Aaron's Worthless Words

Latest Posts

ISCW Notes - Access List Resequencing

2009-11-08 ·2 min read

I don’t know if this really pertains to the ISCW test per se, but this is something I learned in my class last week. I’m sure I should have learned this years ago, but, alas, I …

ISCW Notes - Role-based Views

2009-11-05 ·3 min read

I’m at training for the ISCW test this week, and this topic came up yesterday. Since it came up last week at the office, I figure it was a sign from $deity that it was time for a blog entry. An …

ccnp cli iscw roles security user view

I've Been Hacked

2009-10-26 ·1 min read

It looks like one of those Russian b*%*#rds got me some time last week. I don’t know how long the site was down for sure, but I would guess that he first got access on Thursday, 22 October. …

godaddy hack restore russia security

Using SPF Records To Build Objects

2009-10-16 ·4 min read

My biggest complain about modern firewalls is their lack of the ability to create rules based on URLs or HTTP streams; you have to open access between IP addresses. Yes, I know there are other means …

_netblock asa dig dns fwsm google http mail object object-group pix records security spf txt

Object Groups in the ASA/FWSM/PIX

2009-10-01 ·5 min read

I can’t believe I haven’t talked about object-groups yet. I had a whole other blog entry written up, and, when I went to link things over, I realized I couldn’t find an intro to it. …

acl asa fwsm group object object-group pix

ASA and Proxy ARP

2009-09-11 ·3 min read

Wow. A new entry. Everyone sit down before you pass out. I’ve got a real-world example for you today. We have an ASA 5540 installed at a business unit with interfaces in multiple networks, …

arp asa cisco fwsm nat pix proxy syn

Getting Temperature Data from a 6500 via SNMP

2009-08-19 ·2 min read

I apologize to my adoring fans (both of you) for the lack of posting. I’m in the middle of moving, buying a new house, selling my current house, getting a mortgage, etc. I’ve up until …

cisco ios oid sensor snmp temperature

Aaron's Worthless Words is 2 years old!

2009-08-07 ·1 min read

I can’t believe I stuck with something for 2 years. I usually get a month in before I get bored and give up. Anyway, 2 years ago this month, I wrote a terribly-written article on The Principle …

anniversary privilege thanks

BCMSN Notes - EtherChannel Distribution

2009-06-23 ·3 min read

EtherChannel lets you aggregate links into one logical connection, but the distribution of traffic is not uniform. It does not use per-packet load-balancing or the like to determine what interface in …

bcmsn calculation ccnp cisco distribution etherchannel xor

I'm Still Alive

2009-06-09 ·1 min read

I promise I’m still here. It’s just vacation time, and I’ve been slacking. On top of that, I’m doing some work-travelling this week, and that really puts a damper on your …