As always, all hosting options are month-to-month with $0 setup fee.  For more info, please visit http://cloudmac.net/l/july_special

Offer available while servers are available.

For more information, please refer to the site and CloudMac blog.

ethtool -i eth0

Execute the command to clear the counters.  This command assumes the driver e1000:

modprobe -r e1000; modprobe e1000; ifup eth0

Confirm the command was successful:

ifconfig eth0 | grep bytes
RX bytes:1400246 (1.3 MiB)  TX bytes:58638 (57.2 KiB)

From the output above, the RX and TX bytes were cleared and only display traffic from the last couple of seconds.

*Disclaimer: Use warning performing these commands if unsure of the proper syntax / variables.  Misuse will result in “disconnecting the astronaut” and losing access to the remote host.

Overall, we are very impressed with the Thinklogical unit.

More information is available from both VMware and Zimbra.

Zimbra states “First and foremost, we want to reassure our community, customers and partners that we stay 100% committed to our mission.  Together with VMware, we will accelerate our investments in Zimbra and strive to be even better at building and supporting the best open source email and collaboration software in the market.  As always, we will work tirelessly to strengthen and grow our business relationships and service our customers and community.”

Even with their transition into Yahoo!, the support and company has been fantastic.  We are excited to see how VMware helps their growth.

dd if=/dev/zero of=/Volumes/SAN/`hostname` bs=1g count=100

Assuming the hostname of the server is xserve01.domain.com, this command will write a 100GB file with the hostname of the computer to /Volumes/SAN/xserve01.domain.com

This command works well when run across several computers using Remote Desktop, and could be used to apply substantial load on a network server or SAN volume.

When rebooting for the firmware upgrade, one of our computers failed and did not boot.  There was a long tone (expected for the upgrade), then three tones in a row.  Three beeps means there is a RAM problem with the computer.

From Apple KB article HT2341:

Some RAM may appear to pass the Power-On-Self-Test (POST) but still cannot be used by the operating system. In this case, the computer will display a gray screen, sound three tones and blink the power LED on the front of the computer three times, pause, and repeat the blinking until the computer is turned off.

The memory in the laptop was not modified, and not third party (which may cause this boot problem).

To resolve the issue, we removed and reseated the memory.

I am not sure if this will work with all cases of Firmware 1.8 boot issues, but it fixed on of our systems.

Active – Normal status for a mailbox account. Mail is delivered and users can log into the client interface.

LockOut – Users who try to log in and do not enter their correct password are locked out of their account after a specified number of consecutive failed login attempts. An account’s status is automatically changed to Lockout. How long the account is locked out is set by COS or Account configuration, but you can change the lockout status at any time.

Maintenance – When a mailbox status is set to maintenance, login is disabled, and mail addressed to the account is queued at the MTA. An account can be set to maintenance mode for backing up, importing or restoring the mailbox.

Locked – When a mailbox status is locked, the user cannot log in, but mail is still delivered to the account. The locked status can be set, if you suspect that a mail account has been hacked or is being used in an unauthorized manner.

Closed – When a mailbox status is closed, the login is disabled, and messages are bounced. This status is used to soft-delete an account before deleting the account from the server. A closed account does not reduce the account license count.

“All GrandCentral accounts were upgraded to Google Voice earlier this year, but since that time, you’ve still been able to log-in to your GrandCentral account and listen to old messages there. You will no longer be able to log-in to your GrandCentral account after December 31.”

GrandCentral suggests downloading any voicemails you would like to keep.