Networking

Written by Sam McGeown on 10/9/2009
Published under

I recently had an issue where a hosting environment was registering a lot of Netlogon Event 1030/1058 issues, being unable to find the Group Policy objects or download them. In this example, the server DC is the domain controller for DOMAIN.LCL.

_Event Type: Error

Event Source: Userenv

Event Category: None

Event ID: 1030

Date:  10/09/2009

Time:  06:24:29

User:  NT AUTHORITY\SYSTEM

Computer: DC

Description:

Windows cannot query for the list of Group Policy objects. Check the event log for possible messages previously logged by the policy engine that describes the reason for this. For more information, see Help and Support Center at_ http://go.microsoft.com/fwlink/events.asp .

Written by Sam McGeown on 15/1/2009
Published under Microsoft

If you’re getting a error on your LAN connection it’s possible that your network connection is attempting 802.11 authentication on your wired network. Unfortunately, it seems that Vista/Server 2008 both attempt it before reverting. As far as I can see, it’s not causing any issues, other than irritating me with a “failed” and a red question mark.

Written by Sam McGeown on 24/11/2008
Published under Networking

I was configuring our new Cisco ASA 5510 firewall today, as part of a major infrastructure upgrade. I’m pretty comfortable with the Cisco IOS, but I still prefer the GUI for the basic set up, using command line to tweak the finer or more complex configurations. However, straight out of the box, I had a very hard time getting the ASDM to load. Being familiar with the PDM from the PIX range of firewalls, I should have guessed the problem straight away. Essentially, whatever problem you’re having with the ASDM, whether it’s not loading, not reading the configuration or whatever, the answer is likely to be “uninstall your current version of Java, google java 1.4.2, install it, try again”. It was the same with the PDM, and guess what? It’s the same with the ASDM.