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Every Email Rejected at Once — The Open-Resolver Mistake That Makes Spamhaus Answer "No"
daanial profile

Every Email Rejected at Once — The Open-Resolver Mistake That Makes Spamhaus Answer "No"

#email #linux #devops #dns
Comments
8 min read
Reducing NSD exposure before the upgrade: interim mitigations for the 4.15.3 CVEs
kozhevniko profile

Reducing NSD exposure before the upgrade: interim mitigations for the 4.15.3 CVEs

#dns #nsd #vulnerability #cve2026101338
Comments
4 min read
Six minor releases of exposure: what the NSD 4.10.0 to 4.15.2 range says about patch cadence
ioneyrezende profile

Six minor releases of exposure: what the NSD 4.10.0 to 4.15.2 range says about patch cadence

#dns #nsd #vulnerability
Comments
3 min read
Should You Worry About CVE-2026-101339? A Decision Guide for NSD Operators
sorrelthorncroft profile

Should You Worry About CVE-2026-101339? A Decision Guide for NSD Operators

#vulnerability #dns #nsd
Comments
3 min read
Managed DNS providers inherit a new supply-chain risk from the NSD stack overwrite flaws
stark_zhuang_df5076f35c68 profile

Managed DNS providers inherit a new supply-chain risk from the NSD stack overwrite flaws

#dns #nsd #vulnerability
Comments
3 min read
Parsing Is the Attack Surface: Lessons From NSD and CVE-2026-101339
bianliang profile

Parsing Is the Attack Surface: Lessons From NSD and CVE-2026-101339

#vulnerability #dns #nsd
Comments
3 min read
DKIM "no key for signature" after switching to a 2048-bit key: the TXT record is probably cut off
mogley1011 profile

DKIM "no key for signature" after switching to a 2048-bit key: the TXT record is probably cut off

#email #dns #devops #security
Comments
3 min read
How to Prepare a Domain Transfer So DNS and Email Keep Working
progineous profile

How to Prepare a Domain Transfer So DNS and Email Keep Working

#dns #devops #linux #webdev
Comments
7 min read
Your contact form emails might be landing in spam. Check SPF, DKIM and DMARC in 10 minutes
nexcodestudio profile

Your contact form emails might be landing in spam. Check SPF, DKIM and DMARC in 10 minutes

#webdev #email #dns #smallbusiness
Comments
2 min read
France Orders ISPs to Ready DNS Blocks for Major Social Platforms on Oct 24
madhavsharma99 profile

France Orders ISPs to Ready DNS Blocks for Major Social Platforms on Oct 24

#france #internet #dns #socialmedia
Comments
4 min read
Four BIND 9 flaws, no workarounds: planning for a resolver that cannot fail over
onaeiuspkz profile

Four BIND 9 flaws, no workarounds: planning for a resolver that cannot fail over

#bind9 #dns #cve202694300 #cve202697313
Comments 1
4 min read
19.4 million BIND fingerprints, and the two facts a scan cannot tell you about CVE-2026-94300
ioneyrezende profile

19.4 million BIND fingerprints, and the two facts a scan cannot tell you about CVE-2026-94300

#zoomeye #bind9 #dns #cve202694300
Comments
4 min read
Bulk WHOIS lookup in Python with RDAP: domain age, expiry, registrar and availability (no scraping, 2026)
datawrightlabs profile

Bulk WHOIS lookup in Python with RDAP: domain age, expiry, registrar and availability (no scraping, 2026)

#python #dns #api #tutorial
1
Comments 2
6 min read
The DMARC Record a Small Business Should Publish First (and When to Tighten It)
swiftlabs profile

The DMARC Record a Small Business Should Publish First (and When to Tighten It)

#email #dns #security #tutorial
Comments
4 min read
DMARC fails even though SPF and DKIM pass: how alignment actually works
mogley1011 profile

DMARC fails even though SPF and DKIM pass: how alignment actually works

#email #dns #devops #security
Comments
2 min read
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