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27%
Real-World HPC: Setting Up an HPC Cluster
04.11.2011
Home »  HPC  »  Articles  » 
-INPUT -p tcp -m tcp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT ### begin ssh #-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j
27%
Protect Your Servers with Nmap
23.07.2012
Home »  Articles  » 
 
.13.134.52):            Not shown: 994 filtered ports            PORT    STATE  SERVICE VERSION            22/tcp  open   ssh     OpenSSH 4.3 (protocol 2.0)            25/tcp  closed smtp            53/tcp  open   domain  ISC BIND 9
27%
GUI or Text-Based Interface?
05.12.2018
Home »  HPC  »  Articles  » 
used over port 22 (SSH). Be sure to examine the admin tools mentioned in Table 1. The charting capability, even with just text-based graphics, is great. I love using these tools to get a simple view
27%
Tuning ZFS for Speed on Linux
17.03.2020
Home »  HPC  »  Articles  » 
   PROPERTY              VALUE                  SOURCE myvol  type                  filesystem             - myvol  creation              Sat Feb 22 22:09 2020  - myvol  used                  471K                   - [ ... ] ARC Operating systems commonly
27%
Using a Bash script to mirror external monitors
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © bowie15, 123RF.com
" ; shift 20 local display_list="$1" 21 while read display width_mm height_mm width height ; do 22 if [[ "$display" == "$find_display" ]] ; then 23 echo ${width}x${height} 24
27%
Single sign-on like the big guys
20.06.2022
Home »  Archive  »  2022  »  Issue 69: Terra...  » 
Lead Image © Sergey Nivens, 123RF.com
_DB_PASSWORD=SOME_DB_PASSWORD 15 command: ["start-dev"] 16 17 postgres: 18 container_name: postgres 19 image: postgres:14 20 environment: 21 - POSTGRES_PASSWORD=SOME_DB_PASSWORD 22
27%
Introducing parity declustering RAID
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
Lead Image © Author, 123RF.com
. action: Replace the device using 'zpool replace'. see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-4J scan: scrub in progress since Mon Oct 24 17:11:22 2022 80.7M scanned at 80.7M
27%
Thread processing in Python
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © Christos Georghiou, 123RF.com
= sol.copy() 10 11 for j in range(0,ny-1): 12 sol[0,j] = 10.0 13 sol[nx-1,j] = 1.0 14 # end for 15 16 for i in range(0,nx-1): 17 sol[i,0] = 0.0 18 sol[i,ny-1] = 0.0 19 # end for 20 21 # Iterate 22
27%
Tuning ZFS for Speed on Linux
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © Wong Yu Liang, 123RF.com
NAME PROPERTY VALUE SOURCE myvol type filesystem - myvol creation Sat Feb 22 22:09 2020 - myvol used 471K
27%
Build a honeypot with real-world alerts
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © Bruce Rolff, 123RF.com
NEW -m tcp --dport 22 -j ACCEPT 10 -A INPUT -p udp --dport 5353 -j DROP 11 -A INPUT -s -p tcp -m state --state NEW -m tcp --dport 443 -j ACCEPT 12 -A INPUT -m limit --limit 30/min -j

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