Several weeks ago I had to replace my USB-to-Serial adaptor. After much research, Facebook posting/discussion I bought a Ugreen USB adaptor from Amazon. After a few times, I started having issues. I figured, like most network engineers it was software. Long story short it was a hardware failure and a replacement one fixed it.
However, in my searching I came across a little gem simply called Serial from Decisive tactics. What sold me on it was the ability to do profiles. Many times I am connecting to Cisco and the old way is the terminal emulator defaults to something that is not 9600. So I have to go into preferences, change it, apply a few times and I am good. Lots of wasted clicks. With Serial I can select my profile and off I go.
As a network person running a Mac I find it hand to know what IP my various connections have, in addition to some other info. In order to do this, I use a program called Geektool . Once you have GeekTool up and going you can add the following code into a new Geeklet.