The ramblings of a computer geek
Windows could not start because of the following file is missing or corrupt: <windows root>\system32\ntoskrnl.exe Please re-install a copy of the above file To resolve you could try booting from your windows xp cd into recovery mode or into the installed version of recovery mode and run: cd c:\windows\system32 copy “..\driver cache\i386\ntoskrnl.exe” or cd “c:\windows\driver … Read more
net stop w32time net time /setsntp:pool.ntp.org net start w32time W32tm /resync Note: you need to run this command on the PDC emulator in your domain. This is the server that is at the top of the time infrastructure.
While trying to run the netdiag.exe program on a Windows XP or Windows 2003 Server you get this error message: netdiag.exe – Entry Point Not Found : The procedure entry point DnsIsDynamicRegistrationEnabled could not be located in the dynamic link library DNSAPI.dll or netdiag.exe – Entry Point Not Found : The procedure entry point DnsGetPrimaryDomainName_UTF8 … Read more
Information Store (672) SG1: An attempt to write to the file “D:\SG1\E00.log” at offset 1253376 (0x0000000000132000) for 512 (0x00000200) bytes failed after 1 seconds with system error 1784 (0x000006f8): “The supplied user buffer is not valid for the requested operation. “. The write operation will fail with error -1011 (0xfffffc0d). If this error persists then … Read more
Some useful Exchange recovery commands for when the sky has fallen, and you don’t have a working backup.
We were moving our mailbox from our old Exchange 2003 server to a new Exchange 2010 server, we moved the vast majority of people no problems, however there were about 10 or so users who we had this error with. Problem: “Property expression <blah> isn’t valid. Valid values are: …..” Now the user’s mailbox on … Read more
A odd problem with Active Directory that I came across this week; a user object keep on “losing” its permissions. When adding the “Send As” permissions for Exchange on a AD user object all seemed to go okay, then about 20 minutes or so later the permission would just vanish! After much rumaging around I … Read more
Was getting the problem that mails were being delayed from Exchange when sending outbound via a Postfix SMTP relay. After much work to try to determine the issue, I discovered that the Postfix server was responding with 400 errors for domains that did not exist or for domains that didn’t even have MX records. I … Read more
Explainations of the Windows 4GB Limit, PAE, AWE and Large Page Support
Setting up a second exchange server in the same routing group, all installed fine, however, after moving a mailbox to the new server and then sending an email to the mailbox, the mail got stuck in the queue on the first server. Checked the common things like DNS, firewall ports etc. all looked fine. But … Read more