Philipp’s posterous

September 19, 2008

How do I open a TCP port on a Ubuntu physical machine (host) for a Win virtual machine (guest)?

So here's my problem: I have a Windows 2003 guest virtual machine running under VMware Server 2.0 64bit. The host machine is Ubuntu 8.04 where I have a custom web server running under TCP port 54321.

With both bridged and host-only networking, the (Windows) guest machine can ping the (Linux) host machine -- but cannot connect to the aforementioned TCP service (neither via Telnet nor a web browser). In both bridged and host-only networking scenarios, the two machines (virtual and physical) obviously belong to the same virtual LAN so they can ping each other. I suppose my Ubuntu is, per factory defaults, "over-configured / secured". How do I open this specific port for clients from these virtual networks or just from the LAN in general?

Without knowing much about iptables, I tried both
sudo iptables -I OUTPUT -p tcp --source-port 54321 -j ACCEPT
sudo iptables -I INPUT -p tcp --destination-port 54321 -j ACCEPT

which, from some googling, people sometimes seem to use for other ports like MySQL or BitTorrent. Didn't help with my particular problem in the VMware scenario I just described.

Any pointers gladly appreciated!

Comments [0]



September 02, 2008

In reply to the "Chrome doesn't matter so much and will hardly get any market share anytime soon" comments everywhere

What everyone is missing dicussing Google Chrome, the allegedly upcoming Web Browser: Google will be the only 'browser vendor' ever and worldwide whose website is visited by absolutely, positively *everyone* using whatever browser they are currently using, at least once a day and most of the time, more often than that. How exactly they will leverage that without sacrificing the quality of their current offerings' user experience, no idea. But they will figure that one out. So their chances are so much better than Apple's, Opera's, Mozilla's and even Microsoft's combined!

Even people who do not use Google as a search engine have just about no choice but to encounter a Google Maps iframe here, a Blogger article there, and lots of AdSense ads in between and everywhere. As a user of the web, no matter your choice of browser or search engine, Google can reach out to you and you have no choice about it. I don't particularly mind, but if their product rocks, they have the means to convert the masses quickly.

Comments [0]



August 29, 2008

Round Rects are Everywhere!

http://tinyurl.com/roundrects

Comments [0]