change defalut timeout to 600ms
change defalut timeout to 600ms

Signed-off-by: Qinglan Peng <8569eeb05df840f0de690ee3ca13850837cf39a3@zju.edu.cn>

pengqinglan/PrivateSocks,pengqinglan/PrivateSocks,pengqinglan/PrivateSocks,pengqinglan/PrivateSocks