Notes on infrastructure, cloud, automation, and things I learn along the way.https://harry.id/en-UShttps://harry.id/blog/hello-world/https://harry.id/blog/hello-world/Post pertama. Kenapa aku pindah ke Astro + Cloudflare Pages dan apa saja yang bisa kamu harapkan dari blog ini.Tue, 28 Apr 2026 00:00:00 GMTmetaastrohey@harry.id (Harry Suryapambagya)https://harry.id/blog/terraform-modules-yang-reusable/https://harry.id/blog/terraform-modules-yang-reusable/Pelajaran dari tiga tahun bikin Terraform modules yang salah — dan pattern yang akhirnya stick.Mon, 20 Apr 2026 00:00:00 GMTterraformiacinfrastructurehey@harry.id (Harry Suryapambagya)https://harry.id/blog/observability-murah-di-vps/https://harry.id/blog/observability-murah-di-vps/Setup observability lengkap (metrics + logs + traces) untuk side project, tanpa tagihan SaaS yang bikin deg-degan.Sun, 12 Apr 2026 00:00:00 GMTobservabilitygrafanadockerself-hostedhey@harry.id (Harry Suryapambagya)https://harry.id/blog/summarize-virsh/https://harry.id/blog/summarize-virsh/A one-liner with awk that counts running, paused, idle, and shut-off KVM guests from virsh list --all output. Quick health check on a busy hypervisor.Mon, 22 Jul 2024 07:38:19 GMTkvmvirtualizationlinuxhey@harry.id (Harry Suryapambagya)https://harry.id/blog/pagespeed-web-dev/https://harry.id/blog/pagespeed-web-dev/Notes from messing around with pagespeed.web.dev to see how the blog scores on mobile. Will update as I shave off the obvious wins.Thu, 27 Jun 2024 12:39:56 GMTperformancewebhey@harry.id (Harry Suryapambagya)https://harry.id/blog/wordpress-malicious-process-mitigation/https://harry.id/blog/wordpress-malicious-process-mitigation/Step-by-step for an infected WordPress site: top to find the rogue process, lsof to locate the file, chmod 000 + chattr +i to neutralize it, then dig through cron and core.Sat, 22 Jun 2024 04:11:13 GMTwordpresssecurityopshey@harry.id (Harry Suryapambagya)https://harry.id/blog/migration/https://harry.id/blog/migration/Moving the blog off GhostCMS and from harry.coffee to harry.id. The .coffee TLD was getting expensive — let's see if this version of the site lasts longer.Sun, 26 May 2024 14:15:39 GMTmetahey@harry.id (Harry Suryapambagya)https://harry.id/blog/ledmon/https://harry.id/blog/ledmon/Intel's open-source ledmon lets you blink the LED on a specific drive in a server enclosure — handy when you need to physically locate a disk before pulling the wrong one.Fri, 29 Oct 2021 02:47:43 GMTlinuxhardwareopshey@harry.id (Harry Suryapambagya)https://harry.id/blog/sysadmin-day-2021/https://harry.id/blog/sysadmin-day-2021/Last Friday of July — celebrating the people who keep the servers warm. Refill that cup, fellow sysadmins.Fri, 30 Jul 2021 08:35:14 GMTsysadminmetahey@harry.id (Harry Suryapambagya)https://harry.id/blog/sar/https://harry.id/blog/sar/System Activity Reports — using sar to investigate a sudden server crash. Where the data lives, how to generate plain-text reports, and a free chart tool to actually make sense of the numbers.Fri, 09 Jul 2021 05:48:33 GMTlinuxmonitoringopshey@harry.id (Harry Suryapambagya)https://harry.id/blog/infrastructure-as-code/https://harry.id/blog/infrastructure-as-code/A casual chat with my co-mentor about HashiTalks and the HashiCorp stack — Packer, Vagrant, Terraform, Consul, Vault, Nomad, and friends. Notes-to-self for future deep dives.Thu, 01 Jul 2021 11:13:51 GMTiachashicorpdevopshey@harry.id (Harry Suryapambagya)https://harry.id/blog/apache2-deny-rules/https://harry.id/blog/apache2-deny-rules/Quick reference for restricting access in Apache: the order/deny/allow syntax of 2.2 vs the Require syntax of 2.4 — almost the same problem, almost the same words, different config.Mon, 28 Jun 2021 07:06:33 GMTapachelinuxopshey@harry.id (Harry Suryapambagya)https://harry.id/blog/whmcs-lost-password/https://harry.id/blog/whmcs-lost-password/When a WHMCS admin loses their 2FA backup codes, the rescue path is a single UPDATE query against tbladmins to clear authmodule and authdata.Thu, 24 Jun 2021 10:00:29 GMTwhmcsopssecurityhey@harry.id (Harry Suryapambagya)https://harry.id/blog/elasticsearch-curator/https://harry.id/blog/elasticsearch-curator/Why ES Curator silently refuses to delete old indices when they're managed by ILM — and the one-line fix (allow_ilm_indices: true) that gets it back to work.Thu, 24 Jun 2021 02:47:06 GMTelasticsearchelkopshey@harry.id (Harry Suryapambagya)https://harry.id/blog/gsgsciciltt/https://harry.id/blog/gsgsciciltt/An Indonesian acronym I picked up from Pak Rahmat Samik-Ibrahim's blog: Google Sana, Google Sini, Coba Itu, Coba Ini, Lalu Tanya-tanyi — basically my entire workflow as a sysadmin.Thu, 24 Jun 2021 02:36:33 GMTmiscmetahey@harry.id (Harry Suryapambagya)https://harry.id/blog/certbot/https://harry.id/blog/certbot/Notes on installing the missing python2-certbot-nginx plugin and getting a free Let's Encrypt cert via the nginx authenticator.Wed, 09 Jun 2021 03:53:08 GMTletsencryptsslnginxhey@harry.id (Harry Suryapambagya)https://harry.id/blog/logstash-tips/https://harry.id/blog/logstash-tips/Reload Logstash pipeline config without restarting the service — just send SIGHUP to the running process and watch the log confirm the reload.Sun, 09 May 2021 16:44:54 GMTlogstashelklinuxhey@harry.id (Harry Suryapambagya)https://harry.id/blog/recurring-commands/https://harry.id/blog/recurring-commands/A scratchpad of one-liners I keep typing — find files older than N days, list IPs, and the others I'm too lazy to memorize properly.Sat, 08 May 2021 06:24:05 GMTlinuxsnippetshey@harry.id (Harry Suryapambagya)