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Roger Wilco

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Everything posted by Roger Wilco

  1. Update all the firmware in the pc. IBM won't even look at a machine until the firmware is all up to date. If you still have the issues, give this a try: http://www.wikihow.com/Force-a-Blue-Screen-in-Windows This will allow you to do a crashdump when the system is freezing. You can then load the dumpfile in windbg, and see what is going on. You may have to configure a full memory dump, both user and kernel memory. http://support.microsoft.com/kb/254649 has instructions. Ensure that you have enough hdd space. Here's a good resource for using the windows debugger: http://www.expta.com/2007/05/how-to-debug-...mory-dumps.html If you can track it down to a process, then you will have your culprit. I had to use this on a server that was doing very similar things. In that case, the server wouldn't write the crashdump, so I ran a low-level format on all the drives in the server, and one came back bad. Also, the lenovos don't like when you have the hdd set as compatible in the bios, but usually that manifests itself on boot. Hope this helps. FWIW, I have a t61 as well, 32 bit Windows 7, and I am not having any issues with random lockups. Firmware and OS are up to date.
  2. Just got out from 3 day engagement with one of the top Canadian Exchange guys. I leaned a lot about exchange 2010. One of the big changes that they are talking about is the shift away from SAN storage, back to local storage. 2010 is using DAG, which allows store replication, and redundant mailbox servers. The store information is moved out of the server settings in AD and moved up to the exchange org level, so that you can have multiple stores that replicate across active directory sites, and therefore geographic locations. The exchange guy went as far to say that, given three mailbox servers in one geographic location, you could install the mailboxes on raid0 or jbod. If you had four servers split into two geographic locations, not only could you use jbod, but you would forgo the need for backups. The caveats to all of this are that you require Windows Server Enterprise per backend server. If you want to have a full hot site, the server requirements go up exponentially, especially if you require full functionality, like OWA across the two sites, since at that point you can't use NLB and have to go to hardware load balancers. To do a full redundant hot site with no single point of failure and full functionality, you require twelve servers, and 8 hardware load balancers. You don't need a SAN, but at that point, you might wish that's all you needed.
  3. Point-to point, then install an omni AP. If you're going to shoot a mile, then you'll need directional antennae.
  4. Check out Zimbra. It is open source, works with BES servers, Works with outlook, and has its own ajax web client. There are other ones out there, but Zimbra appears to be the most mature collaboration suite out there. http://www.zimbra.com/
  5. You can try deleting the mozilla directory in your application data directory first. Firefox will rebuild the profile.
  6. I just wish that there was something commercially available. I'm sure that Cisco could make a dent in the market with something similar. I know of a lot of companies that wouldn't mind replacing their low-level employees blackberries with such a device, and if they made a dock so that it could work as their desk phone as well, I can only imagine that there would be a market for it. Am I way off base on this?
  7. Depending on the model of linksys router, you could upgrade the firmware to something like dd-wrt or open-wrt. But, being at the 50-user level, you might want to upgrade to something like a Cisco 800 series, or even the 1800 series which will give you a lot more options.
  8. Hmm, n800 is $200 bucks on tigerDirect right now. Looks like it may be worth it.
  9. Long story short. I'm looking to get the equivalent of a blackberry or iphone, but using sip over wifi instead of a phone service. I want a phone that I can connect to my vpn and make and receive phone calls on, as well as get my e-mail on, and do some light web surfing. It would also have to work with public hotspots, hence the web browser. I am installing a cisco phone system, but if I have to install an asterisk gateway, I would. I would also like to avoid having to install proprietary software/hardware to support the device. I was looking at jailbreaking an ipod touch, but I don't know if there's an ssl vpn client, plus from what I read, you need a special microphone to use it. I've looked for commercial products, but haven't found anything. Anyone have any ideas?
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