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16%
Hardening mail servers, clients, and connections
03.04.2024
Home »  Archive  »  2024  »  Issue 80: Threa...  » 
Photo by jesse ramirez on Unsplash
use Ubuntu 22.04, but you can apply all the advice to other distributions, too. ClamAV is used in conjunction with SpamAssassin as a tool for filtering mail. Where action relating to name servers
16%
Creating an SFTP jail
30.11.2025
Home »  Archive  »  2011  »  Issue 3: Are yo...  » 
Juan Manuel Ordonez, 123RF.com
be replaced solely with the sshd configuration directives shown in Listing 3. Line 16 specifies that SFTP will listen on port 2202 instead of the default SSH port 22. This option is configurable and left ... 3
16%
SSH Administration – Windows in a Unix World
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Gino Santa Maria, 123RF.com
with ; or \g. 03 Your MySQL connection id is 3 to server version 5.0.22 01 Type 'help;' or '\h' for help. Type '\c' to clear the buffer. 01 mysql> Your connection to the MySQL server on the remote Unix
16%
Managing virtual machines
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© Igor Klimov, 123RF.com
to give you consistent results with a running system. A cleaner approach would be to use an image backup program for Linux, such as Clonezilla [2] or Partimage [3], which means shutting down the system
16%
Code IaC for provisioning of preconfigured virtual environments
26.01.2025
Home »  Archive  »  2025  »  Issue 85: Monit...  » 
Lead Image © vladnikon, 123RF.com
is an excellent Bicep-based reference and starting point that helps you get up and running quickly [3]. Table 1 BICEP Resource Definitions Resources Versioned w/@yyyy-mm-dd-state Common
16%
Web Cryptography API
26.11.2013
Home »  Articles  » 
ability of web browsers to encrypt and decrypt application data using JavaScript, is currently under review by the World Wide Web consortium (W3C) as a draft. This promising technology reaches well beyond
16%
Real-World HPC: Setting Up an HPC Cluster
04.11.2011
Home »  HPC  »  Articles  » 
Enterprise Linux Installation Guide [3] and the section on Kickstart installations [4] are important reading. The basic steps for getting your HPC cluster up and running are as follows: Create the admin
16%
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 9.3
16%
GUI or Text-Based Interface?
05.12.2018
Home »  HPC  »  Articles  » 
(Wikipedia, CC BY-SA 3.0). Another option is the Newt library, which focuses on color TUIs (Figure 2) and uses a widget approach, making programming a TUI much easier. With Newt, you can create stacked
16%
Tuning ZFS for Speed on Linux
17.03.2020
Home »  HPC  »  Articles  » 
       64 6836191232 sde    8       48 6836191232 sdd    8       80 6836191232 sdf Make sure to load the ZFS modules, $ sudo modprobe zfs and verify that they are loaded: $ lsmod|grep zfs zfs                  3039232  3

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