NGINX proxy_pass: URI Rewriting, Variables, and DNS Gotchas
The exact proxy_pass URI rewriting rules, variable resolution gotchas, and three verified ways to fix NGINX's frozen-DNS problem, including the upstream-jdomain module.
dns
Practical dns guides from the GetPageSpeed engineering team: configuration, performance tuning and security for production Linux servers.
10 articles
Encrypted Client Hello in NGINX: Now Shipping in Our RPMs and DEBs
Server-side ECH (RFC 9849) is live in our stock NGINX, NGINX-MOD and EDGE packages, on RPM and DEB alike, built on OpenSSL 3.5 LTS…
NGINX Upstream Jdomain: Dynamic DNS for Any NGINX Version
Learn how to use NGINX upstream jdomain for dynamic DNS resolution in upstream blocks. The jdomain module re-resolves domain names on the fly without…
NGINX Upstream Resolve: Dynamic DNS for Load Balancing
Learn how to use the NGINX upstream resolve parameter for dynamic DNS resolution. Keep upstream server IPs current without restarts, handle DNS failover gracefully,…
NGINX Reverse DNS Module: Hostname-Based Access Control
Learn how to use the NGINX reverse DNS module (ngx_http_rdns) to verify client hostnames, block malicious traffic, and authenticate legitimate crawlers like Googlebot. This…
Secure your DNS with dnsmasq, dnscrypt-proxy and Cloudflare
Is your internet access being censored and your privacy violated by DNS hijacking? Learn how to use Cloudflare's secure DNS protocol to encrypt your…
DNS caching and beyond, in CentOS/RHEL and Fedora
Make use of DNS caching on your CentOS/RHEL 7/8 to speed up your server even faster!
Setup CloudFlare DNS resolution in CentOS/RHEL 7 servers
Make that DNS resolution faster on your CentOS 7 server using CloudFlare's new 1.1.1.1 DNS nameserver.
Choose the right DNS Nameservers for faster website performance
Worried about DNS performance and reliability? Use our guide and make the right choice for DNS nameservers hosting
Fix slow SSH and DNS in CentOS 6
Slow SSH can be a pain to work with. We have insight on the causes of slow SSH as well as quick fixes to…