Linux
Tutorial: Configuring zones bound by source IPs in FirewallD
How to set up source IP-specific or network-interface-bound firewall zone rulesets in FirewallD — the Linux firewall system.
Networking
DNS
Linode DNS Manager pitfall: No TXT record normalization
Be wary when entering DNS TXT records in the Linode DNS Manager. The web interface doesn’t properly normalize user input.
Microsoft Windows
Fix the Windows 10 Data usage report when it stops counting data
Plenty of third-party firewalls and similar programs can break Windows 10’s Data usage counting. Here is how to make it count your data again.
Networking
When is it necessary to reload FirewallD configurations?
Why and when do you need to run the ‘firewall-cmd --reload’ command after making changes to your FirewallD configuration.
HTTP Caching
Syndication feed deltas help reduce subscription bandwidth costs
Feed delta updates strip away feed entries that the subscriber has already download and only transmits the update delta consisting of new entries.
Networking
PHP: Making file_get_contents() more routing-robust and dual-stack
Make your network-based file_get_contents() request more reliable by having it not give up so easily and try multiple network routes and protocols instead.
Linux
Manage Wi-Fi latency and dynamic power-savings on Linux
You can decide the balance between Wi-Fi network latency and power-savings on Linux using the new llwr utility.
Networking
How to tell if Chromecast is connected via Ethernet or Wi-Fi?
Identify the network interface your Google Chromecast device uses to connect to the internet. Is it using the USB-Ethernet or Wi-Fi adapter?
Gaming
Blindly deploying IPv6? Watch your sales!
OnePlay’s website is available over IPv6 through Cloudflare. However, its backend servers blocked my purchases as they weren’t IPv6 ready.
Networking
How to set up PHP-GeoIP with automatic database updates
Instructions for setting up auto-updates for the GeoIP location databases, and set up the PHP-GeoIP extension in Fedora/Ubuntu Linux.
P2P
Set up a seedbox via distributed BitTorrent (DHT)
Ensure reliable and long-term content distribution over BitTorrent with a dedicated seedbox. All you need is a small server or a cloud VPS.
Authentication and Passwords
IP addresses as an auth factor in the era of device roaming and IPv6
Stop relying on IP addresses not changing in an IPv6-enabled world were devices randomly change their address at least once a day.