also had to reference [this article](https://askubuntu.com/questions/368435/how-do-i-fix-dns-resolving-which-doesnt-work-after-upgrading-to-ubuntu-13-10-s)
version control /etc
```
cd //etc
sudo git init
sudo git add .
sudo git commit -m "initial setup"
```
pspg pager
```
sudp apt-get install pspg
```
postgres
```
sudo vim /etc/apt/sources.list.d/pgdg.list
deb http://apt.postgresql.org/pub/repos/apt/ bionic-pgdg main