Large scale mail migrations can be tricky. There is a shareware app that can be used to migrate pst files from the pst format into mbox, which can then be used with Mac OS X http://www.littlemachines.com. If the migration process needs to be automated (they all seem to at scale) then a script could be written to crawl users, finds the pst files and then convert them. Or it could be done on the client side using a self-destructing launchd item. Conversion syntax for libpst would be something like the following: readpst -o /output/folder /server/path/user.pst Before you can use readpst, it needs to be built via libpst on the system that…
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Setting FTP Banners in IIS
IIS is a pretty straight forward system to manage. One of the more common post-flight tasks for setups of IIS is to configure FTP banners. In Server 2003, this can be done by opening Internet Information Services (IIS) Manager from Start > Administrative Tools. Then, browse to the server name > FTP Sites > Default FTP Site (or the name of the one you would like to configure if you have multiple per server) and then click on the Properties for the site. At the FTP Site Properties pane, click on the Messages tab. Here, you can provide a Banner to be shown to unauthorized users, a Welcome page, to…
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Review of My iOS in the Enterprise Book
There is a nice review of my iOS in the Enterprise book up on MacDirectory. It is available at: http://www.macdirectory.com/component/option,com_reviews/task,viewDetail/review_id,504 Overall the review was good. I understand not liking the font choice for the book. Luckily this type of thing isn’t something we authors have a choice about, so I take it as an overall good review!
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The Easter Bunny Conspiracy
As I rounded the corner of the kitchen, I saw it. The flash of a red light, going from eye to eye. “By your command” the animatronic hellcat said. It had seemed innocent enough. In fact, it was a present to my daughter from her eldest cousin. A present because the little girl felt so bad that my daughter didn’t have a sister (the cousin has 2 sisters) that she needed to give her favorite toy over, a robotic cat capable of cleaning itself, purring when you pet it and in future generations, someday attempt to wipe out humanity. Or maybe it was just too early in the morning. Shaking…
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Building Exchange 2010 Signatures En Masse
There are a lot of environments that standardize mail signatures. In Exchange 2010 you can now automatically assign users a signature based on a user’s Active Directory information, thus allowing en masse standardization of signatures. To do so is pretty straight forward, first open the Exchange Management Console and browse to the Organization Configuration. Then click on Hub Transport and then on Transport Rules. Next, click New to create a new transport rule. Here you can build an organizational signature based on user’s Active Directory attributes. You can provide some text and then any of the attributes that you see fit by wrapping them in the standard double percentage signs…
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Exchange 2010 and Archive-Only Mailboxes
Once upon a time, in a dark and dreary place, Exchange administrators (an already downtrodden lot mind you) had to let users archive their mail to pst files. These files, open while Outlook was open and distributed across the enterprise file servers, caused the poor Exchange administrators great pain and suffering as they were uncontrollable. The pst files roamed, causing great pains to SMB/CIFS, switching and other admins and these pst files worse of all had no policies applied to them. Then came a bright knight in shining armor. He brought with him Exchange 2010 and stories of mailboxes that could be used for archival to replace the monstrosity pst…
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Customizing vsftpd Banners
vsftpd supports custom welcome banners. By default the vsftpd configuration files are stored in /etc/vsftpd. The main config file is /etc/vsftpd/vsftpd.conf. In this file there are two ways to display a banner. The banner_file parameter will allow you to build nice spiffy banners with multiple lines and paragraphs even (ASCII pr0n if you roll like that): banner_file=/etc/vsftpd/welcome.banner Or for simple setups (most are), the ftpd_banner parameter lets you configure a single line welcome string for unauthenticated users. Make sure this doesn’t wrap to the next line or the daemon won’t start. ftpd_banner=Welcome to krypted.com. The daemon will need to get restarted once changed. The easiest way to do this is to use /etc/init.d/vsftpd:…
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Setting Up Multiple IPs in Ubuntu
A standard network interface will look similar to the following in /etc/network/interfaces: auto eth0 iface eth0 inet static address 192.168.210.100 netmask 255.255.255.0 broadcast 192.168.210.255 gateway 192.168.210.1 Adding more IP addresses to those interfaces is as simple as creating an alias, done by duplicating the information for the initial interface and appending a colon followed by 0,1,2,3,etc according to how many aliases are needed, minus the gateway (the initial IPs gateway will be used): auto eth0:0 iface eth0:0 inet static address 192.168.210.101 netmask 255.255.255.0 broadcast 192.168.210.255 auto eth0:1 iface eth0:1 inet static address 192.168.210.102 netmask 255.255.255.0 broadcast 192.168.210.255 When finished, run an ifconfig to verify that the new interfaces are up…
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Link Aggregation in Ubuntu 10
Ifenslave is an open source package that can be used to bond interfaces in Ubuntu 10. To install ifenslave, we can use apt-get: apt-get install ifenslave Once installed, we will need to take down our existing eth interfaces. Presumably these are eth0 and eth1, but you can use ifconfig to verify: ifconfig eth0 ifconfig eth1 Once you’ve verified the interfaces you want to bond, bring them down: ifdown eth0 ifdown eth1 Next, locate the entries in /etc/network/interfaces and comment out the corresponding lines: vi /etc/network/interfaces You will then need to add information for the link aggregated bond. Bond levels in ifenslave include: bond0: Round Robin with all interfaces active (likely…
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Using a Colon As A Bash Null Operator
I was recently talking with someone that was constructing an If/Then and they wanted a simple echo to match only if a condition was not met. Given their other requirements it seemed a great use for a null operator, which in bash can be a colon (:). This has the equivalent of /dev/null, but with less typing. One example of populating something with null is if you have a case where you want to create a file where there may or may not be a file already, and you want your new file to be empty (or start empty so you can write lines into it). Here, you could have…