knktc's Notes

A quick note showing how to insert post-local images in Hexo using post_asset_folder.

A short note about creating the PYAJS GitHub organization as a casual group for tinkering with both frontend and backend work.

If a RabbitMQ password contains characters like ?, URL-encode it before building the Celery broker URL.

On Fedora 25, Docker may fail to start offline because NetworkManager does not create resolv.conf unless a network is active.

A practical guide for running two Elasticsearch instances on a single host by separating ports, paths, and per-instance config files.

If Kibana 3 cannot connect to Elasticsearch even though the port is open, the real issue may be missing CORS headers.

Two simple ways to avoid interactive password prompts when running pg_dump in scripts or cron jobs.

To use a custom UDF through HiveServer2 on CDH4, add the jar directory to both hive.aux.jars.path and HIVE_AUX_JARS_PATH.

Use Start-Job and a small polling loop to run a limited number of PowerShell tasks in parallel instead of one by one.

Since Docker containers do not let you manage /etc/hosts freely, running dnsmasq locally can provide custom host resolution instead.