Search found 5 matches

by daniel
Sat Sep 06, 2025 7:29 am
Forum: IT
Topic: How to disable unencrypted comunication on port 25
Replies: 0
Views: 123

How to disable unencrypted comunication on port 25

To disable unencrypted communication on port 25, you must configure your mail server to either refuse unencrypted connections or enforce the use of STARTTLS. The specific method depends on whether you are managing a client (sending mail) or a server (receiving mail) and what software you use.

For ...
by daniel
Thu Sep 04, 2025 3:57 pm
Forum: IT
Topic: How to tackle online threats.
Replies: 0
Views: 101

How to tackle online threats.

The challenge of maintaining compliance and proactively identifying and remediating new vulnerabilities in code is my frequent concern.
It demands significant time and the expertise and resources that are often in high demand.
An effective strategy involves leveraging external perspectives to gain ...
by daniel
Tue Jul 08, 2025 3:55 pm
Forum: IT
Topic: CVE-1999-0524 what is this about ?
Replies: 0
Views: 132

CVE-1999-0524 what is this about ?

What is ICMP ?
ICMP is part of the Internet protocol suite as defined in RFC 792. ICMP messages are typically used for diagnostic or control purposes or generated in response to errors in IP operations (as specified in RFC 1122). ICMP errors are directed to the source IP address of the originating ...
by daniel
Wed Jun 04, 2025 3:07 am
Forum: IT
Topic: Setting NSEC3 for a new zone
Replies: 0
Views: 125

Setting NSEC3 for a new zone

To enable NSEC3 for a zone in PowerDNS, use the pdnsutil set-nsec3 command, followed by the zone name and the desired NSEC3 parameters. You can also switch between NSEC and NSEC3 within the GUI interface, where you can also manage DNSSEC settings and keys.

Detailed Steps:

1. Enable DNSSEC : If ...
by daniel
Wed Jun 04, 2025 2:12 am
Forum: IT
Topic: Adding TLSA Records
Replies: 0
Views: 115

Adding TLSA Records

TLSA records can be complex for non-technical users. They require a good understanding of DNS and TLS concepts.
While adding TLSA records might seem like a "costly" process due to its complexity, the actual financial cost is usually negligible, with the main expense being the time and effort ...