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26%
Endlessh and tc tarpits slow down attackers
02.02.2021
Home »  Archive  »  2021  »  Issue 61: Secur...  » 
Lead Image © Yewkeo, 123RF.com
from port 2222 on the local machine: $ nc -v localhost 2222 Connection to localhost 2222 port [tcp/*] succeeded! vc"06m6rKE"S40rSE2l &Noq1>p&DurlvJh84S bHzlY mTj-(!EP_Ta|B]CJu;s'1^:m7/PrYF LA%jF#vxZnN3
23%
Secure Your Server with TCP Wrappers
02.10.2012
Home »  Articles  » 
 
port 22) to port 2222, for example, to stop port scans filling up your logs. Without TCP Wrappers enabled, scans might run dictionary attacks on your server where password combinations are guessed by one
22%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
-server-full commands handle the request and sign procedure automatically, without requiring any intervention on the part of the admin. The scripts CharitÈ uses are based on Easy-RSA 2.2.2-2, which comes with the Debian
20%
Real-World HPC: Setting Up an HPC Cluster
04.11.2011
Home »  HPC  »  Articles  » 
2222 -j DNAT --to 192.168.1.200:22 COMMIT ### end nat Now reload the kernel sysctl  parameters and restart the firewall: # service iptables restart The next step in the process is to format
20%
TinyDNS
02.03.2012
Home »  Articles  » 
 
them like this: .mydomainname.com:1.1.1.1:ns1.mydomainname.com:900 .mydomainname.com:2.2.2.2:ns2.mydomainname.com:900 .mydomainname.com:3.3.3.3:ns3.mydomainname.com:900 Another Domain Now that you
20%
What Is an Inode?
23.03.2022
Home »  HPC  »  Articles  » 
 laytonjb laytonjb 19946519 Nov 20  2020 Lmod-8.4.15.tar.gz 31988342 drwxrwxr-x   2 laytonjb laytonjb     4096 Oct 27 14:22 mpibzip2-0.6 31988329 -rw-rw-r--   1 laytonjb laytonjb    92160 Oct 27 14:18 mpibzip
19%
Asynchronous PostgreSQL
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Fesus Robert, 123RF.com
$st2->execute($dbh->{pg_pid}); 16 if( !$st2->fetchrow_arrayref->[0] ) { 17 warn "couldn't stop backend PID=$dbh->{pg_pid}\n"; 18 } 19 exit 1; 20 } 21 22 POSIX::sigaction(SIGTERM, POSIX
19%
Graph database Neo4j discovers fake reviews on Amazon
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Image by Gerd Altmann from Pixabay
five-star reviews that look very similar. The problem is so evident on Amazon that customers rub their eyes in amazement wondering why the online giant doesn't intervene. Graph databases can help
19%
US Army Puts a Supercomputer in a Shipping Container
20.08.2019
Home »  HPC  »  News  » 
 
in a shipping container. The $12 million IBM system will include an on-board uninterruptible power supply, chilled water cooling, and a fire suppression system. The system comes with 22 nodes for machine learning
19%
XSEDE Project Receives Additional Funding
19.08.2020
Home »  HPC  »  News  » 
 
The US National Science Foundation has awarded another year of funding to the Extreme Science and Engineering Discovery Project (XSEDE). The $21.8M, 12-month grant will extend operations until

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