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20%
Coming to grips with grep
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Andrey Lavrushov, 123RF.com
takes everything literally, it is faster than grep. An example pattern file could look like this: patternR2 patternD2 patternC3 patternP0 A very large logfile might also start with lots of similar
20%
Secure your data channel with stunnel
25.03.2020
Home »  Archive  »  2020  »  Issue 56: Secur...  » 
Lead Image © Petr Vaclavek, 123RF.com
ZJOUoUsZGlkk client2:q0eL78zFrbnESW6c/F0qit5MNCpS8IBgyh1BdXiyyuI client3:zkq8eT31Nib3IHWfp0yyu15BCW52VMbY8+LhVUt3ylA The client uses the appropriate password in the /etc/stunnel/psk-client1.txt file: client1:Wf
20%
Setting up HTTP/2 for Nginx
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Photo by Ludomil Sawicki on Unsplash
of the Nginx web server, the ngx_http_v2_module module replaced its predecessor ngx_http_spdy_module in September 2015 (Nginx 1.9.5). April 2016 saw the module enter the stable branch (Nginx 1.10.0) [3
20%
TCP Stealth hides open ports
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © momo5287, 123RF.com
3 04 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 05 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 06 | Source Port
20%
Pen Testing with netcat
14.05.2013
Home »  Articles  » 
 
log in for terminal access: ps –aef |grep ssh This command shows the output: root 571 1 0 Mar26 ? 00:00:00 /usr/sbin/sshd -D Now I can SSH into the target box with my new user account and have
20%
HPC Software Road Gets a Bit Smoother
10.09.2013
Home »  HPC  »  Articles  » 
.80 626.49 0.70% FT 24,451.57 17,554.99 28.00% IS 470.63 904.86 48% LU 40,600.64 34,120.96 16.00% MG ... New OpenMP 4.0 Spec
20%
Getting started with the Apache Cassandra database
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Almos Bechtold on Unsplash
, represents Unix time (i.e., the number of seconds since January 1, 1970, 0:00 hours). It is multiplied here by 1,000 to obtain the value in milliseconds needed by Cassandra. Also bear in mind that this time
20%
REMORA
18.09.2017
Home »  HPC  »  Articles  » 
in the Fortran programfor a longer run time: nx = 8000 ny = 8000 i t_max = 10000 tolerance = 0.00004D+00 The code was compiled using GCC 7.1 and run on a four-core AMD A6-6310 laptop (Lenovo
20%
System temperature as a dimension  of  performance
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
Lead Image © Lucy Baldwin, 123RF.com
of alternative sources. Listing 1 sensors Output federico@ferenginar:~$ sensors k10temp-pci-00c3 Adapter: PCI adapter temp1: +42.5¡C (high = +70.0¡C) (crit = +100.0¡C
20%
Veeam Agent for Linux backup software
17.04.2017
Home »  Archive  »  2017  »  Issue 38: .NET...  » 
Lead Image © Aleksey Mnogosmyslov, 123RF.com
to occur every night of the week at 3:00am. This involved backing up an entire Ubuntu installation in a bootable image on network-attached storage (NAS) in the local network (Figure 3). When backing up

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