Boy that last stylesheet generated some negative reactions. I didn't think the colors were all that retina-searing. Oh well. Like this or leave it, I say. I'm going for simpler and easier to read. Sosumi.
In last night to test a firewall change with the engineer. Not sure what he was doing, but we never did get the thing to open up. Since the developers never provided test cases to me, I was using netcat to do the dirty work. Great little tool, netcat. Opens up a raw TCP/IP connection to any specified socket. Yes, it's that simple. Darned effective too, when doing network traces. You can send on any goofy TCP port you want to give you a quick search item in your trace. Certainly makes searching traces a lot easier.
Anyway, we were testing for kerberos last night, which runs on TCP 88 and 544. So, I opened up Ethereal and netcat. Started the trace in Ethereal, and then opened up a connection to the remote IP on port 88 with netcat. Three SYNs went out, no SYN-ACKs came back. Timeout. Not even an ARP request. Something's blocking something. I have no idea what. We're going to try again today.
Interesting technical meeting this afternoon, about slow network response in a partcular application. Well, I don't know about that, but I do know I checked the traffic betweeen the client firewall and our servers. There was a little bit of a delay on the web server as it tries to authenticate the user. About 15 seconds or so. But, once the session is established, the packet delay between the client firewall and the remote servers is averaging about .005 seconds. Slowdowns? Not on my network.
We'll see what comes out of that little meeting there...
-D.
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