One often needs to use PASSIVE / PASV mode for FTP transfers to work successfully on some FTP servers, especially if you are on a network which is being NAT’ed by an ADSL / DSL / wireless router.
Microsoft’s command line FTP program (ftp.exe) doesn’t have the PASV / PASSIVE command, so how do you get around it?
With the literal command. Once logged into the FTP server, type in literal PASV to enable PASSIVE mode.
Here’s an example:
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| Connected to test.com.
220---------- Welcome to Pure-FTPd [TLS] ----------
220-You are user number 6 of 50 allowed.
220-Local time is now 09:10. Server port: 21.
220-This is a private system - No anonymous login
220-IPv6 connections are also welcome on this server.
220 You will be disconnected after 15 minutes of inactivity.
User (test.com:(none)): test
331 User softdux OK. Password required
Password:
230-User softdux has group access to: test
230 OK. Current restricted directory is /
ftp> literal PASV
227 Entering Passive Mode (1,2,3,4,130,44)
ftp> |
I found this cool game on clusters: http://www.rcac.purdue.edu/rackanode/ you basically need to build a cluster, and then process some data with it. You start off with some cash and need to choose your first server. Once the server is in place you’ll get some data to process and some more cash upon successful processing the data. Now you can add more servers to the cluster and process more demanding data.
Enjoy 
So, I want to start looking into setting up a XEN cluster on Linux, which will provide high-uptime for Linux & Widows guest operating systems.
This will be my first attempt to this, so I’m treading in deep waters, but it should be fun setting up. It’s rather late right now, so I’m not getting into anything at the moment, and I need a spare machine or 2 to setup the cluster.
So, to get started, I’ll be working through these URL’s:
http://www.sandervanvugt.com/heartbeat/xenhadoc.pdf
http://te.to/~ts1/xen_cluster.html
http://www.howtoforge.com/ganeti_xen_cluster_management_debian_etch
http://librenix.com/?inode=12733
http://searchenterpriselinux.techtarget.com/tip/0,289483,sid39_gci1294585,00.html
Since I’m going to run CentOS, I assume my setup will differ quite a lot from these links, but it’s a start.
The following article on super computers was quite good: http://www.webstreet.com/super_computer.htm
