解决Ubuntu16安装ncrack0.5遇到error: ‘http_digest_proxy_authorization’ was not declared错误。
在Ubuntu16安装ncrack0.5遇到以下错误：“http_digest_proxy_authorization’ was not declared”
解决办法：( 安装libssl-dev)
1.安装libssl-dev: apt-get install libssl-dev
2.重装安装ncrack：
./configure
make
make install