Design Patterns such as MVC above and Observer make software development a breeze! Or at least that is their goal, is to have standardized or well-known Design Patterns that has been refined by other developers, and shared out to the community in different locations (perhaps at Cisco Developer Code Exchange?) that Devs can use that … Continue reading DevNet Quick Notes – Design Patterns MVC and Observer, and BASH (Bourne Again Shell) review of commands and directory tree!
Basically, ‘iptables’ is the packet filter system in RHEL systems. The best way to know what is ‘iptables’ is well written on the man page. In this article, I will show some simple and basic ‘iptables’ configurations. The three default chains in the iptables are Input, Forward, and Output. The ‘iptables –L’ command will show … Continue reading IPtables
I see a mention of "linuxconfig.org" in this image, I personally "borrowed" it from askubuntu.org, so go view both those websites and sign up for stuff and buy lots of souvenirs on your way out the door. This can go from Top - Down, Bottom - Up, in this case it goes from Left to … Continue reading Linux – A history of Linux vs Unix, File System review, and how to manipulate it using the Bash Shell!
I am not sure how deep I am going to dive into the Linux realm, as I do not intend to go so far as to go through a Linux+ certification course for a Linux Admin, but I did purchase David Bombal's Linux for Network Engineers course on Udemy. This will not be structured labs … Continue reading Linux – A quick look at Ubuntu Linux (one of many flavors) Desktop, Bash Shell, and how they compare to Cisco’s own IOS!