opensourcetutor.com

I hate spam, it’s the needless bane of my existence. Spam, spammers and Microsoft vulnerabilities are the scourge of the internet. I spend way more time trying to stop spam than I want to. It’s not like it’s exciting work or anything.
Anyway, onto the story. A mail server that I administer recently started getting a lot of bounced messages from some Major  ISP’s  here in Australia.  I try to telnet to port 25 to send a test email via command line to see what the deal is and I get:
telnet …

Just a quick build up of my most commonly used bash commands
lsof | grep ‘searchterm’  – List open files and search for specific handlehistory | grep ‘searchterm’ – Search for a term in my bash history (I now have this setup as an alias ‘ghistory’ps -ef | grep ‘process’ – Much the same as ‘ps aux | grep’ but is HP-UX compatible, so force of habit really.!ssh – Reuse the last ssh command in history (make sure you never use !rm, especially if you ever use rm -rf).netstat -anp | …

Anyone who knows me, knows I am very keen on Network / Server Based Computing. As a part of my daytime lila I run a small Windows Terminal Server ‘farm’ that supports 300 remote desktop sessions across 40 branches in a 2500km radius. It’s not completely without it’s faults but it’s pretty damn good.
The more I used Linux, the more I wanted a similar solution to RDP. Anyone who ever advocated VNC as a replacement for RDP really just, well they didn’t quite have a clue. Winvnc, tightvnc etc, …