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48%
Building a HPC cluster with Warewulf 4
04.04.2023
Home »  Archive  »  2023  »  Issue 74: The F...  » 
Photo by Andrew Ly on Unsplash
x86_64 2.9.1-9.el8 baseos 393 k groff-base x86_64 1.22.3-18.el8 baseos 1.0 M hwloc-ohpc x86_64 2.7.0-3
48%
Warewulf 4 – Time and Resource Management
17.01.2023
Home »  HPC  »  Articles  » 
                   x86_64 2.9.1-9.el8                           baseos          393 k  groff-base                 x86_64 1.22.3-18.el8                         baseos          1.0 M  hwloc-ohpc                 x86_64 2.7.0-3
48%
A Password Protection Service
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © bluebay, 123RF.com
such as SSH, FTP, IMAP, POP3, Sendmail, and others are susceptible to brute force and dictionary attacks, because username/password combinations are inherently weak protections. Fail2ban allows you to set up
48%
Exploring OpenShift – Red Hat's next-generation PaaS tool
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
(C) Markus Feilner, CC-BY-SA 4.0
cloud offerings from Red Hat. Gears and Cartridges Like other PaaS technologies, OpenShift is generally focused on web development. Only Ports 22, 80, 443, 8000, and 8443 are available from the outside
48%
Combining Directories on a Single Mountpoint
19.05.2014
Home »  HPC  »  Articles  » 
.325 56.328 58.231 67.588 14,100 2,860 SSHFSM OPT3 54.595 61.111 67.107 67.379 13,958 2,670 SSHFS OPT4 78.600
48%
Using a Bash script to mirror external monitors
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © bowie15, 123RF.com
and right. Unfortunately, my laptop has a 16:9 display with a resolution of 1,600x900 pixels. Common Denominator Some research on the topic of screen resolution reveals the root cause: the maximum
47%
Tuning I/O Patterns in Fortran 90
04.12.2013
Home »  HPC  »  Articles  » 
today is Fortran 90, even though more current versions (Fortran 95, Fortran 2003, and even Fortran 2008) are available. I took the C code in the previous article (Listings 2C and 3C) and rewrote
47%
Tuning I/O Patterns in Python
18.12.2013
Home »  HPC  »  Articles  » 
(One-by-One) 1 #include 2 3 /* Our structure */ 4 struct rec 5 { 6 int x,y,z; 7 float value; 8 }; 9 10 int main() 11 { 12 int counter; 13 struct rec my_record; 14 int counter_limit; 15
47%
Security first with the Hiawatha web server
11.04.2016
Home »  Archive  »  2016  »  Issue 32: Measu...  » 
Lead Image © Tatiana Popov, 123RF.com
#seconds BanOnInvalidURL = 0 #seconds #risky if > 0 BanOnMaxReqSize = 600 #seconds BanOnSQLi = 600 #seconds BanOnWrongPassword = 3:120 #seconds MinTLSversion = 1
47%
Understanding Layer 2 switch port security
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
Lead Image © Taffi, Fotolia.com
:1071867223(0) win 512 98:15:eb:38:f3:c1 c8:d7:c1:61:be:a3 0.0.0.0.30693 > 0.0.0.0.57646: S 1759104040:1759104040(0) win 512 dc:6d:43:15:be:52 99:19:41:22:4e:36 0.0.0.0.29211 > 0.0.0.0.63665: S 481173385

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