Installing a new toilet roll holder

Here’s our victim for the day, a busted old toilet roll holder, held together with tape.

Remove tape, fall apart. This is why we’re replacing you, faded old piece of junk! One obvious screw (stripped thread, of course) to remove…

And it looks like we’re finding some sediment-layer-type history here… why bother removing something when you can paint over it?

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Acknowledging events in Cascade Profiler via the command line

To check how many events have not been acknowledged via the command line, there’s an SQL query that can be run. You’ll need to login as the mazu user to your profiler and run the command.

psql mazu postgres -c “query goes here”

The field we’re looking for is called ack and is in either of the events tables. The current events are events.current_summary and completed ones are events.old_summary.

To get the number of open, un-acknowledged events, the command is as follows:

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Cascade Shark filter weirdness…

Attempting to capture everything except (things on 172.0.0.0/8 and anything using port 1500).

The first part works, I don’t see any traffic on 172.0.0.0/8, but we’re still seeing port tcp/1500 traffic.

The device is a Cascade Shark 2100-series appliance running 10.0.6.

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Facebook picture issue fixed :D

So, recently I’ve been having issues with pictures loading on Facebook. Basically everything else works, but random images just fail to load.

I was messing around with it this morning and noticed that chrome was stuck on “Resolving address…”

Popping open a terminal window, I tried to see if it was a DNS issue.

Well, that’s just weird. My DNS server’s running locally… oh wait. A few weeks ago, I’d been messing with host-based firewalls on some of my machines just as a learning exercise. Logging into the DNS server, I showed the firewall rules:

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Berkeley Packet Filter (BPF) syntax

Qualifiers

The expression consists of one or more primitives. Primitives usually consist of an id (name or number) preceded by one or more qualifiers. There are three different kinds of qualifier:

  • type qualifiers say what kind of thing the id name or number refers to.

    Possible types are hostnet , port and portrange.

    E.g., “host foo”, “net 128.3”, “port 20”, “portrange 6000-6008”.

    If there is no type qualifier, host is assumed.

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Changing the logos on Cascade Profiler

It’s quite easy, change the images located in the following directory:

The one you normally see in the top left is “logo_rvbd_profiler.png” - 106x50px in size. Replacing the image with another PNG will replace it just fine in the interface. If you make something bigger, it can occasionally mangle the page, so be careful 🙂

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My Mission Statement

I attended an eQ Events Personal Success Intensive course on 24/08/13. One of the parts of the course was to define my personal mission statement. Here it is, in its current incarnation. I’ll change it as it changes over time.

The Purpose of my life is to experience Freedom and Wisdom. My mission to accomplish this is through sharing my thirst for knowledge, experience and understanding of the systems of the world to enrich and improve everything around me.

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