IP address News and Articles

Let’s Encrypt Issues First IP Address Certificate

10.07.2025

The certificates will be generally available as short-lived certs later in 2025.

encryption , IP address , Security
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Configuring Linux DNS Settings

15.04.2024

Learn how systemd handles DNS.

DNS , IP address , Linux
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Lead Image © studiom1, 123RF.com

Transparent SIP communication with NAT

Number, Please

We show you how to secure transparent IP address transitions through NAT firewalls and gateways for Voice over IP.
Firewall , IP address , Security , VoIP
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Gift-Wrapped Security

TCP Wrappers are versatile, sophisticated, and surprisingly easy to use, and they can secure your servers from attack with run-time ACL reconfiguration.

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Figure 1: The packages pulled in at installation time.

Lighten Your DNS Load with TinyDNS

TinyDNS is superfast, minuscule, and secure DNS server software.

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