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17%
Security without firewalls
31.10.2025
Home »  Archive  »  2012  »  Issue 12: NAS S...  » 
© rukanoga, 123RF.com
's usually TCP port 22) to port 2222, for example, to keep port scans from filling up your logs. Without TCP Wrappers enabled, scans might run dictionary attacks on your server where password combinations
17%
Creating Virtual SSDs
21.01.2020
Home »  HPC  »  Articles  » 
to a remote block device – specifically, an NVMe target. (2) The target will be the server exporting the NVMe device across the network and to the host server. A Linux 5.0 or later kernel is required on both
17%
Building a virtual NVMe drive
25.03.2020
Home »  Archive  »  2020  »  Issue 56: Secur...  » 
Lead Image © lassedesignen, 123RF
to a remote block device – specifically, an NVMe target. (2) The target will be the server exporting the NVMe device across the network and to the host server. A Linux 5.0 or later kernel is required on both
17%
Harden your Apache web server
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
PUT DELETE> Require valid-user SetHandler server-status Require ip 192.0.2.0/24 Directory and Files are always processed first. Directory
17%
Jira, Confluence, and GitLab
18.02.2018
Home »  Archive  »  2018  »  Issue 43: Real...  » 
Lead Image © Iaroslav Neliubov, 123RF.com
_python_interpreter variables ideally remain unchanged: They cause Python to connect to the host on standard SSH port 22 and to use Python 3 when calling commands on the target system. Next, check whether the devops.hosts setup
17%
IPv6 Tables
20.05.2014
Home »  Archive  »  2014  »  Issue 20: IPv6...  » 
Lead Image © gepard1979, 123RF.com
LAN_IF=eth0 DMZ_IF=eth2 LAN_NET=2001:db8:1::/64 DMZ_NET=2001:db8:2::/64 Next, completely reset the firewall rules to delete any previously existing rules. You can use the -F option for this. You also
17%
Jenkins Configuration as Code
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Amri Wolfgang, 123RF.com
# Jenkins home directory is a volume, so configuration and build history 22 # can be persisted and survive image upgrades 23 VOLUME ${JENKINS_HOME} 24 USER ${JENKINS_USER} 25 26 ARG JENKINS
17%
Speed up Your Name Server with a MySQL Back End
23.07.2013
Home »  Articles  » 
 
=gmysql # Tells our PowerDNS server we are using MySQL backend config-dir=/etc/powerdns/pdns.d/ #Specify our configuration file gmysql-host=127.0.0.1 #Configures the IP address that PowerDNS will listen
17%
pfSense firewall and router distribution
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Sergey Mironov, 123RF.com
Chris Buechler and Scott Ullrich were unhappy. Although the FreeBSD m0n0wall distribution gave them a quick option for setting up a firewall and a router, it was designed for use on embedded systems
17%
Using the Expect scripting environment
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© Ivan Mikhaylov, 123RF.com
Connection 01 #!/usr/bin/expect 02 03 set host [lindex $argv 0] 04 set timeout 5 05 spawn /usr/bin/ssh aefrisch@$host 06 expect "(yes/no)? " { 07 send "yes\r" 08 } 09 expect "password:" 10 send

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