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Re file https://github.com/DtxdF/AppJail.docs/blob/main/docs/networking/virtual-networks/alias-and-virtual-networks.md

To use both options we need to create another loopback interface:

sysrc cloned_interfaces+="lo1"
sysrc ifconfig_lo1_name="appjail0"
service netif cloneup

The interface name can be whatever you want, but I recommend keeping it simple.

appjail quick debian \
    alias="appjail0" \
    virtualnet="development" \
    osversion=bullseye \
    type=linux+debootstrap \
    start \
    linuxfs \
    devfs_ruleset=0 \
    template=/tmp/linux.conf \
    overwrite

The three lines sysrc, sysrc and service appear to be key to getting multiple of of the AppJail-makejails examples going. I'm still leaning this stuff, so I'll discover shortly whether I need to make these unique per jailed thing I'm making. I mean appjail1, appjail2, appjail3 and so on, whether one appjail0 will cover all the jailed things I'll be experimenting with.

Really though, I'm posting this issue because I do not under understand the significance of appjail quick debian ... in this page. Does it relate to the English line above it The interface name can be whatever you want, but I recommend keeping it simple? It does not appear to follow. The https://github.com/AppJail-makejails/alpine-linux example links to this page. I've executed the three lines sysrc, sysrc and service then rerun the makejail of the example and it works. Thus I am not sure of the significance of the appjail quick debian ... script in this documentation page.