HTTP/3 runs over QUIC, a UDP-based transport with TLS 1.3 built in. The payoff for your visitors is concrete: connection setup takes one round trip instead of two, repeat visits…
Read MoreVPS Performance Tuning: 12 Kernel Settings Measured With Real Before/After Benchmarks
Most “12 settings to tune” articles hand you a wall of sysctl values with no evidence they help. This one is different: every setting below was applied to a 2…
Read Moresystemd Timers vs cron: Scheduling Jobs on a VPS
Goal: choose the right scheduler for recurring jobs on a Linux VPS and migrate your crontab to systemd timers where it pays off. This guide compares both, shows a working…
Read MoreCaddy as a Production Reverse Proxy: TLS, Health Checks, Logging and Measured Overhead
Caddy is attractive precisely because it removes the two most error-prone parts of running a reverse proxy: writing TLS configuration and remembering to renew certificates. But the ten-minute setup is…
Read MoreNginx vs Apache vs Caddy: Measured Memory, Concurrency and Tail Latency on a 4-vCPU VPS
Choosing between Nginx, Apache and Caddy is not a matter of taste once the numbers are on the table: they differ in per-connection memory, how they handle slow clients, what…
Read MoreReading Linux Performance in Under 60 Seconds: vmstat, pidstat and PSI
A slow server does not hide its bottleneck: the Linux kernel accounts for every nanosecond of CPU time, every major page fault, every block-layer request and every dropped packet. The…
Read MoreSwapfile vs zram on a VPS: Setup, Monitoring, and Swappiness
Swap is the emergency reservoir Linux uses when physical RAM runs out — and on a VPS it is either a lifesaver or the thing that makes your server feel…
Read MoreZero-Downtime Deploys on a Single VPS: systemd, Blue-Green, and Rollback
A plain systemctl restart app drops every in-flight request, closes established connections, and leaves a visible gap in your error log. On a single VPS you cannot spin up a…
Read MoreSetting Up a Mail Server on a VPS: Postfix and Dovecot with SPF, DKIM, and DMARC
Sending mail from a VPS without authentication setup is a one-way ticket to the spam folder: receiving servers check your IP’s reverse DNS, your SPF record, and your DKIM signature…
Read MoreLogrotate and Disk Space Management on a VPS: Keep Logs Useful Without Filling the Disk
A full disk is one of the most common causes of VPS outages — and it is almost always self-inflicted. Application logs, database binlogs, and package manager caches grow silently…
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