Purpose: as a quick diagnostic tool, sometimes it’s nice to know exactly how fast two machines can (theoretically) be connected. I was having some slow downs on my NAS and using these command line tools, was able to determine that it was my NIC (and not my hard drives) that was causing the slow down. I learned this from a thread at slashdot.
Purpose: setup an automatic encrypted off-site backup system that utilizes Amazon S3 with incremental backups by duplicity on the Mac (Leopard) or Ubuntu. Currently, I do have my own on-site backup system in place (nightly backups via rsync to external hard drive), but I am wary that some day my house may explode and I’ll have nothing left. Enter my new friend: the encrypted off-site backup.
Update (5/6/12): I have not been actively developing this script lately. Zertrin has stepped up to take over the reins and offers a up-to-date and modified version with even more capabilities. Check it out over at github.
This bash script was designed to automate and simplify the remote backup process of duplicity on Amazon S3. After your script is configured, you can easily backup, restore, verify and clean (either via cron or manually) your data without having to remember lots of different command options and passphrases.
Most importantly, you can easily backup the script and your gpg key in a convenient passphrase-encrypted file. This comes in in handy if/when your machine ever does go belly up. Code is hosted at github.
Purpose: Install Netatalk (AFP) on Ubuntu with encrypted authentication (using OpenSSL), which is not enabled by default with the Ubuntu netatalk package. By default, the package installed from the Ubuntu universal repositories will transmit your password via clear text (you’ll know this because Mac OS X Tiger will throw a warning and Leopard won’t do anything useful at all).
Purpose: to mount a remote directory on my local Ubuntu Linux Desktop system using SFTP (which is SSH in an FTP-like fashion). The goal is to easily gain access to a remote system’s files through another folder on my desktop. Debina/Ubuntu allows you to easily mount SSH folders via the GUI, however, these mounts won’t show up in the terminal (and in some programs). I used sshfs to accomplish this.
Purpose: The default installation of Apache (from a Ubuntu-Server installation) sets the base directory for the web documents as
/var/www (on Ubuntu’s installation — this may be different if you are running Apache on another machine); this may not be where you want it, in the end, and certainly isn’t as easily accessible from a remote machine. One option is to change where it is Apache searches for its web documents folder in Apache’s configuration file; another way, which I chose, is to create a symbolic link in the default location’s place and have it point to a directory in my user’s home folder.