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masternodecoin V4.1.0.0
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README.md V4.1.0.0 Sep 17, 2018

README.md

**Masternodecoin-Core (MTNC) V4.1.0.0

Masternodecoin Integration/Staging Tree

Copyright (c) 2016-2017 Masternodecoin

What is Masternodecoin?


  • Coin Suffix: MTNC
  • PoW Algorithm: SHA256d
  • PoW Period: 20,000 Network Initiation Blocks
  • PoW Median Target Spacing: 64 Seconds
  • PoW Difficulty Retarget: 2 Blocks
  • Full Confirmation: 60 Blocks
  • PoS Algorithm: SHA256d
  • PoS Target Spacing: 64 Seconds
  • PoS Difficulty Retarget: 2 Blocks
  • PoS Reward: Varied
  • PoS Min: 1 Day
  • PoS Max: Unlimited
  • Total Coins: 100,000,000 MTNC (burnned 35000000)
  • Block Size: 2 Mega-bytes (MB)

Masternodecoin is a digital currency that enables instant payments to anyone, anywhere in the world. Masternodecoin uses peer-to-peer technology over ClearNet to operate with no central authority (centralisation): managing transactions and issuing currency (ION) are carried out collectively by the Masternodecoin network. Masternodecoin is the name of open source software which enables the use of the currency Masternodecoin.

MainNet Parameters P2P Port = 10085 RPC Port = 10085

TestNet Parameters P2P Port = 11111 RPC Port = 11110

UNIX BUILD NOTES

Some notes on how to build Masternodecoin in Unix.

Note

Always use absolute paths to configure and compile Masternodecoin and the dependencies, for example, when specifying the the path of the dependency:

../dist/configure --enable-cxx --disable-shared --with-pic --prefix=$BDB_PREFIX

Here BDB_PREFIX must absolute path - it is defined using $(pwd) which ensures the usage of the absolute path.

To Build

qmake
make
make install # optional

This will build Masternodecoin-Qt as well if the dependencies are met.

Dependencies

These dependencies are required:

Library Purpose Description
libssl SSL Support Secure communications
libboost Boost C++ Library

Optional dependencies:

Library Purpose Description
miniupnpc UPnP Support Firewall-jumping support
libdb4.8 Berkeley DB Wallet storage (only needed when wallet enabled)
qt GUI GUI toolkit (only needed when GUI enabled)
protobuf Payments in GUI Data interchange format used for payment protocol (only needed when GUI enabled)
libqrencode QR codes in GUI Optional for generating QR codes (only needed when GUI enabled)

For the versions used in the release, see release-process.md under Fetch and build inputs.

System requirements

C++ compilers are memory-hungry. It is recommended to have at least 1 GB of memory available when compiling Masternodecoin Core. With 512MB of memory or less compilation will take much longer due to swap thrashing.

Dependency Build Instructions: Ubuntu & Debian

Build requirements:

sudo apt-get install git build-essential libtool autotools-dev autoconf pkg-config libssl-dev libcrypto++-dev libevent-dev libminiupnpc-dev libgmp-dev

for Ubuntu 12.04 and later or Debian 7 and later libboost-all-dev has to be installed:

sudo apt-get install libboost-all-dev

db4.8 packages are available here. You can add the repository using the following command:

    sudo add-apt-repository ppa:silknetwork/silknetwork
    sudo apt-get update

Ubuntu 12.04 and later have packages for libdb5.1-dev and libdb5.1++-dev, but using these will break binary wallet compatibility, and is not recommended.

for Debian 7 (Wheezy) and later: The oldstable repository contains db4.8 packages. Add the following line to /etc/apt/sources.list, replacing [mirror] with any official debian mirror.

deb http://[mirror]/debian/ oldstable main

To enable the change run

sudo apt-get update

for other Debian & Ubuntu (with ppa):

sudo apt-get install libdb4.8-dev libdb4.8++-dev

Optional:

sudo apt-get install libminiupnpc-dev (see --with-miniupnpc and --enable-upnp-default)

Dependencies for the GUI: Ubuntu & Debian

If you want to build Masternodecoin-Qt, make sure that the required packages for Qt development are installed. Qt 5 is necessary to build the GUI. If both Qt 4 and Qt 5 are installed, Qt 5 will be used. Pass --with-gui=qt5 to configure to choose Qt5. To build without GUI pass --without-gui.

