Starting SSH service BackTrack has various services such as Apache, SSH, MySQL, VNC, etc. They are all disabled by default. To start a service such as SSH, you can use the service init scripts. For example, to start the SSH service:

Storage benchmark (hard disk or SSD) ? Ways in which you can invoke 'dd' to test the write speed: dd bs=1M count=256 if=/dev/zero of=test dd bs=1M count=256 if=/dev/zero of=test; sync dd bs=1M count=256 if=/dev/zero of=test conv=fdatasync dd bs=1M count=256 if=/dev/zero of=test oflag=dsync

Logging in Nginx One of the easiest ways to save yourself trouble with your web server is to configure appropriate logging today. Logging information on your server gives you access to the data that will help you troubleshoot and assess situations as they arise. In this article, we will examine Nginx's logging capabilities and discover how to configure these tools to best serve your needs. In this guide, we will be using an Ubuntu 12.04 VPS as an example, but any modern distribution should function in a similar way.

If you encounter the following error when updating, I listed below the steps to fix it. "W: GPG error: http://security.debian.org squeeze/updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AED4B06F473041FA"