slaptijack

The situation: A Cisco 7604 with SAMI card is able to send packets from the individual IOS instances running on the SAMI PPCs, but is unable to receive packets.

The hardware: The table below describes the hardware involved.

The guys at Google have rolled out a few interface changes for Gmail users. So far, these changes have not been rolled out to Google Apps users.

New Look

The Gmail interface has been slimmed down to remove clutter and make it easier to find what you need. The result …

This is a picture (larger) of a Cisco 7604 with Sup32 and SAMI card. The modules you see here are:

As every system administrator is aware, keeping precise time on your servers can be critical. For example, if you use QueueMetrics for your Asterisk-based call center and the QM and MySQL servers are running with different times, users will notice confusing behavior as calls seem to arrive in the future …

For some reason, they don't make this completely obvious.

login: admin
password: admin

On one of the WordPress-based websites I maintain, I have removed the category base so that, when browsing a category the url doesn't end with /category/category-slug/. I accomplished that by putting a single '.' in the "Category base" text box of the Permalinks admin page. This worked fine until I …

While setting up a new blog for an old site the other day, I ran into a situation where the main page would work, but individual posts would result in a 404 (page not found) error. Checking the error log revealed that Apache could not find the file it was …

I would hope there is a better way to do this. The other day, I had a need to see all the interfaces on a router and how much input and output traffic they were passing. This just seems like something that should be built in, but I've not seen …

Configuring your syslog server to accept logging output from your Cisco routers and switches requires a few basic steps. We'll assume that you are using a new server and haven't made any previous changes to the syslog configuration. I use <acronym title="Red Hat Enterprise Linux">RHEL</acronym> 5 most …

This problem happened on a Mac Mini running OS X 10.4 (Tiger) not too long ago. The user was trying to run tshark against interface en2 — a USB <acronym title="Network Interface Card">NIC</acronym>. The tshark command produced the following output.

# tshark -w /tmp/slap -i en2
Capturing …

This seems to be a pretty common problem for Cisco users. Not that Cisco devices have more queue drop problems, just that more Cisco users are a little confused by the information generated in the show interface command.

Specifically, we're talking about the lines that look something like this:

Input …

I always forget to do this. Long ago I installed XQuartz on my Mac OS X 10.5 (Leopard) desktop. For the life of me, I can't remember why I installed it. XQuartz replaces the X11 that comes with Mac OS X. I might have done this since XQuartz is …

I hate losing useful SQL queries, so I tend to save them. Ever so often, I stumble across a file of queries from some work I was doing months ago. The following two queries are just such a case. I was analyzing some call data for a call center that …

It seems like I have been working with Mac OS X serial ports a lot lately. Since the Mac in question is hundreds of miles away, I've been doing all of this via the command line using tools like kermit and minicom. One error that we ran into recently was …

Considering the economy and the crunch that many IT departments are feeling, it is no surprise that many small to medium businesses are curious about using Microsoft's free security product as a replacement to the enterprise security solutions they have been using. Individual businesses will have to decide if Microsoft …