For Qt 5 you need the following:

sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler libcrypto++-dev

libqrencode (optional) can be installed with:

sudo apt-get install libqrencode-dev

Once these are installed, they will be found by configure and a Masternodecoin-Qt executable will be built by default.

Notes

The release is built with GCC and then "strip masternodecoind" to strip the debug symbols, which reduces the executable size by about 90%.

miniupnpc

miniupnpc may be used for UPnP port mapping. It can be downloaded from here. UPnP support is compiled in and turned off by default. See the configure options for upnp behavior desired:

--without-miniupnpc      No UPnP support miniupnp not required
--disable-upnp-default   (the default) UPnP support turned off by default at runtime
--enable-upnp-default    UPnP support turned on by default at runtime

To build:

tar -xzvf miniupnpc-1.6.tar.gz
cd miniupnpc-1.6
make
sudo su
make install

Berkeley DB

It is recommended to use Berkeley DB 4.8. If you have to build it yourself:

SILK_ROOT=$(pwd)

# Pick some path to install BDB to, here we create a directory within the silk directory
BDB_PREFIX="${SILK_ROOT}/db4"
mkdir -p $BDB_PREFIX

# Fetch the source and verify that it is not tampered with
wget 'http://download.oracle.com/berkeley-db/db-4.8.30.NC.tar.gz'
echo '12edc0df75bf9abd7f82f821795bcee50f42cb2e5f76a6a281b85732798364ef  db-4.8.30.NC.tar.gz' | sha256sum -c
# -> db-4.8.30.NC.tar.gz: OK
tar -xzvf db-4.8.30.NC.tar.gz

# Build the library and install to our prefix
cd db-4.8.30.NC/build_unix/
#  Note: Do a static build so that it can be embedded into the exectuable, instead of having to find a .so at runtime
../dist/configure --prefix=/usr/local --enable-cxx
make
sudo make install

Note: You only need Berkeley DB if the wallet is enabled (see the section Disable-Wallet mode below).

Boost

If you need to build Boost yourself:

sudo su
./bootstrap.sh
./bjam install

Security

To help make your Masternodecoin installation more secure by making certain attacks impossible to exploit even if a vulnerability is found, binaries are hardened by default.

Hardening enables the following features:

  • Position Independent Executable Build position independent code to take advantage of Address Space Layout Randomization offered by some kernels. An attacker who is able to cause execution of code at an arbitrary memory location is thwarted if he doesn't know where anything useful is located. The stack and heap are randomly located by default but this allows the code section to be randomly located as well.

    On an Amd64 processor where a library was not compiled with -fPIC, this will cause an error such as: "relocation R_X86_64_32 against `......' can not be used when making a shared object;"

    To test that you have built PIE executable, install scanelf, part of paxutils, and use:

      scanelf -e ./masternodecoind
    

    The output should contain: TYPE ET_DYN

  • Non-executable Stack If the stack is executable then trivial stack based buffer overflow exploits are possible if vulnerable buffers are found. By default, silk should be built with a non-executable stack but if one of the libraries it uses asks for an executable stack or someone makes a mistake and uses a compiler extension which requires an executable stack, it will silently build an executable without the non-executable stack protection.

    To verify that the stack is non-executable after compiling use: scanelf -e ./masternodecoind

    the output should contain: STK/REL/PTL RW- R-- RW-

    The STK RW- means that the stack is readable and writeable but not executable.

Example Build Command

Qt Wallet and Deamon, CLI version build:

qmake && make && cd src && make -f src/makefile.unix

Deamon Only Buld:

cd src && make -f src/makefile.unix