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17%
Warewulf 4 – Time and Resource Management
17.01.2023
Home »  HPC  »  Articles  » 
modified mine to keep it really simple: server 2.rocky.pool.ntp.org driftfile /var/lib/chrony/drift makestep 1.0 3 rtcsync allow 10.0.0.0/8 local stratum 10 keyfile /etc/chrony.keys leapsectz
17%
Greylisting with Postgrey
22.06.2012
Home »  Articles  » 
 
0-07:06:40 10 32400 0-09:00:00 11 40000 0-11:06:40 12 48400 0-13:26:40 13 57600 0-16:00:00 14 67600
17%
Cron alternatives fcron and hcron
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © stillfx, 123RF.com
priority at 3:45 daily except Sundays ## and inform user 'jim' about it. Process job after startup ## if the PC was not running at the scheduled time. &nice(10),mailto(jim),bootrun 45 03 * * *~0 "save --our
17%
GNU Parallel: Multicore at the Command Line with GNU Parallel
04.11.2011
Home »  HPC  »  Articles  » 
 $if | bzip2 ‑9 > $if.bz2; 04 done 05 real    0m27.005s 06 user    0m11.745s 07 sys     0m14.623s 08  09 $ time find . ‑name "*.gz" ‑print | parallel ‑j +0 'zcat {} | bzip2 ‑9 > {.}bz2' 11  12 real    0m
17%
Protect Your Servers with Nmap
23.07.2012
Home »  Articles  » 
 
 for brevity]            8   10.59 so-4-2-0.mpr3.pao1.us.above.net (64.125.28.142)            9   11.00 metro0.sv.svcolo.com (208.185.168.173)            10  9.93  scanme.nmap.org (64.13.134.52)            Nmap
17%
Give your servers the once over with Nmap
31.10.2025
Home »  Archive  »  2012  »  Issue 11: Cloud...  » 
© ragsac, 123RF.com
ADDRESS [Cut first seven hops for brevity] 8 10.59 so-4-2-0.mpr3.pao1.us.above.net (64.125.28.142) 9 11.00 metro0.sv.svcolo.com (208.185.168.173) 10 9
17%
Analyzing tricky database problems
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Photo by Quino Al on Unsplash
that can be reset. However, with MariaDB 10.0.12, the performance tables are deactivated by default. To activate them, the database admin adds the line performance_schema=on to the my.cnf file. Detailed
17%
Automated OpenStack instance configuration with cloud-init and metadata service
05.02.2019
Home »  Archive  »  2019  »  Issue 49: Anato...  » 
Lead Image © jeka81, 123RF.com
: $ curl http://169.254.169.254 1.0 2007-01-19 2007-03-01 2007-08-29 2007-10-10 2007-12-15 2008-02-01 2008-09-01 2009-04-04 The cloud-init package installed on an instance contains utilities for its early
17%
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
17%
What's left of TLS
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Maria Dryfhout, 123RF
in TLSv1.0 was error-prone, but the problems long remained theoretical. TLSv1.1, which was designed to iron out the worst weaknesses of CBC, followed in 2006. Two years later, TLSv1.2 was released

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