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. . .
Reading package lists... Done
W: GPG error: http://ftp.daum.net trusty-updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5 NO_PUBKEY 3B4FE6ACC0B21F32
$ sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 40976EAF437D05B5
. . .
Reading package lists... Done
W: There is no public key available for the following key IDs:
3B4FE6ACC0B21F32
$ sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 3B4FE6ACC0B21F32

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$ sudo apt-get install language-pack-ko
$ sudo apt-get install language-pack-ko-base
$ sudo apt-get install localepurge
In the progress of installing of `localepurge`, setting script will be excuted. Then you must check `ko_KR.EUC-KR`.
If the script will not be excuted, type command `sudo dpkg-reconfigure localeconf`. Then you can do it.
After check it and push `Enter` button, window will be moved to option settings window. Then just push `Enter`.
Next,
$ sudo echo "ko_KR.EUC-KR EUC-KR" >> /var/lib/locales/supported.d/ko
$ sudo locale-gen --purge
$ sudo dpkg-reconfigure locales

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# -*- coding:utf-8 -*-
from functools import wraps

from flask import abort, request


def is_json_request():
    """
    Returns True if the request is json request else False.
    For example::

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#!/bin/sh
# alarm() doesn't work in nsjail. So you need to add -t option

nsjail -d --log /var/log/nsjail/contact -Ml --port 10001 -u 65534:10001 -g 65534:10001 \
--disable_clone_newnet -R /opt/challenges/contact -E PATH=/usr/local/bin:/usr/bin:/bin \
-E HOME=/opt/challenges/contact -R /bin/ -R /lib/ -R /lib32/ -R /lib64/ -R /usr/ -R /sbin/ \
-T /dev -R /dev/urandom -R /etc/ssl/certs -R /etc/resolv.conf -R /run/resolvconf/ -T /tmp/ \
-t 300 -- /opt/challenges/contact/contact

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# -*- coding:utf-8 -*-


class Foo(object):
    def __init__(self):
        self.__private_foo = 'private foo'

    def decorator(self, option):
        print 'decorator argument:', option
        print self.__private_foo

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alias pip-upgrade-all="pip freeze --local | grep -v '^\-e' | cut -d = -f 1  | xargs -n1 pip install -U"
alias p="python"
alias l="ls"

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References

• Understanding ASP.NET View State
• ASP.NET and ViewState Security
• Take Advantage of ASP.NET Built-in Features to Fend Off Web Attacks
• Orange Github

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Installation VirtualBox

1. Download Ubuntu 18.04 image at here

   I used Kakao Ubuntu mirror server in Korea.

2. Download Oracle VirtualBox package at here

3. Download Oracle VirtualBox Extension Pack at here

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OpenSCADA Installation

OpenSCADA is platform which supports high fidelity emulation of IEC 6111-3 compliant PLCs and SCADA protocols. You can check details at OpenSCADA documentation.

Environment

• Ubuntu 18.04.3 LTS (x86_64)

Install required packages

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class Network(Base, IdMixin, TimestampMixin):
    ip_address = sa.Column(IPAddressType, nullable=False)
    netmask = sa.Column(IPAddressType, nullable=False)
    name = sa.Column(sa.String(64), nullable=False, default=lambda: str(uuid.uuid4()), unique=True)


class Host(Base, IdMixin, TimestampMixin):
    name = sa.Column(sa.String(64), nullable=False)
    addr = sa.Column(sa.String(256), nullable=False)
    is_compromised = sa.Column(sa.Boolean, nullable=False, default=False)