K20x accelerator cores. Sequoia, an IBM BlueGene/Q system, now occupies the No. 2 spot on the list, with 16
43%
Virtualization with KVM
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
systems on your virtual machines, the Linux host system must provide a 64-bit kernel. To determine this, run the uname -m command, and it should output a value of x86_64 or amd64. You can run virtual
43%
Introduction to OpenMP programming
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© Frank Rohde, 123RF.com
application. Today, it's very easy to get laptops with at least two, if not four, cores. Desktops can easily have eight cores with lots of memory. You can also get x86 servers with 64 cores that access all
43%
Securing email communication with GnuPG
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Photo by Amol Tyagi on Unsplash_Key.jpg
output similar to ed25519 2022-08-29 [SC] [expires: 2027-08-20] uid [ultimate] Name name@example.org updgef8corpy81hia1rhd8npqiti6nzf @example.org In the output you will see a 32-character string
43%
Get the best out of your bandwidth with tc
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Russell Shively, 123RF.com
help point out which line is the culprit. Simply run your script as follows: # bash -x ./bandwidth_throttler Typing dmesg could give direct feedback from the kernel too. Cooking with Gas Now I
43%
The next generation of Internet connectivity
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
ktsdesign, 123RF.com
:%02x%02x\n' 19 83 20 235 Note that 6to4 relays (the machines that handle your traffic) use the anycast address of 192.88.99.1 (2002:c058:6301::), so finding out who is actually handling your traffic
43%
Zarafa on the Univention Corporate Server
30.11.2025
Home »  Archive  »  2011  »  Issue 6: Perfor...  » 
© Andres Rodriguez, 123RF.com
.list file below /etc/apt/sources.list.d/, taking care that its name starts with a number greater than the last existing source list file (typically 20) – for example, 25_zarafa4ucs.list. Depending on the UCS

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