Friday, March 28, 2008

What Street Do You Live On?

Asylum Street, Hartford, CT

Meat Without Feet

Truck in Hartford, CT.

Friday, March 21, 2008

Linux iSCSI Howto

Now that I am working with VMWare Virtual Infrastructure 3, I've had a crash course in iSCSI storage. As a result, I've been working on implementing iSCSI in my own "datacenter" (ie: basement) The first step (paradoxically) was to connect a Linux client to an existing host. Luckily, I'm able to use the companies datacenter resources for R&D.

It took several howto's and hacking around, but once I found all the pieces, it was actually quite simple. Using Fedora 6 as a base, the first step was to install the iSCSI RPMs:
(lsscsi may not be necessary, but let's be safe for now)

In the /etc/iscsi directory are two files. We need to add the host IP and port as the first two directives of the iscsid.conf.
isns.address =
isns.port = 3260
Next, change initiatorname.iscsi to contain the name defined on the host.
Start the service and execute a sendtargets request:
# service iscsi start
# iscsiadm -m -discovery -t sendtargets -p
(Yes, the IP's are different. For some reason, I have to initiate to one NAS in order to connect to the other.)
Now I see the LUNs, but what about the devices? An fdisk -l sees the .110 NAS which was defined, but not the .131 NAS, which was discovered. We could be reboot, but this is Linux, not Windows! Let's try:
# service iscsi restart
Whoa! Look at all that output. Another fdisk -l now sees the devices.

Set the service to start at boot time, and we are in business:
# chkconfig iscsi on

Thursday, March 06, 2008

Trillian, Firefox, Yahoo Mail, and Vista

What a mess... The proverbial "perfect storm". Here's the story:

The Trillian client is a program that aggregates several IM protocols. Great little tool. When it recognizes mail in Yahoo or Hotmail accounts, it reports, and allows one click access to the webmail screen. A few weeks ago, this feature stopped working, after a Firefox upgrade.

I thought it was Firefox, but as it turns out, its Vista. (Surprise, surpise, surprise.) The way Trillian provides access to the webmail screen is by creating an HTML document that redirects to Yahoo Mail. The HTML contains the authentication information (most likely as arguments to a CGI post.) Trillian then hands the HTML document to Firefox, who spawns a new tab. Since the failure, Firefox reports "file not found".

The problem is that Vista has set read only permissions on:
  C:/Program Files/Trillian/users/default/cache
By setting the permissions for "everyone" "Full Access", the problem is resolved.

How do we do it?
1. Browse to the default folder and right click on cache.
2. Select Properties and the Security tab.
3. In the Groups or User names pane, highlight Users and click Edit.
4. In the pop-up window, again select Users and check Full control.
5. Click OK and OK to exit both windows and close the default window.