cd /tmp

# get OpenSSL 1.0.1g
wget https://www.openssl.org/source/openssl-1.0.1g.tar.gz
wget https://www.openssl.org/source/openssl-1.0.1g.tar.gz.md5
wget https://www.openssl.org/source/openssl-1.0.1g.tar.gz.sha1

md5sum openssl-1.0.1g.tar.gz
cat openssl-1.0.1g.tar.gz.md5

tar -xf openssl-1.0.1g.tar.gz

cd openssl-1.0.1g.tar.gz

# get zlib.h
sudo apt-get install zlib1g-dev

# config OpenSSL
./config --prefix=/usr \
	--openssldir=/etc/ssl \
	--libdir=lib \
	shared \
	zlib-dynamic 

# make
sudo make MANDIR=/usr/share/man MANSUFFIX=ssl install &&
install -dv -m755 /usr/share/doc/openssl-1.0.1g &&
cp -vfr doc/* /usr/share/doc/openssl-1.0.1g

# install
sudo make install

# verify
openssl version -a