Archive for March, 2009

Windows Terminal License unavailable

Sometimes you can get an out of Terminal licenses message when connecting from a client, even if there are still plenty of licenses available. This can be due to some corruption in the client registry. You just need to delete the following key, and try connecting again. You should get the same license from the Terminal server.


Postfix max message and mailbox size settings.

To check the current settings for postifx:

postconf mailbox_size_limit
The default mailbox size is 51200000.

postconf message_size_limit
The default message size is 10240000.

To change it:

vi /etc/postfix/

mailbox_size_limit = newmailboxsize
message_size_limit = newmessagesize

Restart postfix

Redhat RHEL5 – build kernel from src.rpm

Download the kernel-2.6.xx-x.*.src.rpm from

rpm -ivh kernel-2.6.xx-x.*.src.rpm

cd /usr/src/redhat/SPECS

rpmbuild -bb –target=i686 kernel-2.6.spec

cd /usr/src/redhat/RPMS

rpm -ivh kernel-2.6.xx-x.*.rpm

MacOS keyboard shortcuts.

Here are some common keyboard commands used in other operating systems.

Page Up = Fn+UpArrow
Page Down = Fn+DownArrow
Home = Fn+LeftArrow
End = Fn+RightArrow
Del = fn+delete

Linux – procmail to delete mail from a user.

# ls -la .procmailrc
-rw-r–r– 1 username users 129 Mar 13 15:08 .procmailrc

# cat .procmailrc

* ^From

Return top