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23%
ASCII-based monitoring tools
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © tele52, 123RF.com
A long time ago, I was a system administrator for a couple of HPC systems, but I also inherited two Hewlett-Packard (HP) N-class servers (mainframes). Along with two WORM storage units, these were
23%
Favorite benchmarking tools
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © Lucy Baldwin, 123RF.com
of the specified command by default, but the minimum number of runs can be tuned manually (-m). Returning again to the same sleep [6] example I used previously, I show a snapshot of the interactive progress report
23%
Configuration management and automation
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © Valerijs Kostreckis, 123RF.com
package before installing: $ wget http://dl.bintray.com/rundeck/rundeck-deb/rundeck-2.6.7-1-GA.deb $ sudo dpkg -i rundeck-2.6.7-1-GA.deb Installing a package is practical because it integrates a Rundeck
23%
A Distributed SQL Database
03.08.2023
Home »  Archive  »  2023  »  Issue 76: Energ...  » 
Photo by Sonika Agarwal on Unsplash
, contiguous chunks called ranges, which are typically 64MB in size. These ranges are replicated across multiple nodes by the Raft consensus algorithm, ensuring strong consistency and fault tolerance. On top
23%
Understanding the Status of Your Filesystem
18.06.2014
Home »  HPC  »  Articles  » 
 = os.open(fileloc, os.O_RDONLY)         junk = os.fstat(FILE)         size = junk[6]         atime = junk[7]         mtime = junk[8]         ctime = junk[9]         uid = junk[4]         gid = junk[5]         print "   File: %s size: %s atime
23%
Blending Java with other programming languages
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © Ivan Mikhaylov, 123RF.com
[...] 20 String line = readlineImpl(prompt); 21 if ((line != null) && (addToHist)) { 22 addToHistory(line); 23 } 24 return line; 25 } 26 27 public static void add
23%
Look for file changes and kick off actions with Watchman
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © leksele, 123RF.com
] 20 } 21 ] 22 } 23 ] 24 } The script that performs the rsync operation, sync.sh, will look like Listing 3. Your script might be more complex (e.g., by adding some sort
23%
Nagios on a Rasp Pi 3 with NEMS
09.10.2017
Home »  Archive  »  2017  »  Issue 41: Kuber...  » 
Lead Image © Chris Gendreau; Fotolia
program (e.g., PuTTY), you connect to the server on port 22 with the reserved IP address. The default username is pi , and the default password is raspberry (Figure 1). Now enter sudo nems
23%
Elephant Shed PostgreSQL appliance
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © victor zastolskiy, 123RF.com
and visualize all kinds of database metrics, pgBadger [4] to collect and analyze the log, pgBackRest [5] to define an effective backup strategy, pgAdmin4 [6] to administer the data housed within the server
23%
News for Admins
28.11.2023
Home »  Archive  »  2023  »  Issue 78: Domai...  » 
 
://medium.com/@mitrecaldera/announcing-mitre-caldera-for-ot-47c6f22a676d), Caldera for OT builds on that functionality, "offering 29 distinct OT abilities to the hundreds of existing enterprise-focused abilities already included with Caldera." These new plugins

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