git clone端口问题
ssh: connect to host git.host.de:4019 port 22: Connection refused
fatal: The remote end hung up unexpectedly
error: failed to push to 'ssh://root@git.host.de:4019/var/cache/git/project.git
编辑.ssh/config，指定端口
Host githost
HostName git.host.de
Port 4019
User root
