goncalor

Reading manga on Kobo

The .cbX formats

I like to use the .cbz format to read manga because it’s very simple. It’s just a .zip file containing the images for the manga pages with its extension changed to .cbz . (There’s also .cb7 and .cbr that use 7z or RAR archives.) Images are read in alphabetical file name order by the e-reader and displayed on screen. That’s just it.

goncalor

# run as:
# podman run --rm -ti --mount=type=bind,src=$HOME/.abcde.conf,dst=/root/.abcde.conf --device=/dev/sr0 goncalor/abcde

FROM alpine AS musicbrainz-build

RUN apk --no-cache add git build-base pkgconf libdiscid-dev perl-utils perl-dev
RUN git clone --depth=1 https://github.com/goncalor/perl-musicbrainz-discid

WORKDIR perl-musicbrainz-discid
RUN perl Makefile.PL

goncalor

FROM alpine

WORKDIR /app
RUN adduser -h /app -D user

RUN apk add tinyssh ucspi-tcp6

USER user
RUN tinysshd-makekey ./sshkeydir

goncalor

# create a disk
vboxmanage createmedium --filename <name>.vmdk --size=512 --variant=<Standard|Fixed|Stream|...> --format=VMDK
# Standard is the default disk image type, which has a dynamically allocated file size.
# Fixed uses a disk image that has a fixed file size.
# Stream optimizes the disk image for downloading. This value is valid for VMDK disk images only. 

# create raw disk image
sudo vboxmanage createmedium --filename=<name>.vmdk --variant=RawDisk --format=VMDK --property=RawDrive=/dev/sXY
sudo chown <user>:<user> <name>.vmdk
sudo chown root:<user> /dev/sXY

goncalor

cron-like systemd unit

1. Create myunit.service. Only [Service] is needed, with an ExecStart=

2. Create myunit.timer. It needs [Timer] with an OnCalendar= or similar. It needs [Install] with WantedBy=timers.target

3. Enable both units. The .service unit will issue a warning due to missing [Install]. This is not a problem

    systemctl --user enable $PWD/myunit.service
    systemctl --user enable $PWD/myunit.timer
   

goncalor

[package]
name = "sequoia-test"
version = "0.1.0"
edition = "2021"

[[bin]]
name = "sequoia-test-password"
path = "password.rs"

[[bin]]

goncalor

MSMQ Nmap service probe

⚠️ Disclaimer: testing of this probe is limited and the MSMQ protocol is proprietary and undocumented. Use this probe at your own risk. ⚠️

Nmap currently has no way to detect whether the service running on TCP port 1801 is [Microsoft Message Queuing (MSMQ)][wikipedia_msmq]. The file msmq-service-probe here has been developed to give Nmap the capability to detect MSMQ. The objective is to help identify assets with MSMQ exposed, that may be vulnerable to [CVE-2023-21554][nist_cve_2023_21554], aka QueueJumper.

This works by sending a MSMQ packet to port 1801 and checking if the response matches an expected fingerprint.

You can run this probe as follows:

goncalor

#!/usr/bin/env python3
# Collapses subnets and/or IPs into the smallest possible set of subnets
import sys
import ipaddress

if len(sys.argv) != 2:
    print("Usage: {} <file>".format(sys.argv[0]))
    sys.exit(-1)

with open(sys.argv[1]) as f:

goncalor

just a test
wivykwfs6@nullmbx.net
don't send mail

goncalor

FROM alpine

RUN apk --no-cache add go chromium
RUN go get github.com/shelld3v/aquatone

#RUN useradd -m -d /app user
WORKDIR /app

#USER user