Install znc on a cheap debian-linux hosting

znc.sh

sudo apt-get install libperl-dev libtcl8.6 libtclap-dev libtcl-perl perl-base perl-depends perl-modules python3 python3-dev perl python tcl tcl-tclreadline

curl -O http://ufpr.dl.sourceforge.net/project/swig/swig/swig-3.0.10/swig-3.0.10.tar.gz
tar xf swig-3.0.10.tar.gz 
cd swig-3.0.10/
./configure
make && make install

dd if=/dev/zero of=/var/swap.img bs=1024k count=1000
mkswap /var/swap.img 
chmod 600 /var/swap.img 
swapon /var/swap.img

git clone https://github.com/znc/znc.git --recursive
cd znc
localedef -i en_US -f UTF-8 en_US.UTF-8
./autogen.sh
  
./configure --enable-python --enable-perl --enable-tcl
make && make install 
znc --makeconf