Monthly Archives: December 2009

Cold Ride

Posted on December 29, 2009 by Judson Bishop

I have a friend in Chicago and another in Boulder who talk about how nice it must be to ride all winter in the south. It kills me. Check the low for each night, because that is the temperature I … Continue reading →

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Dig Tricks

Posted on December 27, 2009 by Judson Bishop

dig +short txt _netblocks.google.com dig -t SRV _kerberos._tcp.circus.com # get the address(es) for yahoo.com dig yahoo.com A +noall +answer # get a list of yahoo’s mail servers dig yahoo.com MX +noall +answer # get a list of DNS servers authoritative … Continue reading →

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Riding Rickshaw

Posted on December 22, 2009 by Judson Bishop

I live in Auburn Alabama and as you might have heard, it is a college town with a major college football team. In the fall, socializing revolves around football. I believe part of the reason is because there are no … Continue reading →

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SLA Lab

Posted on December 18, 2009 by Judson Bishop

Over the last few days here at the Circus we have been playing around with trying to test our service level agreements (SLA). It came about because one of our off-campus sites was having connectivity issues and were extremely vocal … Continue reading →

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SLA and MRTG

Posted on December 15, 2009 by Judson Bishop

Over the last few days here at the Circus we have been playing around with trying to test our service level agreements (SLA). It came about because one of our off-campus sites was having connectivity issues and were extremely vocal … Continue reading →

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Encryption and Authentication

Posted on December 14, 2009 by Judson Bishop

Wired Equivalent Privacy (WEP) Wired Equivalent Privacy (WEP) was the first implementation of wireless encryption, it has several weaknesses and should not be used. Weaknesses include: Weak encryption that has been broken Vulnerable to dictionary attacks Client trusts AP allowing … Continue reading →

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The Problem with 10-12 Hour Days

Posted on December 11, 2009 by Judson Bishop

2009-12-14 18:30:29 No wonder Google has such “extravagant” benefits. When you spend _all_ day and most nights at work there is precious little time for incidentals. The barber doesn’t stay open late and neither does the dry cleaner. Thankfully the … Continue reading →

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DHCP Options

Posted on December 9, 2009 by Judson Bishop

Last week we upgraded our Call Manager and I had to mess around with DHCP to get some phones working correctly. I’ve been meaning to write an entry about our DHCP server configuration so I figured I would take some … Continue reading →

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CBWFQ Lab

Posted on December 7, 2009 by Judson Bishop

CBWFQ Lab You can download the initial configuration files here. To prepare for this lab only turn on one 800K link between R1 and R2, and the link between R4 and R1 for traffic generation. If you want traffic to … Continue reading →

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Priority Queuing Lab

Posted on December 4, 2009 by Judson Bishop

  You can download the initial configuration files here. To prepare for this lab only turn on one 800K link between R1 and R2, and the link between R4 and R1 for traffic generation. If you want traffic to make … Continue reading →

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