History of FuguIta/BBS/12 (No. 6)

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Subject:

Change on FuguIta 7.1†

kaw (2022-04-26 (Tue) 01:02:40)

I'm working on FuguIta 7.1 with plans to release it soon.

#FuguIta 7.1 changes from TMPFS to MFS as a memory-based file system. Please see the ML archive for the details of the change.

This will result in the following changes

• The automatic specification of file capacity that existed in TMPFS does not exist in MFS. You will have to specify it explicitly.
• The maximum amount of files that can be held in memory will be a little over 1GB on the i386 platform and a little over 30GB on amd64. This is a limit of MFS itself, and the value is independent of the page-out to the swap partition.

Name:

How to port PFFW to FuguIta†

kaw (2022-03-04 (Fri) 18:27:07)

PFFW is a firewall management software running on OpenBSD that continues to be developed by Soner Tari.
PFFW uses OpenBSD's packet filter PF and provides a web user interface for configuring PF and monitoring PF and OS behavior.

I have ported this PFFW to FuguIta LiveUSB and would like to introduce the procedure.

Overview
PFFW is available as an ISO image for installation, including OpenBSD itself and related packages, and porting to FuguIta LiveUSB is generally done as follows

• Install PFFW in the usual way.
• After installation, take out the PFFW-specific parts.
• Run FuguIta LiveUSB and extract the files from PFFW onto FuguIta.
• Modify some files so that PFFW and FuguIta work together.
• Save the modified contents to FuguIta LiveUSB.

Install PFFW in the usual way.
Refer to the PFFW GitHub Page and download the installation image.
Refer to the How to Install section of the PFFW GitHub Page for instructions on how to install from the downloaded image.
Installation can be done either on the actual device or on a VM, but it is easier to do it on the actual device because of the network interface settings.

During the initial setup of PFFW, answer no to the question if you want to use MFS.

If the system has enough memory, you can mount /var/log as MFS
Enable MFS? [yes] no

MFS /var/log disabled.

FuguIta uses TMPFS, so the same effect can be achieved without MFS.

After installation, take out the PFFW-specific parts.
Next, launch the installed PFFW and archive the PFFW-specific portions.

pffw# cd /
pffw# tar czf /root/pffw.tar.gz etc usr/local var

Please copy this pffw.tar.gz to another media, another host, etc. so that it can be read from the FuguIta environment you will create later.

Run FuguIta LiveUSB and extract the files extracted from PFFW onto FuguIta.
Run FuguIta LiveUSB, which is the destination of PFFW, in mode 0.

Boot modes:
   0: fresh boot - standard mode as a live system
   1: fresh boot - less memory, faster boot
                  (/usr is non-writable, can't pkg_add)
   2: fresh boot - works using only RAM
                  (about 1GB or more of RAM required)
   3: boot with retrieving saved files from storage device
      or enter passphrase for an encrypted volume
   4: boot with retrieving saved files from floppy disk
   5: interactive shell for maintenance
-> 0

After booting is complete, extract the files you have just archived.

pffw-fuguita# cd /ram
pffw-fuguita# tar xvzpf pffw.tar.gz

Modify /etc/rc.

pffw-fuguita# cd /etc
pffw-fuguita# patch < /boottmp/etc.rc.diff
Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|--- rc Tue Oct 19 00:11:59 2021
|+++ rc.new     Tue Oct 19 00:12:08 2021
--------------------------
Patching file rc using Plan A...
Hunk #1 succeeded at 177.
Hunk #2 succeeded at 377.
Hunk #3 succeeded at 684 (offset 58 lines).

Modify /etc/doas.conf as follows

permit nopass www as root cmd /ram/var/www/htdocs/pffw/Controller/ctlr.php
permit nopass admin as root cmd /ram/var/www/htdocs/pffw/Controller/ctlr.php
permit nopass user as root cmd /ram/var/www/htdocs/pffw/Controller/ctlr.php
permit nopass keepenv root as root

In FuguIta, /var is a symbolic link to /ram/var, and doas will not allow execution with the original contents.
/var must be changed to /ram/var, which is a realpath.

