Ben Chuanlong Du's Blog

And let it direct your passion with reason.

Resolve the DNS Contamination Issue in Firefox

The local DNS you use in China is probably contaminated and popular sites like Google, Facebook, etc. are not interpreted correctly. So if you are in China and use Firefox with Proxy, make sure to set network.proxy.socks_remote_dns to be true (follow steps below).

  1. Open an empty tab in …

Synchronization and Backup Solutions

Tips and Traps

  1. Almost all sychronization tools have problems with symbolic links. Most of them just ignore symbolic links. This makes sense as following symbolic links can causes serious disk problems. If not followed then symbolic links are likely broken on other device. The simple suggestion is do not place …

Docker for Nvidia GPU

Instruction on Using Nvidia GPU (CUDA) for Computing in Docker

  1. Install Nvidia cuda-drivers (or equivalent) on your Linux machine following instructions at CUDA Downloads. Notice that instead of installing cuda (using sudo apt-get install cuda), it is suggested that you install cuda-drivers only (using sudo apt-get install cuda-drivers). This is …

WSL2 Filesystem

Performance Issue

The performance of IO is extremely bad if you access the the Windows filesystem from WSL 2. This is also true if you use Docker in WSL 2 (since Docker on WSL 2 share the same kernel as WSL 2). It is suggested that you stick to WSL …

Init for Docker Containers

** Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement! **

Built-in Support

Docker has built-in support for init process (which is based on tini) now. In short, you just have to specify the option --init when you start a container using …

Resizing Hard Disk of Guest Machine in Virtualbox

Suppose you have virtual hard disk in VirtualBox called xp.vdi, you can resize it (megabytes) using the following command.

VBoxManage modifyhd xp.vdi --resize 40960

The command currently doesn't support vmdk virtual disk. So if you have a virtual disk called xp.vmdk, you have to first convert it …