build_ios.sh ref to https://github.com/Comsecuris/ios_dropbear/blob/master/build.sh 1.download dropbear sourcecode from https://github.com/mkj/dropbear/releases/tag/DROPBEAR_2020.81 2.cp build_ios.sh to dropbear-DROPBEAR_2020.81 3.cd dropbear-DROPBEAR_2020.81 and run build_ios.sh 4.cp "dbclient dropbear dropbearconvert dropbearkey scp" to deb/usr/bin/ 5.run build_deb.sh