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28%
Detecting and analyzing man-in-the-middle attacks
03.02.2022
Home »  Archive  »  2022  »  Issue 67: syst...  » 
Photo by Soner Eker on Unsplash
arp -a (Figure 1). On Linux computers ip n s Figure 1: The ARP cache can be displayed from the Windows command line. does the same thing
28%
A GUI for Warewulf 4
06.05.2025
Home »  Articles  » 
I think virtually everyone in HPC knows the Warewulf open source cluster provisioning and management tool. I wrote about Warewulf starting with Warewulf 3, followed by a series on Warewulf 4. Since
28%
Enterprise communication with IRC
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© anyka, 123RF.com
. For other distros, the Ratbox source files are available at the project website [3]. After unzipping, you can install with the classic three-command trick of configure, make, and make install. That Ratbox
28%
Registry for Docker images
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Viktoriya Malova, 123RF.com
/docker-registry $ htpasswd -Bbn oliver T0Ps3crEt | sudo tee /etc/docker-registry/htpasswd oliver:$2y$05$lAmkjHRcR0.TK52/rHR/Pe86AGZqpRleXenHVT/eabFe8He5UZiPu $ docker run -p 5000:5000 --name registry -v /etc
28%
Debugging the Linux kernel with the Qemu emulator
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Daniela Mangiuca, 123RF.com
qemu_x86_defconfigmake menuconfig (build-option, Kernel-Version 3.2, gdb, tty1)makemake linux-menuconfig (debug info) make 3. Compile the module and copy it to the root directory:cd driverexport CROSS
28%
New Monitoring Tools
14.04.2021
Home »  HPC  »  Articles  » 
A long time ago, I was a system administrator for a couple of HPC systems, but I also inherited two HP (Hewlett-Packard) N-class servers (mainframes). Along with two WORM storage units, these were
28%
Monitoring events with the Audit daemon
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © alphaspirit , 123RF.com
. Listing 1 auditd.conf log_file = /var/log/audit/audit.log log_format = RAW log_group = root priority_boost = 3 flush = INCREMENTAL freq = 20 num_logs = 5 disp_qos = lossy dispatcher = /sbin
28%
Benchmarking a new architecture
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Lead Image © Lucy Baldwin, 123RF.com
-V architecture [3] (Figure 2). RISC-V is a relatively recent open source CPU instruction set available royalty-free and has successfully drawn interest from more than a dozen chip suppliers so far. It cannot yet
28%
News for Admins
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
 
impacted platforms at risk. Systems using ME Firmware versions 11.0/11.5/11.6/11.7/11.10/11.20, SPS Firmware version 4.0, and TXE version 3.0 are impacted." The affected products include the sixth, seventh
28%
Managing Linux systems with Spacewalk
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © NASA
->{'label'} . "\n"; 13 } 14 15 $client->call('auth.logout', $session); The Spacewalk API naturally also lets you handle more complex tasks, such as creating or modifying software and configuration channels

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