Merge /etc/rc.shutdown for PFFW and FuguIta.

pffw-fuguita# cd /etc
pffw-fuguita# mv rc.shutdown rc.shutdown.pffw
pffw-fuguita# cat rc.shutdown.pffw /fuguita/etc/rc.shutdown > rc.shutdown

Uncomment the last line of the merged rc.shutdown.

...snip...
          echo will retry after $waitsec seconds...
          sleep $waitsec
      done )
}

# To re-sync on shutdown. uncomment the following line.
usbfadm_r    <== Uncomment this line.

This will cause the file to be saved to the USB flash drive and then shut down after the PFFW exit process is complete.

Save the modifications to the FuguIta LiveUSB.

pffw-fuguita# usbfadm

Welcome to usbfadm.
USB flash drive administration tool for FuguIta

 Version/Arch: 7.0/amd64  (FuguIta-7.0-amd64-202202241)
    Boot mode: usbflash
Target device: not set
Data saved as: not set

readline capability available
TAB to complete the reserved words

Type ? for help.

? : ? ->target

Searching storage device
Please make sure the device inserted.
Then press ENTER ->
sd0a +sd0d
target device->sd0d

sd0d : ? ->saveas
Name of saved data->pffw

Your data will be saved as ``pffw''.

sd0d : pffw ->sync

Sync current tmpfs as ``pffw'' , OK? [y/N] -> y

copying /ram to /mnt/livecd-config/7.0/amd64/pffw (515360KB approx.):
 467MiB 0:00:30 [15.2MiB/s] [==============================>   ] 92% ETA 0:00:02
waiting for pax to finish ... syncing ... done.

sd0d : pffw ->quit

Bye bye...
pffw-fuguita#

This completes the porting of PFFW to FuguIta.

pffw-fuguita# shutdown -hp now

When starting up, choose mode 3 and specify the device and save name where the data was saved, and PFFW will start up.

To automatically specify the device name and save name and start up, please refer to the FuguIta's Start Guide.

• The PFFW installer is designed to install OpenBSD itself and related packages together, so a computer with PFFW installed becomes a "firewall-only machine" (which is usually fine as a mode of operation). By porting PFFW to #FuguIta, the PFFW environment can be loaded and operated only when necessary. It is also easy to migrate and operate on other hardware. -- kaw 2022-03-05 (Sat) 00:33:56

Name:

Desktop environment demo of FuguIta†

kaw (2022-01-13 (Thu) 23:30:46)

I have created a desktop environment demo of FuguIta on a trial basis and uploaded it to the "test" directory of mirror servers.

How to use
Download the file FuguIta-7.0-amd64-202201101-demo.img.xz and write it to a USB flash drive with a size of 8GB or more.

xz -dc FuguIta-7.0-amd64-202201101-demo.img.xz | dd of=/dev/rsdXc bs=1m

When you boot from this USB stick, you will get a desktop environment without authentication.

You will need a minimum of 2GB of memory on your PC.
Installed applications are as follows

audacious-4.1p0 emacs-27.2p3-gtk3 evince-40.4-light firefox-95.0.1
libreoffice-7.2.1.2v0 noto-cjk-2.001 noto-emoji-20200408
noto-fonts-20171024 pv-1.6.6 rlwrap-0.43p0 rsync-3.2.3p0
vim-8.2.3456-gtk3 vlc-3.0.14p1 xfce-extras-4.16

Technical topics

• non interactive boot with noasks file in d partition
• automatic login with xenodm
• additional mounting of a partition with /usr/fuguita/etc/fstab.tail file
• automatic network configuration with gennetconfs utility and chnetconf utility (in /etc/rc.local)

• In /etc/rc.shutdown, set auto_save_shutdown=Yes to automatically save files to a USB stick.
  #FuguIta -- kaw 2022-01-18 (Tue) 15:23:33
• The default user is demo. And its password is the same.
  #FuguIta -- kaw 2022-01-19 (Wed) 14:35:03

Name:

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Former articles are at FuguIta/BBS/11.

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