Graylog has been through some changes last time I talked about them, hitting version 3.0 in February is awesome and one of things that make Graylog run well is Elasticsearch backend. Although Elasticsearch is not too hard to setup it usually runs better on bare metal, so there is cost of that as well as maintenance of the cluster is important, updates and upgrades. Depending your team experience you may not have time to learn it or run it the way it should be. That last thing you want is your logging setup to go down because of poor maintenance.
So in this post we will walk though setting up a Graylog Server and using AWS Elasticsearch service for our backend. Without having a quick Elasticsearch cluster Graylog experience suffers, so let’s get started.
Continue reading “Graylog with AWS Elasticsearch”
Just a short post about my recent Cisco exam, I was able to pass the 300-115 to renew all my lower CCNA certifications. The last time I took a Cisco exam was almost 3 years ago when I passed the CCNA Data Center certification. Overall the exam was fair although you will need multiple study resources to make sure you cover all the exam objectives.
The primary reason for doing this exam first instead of ROUTE or TSHOOT was I felt it was maybe the hardest one? Won’t really know until I take the other two.
The resources I used:
I “officially” started about three months ago, but was really off and on throughout 2018. During the last three months I did about an hour a day (Monday-Friday), the weekends I would shoot for 4 to 5 hours off and on during the day.
Not really in rush, so I’m probably going to wait until next winter, maybe ;)… I know it seems weird to drag this out and not just pass all of the exams but there are some personal/life goals this year I would like to at least start, in the meantime I hope this information is helpful and good luck!
So a single ISP isn’t cutting it anymore you need a backup just in case the primary fails and might as well add a second ASA into this design, more redundancy equals more up-time, right? On paper it sounds good but in the “real” world there probably is tipping point, more redundancy increases complexity. In this post we’ll aim to keep it simple, with setting up a Cisco ASA HA active/standby pair and then add in the second ISP. Let’s get started!
Continue reading “Dual ISP – Cisco ASA HA Active/Standby”
It’s the “S” word we don’t like to hear, and often times it has degraded networks or even took them down entirely. (All Systems Down – an older but classic story) It’s also one of those things that nobody really likes, we even had network companies, as well as IEEE try to replace it with something else. Remember the names like TRILL, and IEEE 802.1aq (SPB) or Cisco’s FabicPath technologies? You had all of these different flavors that showed a lot progress, but they never really took off for one reason or another. The funny part is this protocol we are all trying kill off is still alive and doing well, so let’s look at spanning tree in the meantime because you will likely run into it.
Continue reading “Oh…Spanning Tree”