linux 防火墙和SSH配置

出错信息:
引用Creating SSH2 ECDSA key; this may take some time ...unknown key type ecdsa
dpkg: error processing openssh-server (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
openssh-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

解决:

sudo touch /etc/ssh/ssh_host_ecdsa_key
sudo apt-get update
sudo apt-get -y install openssh-server

参考:http://www.victorclaessen.nl/stuff.php