Articles by KMMR

Test TCP ports on Windows with Test-NetConnection

• Published: 2026.10.04
• Updated: 2026.10.04
• Infrastructure Windows

Check SSH or HTTPS TCP connectivity on Windows and distinguish network reachability from DNS, authentication and certificate failures.

Read more

Troubleshoot DNS on Windows with Resolve-DnsName

• Published: 2026.10.04
• Updated: 2026.10.04
• Infrastructure Windows

Query A and AAAA records, inspect configured DNS servers, and compare a specific resolver without changing Windows DNS settings.

Read more

Counting characters in JavaScript: length, Array.from and Intl.Segmenter

• Published: 2026.10.04
• Updated: 2026.10.04
• Development

Compare UTF-16 code units, Unicode code points and grapheme clusters. Count and shorten names and emoji without breaking them.

Read more