ckpt_server has its own stack of network implementation. do i need to overhaul it??
+yes, I'm working on it.
+
+ckpt_server sends packets that contain IP address. thinking about how to deal with it.
+
+getSockAddr(): call getsockname() for given fd. if it is INADDR_ANY(0.0.0.0), it replaces the ip address to local ip address. only ckpt server code calls it.
+
+why ckpt server requires it????
+
+
+
{section: On-going}
Working on Phase 2.
