在执行git clone命令报错
Unable to negotiate with xxx.xxx.xxx.xxx port 12345: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1
Unable to negotiate with xxx.xxx.xxx.xxx port : no matching key exchange method found. Their offer: diffie-hellman-group1-sha1
解决：
# export GIT_SSH_COMMAND='ssh -o KexAlgorithms=+diffie-hellman-group1-sha1'
这种方法每次新开git窗口，都需要重新输入export GIT_SSH_COMMAND
避免的方式就是打开.bashrc文件，在终端输入：$ vim ~/.bashrc ，然后向.bashrc文件写入
export GIT_SSH_COMMAND='ssh -o KexAlgorithms=+diffie-hellman-group1-sha1'
完毕