一些ssh通用的配置

是写~/.ssh/config的，由于文件后面一堆host，不太适合放到github，所以把通用的配置放这里

ServerAliveInterval 180
AddressFamily inet
Compression yes

# make connection faster
# http://blogs.perl.org/users/smylers/2011/08/ssh-productivity-tips.html
GSSAPIAuthentication no

# share ssh session
ControlMaster auto
ControlPath /tmp/ssh_mux_%h_%p_%r

# keep alive for 2h
ControlPersist 2h