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<blockquote>Hint: The URL should starts with <b>https</b>://</blockquote> </p>
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####### only for Centos 6 start #######
wget http://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz
tar xvf autoconf-2.69.tar.gz
cd autoconf-2.69
./configure --prefix=/usr
make
sudo make install
cd ..
wget http://ftp.gnu.org/gnu/automake/automake-1.13.4.tar.gz
tar xvf automake-1.13.4.tar.gz
cd automake-1.13.4
./configure --prefix=/usr
make
sudo make install
cd ..
wget http://ftp.gnu.org/gnu/libtool/libtool-2.4.2.tar.gz
tar xvf libtool-2.4.2.tar.gz
cd libtool-2.4.2
./configure --prefix=/usr
make
sudo make install
cd ..
####### only for Centos 6 end #######
git clone https://github.com/litespeedtech/openlitespeed.git
cd openlitespeed
./configure --with-openssl=/usr --enable-http2
make
mv /usr/local/lsws/bin/openlitespeed /usr/local/lsws/bin/openlitespeed.backup
cp ./src/openlitespeed /usr/local/lsws/bin/openlitespeed
service lsws restart