Ubuntu: Load a disk on startup – the GUI way
On terminal run sudo gnome-disks In the dialog box that opens, choose the disk to mount from the left panel. In the right panel click on the gears icon In the p...
Category: notes
Spring boot + Websockets : Connection getting closed by itself.
Problem : Getting the message “Websocket already in CLOSED or CLOSING state” from browser console after sending the first message. Reason: The packet size is la...
UTF-8 breaks on Ubuntu (minimal install) server applications
Problem : UTF-8 content is displayed and treated as garbage (eg: DL4J vector search misses all the time) Reason: User’s default encoding not set to UTF-8. Fix: ...
Fixed : “Json Array should begin with [” error on UTF-8 or UTF-16 files
Problem : JSON file which store top level JSON arrays just wouldn’t parse (using org.json library), and gives out an error message like – “Json Array should beg...
Bash on VNC session – Tabs do not auto complete
Problem : Pressing Tab keys not auto-completing when using Bash within a VNC session (to guest VM running on Ubuntu and XFCE.) Reason : Unknown, possibly tabs a...
Fix: Unable to connect to RabbitMQ server from remote clients
Problem : When connected from a remote client, this error is thrown (at client) – An unexpected connection driver error occured (Exception message: Socket close...
Increase Zuul timeouts for backend BOSH or Comet servers
This is how I could make Spring Zuul work with my backend XMPP (over BOSH) server which had a hanging post of 5 mins. Please find the relevant settings in appli...
MySQL Data migration from one server box to another
Here’s a quick way to move data from one MySQL server to another Let source box be ServerOne, and the target box be ServerTwo. (user-names and schema names are ...
Add Indic fonts for use by Java in Ubuntu server
This is how I could add Indic fonts to Ubuntu server and make them available for use by Java – Run on teminal – sudo apt-get install fonts-indic sudo apt-get in...
Fix : Cassandra not accessible from outside the local machine.
Problem: In Single node setup of cassandra, after installation and starting Cassandra, the native port (9042) is not accessible from outside the local box. Reas...