Howto update grandstream firmware

install http server

to install apache on archlinux:

sudo pacman -S apache --noconfirm

document root location on archlinux:

/src/http

to install apache on almalinux/rocky/rhel:

sudo dnf -y install httpd

document root location on almalinux/rocky/rhel:

/var/www/html

to install apache on debian/ubuntu:

sudo apt -y install apache2

to install apache on ubuntu/debian:

/var/www/html