Its happened more often than not so its worth mentioning here: a failure to send mail via SSL may be due to something as simple as the time being set incorrectly on the client machine. SSL cannot negotiate properly if the time skew is too great.
Startup Control Panel is a nifty control panel applet that allows you to easily configure which programs run when your computer starts. It’s simple to use and, like all my programs, is very small and won’t burden your system. A valuable tool for system administrators!
Vinod recently had a great post on the computing-support mailing list about Dell and the quality of their desktop design. Its available in the list archive, but I wanted to summarize the points made about the current (GX280) case. I’ve made much of the same points to various individuals over the course of the product’s lifetime and it is worth repeating.
1. The included slimline HDDs get too hot for their own good.
2. The heat exchanger makes poor thermal contact with the CPU.
3. CPU fans dead out of the box or a few months after receipt.
4. The new keyboards are a joke.
5. Front panel USB is worthless.
This error, which you may see attempting to change a Kerberos password via Psynch, simply indicates that you’ve provided the password the server already has on file and therefore it cannot make the change.
fail: Server side error, got [522 - chat step r5[*Password*for*changed*]:
Every Spring semester as part of the department’s eCommerce 401 class the students are assigned the task of building “a system that will enable the fictitious company The Great DVD to get gate information from the fictitious airlines so that they can deliver the movies right to their passengers as they board the airplane.” The instructions are posted to the web and students are encouraged to use Java to create the client software that will connect to our server running a copy of the server software.
I’m always using port forwarding via SSH to get at services I need behind firewalls, routers or other networks. From Windows I’ve had a particularly hard time mapping local ports for Samba because they’re in use already on the local device all of the time.
Fortunately I recently discovered that you can install a secondary local or loopback device on a Windows machine, thus allowing you to use it for the local port mapping. If you add a new Hardware Device manually in the Control Panel you will see that under Network Adapters and Microsoft you can add a Loopback Adapter. You need to manually assign this device an IP, one available for use on private networks (10., 172., 198., etc). You should also turn off File and Printing Sharing for the device as well as NetBIOS over TCP/IP as not to confuse things on the network (LMHost lookup should remain enabled).
Once that is set up you can forward a local Samba port to a remote host from a Windows machine. Once you set up the ssh connection you would just enter \\[ip assigned to new lookback device]\sharename into the Run dialog. If it doesn’t work you may have to review Microsoft’s note on the subject for SP2. Aside from that adjustment, works like a charm!
Here’s a utilty to assist in maintaining a fully defragged Windows system.
PageDefrag uses advanced techniques to provide you what commercial defragmenters cannot: the ability for you to see how fragmented your paging files and Registry hives are, and to defragment them. In addition, it defragments event log files and Windows 2000/XP hibernation files (where system memory is saved when you hibernate a laptop).
And I came by this bit on a related Slashdot post … the author mentions a way to tune Linux swap memory performance.
The ’swappiness’ of Linux can be tuned: since kernel 2.6.0 there has been a proc file /proc/sys/vm/swappiness. This can be set on a value from 0 (try to never swap) to 100 (agressively write out pages to disk). By default, it is set to 60. To change the swappiness, say, to 40:
echo 40 >/proc/sys/vm/swappiness
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