~~NOTOC~~
====== Network and System Configuration ======

===== General Information =====
FIXME  This page is under construction.
==== UnionFS ====
AstLinux uses a [[http://www.filesystems.org/project-unionfs.html|UnionFS]] overlay with a read-only 'firmware' and read-write partition.  The following graphic shows a representation of this.  The firmware resides in a VFAT partition along with the [[http://sourceforge.net/projects/runnix/|Runnix]] "bootloader".  Runnix is loaded by [[http://syslinux.zytor.com/wiki/index.php/The_Syslinux_Project|syslinux]].  After Runnix is active, it looks for the correct 'firmware' to use from the 'os' directory on the VFAT partition.  It also mounts the unionfs writeable area if available.  Multiple versions of firmware can exist in the 'os' directory.

{{:userdoc:filesystem.png|}}

==== Config files ====
===== Firewall =====
AstLinux uses [[http://rocky.eld.leidenuniv.nl/|Arno's IPtables Firewall]].  The default configuration files may be found in /mnt/kd/arno-iptables-firewall. !!Do not edit these files!!!   Either use the web interface or copy variables you wish to set from the firewall.conf file into the /mnt/kd/rc.conf.d/user.conf file.  The web interface should handle most use cases and is the recommended method.