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17%
Sort out your SSH configs
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © saniphoto, fotolia.com
and the other on all IPv6 IP addresses. Listing 1 Checking Open Ports chris@DebianBox:~# lsof -i :22 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME sshd 3328 root 3r IPv4 33323 0t0 TCP *:ssh
17%
Provisioning resources with an Azure-specific language
03.04.2024
Home »  Archive  »  2024  »  Issue 80: Threa...  » 
Lead Image © vectortatu, 123RF.com
in the Azure Cloud Shell, although you will need to upload the script each time: Connect-AzAccount # Only if not Cloud Shell New-AzResourceGroupDeployment -ResourceGroupName projectx1000 -TemplateFile "C
17%
TCP Stealth hides open ports
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © momo5287, 123RF.com
to the acknowledgement number (ACK). The use of the timestamp as a carrier is also conceivable. Listing 1 TCP Header 01 $ cat rfc793.txt 02 ... 03 0 1 2
17%
We compare four popular NAS appliances
05.12.2014
Home »  Archive  »  2014  »  Issue 24: Visua...  » 
Lead Image © Alejandro Mendoza, 123RF.com
. These products cost less than $1,000, including disks, and all are easy to manage, even without IT personnel. Table 1 Test Equipment Specifications   QNAP Synology Thecus
17%
The RADOS Object Store and Ceph Filesystem
24.04.2012
Home »  HPC  »  Articles  » 
= cephx keyring = /etc/ceph/$name.keyring [mon] mon data = /srv/mon.$id [mds] [osd] osd data = /srv/osd.$id osd journal = /srv/osd.$id.journal osd journal size = 1000 [mon.a] host
17%
Link Encryption with MACsec
28.11.2023
Home »  Archive  »  2023  »  Issue 78: Domai...  » 
Lead Image © Oleksandr Omelchenko, 123RF.com
with an Ethertype of 0x88e5 on the provider's network. Because MACsec works on Layer 2, it must be individually enabled for each interface. Encryption Method MACsec uses AES-GCM as the encryption algorithm
17%
Professional backup solutions compared
30.11.2025
Home »  Archive  »  2010  »  Issue 2: Backup...  » 
Kamil Macniak, 123RF
) with 12 Serial ATA disks, a 320 UW SCSI controller for the host connection, and 512MB cache. I configured various disk groups and logical volumes on this powerful hardware and exported them to the backup
17%
Service discovery, monitoring, load balancing, and more with Consul
04.10.2018
Home »  Archive  »  2018  »  Issue 47: Findi...  » 
Lead Image © Ringizzz, 123RF.com
[ec2-user@ip-172-31-20-189 ~]$ consul members Node Address Status Type Build Protocol DC Segment ip-172-31-16-22 172.31.16.22:8301 alive server 1.2.0 2
17%
Detecting intruders with Suricata
10.06.2015
Home »  Archive  »  2015  »  Issue 27: Fault...  » 
Lead Image © Kurhan, 123RF.com
Tunneling"; content:"|01 00|"; offset:2; w ithin:4; content:"cT"; offset:12; depth:3; content:"|00 10 00 01|"; within:255; class type:bad - unknown; sid:1000 2; The preceding rule inspects the DNS traffic
17%
Improved Performance with Parallel I/O
24.09.2015
Home »  HPC  »  Articles  » 
that is 80% parallelizable (20% is serial, primarily because of I/O). For one process, the wall clock time is assumed to be 1,000 seconds, which means that 200 seconds is the serial portion of the application

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