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17%
Finding cracks with Nmap, Portbunny, and Nessus
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Fotoflash, Fotolia.com
will default to this mode. You can select it manually by setting the -sS switch, as in nmap -sS www.lemon.com . Figure 3: The SYN scan is similar to the three
17%
Where Does Job Output Go?
11.09.2023
Home »  HPC  »  Articles  » 
the application(s); and so on. When the job finishes or the time allowed is exceeded, the job stops and releases the resources. As resources change in the system (e.g., nodes become available), the resource
17%
A self-healing VM system
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © THISSATAN KOTIRAT , 123RF.com
with timeout 15 seconds 03 if status != 0 for 3 cycles then exec "/usr/bin/ansible-playbook rebuild_node.yml" 04 if status != 0 for 3 cycles then exec "/usr/bin/mail -s 'Node 5 ping failed
17%
An IP-based load balancing solution
30.11.2025
Home »  CloudAge  »  Articles  » 
arsgera, 123RF
and least connected, and they are also the most commonly used in LVS clusters. Configuration Piranha [3] is a clustering product from Red Hat based on the LVS concept. It includes the IPVS kernel code ... 3
17%
Targeted defense against brute force attacks
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Andrii IURLOV, 123RF.com
, most likely, (3/2) x 15 seconds. Finally, -s defines the number of seconds to wait before sshguard "forgets" the attacker's IP address. The line sshguard -l /var/log/auth.log -s 20 instructs sshguard ... 3
17%
ZFS on Linux helps if the ZFS FUSE service refuses to work
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © Luis Louro, 123RF.com
in the form of a master boot record (MBR) or a GUID partition table (GPT) [3]. The tricks the expert used to revive RAID systems (Figure  1) did not help: Neither fdisk nor mmls – the forensic counterpart from
17%
Creating a private apt repository with reprepro
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © binkski, 123RF.com
-passphrase Several parameters in this file define the repository layout [2] [3], as follows: Origin: An optional field that describes the origin of the repository. You can select a free line of text. Label
17%
Building a custom Cyberdeck
07.10.2025
Home »  Archive  »  2025  »  Issue 89: Autom...  » 
Lead Image © Lucy Baldwin, 123RF.com
launched nary 20 years ago (Figure 1). Its underpowered early Atom CPU cannot support a modern graphical environment, but the intended use as a terminal in init 3 mode moots that concern entirely. Sadly, I
17%
Develop a simple scanning application with the NAPS2 SDK
27.05.2025
Home »  Archive  »  2025  »  Issue 87: Light...  » 
. Alternatively, you can search for vscode in the App Center and click the Install button. If you prefer the terminal, you can find detailed instructions for any Linux distribution online [3]. I also suggest
17%
Protecting your web application infrastructure with the Nginx Naxsi firewall
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Pansiri Pikunkaew, 123RF
systems. Listing 1 Load Balancer Configuration 01 upstream backend { 02 backend1.example.com server weight = 5; 03 server backend2.example.com max_fails fail_timeout = 10s = 5; 04

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